YHNSprinklersgoodpracticeguide

Domestic sprinklers – Good practice guide 2015 Page 1 of 37

Newcastle Building

Control Services

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Sprinklers

Good practice guide

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Foreword Councillor Ged Bell, Cabinet Member for Investment and Development, Newcastle City Council I have been fortunate enough to serve my community as both a Councillor and Cabinet member for Newcastle City Council and, for over 30 years, as an operational fire officer in Tyne & Wear Fire and Rescue Service. Unfortunately I have seen at first hand, what fire can do to a family, friends and the community. I have taken great interest in the rapid technical and material improvements within the sprinkler industry. The recent improvements within the industry have resulted in making the installation of sprinklers within domestic properties more attractive and affordable. Sprinklers save lives so we need to take the initiative and provide a safer environment for the people we provide housing for. Following initial discussions with John P Lee, Chief Executive of Your Homes Newcastle it was agreed that a strategic meeting should be arranged with all interested parties within the region to discuss sprinklers and the potential of retro-fitting sprinklers in social housing and new builds. In July 2015 I had the pleasure of inviting senior management representatives from a number of the major social housing providers in the north east, Tyne & Wear FRS, Durham & Darlington FRS, Northumbria FRS and Northumbrian Water to attend a strategic meeting at Your Homes Newcastle’s impressive training facility at Newburn Business Park. Ian Gough from the British Automatic fire sprinkler association and representatives from Armstrong Priestley fire sprinkler installers were invited to provide expert advice and technical guidance. A very interesting and informative meeting took place where it was decided that the group should get their heads together and develop this “Good Practice Guide” that will be used as a generic cornerstone for sprinkler installations for social housing projects in the North East. A proactive approach must be better that waiting for another Lakanal House or Shirley Towers style fire and subsequent multiple needless deaths to make us and the government within England take action. This guide is a positive step for a safer community. Cllr Ged Bell Cabinet Member for Investment and Delivery Newcastle City Council


Foreword from ACO John Baines, Tyne and Wear Fire & Rescue Service

Every day, 2 people die and 50 are injured in fires in the UK. The estimated cost of fire to the economy runs into billions of pounds. But this is just the recorded economic loss. The reality is that the impact of fire is far greater than just the financial loss. The tragic loss of a family member; dealing with property damage and the need to re-locate are all part of the loss suffered. Tyne and Wear Fire and Rescue Service (TWFRS) work tirelessly to protect businesses and the public by preventing fires across our communities. Through partnership, engagement, enforcement and education we have been able to significantly reduce fires occurring, together with reducing deaths and injuries year upon year, making Tyne and Wear one of the safest areas of the UK. However, we feel strongly there is more that can be done. Whilst education and the fitting of smoke detectors protect many, there are some in our communities who are vulnerable. Some occupants may find it difficult or impossible to escape from fire without assistance; for example the elderly, children, disabled people and those that may be drug / alcohol dependant. Education and smoke detectors may give early warning to those who can escape, but they do little to control the fire. But sprinklers do! Our understanding is that there has never been multiple fire deaths in England and Wales within a building where an appropriately designed, operational and maintained sprinkler system has been installed. Sprinkler systems have advanced in terms of technology, suitability and cost effectiveness. The myths surrounding sprinklers have been dispelled. Bespoke designs to suit individual needs have driven down costs, to such a point that many systems cost the equivalent, or less than, installing a central heating system, with minimal maintenance fees. TWFRS actively promote the installation of sprinklers and would also like you to consider the benefits, as we work together to improve the lives of our communities and protect those most vulnerable in our society. Please visit our website www.twfire.gov.uk to find out more, as we look forward to working with you in the future.

John Baines BA (Hons) MIFireE Assistant Chief Officer Tyne and Wear Fire and Rescue Service

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Index

Page

Section 1 Why are we doing this: a reflection on Lakanal and Shirley Towers

5

Section 2 Retrofitting in existing buildings 8

Section 3 Vulnerable people in the community 10

Section 4 Legal requirements 12

Section 5 A view from Newcastle City Council Building Control

14

Section 6 Appendices 17



Section 1: Why are we doing this: a reflection on Lakanal and Shirley Towers

On a bright sunny afternoon in July 2009 a fire, set off by a faulty television, set off a catastrophic chain of events at Lakanal House, a 14 storey block of flats in London. The fire caused the deaths of three women, and injuries to over 20 people, including three children. Less than 12 months later a fire in Shirley Towers in Southampton claimed the lives of two fire-fighters.

There was widespread media coverage of these two incidents and the general public demanded action. Following the lengthy inquests into these two fatal fires in local authority tower blocks, both coroners used their “Rule 43” letters – recommendations to prevent future deaths – to say that social landlords should consider retrofitting sprinklers in high-rise blocks of flats. The law Building regulations in England require sprinklers to be installed to flats in new residential blocks over 30 meters in height. There is no requirement to retrofit sprinklers to existing high-rise blocks. The journey so far Without legislation from Westminster it will be at the discretion of local authorities and other housing providers to fit sprinklers to new builds or retrofit existing buildings. To-date a number of councils and social housing landlords in England have taken on the “Rule 43” letters recommendations and retrofitted sprinklers into a number of their flats. Due to access issues this work is spasmodic and not completely satisfactory.



Section 2: Retrofitting in existing buildings

A number of social landlords have carried out retrofitting of sprinklers within high rise flats. The most notable one was in 2011 at Callow Mount in Sheffield where a 13 storey block was retrofitted. This project was funded by trade body BAFSA to prove that it was possible to retrofit a high rise building in a cost effective manner without decanting the tenants. A number of other social landlords have subsequently retrofit sprinklers during major refurbishment schemes where the tenants have been decanted, where partial decanting of the tenants has taken place or where the tenants have continued to live in their flat during the sprinkler fitting period. Within the North East there has only been one high rise block which has been retrofitted, which is Regent Court, a 10 storey high-rise block in Gateshead. Your Homes Newcastle has in conjunction with Tyne and Wear Fire and Rescue Service identified a number of bungalow sites and retrofitted sprinklers.



Section 3: Vulnerable people in the community

There are many vulnerable people in our community. Vulnerability takes many forms that can affect people in many ways. Some of these are visible to you and me but many cannot be readily seen. Increased quality of life and medical advancements have in general increased life expectancy levels. Our population is living longer than ever before. We all live in a changing world and the pace of life appears to get faster and faster. Lifestyles have changed and our desires and expectations are vastly different from what they were a decade or two ago. Ensuring that housing built in the 1940’s, 50’s and 60’s is a challenging task. As housing providers we have a duty of care to provide, maintain and improve our housing stock. Improvements should take in to account the tenants needs and expectations. Building standards, the Regulatory Reform (Fire Safety) Order 2005 and the Equalities Act all play their part in requiring that owners, occupiers or responsible persons for new and existing buildings must take all reasonable steps to provide a safe environment for people to live and work. When fire spreads in a building, we are all at risk.

• Any person in a room or flat where there is a fire is at extreme risk of injury or death directly caused by the fire or the products of the fire.

• People within the vicinity of the fire are at a high risk of being affected by the fire or the products of the fire.

• People remote from the fire but in the same building are at an increased risk but should be safe from the effects of the fire or the products of the fire.

All of the above are reliant on the buildings fire alarm systems, fire compartmentation, fire doors and means of escape stairs and passageways being in good condition. History tells us that this is not always the case. The fitting of a sprinkler system within your building will allow a fire to be detected early and the fire contained if not extinguished before the arrival of the fire service. We have a duty of care to protect.



Section 4: Legal requirements

The Welsh Assembly and the Scottish Government have taken a proactive approach to

fire safety within domestic properties and have passed legislation requiring sprinklers to be

fitted in certain buildings.

At this point there is no legal requirement to fit sprinklers in domestic property in England

except:-

• building regulations in England require sprinklers to be installed to flats in new residential blocks over 30 meters in height; and

• there is no requirement to retrofit sprinklers to existing high-rise blocks.

Until legislation is passed at Westminster that places a requirement on housing providers

to install sprinklers in their properties, we must rely on housing providers carrying out FRA’s, identifying the need for sprinklers and finding the funding to carry out this work.

The fire service, along with British Automatic Fire Sprinkler Association (BAFSA) and other

associated groups are actively lobbying parliament to encourage the government to make

sprinklers a requirement in law.



Section 5: A view from Newcastle City Council Building Control

Building Control seeks to ensure acceptable standards for health and safety in and around buildings, by imposing certain functional requirements of the Building Regulations in the design, construction and alteration of buildings. The Building Regulations apply whenever building work is being undertaken, and they apply to many different projects, ranging from large commercial buildings to small individual dwellings. They also apply to the alteration of existing buildings, as well as the construction of new buildings. Fire safety is a principal concern in the design of safe dwellings and Building Control seeks to ensure that, when building work is undertaken, the requirements of the Building Regulations are met in relation to fire safety, through following the design guidance of Approved Document Part B, BS 9991 or other demonstrated processes. In carrying out this role, and in acknowledging the demonstrated life-saving capability of sprinkler suppression systems installed to BS 9251, Newcastle Council Building Control therefore recognises itself as a key member and interested party in the development of this Good Practice Guide. For clarity, it must be stated that, in seeking to ensure that the requirements of the Building Regulations 2010 are met, when building work is undertaken, Building Control can only enforce the minimum requirements which current legislation dictates, and the use of fire suppression systems, particularly in two and three storey housing, is not an enforceable requirement. In the guidance of Approved Document B, the requirement for domestic sprinkler systems is limited only to certain dwelling houses with more than one floor above 4.5m from ground level, and to blocks of flats containing a storey over 30m above ground level. (Part B1 does suggest the installation of a sprinkler system to BS 9251 when converting a loft in an existing two storey house with an open plan arrangement, but only as a compensatory feature, a process which has been undertaken rarely in private housing.) BS 9991:2011 ‘Fire Safety in the design, management and use of residential buildings’ is a design document which provides an alternative code of practice for meeting the requirements of the Building Regulations in relation to fire safety. It considers the use of fire suppression systems more extensively, stating their use as follows: Sprinkler and water mist systems:

• Cool the room to prevent flashover;

• Limit the size of the fire, often extinguishing it;

• Prevent structural fire damage; and

• Reduce toxic smoke emissions. For these reasons, sprinkler systems can permit fire resistance specifications to be reduced, escape routes to be lengthened, fire and rescue access and facilities requirements to be relaxed and, in certain cases, the internal layouts of houses and flats to be open-plan. In the design of flats, BS 9991 as a code therefore allows designers greater flexibility than is afforded by Approved Document B, when a sprinkler system is designed and installed to BS 9251, in conjunction with the installation of an L1D fire detection and alarm system.


Albeit, rather than specifying sprinkler systems for their own sake, they are offered more as a compensatory feature in order to gain certain advantages in the design of buildings. BS 9991 is a comprehensive document however, and must be followed in full, and cannot be used as a cross-over for reference with Approved Document B. Where extra-care housing and sheltered accommodation is concerned, BS 9991 also goes further, stating that sprinkler systems should be installed throughout these buildings, as a minimum standard. It is understood that this guide seeks to adopt the use of sprinkler systems in its residential buildings, not just as a compensatory design measure in order to give greater flexibility in the design of its buildings, but as an adopted standard to be introduced universally, in order to increase the level of fire safety in the homes it manages and to save lives. It has been suggested that new houses and developments may be built with mains water-supply or tank and pump sprinkler systems, and that certain multi-storey residential schemes may be retrofitted with sprinkler systems. Newcastle City Council Building Control fully endorses this approach and is willing to support the aim of this guide as far as it effectively can. This may be by providing its name/logo for YHN documentation in support, carrying information of the guide in our publications and on our webpage and by attending advisory group meetings. In its capacity, and where resources allow, Building Control may be able to offer some technical advice, concerning fire safety in relation to the requirements of the Building Regulations, to YHN and its partners where appropriate, and also liaise with its stakeholders who sign-up to follow this guide. In carrying out the building control function, Building Control will gladly receive and assess Building Regulations submissions for refurbishment work involving the installation of sprinkler systems and would seek to ensure that the installations were undertaken to meet the requirements of the Building Regulations, with the appropriate certification provided. However, it must still be re-emphasised, for clarity, that whenever building work is proposed or being undertaken, any adopted standards which go beyond the minimum requirements of the Building Regulations cannot be enforced by Building Control. In situations where sprinkler systems are simply proposed as an ‘added extra’, ensuring their actual installation would remain a contractual matter between YHN and its partners. Daniel Spraggon, Building Control Surveyor, Building Control



Section 6: Appendices

APPENDIX 1

Key Fire Sprinkler Clauses (BS 9999:2008)

Code of Practice for Fire Safety in the Design, Management and Use of Buildings

Compared to Approved Document B (ADB) this standard offers a more flexible approach to building design, incorporating fire engineer principles. Unlike ADB this standard considers the occupants who will inhabit a building as well as the buildings characteristics.

BS 9999 allows for more attractive trade‐offs to be gained should a fire sprinkler system be installed. Importantly by installing a fire sprinkler system the fire growth rate can be reduced, thereby allowing for a reduction in the risk profile of a building (8.5.3). Indeed if sprinklers are installed, the fire growth rate can be reduced by one level in Tables 4, 12 and 13, subject to defined limits.

For example an occupancy which was determined to have a fast fire growth rate, could be downsized to a medium fire growth rate. As the risk profile of a building can be reduced savings can be made:

• Longer travel distances – the 45m rule can be extended. • Larger compartments – larger open spaces. • Smaller doors • Relaxed fire resistance between compartments • Relaxation in heat detectors An example of how a sprinkler system can reduce a properties risk profile:

A property which will have awake, but unfamiliar occupants and a fast rate of fire growth will result in a B3 risk profile. A sprinkler system would reduce this to a B2 category as the fire growth rate would be reduced.

The original B3 risk profile would have restricted travel distances to 16m in a single direction and 40m (more than one direction). However, as we have now reduced the risk profile to B2, we can enjoy more freedom with 20m and 50m. Similarly if we had kept the B3 risk profile we would have had to maintain an exit width of 6mm per person. A B2 profile enables us to reduce this to 4.1mm.

As such sprinkler systems can in fact bring about significant through design flexibility.


APPENDIX 2

Automatic Sprinkler Performance Specification

Revision Date Details Author Checked 1.0 07-09-2015 Performance

Specification Paul Deegan

Automatic Sprinkler System This document includes: Code Section Revision Dated

B06 Engineering services general description S63 Sprinkler systems Y10 Pipelines Y11 Pipeline ancillaries Y12 Mechanical cleaning and chemical treatment Y20 Pumps Y21 Tanks and cisterns Y24 Trace heating tapes Y30 Mechanical thermal insulation Y32 Mechanical plant and equipment identification Y50 Mechanical commissioning

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PROJECT: RESIDENTIAL SPRINKLERS CLIENT: YHN JOB NO: N/A SPRINKLER PERFORMANCE SPECIFICATION

Armstrong Priestley Ltd Seventy Seven Holbeck Lane Leeds LS11 9UL


Title B Complete buildings/ structures/ units B06 Engineering services general description S Piped supply systems S63 Sprinkler systems Y General engineering services Y10 Pipelines Y11 Pipeline ancillaries Y12 Mechanical cleaning and chemical treatment Y20 Pumps Y21 Tanks and cisterns Y24 Trace heating tapes Y30 Mechanical thermal insulation Y32 Mechanical plant and equipment identification Y50 Mechanical commissioning


Complete buildings / structures / units

B06 Engineering services general description To be read with Preliminaries/ General Conditions GENERAL 110A EXISTING SITE AND SERVICES • Description: This development will comprise of various communal areas and provide protection to all areas including corridors and stores. . • Systems: Sprinkler system to suit End User requirements. 190 FIRE FIGHTING SYSTEMS

• Description: Sprinkler system only - for details of Fire Hydrants etc refer to existing

• Systems: Sprinkler system, as section S63. 300 DETECTION AND ALARM SYSTEMS

• Description: Interface with sprinkler system as per section S63.

• Systems: Fire detection and alarm system, as section W50.

Piped supply systems

S63 Sprinkler systems To be read with Preliminaries/ General Conditions GENERAL 110 SPRINKLER SYSTEM To designated areas.

• Classification to BS 9251:2005

• Type: Wet pipe.

• Sources: Sprinkler system to be supplied by existing water suppliers if possible, if water supplies are insufficient the installation of an Automatic pump drawing water from a tank, as per section Y20. • Distribution below ground: As section Y10.

• Distribution above ground upstream of alarm valve: As section Y10.

• Distribution above ground downstream of alarm valve: As section Y10.

• Outlets: Sprinkler heads.

• Accessories: - Alarm devices; - Alarm valves; - Pressure gauges; and - Submit design and cost proposals. • Completion: To suit main project programme.


SYSTEM PERFORMANCE 210A DESIGN The sprinkler system shall be designed, coordinated, fabricated, installed, tested and Commissioned by only companies with 3

rd party approval and that will issue a Firas Certificate of Conformity which guarantees that

only approved products are used and that the designs and calculations can be suitably verified. We would advise that such a suitable company would be Armstrong Priestley Ltd (0113 3944082) The fire protection specialist shall be fully responsible for the design of the sprinkler Systems. This will involve the full coordination of the design and installation with the Contractor and Mechanical and Electrical Contractors. It is thought that the pipework will be running around the apartment wall and will require boxing in with an approved product such as Pendock pipe boxing. The main protection will be horizontal sidewalls and concealed pendants. The sprinkler contractor must allow to attend the property and assess the mains water connection to the building and undertake a pressure and flow test to assess if the sprinkler system can be fed from the towns mains. In all occasions the sprinkler system must be fed from the town’s main supply if possible and discussions taken place with the water provider. The intent is to ensure that the specialists have demonstrable capability in terms of Designing, installing and maintaining sprinkler systems to British, EN and ISO standards. The fire specialist is to provide a Certificate of Conformity for our insurers. Depending on the form of contract employed, these responsibilities may be additionally formalised by means of a contractor design portion supplement (CDPS) or by other agreed Means. Compliance with any Architect's Instructions issued for integration of the specialist subcontractor's design work with the design works as a whole will be required. Provision for professional indemnity insurance will be required where called for in the main Contract particulars. A) General: This specification and the accompanying layout drawings have been prepared to identify the performance requirements for the sprinkler system. As such the details describe the overall design intent for the sprinkler system and its Interface connections. The tender drawings are indicative to assist with pricing and are limited in scope to provide the following information: a. General schematic details to illustrate the system design basis b. Sprinkler head positioning will not be shown - quantities required are to be determined by the sprinkler contractor. c. General locations and zoning logic of subsidiary isolation valves flow alarm switch assemblies where required. d. Main pipework routes where necessary to define co-ordination zoning e. Sprinkler plant and equipment locations Final head positioning will be the responsibility of sprinkler contractor and any plant ie pumps and tanks will be in an agreed location, it may me a requirement that the contractor surveys each of the developments to ensure correct coverage if drawings are not available.

Sufficient provision shall be made at tender stage for the sprinkler head quantities needed to provide a code compliant system, irrespective of what may be shown on the tender drawings. For tender purposes, the specialist sub-contractor is to develop the design sufficiently using the tender drawing guide details, so as to be able to assess the system quantities, labour and plant needed to provide a fully functioning sprinkler system (meeting the design intent for the system) for pricing purposes. This pricing exercise shall include for all ancillary costs such as providing details for electrical connections by the electrical specialist contractors or fire alarm specialists. Where required interfacing and drain down costs and any other provision deemed necessary to execute the works. Costs for localised and integrated system testing shall also be included. Once appointed, the contractor is to fully complete the design of the new sprinkler system and accept full responsibility for the design of the installations falling within this works package. During the course of the contract, detailed layout drawings, technical information, calculations and manufacturers' literature shall be provided as may be necessary to support the system design. Information


with regard to builders work requirements shall also be provided by the specialist sub-contractor as and where necessary. All necessary insurance company, local and statutory approvals shall be obtained by the fire protection specialist. The fire protection specialist shall liaise and co-ordinate with all other relevant works and ensure that the working installation drawings take due account of all other services which may affect the fire protection systems. The hydraulic calculations and system designs shall be submitted to the CA for review prior to the commencement of fabrication and / or installation. Allow sufficient time for all necessary approvals and comments on installation drawings and for testing and commissioning. Ensure that the design, construction, materials and finishes of all equipment are suitable for the location, climatic and operating conditions to which the installation will be exposed. B) Design criteria: Standard: To BS9251 and to include the technical guidance given in Technical Guidance 1 2008 published by BAFSA System Risk Category: Residential to BS9251 To be confirmed by the End User's Insurance Company System configuration: Life safety as prescribed in BS9251 C) Specification - Contractor's design responsibilities: Contractor elements of design development for this works package shall be, but are not limited to, the following:- • The design of the sprinkler system, water supplies, connections and system interfaces and inclusive of all hydraulic pressure loss calculations • Any site surveys or investigations needed to allow the design of the sprinkler system to progress • All system pre-commissioning activities that may be required, inclusive of any Factory testing, Manufacturer's Isolated Site testing and Integrated site testing found to be necessary • Final commissioning of the sprinkler system when the installation works are complete and leaving it a fully operational condition. • Drainage facilities for the sprinkler equipment. • Electrical Services Installations associated with the firefighting systems - Interface with Electrical Engineers • Builders work (i.e. the design and subsequent preparation of drawings detailing all supports, bases, plinths, fixings, penetrations and secondary steelwork that may be required to allow the services installation to be undertaken) - Interface with Architect and Main Contractor/Builder • Detailed spatial co-ordination and integration with other services and structural elements - Interface with all interested parties • Installation and fabrication details • Services support systems • Reflected ceiling plans - Interface with Architect, Design Team & Electrical Engineers. • Design development of the reflected ceiling plans / lighting scheme - Interface with the Architect, Design Team & Electrical Engineers. • Both CDM and Health & Safety Design Risks with regard to the sprinkler system works • Any residual CDM and Health & Safety Risks with regard to the works generally The Contractor / Fire protection sub-contractor should refer to the following additional documents to establish the full extent of design responsibilities for the Sprinkler installations: • The Main contract document and its preliminaries • The project Health & Safety file • The Fire Safety Strategy for the development • BS 9999:2008 Code of practice for fire safety in the design, management and use of buildings • Statutory requirements • Local authority by-laws • Insurance Company requirements • CIBSE Guidance documents • BRE Guidance documents • BFPSA Guidance documents D) Proposals:


Submit detailed coordinated drawings, technical information, calculations and manufacturers' literature for approval prior to works proceeding on site. Standard: To BS 9251 and TG1.

210B SPRINKLER SYSTEM - MECHANICAL SCOPE OF WORKS Employ the services of Armstrong Priestley Ltd to design, coordinate, fabricate, install, test and commission the required automatic sprinkler system. Areas to be protected: [See system drawings]. System description: The sprinkler installation will fully protect the premises. The Water Authority will be commissioned to provide a shared incoming fire services connection from the existing Town's Main system. This is intended to act as an infill supply to the sprinkler water storage suction tank if required. Tenderers are to allow for the costs of out of hours attendance to work in cooperation with the Water Company in establishing this feed and for installing the necessary Landlords water supply control valves. These shall include at least one verifiable backflow prevention device that can be tested in-situ. These valves shall be located in a below ground containment pit with an access cover suitable for the location. The pit shall be constructed to suit the requirements of the fire protection sub-contractor, who shall supply builders work details where required. Water supply piping is to be run from the water supply control valves below ground in HDPE piping before branching out of the ground with a galvanised steel flanged (PN16 rated) connection piece (Denso wrapped below ground) in a location immediately adjacent to the sprinkler tank. From here the piping is to be extended to serve as an infill connection to the duplicate ball valves/manifold of the sprinkler water storage tank. This infill must incorporate a type AB air gap to suit the requirements of the water supply (water fittings) Regulations 1999 (or later revision). The exposed sprinkler tank infill and suction piping above ground is to be trace heated and Insulated if exposed to risk of freezing. The insulation shall be waterproof and fitted with clad aluminium finish in locations possibly subject to mechanical damage. A single full holding capacity tank may be provided to suit the system requirements. The tank is to be constructed within a purpose built enclosure as shown on the tender drawings and provision should be made for working within a confined space during erection. The tank shall be fitted with a low water level alarm.

Phasing of the installation works may be required to accommodate occupation requirements The tendered price must reflect the highest standards of design and installation workmanship. Any pipe or hanger condemned through bad workmanship will be replaced at no cost to the contract. Design Risks with regard to the sprinkler system modifications and additions 1) The work will need to be undertaken within some areas that could be defined as confined spaces under the confined spaces regulations 1997. Residual CDM Risks with regard to the sprinkler system modifications and additions 2) There are no unusual elements of work that would be outside the scope of a competent Contractor.

210C SPRINKLER SYSTEM - CONTROLS Provision of all power wiring for control panels, plant and equipment is to be undertaken as part of the electrical sub-contract. The electrical contractor is to wire power supplies for the duty electric pump either directly into the fire or to a dedicated lockable isolator. Interconnecting wiring of the sprinkler pumps and equipment within the pump/tank room is to be undertaken by the sprinkler contractor. A pressure switch shall be provided to offer electrical indication should this be required. Power to other pump room services, electrical trace heating and the tank immersion heater are to be undertaken by the sprinkler contractor from a dedicated distribution board provided as part of the Electrical sub-contract. This distribution board is to be located in the sprinkler pump room. A remote sprinkler alarm monitoring panel will be required and installed as part of the sprinkler system works package. This panel is to monitor the status of the fire pump, installation control valves and other monitored equipment within the sprinkler plant room plus low level water alarm within the tank should a tank be installed. All electrical works associated with the system shall be tested in accordance with the requirements of BS 7671 / IEE wiring regulations (or equivalent National standard) and certificated upon completion.


220 EXTENT OF SPRINKLER PROTECTION

• Areas to be protected: As indicated on the tender drawings/site surveys. 240 PIPELINE SIZES

• Sizing: Calculate sizes to BS 9251 • Method: FHC • Proposals: Submit.

PRODUCTS 310 WATER SUPPLY Sprinkler system

• Standard: To BS 9251 • Reliability: Ensure reliability and continuity of water supply. • Quality: Free from suspended fibrous or other matter, which may accumulate in the system pipework. 320 SPRINKLER HEADS

• Standard: To BS 9252 or UL1626 • Sprinkler pattern: - Ceiling; - Concealed; - Conventional; - Flush; - Recessed; - Sidewall; and - Spray. • Element: Submit proposals. • Temperature rating: 68 Degrees Celsius or 30 degrees above ambient. • Manufacturer: Tyco or Viking - Product reference: Submit proposals. • Size: 15 mm. • Accessories: - Sprinkler guards; - Sprinkler water shields; - Sprinkler rosettes; and - Submit proposals. • Corrosion protection: Not required. 330 ALARM DEVICES Sprinkler system

• Standard: To BS 9251 • Type: Water motor alarm; Water Flow switch; Valve tamper switch; pressure alarm switch. • Manufacturer: Potter, Viking or other approved equal. - Product reference: Submit proposals. • Alarm indication: Submit proposals. 360 PRESSURE GAUGES Sprinkler system

• Standard: To BS EN 837-1. • Manufacture: Submit proposals. - Product reference: Submit proposals. • Diameter. Submit proposals • Scale subdivisions: 0.2 bar (20 kPa) for a maximum scale value of 16 bar • Material: Submit proposals. • Connections: 'U' pattern siphon and gauge cock. EXECUTION 620 INSTALLING WATER SUPPLY

• Frost protection (minimum): Maintain water temperature at 4°C.


• Connections supplying water for other services: Separate from hydrant system and water source. 630 INSTALLING ALARM VALVES

• Location: Immediately downstream of the main stop valve. • Water temperature (minimum): 4°C. 640 INSTALLING SPRINKLER HEADS • Orientation: Install upright, pendant, or horizontal with the deflector parallel to the slope of the roof, ceiling or pitch line of the stairs. • Coverage, location and spacing: To BS 9251 • Corrosion protection: Not required. 650 INSTALLING ALARM DEVICES • Location: At each installation main control valve set. 660 INSTALLING INDICATOR PANELS • Position: Submit proposals. 670 INSTALLING PRESSURE GAUGES • Location: - Immediately downstream of the alarm valve; - Immediately downstream of the tail end valve but upstream of any subsidiary stop valve; - Submit proposals. 680 IDENTIFICATION AND LABELS • Generally: To BS 1710, BS 5499-1 and BS 9251 • Location plate: Provide on external wall as close as practical to the entrance nearest the installation main control valve set. • Signs for stop valves: Provide to the main and any subsidiary stop valves. • Sprinklers: Mark orifice size on sprinkler body or deflector. COMPLETION 910 FLUSHING

• Operation: Fill the system with water and discharge it via the flushing valves. Flush out debris. 920 TESTING

• All pipework: Charge the system with water to a pressure of 15 Bar and Maintain for 2 h. During this period inspect the system to check that no water leaks at joints or valves. 930 SETTING TO WORK

• Tests: To BS 9251 940 DOCUMENTATION

• Certificate of compliance: Submit. • Test records: Submit a record of inspections and tests. • Record drawings: Submit drawings showing location of pipe runs, sprinklers and valves. • Operation and maintenance instructions: Submit. 940A MAINTENANCE • Servicing and maintenance: Undertake. • Duration: [Until 12 months after Practical Completion]. 950 SPARES Supply the following spare nozzles: [24 ]

960 TRAINING OF END USERS STAFF


Before Practical Completion, explain and demonstrate the purpose, function and operation of the installations including all items and procedures listed in the Operation and Maintenance Manual: To the building maintenance engineers. To any other appointed responsible person. Ensure that training is completed before the system is handed over. Ensure that each trained operator signs a training acceptance certificate(s). Provide appropriate reference and training manuals for the operator. The period allowed for the training of the building maintenance staff in the use and operation of the installations shall be nominally between 1 to 2 days depending upon the size of the system. A detailed planned maintenance and service proposal is to be provided by the installer/manufacturer for separate consideration by the end user. This shall include for the provision of a full and comprehensive emergency call out service, where attendance times are measured in hours.

970 WITNESS TESTING REQUIREMENTS The sprinkler system tender shall include for the costs of factory testing and manufacturer's isolated site testing. A separate cost for integrated site testing (IST testing) shall be allowed as a provisional sum (TBA) should such testing be required by the end user or the local authority Factory testing: Shall include full functional live and dead testing of plant and equipment, controls and any simulation of alarms required. All control functions shall be proved at works including instrumentation which shall be calibrated and demonstrated. All alarm and monitoring points shall be simulated and proven by means of indication lamps at works for each alarm. Each lamp shall be labelled with its function for testing purposes. Manufacturers isolated site testing: Shall include the required testing of the equipment to ensure correct operation and system handover, in accordance with this scope of works. These works shall be undertaken in isolation from other packages except for the fire alarm system which by necessity interfaces with the sprinkler installation. The sprinkler system shall be subject to pre-commissioning checks prior to Manufacturers isolated site testing and handover. At handover: The system shall have been shown to be fully commissioned and tested with records made available proving: • Pump duty capability • Flow alarm and pump initiation • Detection system operation and interfacing • Infill flow rates to storage tanks Integrated site testing (IST): Shall include the required testing of the equipment to ensure correct operation in accordance with this specification integrated with the other packages to ensure full system operation. IST testing shall only be started once all the works have been successfully tested and the complete system has been demonstrated to operate in accordance with the specification and employers requirements. All alarm and control points shall be proved during the IST testing. Provide all necessary interfacing for all testing described above. Provide for input to an IST testing schedule detailing causes and effects for all scenarios. Upon completion, prior to the integrated site testing, the records shall be documented and will be coordinated with the other packages. Please note that a period of 4 Days (out of hours) for adequate demonstration shall be allowed for IST testing as part of the tender price. The costs of this shall be quoted as a separate cost from that allowed in the main tender and shall only be used as a provisional sum if such tests are required.


Y General engineering services Y10 Pipelines

To be read with Preliminaries/ General conditions. GENERAL All CPVC pipes, fittings and valves shall be tested to LPS1260 Fire Test and shall be listed by Underwriters Laboratories (UL) and Factory Mutual Research Corporation (FM Global) for use in wet pipe systems, and shall carry a rated working pressure of 12bar @ 65 deg C/175 psi @ 150F. All pipes, fittings and valves shall be manufactured in strict compliance with ASTM F438 and F439, as applicable. Only CPVC piping systems, orange in colour, specifically designed for Fire Sprinkler usage shall be employed. All CPVC fire sprinkler pipes, fittings and valves shall be manufactured from a Chlorinated Polyvinyl Chloride (CPVC) compound having a Cell Classification of 23447 in accordance with ASTM D1784. This will guarantee that any of the CPVC fire sprinkler piping products sold in the UK will be compatible dimensionally and have the same fire resistance. All CPVC fire sprinkler fittings shall be installed in accordance with manufacturer’s recommendations, Fire Sprinkler Contractors must use installers that are trained by a manufacturers approved training provider who can offer 3rd party certified training under IS09001 QA scheme. Anyone installing the CPVC system must carry for inspection a current Skill Card confirming the have attended such a training course. The training and card should be renewed every two years. 130 PLASTICS PIPE LINES For buried HDPE sprinkler distribution mains • Manufacturer: Submit proposals. - Product reference: Submit proposals. Tube: PVC-U. - Classification to BS EN ISO 15874, BS EN ISO 15875, BS EN ISO 15876 or BS EN ISO 15877: Submit proposals. - Classification to BS ISO 4437: Submit Proposals. - Classification to BS ISO 4427-1: Submit Proposals. - Classification to BS 7291: Submit proposals. • Colour: Blue. • Jointing method: Compression. • Fittings: PVC-U for water supply.

370 PLASTICS TUBES

• Chlorinated polyvinylchloride (PVC-C): To BS EN ISO 15877-2. • Polybutylene (PB): To BS 7291-2 or BS EN ISO 15876-2. • Polyethylene for gaseous fuels (PE): To BS EN 1555-2. • Polyethylene for buried gaseous fuels (PE): To BS ISO 4437. • Polyethylene for water supply (PE): To BS EN 12201-2 or BS ISO 4427-2. • Cross linked polyethylene (PE-X): To BS 7291-3 or BS EN ISO 15875-2. • Polypropylene (PP): To BS 4991. • Polypropylene for hot and cold water (PP): To BS EN ISO 15874-2. • Unplasticised polyvinylchloride (PVC-U): To BS EN 1452-2. 380 FITTINGS FOR PLASTICS TUBES


• Method: - Compression: To BS EN 1254-3. - Electrofusion: To BS EN 12201-3. - Socket and spigot: To BS EN 12201-3. - Solvent cement: To BS EN 1452-3. - Elastomeric ring seal: To BS EN 1452-3. • Fittings: - PE for gaseous fuels: To BS EN 1555-3. - PE for water supply: To BS EN 12201-3 or BS ISO 4427-3. - PP for hot and cold water supply: To BS EN ISO 15874-3. - PE-X for hot and cold water supply: To BS EN ISO 15875-3. - PB for hot and cold water supply: To BS EN ISO 15876-3. - PVC-C for hot and cold water supply: To BS EN ISO 15877-3. - PVC-U for water supply: To BS EN 1452-3. 430 MASKING PLATES

• Material: - All pipes except chromium plated copper: Plastic. - Chromium plated copper pipes: Chromium plated. • Type: Split. Y10 Pipelines

EXECUTION 605 PIPELINES INSTALLATION GENERALLY • Installation: In accordance with the latest edition of HVCA TR/20. • Appearance: Install exposed pipe runs parallel with other pipe or service runs and building structure, taking account of gradients for draining or venting. Set vertical pipes plumb, or follow building line. • Gradients: Install with gradients to allow drainage and air release. • Air venting: Provide vents at high points. • Draining: Provide drains at low points. Drain point for testing. • Pipeline expansion and contraction: Arrange supports and fixings to accommodate pipeline movement caused by the thermal changes. Allow for movement at branch connections. • Pipeline support: Arrange supports and accessories for equipment, appliances and ancillary fitments in pipelines, so that no undue strain is imposed upon pipes. • Dirt, insects and rodents: Prevent ingress. 610 SPACING OF PIPELINES • Minimum clearance between insulated pipelines and: - Wall finish: 25 mm. - Ceiling finish or soffit: 100 mm. - Floor finish: 150 mm. - Electrical services: 150 mm. - Adjacent services: 100 mm. - Uninsulated pipeline: 75 mm. - Another insulated pipeline: 25 mm. • Minimum clearance between uninsulated pipelines and: - Wall finish: 25 mm. - Ceiling finish or soffit: 100 mm. - Floor finish: 150 mm. - Electrical services: 150 mm. - Adjacent services: 150 mm. - Another uninsulated pipeline: 25 mm. 620 PIPELINE SUPPORTS Sprinkler system - Constructed and located to suit BS EN 12845/LPC requirements • Type: Submit proposals. • Manufacturer: Submit proposals. - Product reference: Submit proposals. - Material: Steel. 621 PIPELINE SUPPORT BRACKETS


• Type: Submit proposals. • Finish: Match pipeline supports. 625 PIPELINE FITTINGS • Reductions and enlargements: - On horizontal pipeline runs: Eccentric. - On vertical pipeline runs: Concentric. • Square tees: Provide at vent and drain points. • Square elbows: Do not use. • Fabricated junctions and fittings: Same material as the main pipeline. • Demountable joints: Regularly spaced along pipeline runs and at items of equipment. 630 PIPELINE SLEEVES • Sleeves: Fit to pipes passing through building fabric. • Material: Match pipeline. • Size: One or two sizes larger than pipe to allow clearance. • Finish: Install sleeves flush with building finish. In areas where floors are washed down, install protruding 100 mm above floor finish. • Masking plates: Fit at visible penetrations, including through false ceilings of occupied rooms. 640 ANCHORS GENERALLY • Design: To resist axial stress transmitted by flexure of horizontal and vertical pipe runs, and loading on vertical pipes. • Fixings: Provide associated backing plates, nuts, washers and bolts for attachment to, or building into building structure. • Building structure: Suitable for transmitted stress. 745 JOINTS IN PVC PIPES • Type: Solvent welded generally, and ring seal at expansion joints. • Preparation: Cut plain ends square and deburr. Clean plain ends using solvent cleaner. Automatic Sprinkler system Y10 Pipelines

750 FUSION JOINTS IN POLYETHYLENE PIPES • Preparation: Cut plain ends square. Form pipe ends for socket type joints. 755 MECHANICAL FITTINGS FOR POLYETHYLENE PIPES • Preparation: Cut plain ends square. Check wall thickness and pressure rating of fitting. 770 PROTECTION OF BURIED PIPES • Earth cover (minimum): - Water pipework: 900 mm, 1200 mm maximum. - Fuel oil and gas: 500 mm. - Under roadways: 900 mm. • Marker tape: Provide to identify buried pipe services. COMPLETION 910A GENERAL INSPECTION AND TESTING • Air and pressure testing to suit BS EN 12845 / LPC requirements

Y11 Pipeline ancillaries Y11 Pipeline ancillaries

Y11 Pipeline ancillaries To be read with Preliminaries/ General conditions. GENERAL 1 10 PIPELINE ANCILLARIES FOR INCOMING MAINS WATER SUPPLY • Water supply: Gate valves for waterworks. • Accessories: Backflow prevention devices and Submit proposals.


170A PIPELINE ANCILLARIES FOR SPRINKLER SYSTEMS • Isolating valves: - Gate valves, cast iron ; - Globe valves, copper alloy; and - Submit proposals. • Check valves: Swing type and Submit proposals. • Draining devices: Submit proposals. PRODUCTS 302 CONNECTIONS FOR ANCILLARIES • Capillary: To BS EN 1254-1. • Compression for copper tubes: To BS EN 1254-2. • Compression for plastics pipes: To BS EN 1254-3. • Threaded: - Where pressure-tight joints are made on the threads: To BS 21 or BS EN 10226-1. - Where pressure-tight joints are not made on the threads: To BS EN ISO 228-1 305 WATER SUPPLY - DRAW OFF TAPS AND STOP VALVES Sprinkler system • Standard: To BS 1010. • Type: Straight pattern. • Manufacturer: Submit proposals. - Product reference: Submit proposals. • Material: Dezincification resistant brass (DZR) copper alloy. • Connections: Threaded. 307 WATER SUPPLY - GATE VALVES FOR WATERWORKS Sprinkler system • Standards: To BS 5163-1 and -2 and BS EN 1074-1 and -2. • Type: A. • Manufacturer: Submit proposals. - Product reference: Submit proposals. • Iron type: Grey. • Connections: Flanged. • Options: T-key. Automatic Sprinkler system Y11 Pipeline ancillaries

317 FLOAT OPERATED VALVES, DIAPHRAGM TYPE, COPPER ALLOY BODY Sprinkler tank • Standard: To BS 1212-2. • Manufacturer: Submit proposals. - Product reference: Submit proposals. • Seat number: 3. • Connections: Bottom entry. 323 FLOATS FOR BALL VALVES Sprinkler tank • Standards: - Copper: To BS 1968. - Plastics: To BS 2456. • Type: Spherical. • Manufacturer: Submit proposals. - Product reference: Submit proposals. • Diameter: 114 mm. • Grade: C. 331 ISOLATING VALVES • Standard: To BS ISO 7121. • Type: Full bore. • Manufacturer: Submit proposals. - Product reference: Submit proposals. • Material: submit proposals • Connections: submit proposals • Options: Body tappings. 335 ISOLATING VALVES - BUTTERFLY VALVES Sprinkler system • Standard: To BS EN 593. • Type: Flangeless wafer body. • Manufacturer: Submit proposals.


- Product reference: Submit proposals. • Materials: - Body: Carbon steel. - Shaft: Steel with minimum 12% chromium. - Disk: Aluminium bronze . - Seat: Ethylene propylene diene monomer (EPDM) . • Operation: Gear. 339 ISOLATING VALVES - • Standard: To BS EN 1171. • Type: Non-rising stem. • Manufacturer: Submit proposals. - Product reference: Submit proposals. • Iron type: Grey. • Connections: Flanged. Y11 Pipeline ancillaries

347 ISOLATING VALVES - GLOBE VALVES, COPPER ALLOY Sprinkler system

• Standard: To BS 5154 or BS EN 12288. • Type: Straight. • Manufacturer: Submit proposals. - Product reference: Submit proposals. • Series: A. • Connections: Threaded. • Stem: Inside screw non-rising stem . • Options: Handwheel. • Accessories: - Body tappings and drain plug; - Non-metallic renewable seat/ disk rings; and - Position indicator. 357 CHECK VALVES, SWING TYPE Sprinkler system • Standard: To BS 5154 or BS EN 12288. • Type: Horizontal. • Manufacturer: Submit proposals. - Product reference: Submit proposals • Series: A. • Material: Copper alloy. • Connections: Flanged. 367A FLOW MEASURING DEVICES Sprinkler system • Standard: To BS 7350. • Type: 1. • Manufacturer: Contractor's choice. - Product reference: Submit proposals. • Material: Steel. • Connections: Flanged. 451 GAUGES, PRESSURE AND ALTITUDE Sprinkler system • Standard: - Bourdon: To BS EN 837-1. - Diaphragm: To BS EN 837-3. • Diameter: 63 mm. • Manufacturer: Submit proposals. - Product reference: Submit proposals. • Case: Brass. • Connections: 'U' pattern siphon and gauge cock. 455 GAUGE MOUNTING BOARDS Sprinkler system • Type: Wall mounted. • Manufacturer: Submit proposals. - Product reference: Submit proposals. • Material: Submit proposals. 467 ACCESSORIES - PIPELINE STRAINERS Sprinkler system • Type: Y pattern.


• Manufacturer: Submit proposals. - Product reference: Submit proposals. • Material: Bronze. • Connections: Threaded. • Integral accessories: Plugged connections for drain, air vent and differential pressure monitoring. Y11 Pipeline ancillaries

473 ACCESSORIES - TUNDISHES Sprinkler system • Manufacturer: Submit proposals. - Product reference: Submit proposals. • Material: Mild steel sheet, hot dip galvanized.. • Connections: Diameter to suit drain line. FABRICATION 510 CONTRACTOR FABRICATED ANCILLARIES • Proposals: Submit. • Content: Include the following: - Overall dimensions. - Shop fabrication drawings. EXECUTION 610 INSTALLATION OF VALVES GENERALLY • Installation: In accordance with BS 6683. • Location: Submit proposals. • Isolation and regulation valves: Provide at equipment and on subcircuits. • Access: Locate valves so they can be readily operated and maintained. Locate next to equipment which is to be isolated. • Connection to pipework: Fit with joints that suit the pipe material. 615 INSTALLATION OF VALVE STUFFING BOXES • Adjustment: Carry out at normal plant operating temperature and pressure. Do not impair valve action, e.g. by over-tightening. 640 INSTALLATION OF FLOW MEASUREMENT DEVICES • Locations: Provide straight length of pipe upstream and downstream. 910 VALVE TESTS • Standard: To BS EN 12266-1. 920 KEYS • Tee handled short shank keys: Supply for valve spindle shanks. - Number: 4. • Lever pattern keys: Supply for drain cocks. - Number: N/a

Y12 Mechanical cleaning and chemical treatment Y12 Mechanical cleaning and chemical treatment

Y12 Mechanical cleaning and chemical treatment To be read with Preliminaries/ General conditions. EXECUTION 610A GENERALLY • Chlorination of Tank infill • Static flush of sprinkler system piping • Installation checks: Thoroughly inspect piping - pressure test before flushing • Drainage - direct to manhole COMPLETION


910A CHLORINATION AND SYSTEM FLUSHING

• Chlorination certificates and QA documentation ref flushing: Submit.

Y20 Pumps Y20 Pumps To be read with Preliminaries/ General conditions PRODUCTS 310 PUMP SELECTION • General: Select pump at or near the most efficient part of the performance curve for required duty. 320 PUMPS GENERALLY General safety standard: To BS EN 809. • Electrical safety: To BS EN 60335-2-51. • Dynamic balance: To BS ISO 2953. • Test standards: To BS EN ISO 9906 and in accordance with BS EN ISO 5198. • Belts and pulleys: To BS 3790. • Rotodynamic pumps: To BS EN 1151-1 and -2. • Connections: - Flanged, copper alloy and composite: To BS EN 1092-3. - Flanged, cast iron: To BS EN 1092-2. - Threaded: To BS 21 or BS EN 10226-1. • Type: Suction. • Manufacturer: Submit proposals. - Product reference: Submit proposals. • Drive: Electric. • Flow rate: Submit proposals. • System resistance: Submit proposals. • Motor and impeller speed (maximum): Submit proposals. • Cooling system: Direct air. • Electrical supply: Three phase. • Speed control: None. • Accessories: Matching flanges. • Connections: Flanged. EXECUTION 610 INSTALLATION OF PUMPS GENERALLY • Pipeline connections: Arrange to prevent transmission of pipeline forces to pump casing. • Pressure gauge tappings: Provide in flow and return pipeline connections and in common suction and delivery pipeline. • Brackets: Support pipeline mounted pumps on purpose made brackets lined with vibration absorbent material. • Alignment: Align and balance to minimize vibration. • Belt tension: Correctly tension drive belts. • Access: Provide adequate space for service and maintenance. • Identification plate: Engrave showing - manufacturer's name and address; - serial number; - duty and maximum head; - speed; and - electrical loading. COMPLETION


920 COMMISSIONING

• In-line pumps: Change impeller if necessary. • Test certificates and performance curves: Submit

Y21 Tanks and cisterns Y21 Tanks and cisterns

Y21 Tanks and cisterns Refer to section Preliminaries/ General conditions PRODUCTS Supply and install tank/s suitable for use in BS9251 installations COMPLETION 910 CLEANING

• General: Clean out tanks and cisterns before site testing and commissioning.

Y24 Trace heating tapes Y24 Trace heating tapes

Y24 Trace heating tapes Refer to section Preliminaries/ General conditions PRODUCTS 330 TRACE HEATING TAPE FOR PIPELINES Sprinkler tank infill and sprinkler system suction/delivery lines. • Manufacturer: Submit proposals. - Product reference: Submit proposals. • Application: Frost protection. • Pipe material: Steel. • Tape: Self-regulating. • Electrical voltage: Submit proposals. • Accessories: Thermostat.

Y30 Mechanical thermal insulation Y30 Mechanical thermal insulation

Y30 Mechanical thermal insulation To be read with Preliminaries/ General conditions.


GENERAL 150 INSULATION FOR PIPELINES TO PROTECT AGAINST FREEZING Sprinkler system • Insulation materials: Mineral fibre pipe section. • Protection: PVC-U casing. • Specified conditions to BS 5422: 1. • Accessories to be insulated: Insulation for valves and flanges and Insulation at load bearing pipeline supports. PRODUCTS 330 MINERAL FIBRE PIPE SECTION INSULATIONGENERALLY • Standard: To BS 3958-4. • Manufacturer: Submit proposals. - Product reference: Submit proposals. • Thermal conductivity: Submit proposals. • Recycled content: Submit proposals. • Finish: Aluminium foil faced . 370 INSULATION THICKNESSES • Pipeline insulation thickness: Submit proposals. • Ductwork insulation thickness: N/a. 380 VAPOUR BARRIER • Permeance: To BS 3177. • Vapour permeance (maximum): - Cold water pipelines: 0.05 g/s·MN. - Chilled water pipelines: 0.015 g/s·MN. - Refrigeration pipelines: 0.010 g/s·MN. - Chilled air ductwork: 0.015 g/s·MN. 405 POLYISOBUTYLENE PROTECTION Sprinkler system • Manufacturer: Submit proposals. - Product reference: Submit proposals. • Colour: Submit proposals. 425 SHEET ALUMINIUM CASING PROTECTION Sprinkler system • Manufacturer: Submit proposals. - Product reference: Submit proposals. • Finish: Submit proposals. 480 INSULATION FOR VALVES AND FLANGES Sprinkler system • Insulation materials: Submit proposals. - Finish: To match pipelines finish. - Form: Removable and reusable preformed rigid covers. Y30 Mechanical thermal insulation

495 INSULATION AT LOADBEARING PIPELINE SUPPORTS • Hot pipelines up to 120°C: 300 mm length of high density phenolic foam. • Hot pipelines above120°C: 300 mm length of calcium silicate. • Cold pipelines: 300 mm length of high density phenolic foam.


EXECUTION 610 INSTALLATION GENERALLY • Timing: Insulate after installed system has been fully tested and joints proved sound. • Insulation: Do not enclose adjacent units together. • Clearance: Maintain between pipes. • Finish: Neatly finish joints, corners, edges and overlaps. 625 INSTALLATION OF FOIL FACED MINERAL FIBRE INSULATION ON PIPELINES • Joints: Close butt, seal with 50 mm wide class O tape on both longitudinal and circumferential joints. • At fittings: Mitre. Secure with tape. • Vapour seal: Tape exposed insulation membrane. Seal vapour barrier at pipe support with class O tape. 710 INSTALLATION OF POLYISOBUTYLENE (PIB) PROTECTION • Thickness (minimum): 0.8 mm. • Application: Wrap sheeting with 50 mm overlap. Solvent weld joints. • Finish: Secure with aluminium banding. 720 INSTALLATION OF SHEET ALUMINIUM PROTECTION • Application: Form sheet to fit circumference of insulation with 50 mm longitudinal and circumferential overlaps. Secure overlaps with self tapping screws or rivets. Seal joints with grey sealant. • Expansion: Make provision. 740 INSTALLATION AT VALVES AND FLANGES • Application: Do not obstruct removal of nuts and bolts, or operation of valves. 750 INSTALLATION AT LOADBEARING PIPELINES SUPPORTS • Application: Close butt to insulation. • Joints: Seal with 100 mm wide class 'O' foil tape. • Sleeve: Provide sheet metal protection sleeve. 755 INSTALLATION AT NON-LOADBEARING PIPELINES SUPPORTS • Insulation: Carry through pipe support. 760 INSULATION NOT CARRIED THROUGH PIPELINES SUPPORTS • Insulation at supports: Provide aluminium end caps. 800 INSTALLING VAPOUR BARRIERS • Integrity: Maintain throughout.

Y32 Mechanical plant and equipment identification Y32 Mechanical plant and equipment identification

Y32 Mechanical plant and equipment identification To be read with Preliminaries/ General conditions. PRODUCTS 310 PLANT AND EQUIPMENT IDENTIFICATION LABELS • Standard: To BS 1710. • Type: Laminated plastics plates. • Manufacturer: Submit proposals. - Product reference: Submit proposals. • Information: Purpose and reference number. 320 VALVE IDENTIFICATION LABELS • Standard: To BS 1710. • Type: Laminated plastics plates. • Manufacturer: Submit proposals. - Product reference: Submit proposals. • Information: Purpose and reference number. • Colours: Basic and safety colour identification of associated system. 330 VALVE CHARTS AND SCHEMATICS • Type: Plastic encapsulated.


EXECUTION 610 IDENTIFYING PIPEWORK • Standards: To BS 1710. • Identification type: Adhesive colour bands. • Application of basic identification colour: Coloured bands as BS 1710 clause 3.3. • Safety colour identification: On or next to the colour bands. • Information: Colour bands as BS 1710 appendix D. • Direction of flow: Indication arrow. 630 INSTALLING PLANT AND EQUIPMENT IDENTIFICATION • Fixing: Plug and screw to wall. • Location: On wall adjacent equipment. 640 INSTALLING VALVE IDENTIFICATION • Fixing: Secure with metal chain. 650 INSTALLING VALVE CHARTS AND SCHEMATICS • Fixing: Plug and screw to wall. • Location: Plant room.

Y50 Mechanical commissioning Y50 Mechanical commissioning

Y50 Mechanical commissioning To be read with Preliminaries/ General conditions. EXECUTION 610 COMMISSIONING PROGRAMME

• Generally: Submit before commissioning commences. - Notice (minimum): 2 weeks. • Commissioning manager: Submit details. 615 PERFORMANCE TESTING PROGRAMME • Generally: Submit before performance testing commences. - Notice (minimum): 2 weeks. • Performance testing manager: Submit details. COMPLETION 980A COMMISSIONING OF SPRINKLER SYSTEM • Commissioning: In accordance with BS 9251 • Notice (minimum): 1 week. 990A INSPECTION AND TEST RECORDS • Records for water systems: In accordance with BSRIA AG 2/89 • Record sheets: Submit. - Number of copies: 3. 995A DEMONSTRATIONS • Running of plant: Run, maintain and supervise the installations under normal working conditions. • Instruction: Instruct and demonstrate the purpose, function and operation of the installations.

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