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TASK AREA CONCEPTS New task-area related lighting con- cepts in accordance with EN 12464 for higher quality, greater flexibility and impro- ved efficiency.

TASK AREA CONCEPTS - Zumtobel · 2010-04-01 · TASK AREA concepts take the following into account: • New models of building planning and room design • The use of new screen technologies

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TASK AREACONCEPTS

New task-area related lighting con-cepts in accordancewith EN 12464 forhigher quality, greaterflexibility and impro-ved efficiency.

Office work is uncommonly

varied. Communicating with

your team, advising customers,

reading documents, writing

bids on your PC or by hand on

paper – each of these activities

places different requirements

on room lighting. Trend-setting

lighting solutions focus on the

diversity of activities and the

corresponding specific visual

tasks. Criteria such as reducing

glare and reflections, shadow,

detail and brightness distribution

play just as important a role as

fostering a lively atmosphere

and cutting operating and main-

tenance costs. A wide variety

of needs can be encountered in

a single building or even on a

single storey. Concepts that are

geared towards needs focus light

on individual areas and, hence,

particular visual tasks. The TASK

AREA concept goes one step

further. It exploits the freedom

given within the latest lighting

design recommendations in

such a way that vertically illumi-

nated planes are considered in

addition to traditionally used

horizontal ones, while also inclu-

ding aspects of dynamism, utili-

sing intelligent lighting controls.

According to Zumtobel Staff’s

TASK AREA concept, the room,

luminaire and lighting manage-

ment system are seen as an

integrated whole. If buildings are

planned in a holistic way and

planning to requirements is

carried out in detail, there is

every likelihood that this will

result in lighting installations

related to task areas and their

associated visual tasks, also

taking factors such as con-

venience, flexibility, economic

efficiency and creative design

into account.

• More appropriate lighting quality• Reduced energy consumption• Scope for aesthetically pleasing

environmental design

The emphasis using TASK AREA concepts:

L I G H T F O C U S E D O N V I S U A L TA S K S 3

“Trend-setting lighting technology

must aim to create optimum

working conditions on the one

hand and visual experiences

on the other hand in order to

make staff members feel good

in their working environment.”

The “Licht und Mensch” [“Light andPeople”] study by the German Insti-tute for Applied Lighting Engineering(Deutsches Institut für AngewandteLichttechnik [DIAL]) confirms theconsiderable potential offered bymultidimensional lighting to improveworking and living conditions.

More convenience

The focusing of light provides

creative and financial freedom

to make investments in conve-

nience and dynamism. The right

light for specific visual tasks is

but one of the many aspects

involved in optimum lighting

solutions. Vertical lighting and

accents in the room enhance

users’ sense of well-being.

Setting goals,meeting requirements

Designing a lighting system

according to the areas in which

visual tasks are performed

opens up additional flexibility.

The more precisely a TASK

AREA can be defined, the

more accurately the amount

and quality of the lighting

can be adjusted. This also

provides greater flexibility for

implementing outstanding

lighting solutions.

More quality

TASK AREA concepts are based

on specific lighting tasks. The

right quantity of light, in the

optimum quality, is provided at

the visual task area. Uniformity,

reduction of glare and reflec-

tions, contrast rendition and

shadow detail are adjusted to

the respective task. The lighting

is not matched just to the room,

but to what users need.

Room-related lighting concepts arebased neither on task areas nor ondifferent visual tasks. The lighting isdesigned for the most demandingtask to be performed in the room. The position of the workstation is not defined; an accordingly highlighting quality is provided for theentire room.

120

100

80

60

40

20

0

Proportion of task area in total area in %

Ene

rgy

cons

ump

tion

in %

100 90 80 70 60 50

Optimum energy efficiency

There is huge potential for opti-

misation, especially in spacious

buildings. The more the lighting

is focused on the TASK AREA,

the more significantly the mean

illuminance level, and thus

energy costs for the visual task

areas, are reduced.

Focusing of light opens up new hori-zons. It provides freedom to lightsurrounding areas to achieve diver-sity. Vertically lit surfaces make aroom more open and welcoming,dynamic changes in colour enhancevisual quality.

TASK AREA concepts focus thelighting onto individual visual taskareas. Precise definition of visualtasks enables accurate realisation oflighting quality according to specific,locally restricted requirements.

TA S K A R E A C O N C E P T S 5

The perfect conceptfor modern office landscapes

TASK AREA concepts are more

than just a response to current

trends. They provide evidence

of these trends and offer inno-

vative ways of implementation.

Modular axial flexibility

The wish to provide a property

with fittings suitable for both

current and future requirements

has resulted in the trend towards

axis-based room design. Accor-

ding to a Gallup poll, 75 % of

businesses have responded to

changes in work processes by

reorganising the layout of their

office premises in recent years.

Demand for modularity in spe-

culative properties is even more

striking. Developers must expect

tenants to change continuously

and must rely on variable room

fittings and layouts. Modern

systems enable and increase

axial flexibility.

TASK AREA concepts take thefollowing into account:• New models of building planning

and room design• The use of new screen technologies• Lifecycle management and optimum

ratio of operating costs to invest-ment costs

• People’s desire to deal responsiblywith energy issues and personnel

All-round glare control for

sloping TFT display screens

New developments in telecom-

munications call for progressive

lighting concepts. Increasing

numbers of laptops and orga-

nisers with steeply inclined dis-

plays are now in use and a

larger number of workstations

than ever must be ready to meet

these special requirements.

In particular, the arrangement

of luminaires directly above

workstations, dependent on

room axis orientation, makes it

necessary to reduce luminance

levels at steep angles in order

to minimise annoying reflections

on the screen.

Cutting operating costs

Over a building’s entire lifecycle,

the operating costs to the ten-

nant are anything up to three

times the original amount in-

vested. This, in itself, is suffi-

cient reason to make sure, from

the outset, that operating costs

are given due consideration.

According to analyses carried

out by the Hypo Vereinsbank in

Austria, 15 to 20 % of the total

costs of a tennant are spent on

facility management. These

costs include the operation and

maintenance of lighting systems.

In addition, there will be increa-

sing pressure to categorize buil-

dings according to their energy

use. By making it possible to

concentrate on actual visual

tasks and by providing mainte-

nance-friendly luminaire systems,

TASK AREA concepts make it

possible to keep these costs

low. Efficiency can be further

boosted by the use of intelligent

lighting controls.

Exploiting the design freedom

afforded by EN 12464

The TASK AREA concept is

backed up by the recently pub-

lished EN 12464 standard. This

standard specifies quality crite-

ria for the respective visual task

area, thereby allowing rooms to

be designed and fitted with

equipment in a differentiated

manner. The revised European

standard supports the TASK

AREA concept and provides

approaches to lighting design

that are more in line with the

real needs of the individuals

working in those spaces.

T R E N D - S E T T I N G L I G H T 7

Individual TASK AREA

Selective, task-oriented lighting

of individual workstations is the

most original type of task-area

related design. A prerequisite is

precise definition of the position

and size of the visual task areas.

Detailed assignment provides for

maximum focusing of quantity

and quality of light.

Once individual workstations

have been defined as TASK

AREAs, the lighting scene can

be adjusted completely individu-

ally. The lighting is matched to

the individual requirements of

office users.

Surrounding area

Not only the visual task but

also requirements in terms of

convenience and spatial effect –

in accordance with people’s

needs – determine the lighting

technology deployed in the

surrounding area. There are

almost no limits on design free-

dom. Wallwashers, spots, light

walls, uplights and downlights

provide a wealth of options for

individual lighting solutions for

corridors and break-out areas.

TASK AREA strip

Flexibility is increased by extend-

ing the TASK AREA to comprise

several workstations. Desks can

be rearranged within a TASK

AREA strip and can subsequently

be regrouped or sub-divided.

Combined with modern lighting

control systems, no major in-

stallation work is needed to re-

address luminaires, in order to

adapt to changes in the office

structure. A building’s flexibility

and modular character is de-

fined by its axes. Axis-based

design is exploited by TASK

AREA concepts which focus on

visual tasks for lighting design.

Despite this, they do not reduce

options for change within the

axes of the room.

TASK AREA room conceptsfrom individual workstations to modular structures

TASK AREA strip: several workstations are groupedtogether into a TASK AREA strip to achieve opti-mum balance between modular axial flexibility andfocusing.

Individual TASK AREA:if the area and natureof the visual task havebeen defined exactly,the potential for con-centration will be fullyutilised.

R O O M A X I S - B A S E D D E S I G N 9

Tailor-made luminaire conceptsfor task-area related lighting design

Cluster luminaires

• Maximum focus

• Fully flexible arrangement of

workstations thanks to micro-

pyramidal optic (MPO) with

all-round glare control

• Luminaires are closed and

therefore maintenance-friendly

• High light output, low energy

consumption

• Architecturally unobtrusive

design

Free-standingluminaires

• Flexible positioning in the space

• Individual lighting with maxi-

mum flexibility for users

• Fully flexible arrangement of

workstations thanks to micro-

pyramidal optic (MPO) with

all-round glare control

• Maintenance-friendly

• Architectural design alternative

to ceiling luminaires

Task-area related IDpendant luminaires

• Positioning based on room

axes, at right angles to the

fenestration

• Photometric characteristics

allow arrangement directly

above workstations

• High light output ratio, low

energy consumption

• Harmonious balance of room

illumination and focusing on

TASK AREA

Light sail

• One lighting unit for up to

three building axes

• Luminaires positioned directly

above task area

• Possibility of “on demand”

installation and integration into

lighting management system

• Integration of acoustic elements

• Integration of air-conditioning

units

TA S K - A R E A L U M I N A I R E S 11

Intelligent luminairesneed-driven lighting management

Straightforward instal-lation, flexible use of TASKAREA thanks to LUXMATE

TASK AREA concepts focus on

individual task areas. Flexibility

can be retained and both TASK

AREAs and surrounding areas

can be modified with the help of

DALI.

Deploying DALI technology mini-

mises effort in terms of design

and installation. In contrast to

conventional installations, no

switched phase conductors are

needed for each luminaire in

the case of DALI-addressable

luminaires. Predefined lighting

levels for TASK AREAs, shelf

surfaces and surrounding areas

also speed up commissioning

significantly.

This flexibility is evident through-

out the entire lifecycle of the

system. Using LUXMATE Flexis,

a product in the new LUXMATE

LITENET product family, lumi-

naires located anywhere can be

grouped together into TASK

AREAs or room areas, without

any intervention in the installa-

tion.

This system boasts the same

functionality as conventional

DALI lighting control but is

significantly more affordable.

Whereas in the past only

dimmable luminaires could be

managed individually, now

switchable lighting systems, too,

can be adapted quickly and fle-

xibly in response to changed

requirements or new tenants.

Application benefits:

• Change of TASK AREAs in the

space

• Adaptation of TASK AREAs to

changed room sizes according

to building axes

• Re-organisation at the click of

a mouse

• Graphical user interface for

easy use of software

• Facility to settle accounts re-

lating to specific customers

• Simultaneous blinds manage-

ment, if required

Before: conventionalinstallation using busrelay involved consider-able effort in terms ofdesign and installation.

After: DALI-addressableluminaires significantlyreduce effort in terms ofdesign and installation –further benefits includelower fire loads andswitching loads.

The first steps towardsan innovative lightingsolution: definition ofambient areas andassignment of lumi-naires to several TASKAREAs.

Migration takes placewithout any interventionin the installation. UsingLUXMATE Flexis, aproduct from the newLUXMATE LITENETproduct family, roomsand TASK AREAs canbe adapted at the clickof a mouse.

Luminaire switchable

Luminaire addressable “Dimming on demand”

Luminaire dimmable

Dimming licence

Co

st c

om

par

iso

n

Maintenance Control:constant illuminance cutsenergy consumption

Automatic illuminance control

is also an element within the

task area concept. International

standards specify levels of illu-

mination which must be maintai-

ned. Since the light produced

by a luminaire varies over time

(due to build up of dirt on reflec-

tive surfaces and reduction of

lamp output), higher light levels

need to be installed initially to

achieve the stipulated levels

later on. However, it makes bad

economic sens to fully utilise

this excess capacity.

LUXMATE Flexis with Mainte-

nance Control precisely adjusts

the lighting level to the bare

minimum required. The system

takes account of the mainte-

nance factor established by the

Dimming on demand:addressable meansdimmable

Using TASK AREA concepts,

the quality of lighting can be

optimally matched to users’

needs. One essential criterion

is individual dimmability of the

luminaires – this enhances the

value of a property. However,

there are various reasons for

not deploying this function from

the outset: lower investment

costs during construction, for

instance. Addressable luminaires

with a “dimming on demand”

function can easily be upgraded

to become dimmable luminaires

without intervening in the instal-

lation. The upgrade can be

acquired in the form of a dimming

licence thereby allows additional

costs to be billed only to those

tennants who wish to utilise the

additional function.

Longer maintenanceintervals thanks tohigher illuminancelevels

Maintenance intervalscan be prolonged byover-dimensioning thesystem. Up until now,increased energy con-sumption made it un-advisable to do this.LUXMATE Flexis withMaintenance Controlkeeps the amount oflight constant at therequired level and sur-plus capacity is auto-matically dimmed.Maintenance interval

Energy savings by dimming surplus capacity

Illuminance in accordance with age and soiling of influencefactors (lamps, luminaires, room)

Illuminance maintenance value

Mai

nten

ance

Mai

nten

ance

Mai

nten

ance

Illum

inan

ce

designer, thereby taking into

account the continuous decrease

in illuminance caused by ageing

of lamps and luminaires be-

coming dirty. Lamp operation

is determined on the basis of

the maintenance factor and the

optimum time for relamping is

also indicated. This gives the

perfect balance between in-

vestment and operating costs.

Running costs, over the entire

lifecycle of a building, can

amount to up to three times the

L I G H T I N G A N D R O O M M A N A G E M E N T 13

original investment cost.

The cost breakdowns on the

following page provide more

detailed information about the

various systems.

12

3

4

5

Photometric criteria

Flexibility

Employee comfort

Technology/Architecture

Cost effectiveness (costs/maintenance)

Five scenarios with their own individual strengthsGuidance on how to select luminaires and lighting management system

• Extremely energy-efficient in terms of systemeconomy and illumination of work plane

• Optimised for individual standardised parameters• Minimum cost with corresponding cuts in quality

criteria that cannot be quantified in terms of cost

• A favourite for individual TASK AREA luminaireswhere the area of the visual task does not change

• An “all-rounder” that exploits potential benefitswith regard to graded illuminance levels betweensurrounding area and possible TASK AREA to alarge extent

• Number one in terms of technical operating coststhanks to extremely long maintenance intervalsand “zonal” utilisation of installed load

• Individual TASK AREA luminaire offering maximumuser flexibility thanks to direct and hence variablepositioning in the work place

• Individual light ensures sense of well-being andcorrespondingly high user acceptance

• Free-standing luminaires are regarded as “move-able furniture”: tennant can invest in luminairesindependently of developer’s fit-out

• One of the favourite TASK AREA strip conceptsthat are geared towards the axes of the building

• All-rounder with very high performance potentialwhen compared against all assessment criteria

• Very high potential benefit thanks to automaticdimming of initially over-dimensioned systems

• One of the favourite TASK AREA strip conceptsthat are geared towards the axes of the building

• Best functionality in terms of building services(integrated lighting, air conditioning and acoustics)with corresponding potential cost benefits interms of building construction* (assessment didnot take these into consideration)

• Very high potential benefit thanks to automaticdimming of over-dimensioned systems

Summary for a 15-year analysis period• Operating and maintenance costs are a crucial

factor and, in most cases, actually exceedinvestment costs.

• Every lighting concept has its own performanceprofile that may result in preference being givento it, depending on project-specific priorities.

• Factors such as convenience, flexibility andinnovation are difficult to quantify. These criteriaare overlooked if a system is assessed exclusivelyin terms of investment costs.

Basis of calculationTASK AREA 500 lxSurrounding area 300 lx

• Width, room axis 1.6 m• Total room width 12.8 m (8 room axes)• Room depth 4.8 or 5.6 m• 6 workstations• System service life 15 years• Operating hours 2000/year

• Cost of contractor € 40/hr.• Cost of cleaning luminaire € 4 to 8• Cost of cleaning room (painter) € 5/m2

• Cost of electricity € 0.0575/kWh, standing charge tariff € 57/kW

Comparison of dimmable concepts• Photometric criteria: uniformity,

control of direct glare and reflec-tions, utilisation factors

• Flexibility: layout and alignment ofworkstations, axial flexibility

• Visual comfort for employees:impression of space, balance,shadow detail

• Cost-effectiveness: investment,energy consumption, maintenancecycle

• Technology/architecture: technolo-gical and design progress, buildingintegration, functionality, ACTIVELIGHT capability

Room-related lighting concept with MIREL louvre luminaires FEC 2/35 W T16

Individual TASK AREA with LIGHT FIELDS cluster luminaires 4 x or 6 x 4/14 W

Individual TASK AREA with LIGHT FIELDS free-standing luminaire 3/80 W TC-L

Strip TASK AREA with FREELINE ID louvre luminaires 2 x 2/24 W + 1/80 W T16

Strip TASK AREA with light sail LDS-L 2 + 4/54 W T16

Arrangement of luminaires Performance profile Performance analysis

12

3

4

5

Photometric criteria

Flexibility

Employee comfort

Technology/Architecture

Cost effectiveness (costs/maintenance)

12

3

4

5

Photometric criteria

Flexibility

Employee comfort

Technology/Architecture

Cost effectiveness (costs/maintenance)

12

3

4

5

Photometric criteria

Flexibility

Employee comfort

Technology/Architecture

Cost effectiveness (costs/maintenance)

12

3

4

5

Photometric criteria

Flexibility

Employee comfort

Technology/Architecture

* Cost effectiveness (costs/maintenance)

Saving energyExtra investment in Maintenance Control with automaticcompensation for over-dimensioning and daylight-dependentlighting control pay for themselves through energy savingsalone. Aspects such as quality of user interaction, room-zonemanagement, additional monitoring functions and much more(see pages 12/13) provide added value.

1100

Em [lx]

1000

900

800

700

600

500

400

Years 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Tota

l mai

nten

ance

Lum

inai

re c

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ing

Lum

inai

re c

lean

ing

Lum

inai

re c

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Lum

inai

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lean

ing

Lum

inai

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Investment

Grand total

Energy & maintenance

Total cost

Extra investment cost*

Potential energy savings*

* for Maintenance Control and daylight-dependent control

% 50 10025 75-50-75 -25 125 175 200150

Tota

l mai

nten

ance1100

Em [lx]

1000

900

800

700

600

500

400

Years 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Investment

Grand total

Energy & maintenance

Total cost

Extra investment cost*

Potential energy savings*

* for Maintenance Control and daylight-dependent control

% 50 10025 75-50-75 -25 125 175 200150

1100

Em [lx]

1000

900

800

700

600

500

400

Years 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Tota

l mai

nten

ance

Tota

l mai

nten

ance

Lum

inai

re c

lean

ing

Lum

inai

re c

lean

ing

Tota

l mai

nten

ance

Lum

inai

re c

lean

ing

Lum

inai

re c

lean

ing

% 50 10025 75-50-75 -25 125 175 200150

Investment

Grand total

Energy & maintenance

Total cost

Extra investment cost*

Potential energy savings*

* for Maintenance Control and daylight-dependent control

1100

Em [lx]

1000

900

800

700

600

500

400

Years 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Lum

inai

re c

lean

ing

Tota

l mai

nten

ance

Lum

inai

re c

lean

ing

% 50 10025 75-50-75 -25 125 175 200150

Investment

Grand total

Energy & maintenance

Total cost

Extra investment cost*

Potential energy savings*

* for Maintenance Control and daylight-dependent control

1100

Em [lx]

1000

900

800

700

600

500

400

Years 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Tota

l mai

nten

ance

Lum

inai

re c

lean

ing

Lum

inai

re c

lean

ing

Tota

l mai

nten

ance

Lum

inai

re c

lean

ing

Lum

inai

re c

lean

ing

Investment

Grand total

Energy & maintenance

Total cost

Extra investment cost*

Potential energy savings*

* for Maintenance Control and daylight-dependent control

% 50 10025 75-50-75 -25 125 175 200150

Considerable reduction in operating costs thanks to longermaintenance intervals• Over-dimensioning a lighting installation ensures that the main-

tenance illuminance levels required in standards are met duringactual operation, not just when the system is new. The extentof over-dimensioning has a decisive influence on the durationof the maintenance interval. LUXMATE Flexis with MaintenanceControl compensates for over-dimensioning, thereby reducingenergy consumption. LUXMATE daylight-dependent controlprovides scope for further potential energy savings.

• The aim is to strike the optimum balance between luminairesfitted, number of luminaires and photometric characteristics inorder to minimise the costs of the maintenance work required.

Total maintenance: cleaning of luminaires and room surfaces, replacement of lightsources (based on IEC Publication 97)

Maintenance intervals Cost profile

LIGHT FIELDS clusterLIGHT FIELDS free-standing luminairesFREELINELDS light sailMIREL FEC45%

53%57%60%45%

Energy savings of up to 60 % for all luminaire types are one good reason to investin the LUXMATE lighting management system.

C O M PA R I S O N O F S C E N A R I O S 15

Standards and quality criterialighting design fundamentals

The EN 12464 standard is

changing old design habits. It

allows designers greater freedom

and, above all, dictates that

lighting must be delivered in the

location where people have to

perform their visual tasks. At

the same time, it specifies com-

prehensive quality criteria for

a good lighting solution.

EN 12464 introduces the con-

cept of the “visual task area”

where photometric quality

criteria must be met. This area

is any surface on which visual

tasks are performed and can be

horizontal, vertical or inclined.

A maintenance illuminance of

0.7 and uniformity (the mini-

mum-to-mean illuminance ratio

in the area of the visual task)

must be adhered to.

Maintenance factor,maintenance value andmaintenance intervals

Every lighting installation ages

and illuminance drops off due to

a decrease in the luminous flux

of lamps and the soiling of light

sources, luminaires and the

room. The designer must spe-

cify the particular maintenance

measures and intervals that

must be adhered to in order

to preserve the maintenance

illuminance. This results in a

maintenance factor that ensures

the maintenance illuminance

throughout the duration of the

maintenance interval. If detailed

information is not available,

Zumtobel Staff recommends a

reference maintenance factor of

0.67 inspired by BGI 856 “Office

Lighting”.

The following maintenance illuminances (excerpt from EN 12464-1 “Light and lighting. Lighting of work places Part 1: Indoor work places”) apply foressential office visual tasks:

Nature of room, visual task or activity Em UGRL Ra

Filing, copying, circulation areas etc. 300 19 80Writing, reading, data processing 500 19 80Technical drawing 750 16 80CAD workstations 500 19 80Conference and discussion rooms 500 19 80Reception area 300 22 80Archives 200 25 80

Em = Maintenance illuminanceUGRL = Unified glare ratingRa = Lower limit for colour rendition index

This means that the new stand-

ard differs from the old approach

in which the design objective

was to achieve average illumi-

nance throughout the room. In

the surrounding area where visual

tasks are performed less often,

illuminance can drop down to

300 lux. In offices, areas where

visual tasks are performed

essentially include the desk and

the adjacent circulation area.

Zumtobel Staff recommends

compliance with quality criteria

within this task area (see also

BGI 856 “Office Lighting”, an

informative brochure published

by organisations in charge of

accident insurance and lighting

companies in Germany, Austria

and Switzerland).

Additional quality criteria:

• Well-balanced luminance

distribution in the visual field

ensures visual performance

and visual comfort. This

means that great importance

is attached to visible vertical

surfaces and how they are lit.

• Glare control at workstations

must never exceed the UGR

limit of 19 in order to prevent

annoyance due to direct glare

caused by luminaires.

• At visual display terminals,

luminance levels on surfaces

that could be reflected on the

screen must not be too high.

For luminaires, a mean lumi-

nance of 1000 cd/m2 must not

be exceeded above 65° to the

downward vertical.

Time

Illuminance in accordance with age and soiling of influence factors (lamps, luminaires, room)

Required maintenance illuminance

Lum

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om

cle

anin

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d r

elam

pin

g

Recommended minimum values for lighting areasin accordance with the BGI 856 interpretation of EN 12464

Average luminances of luminaires and Reduction of reflected glare areas that are reflected on screen

Screens with positive display ≤ 1000 cd/m2

Screens with negative display, quality class I ≤ 1000 cd/m2

(high-quality anti-reflection coating, verified by test certificate)

Screens with negative display ≤ 200 cd/m2

quality classes II and III

Visual display terminal lighting

Nature of room and Maintenance illuminance Colour rendition Lighting concept visual task Horizontal Vertical index Ra Comments

Office rooms and office-like roomsScreen-based work 500 80 g1=0,6 Meetings 500 80 g1=0,6 Cupboard and shelving surfaces 175 80 g1=0,5Surrounding area 300 80 g1=0,5

Individual visual display terminalsScreen-based work 500 g1=0,6

TASK AREA concept

Office rooms and office-like roomsEntire room, excluding 500 80 g1=0,6 an edge strip 0.5 m wide Cupboard and shelving surfaces 175 80 g1=0,5

Room-related lighting

g1 = uniformity of illuminance Emin / E

TA S K A R E A F U N D A M E N TA L S 17

Throughout the world, Zumtobel Staff

is the competent reliable partner for

innovative lighting solutions in all areas

of application of professional interior

lighting:

Industry and Engineering

Sport and Leisure

Transit areas and Car parks

Offices and Education

Presentation and Retail

Hotels and Catering

Art and Culture

Health & Care

Orientation and Safety

Active Light

With production plants in Austria,

Germany, Australia and the USA, and

sales organisations in all major Euro-

pean markets as well as commercial

agencies in most regions of the world,

Zumtobel Staff is one of the biggest

international enterprises in the lighting

sector.

As a leader in innovation, we guaran-

tee our customers global competence

in lighting consulting and design

assistance, superior product quality

and future-proof technologies – from

individual luminaires to electronic

lighting management systems.

Corporate goal: We want to use light

to create worlds of experience, make

work easier and improve communica-

tions and safety while remaining fully

aware of our responsibility to the envi-

ronment.

P R E S E N T A T I O NA N D R E T A I L

A R T A N D C U LT U R E

H O T E L S A N D C A T E R I N G

S P O R T A N D L E I S U R E

H E A LT H & C A R E

T R A N S I T A R E A SA N D C A R P A R K S

O F F I C E S A N D E D U C AT I O N

I N D U S T R Y A N D E N G I N E E R I N G

United Kingdom

Zumtobel Staff Lighting Ltd.

Unit 4 - The Argent Centre,

Pump Lane

Hayes/Middlesex UB3 3BL

Tel. +44/(0)20 8589 1800

Fax +44/(0)20 8756 4800

Email: [email protected]

www.zumtobelstaff.co.uk

USA and Canada

Zumtobel Staff Lighting

3300 Route 9W

Highland, New York 1258-2630

Tel. +1/(0)845/691 62 62

Fax +1/(0)845/691 62 89

www.zumtobelstaff.us

www.zumtobelstaff.ca

Australia and New Zealand

Zumtobel Staff (Australia) Pty. Ltd.

2 Wella Way

Somersby, NSW 2250

Tel. +61/(2)4340 3200

Fax +61/(2)4340 2108

Email: [email protected]

www.zumtobelstaff.com.au

Norway

Zumtobel Staff Belysning AS

Industriveien 11

1481 Hagan

Tel: +47/(0)670/62230

Fax: +47/(0)670/62269

Email: [email protected]

Art.-No. 04 797 516-UK 10/04 © Zumtobel StaffTechnical data was correct at time of going to press. We reserve the right to make technical changes without notice. Please contact your local sales office for further information. Printed on environmentally-friendly chlorine-free paper. Printed on Consort Royal.

Sweden

Zumtobel Staff AB

Norr Mälarstrand 8

11220 Stockholm

Tel: +46/(0)8/6511480

Fax: +46/(0)8/265605

E-mail: [email protected]

www.zumtobelstaff.se

Head offices

Zumtobel Staff GmbH

Schweizer Strasse 30

Postfach 72

A-6851 Dornbirn, AUSTRIA

Tel. +43/(0)5572/390-0

Fax +43/(0)5572/22 826

Zumtobel Staff GmbH & Co. KG

Grevenmarschstr. 74-78

D-32657 Lemgo, GERMANY

Tel. +49/(0)5261/2 12-0

Fax +49/(0)5261/2 12-7777

www.zumtobelstaff.de

www.zumtobelstaff.com

Track and spots

Modular lighting systems

Down-/uplights

Recessed luminaires

Surface-mounted and pendant luminaires

Wallwashers

LED, task, wall and uplights

Continuous row and batten luminaires

High-bay luminaires

Luminaires with extra protection

Lighting Controls

Emergency lighting

Medical supply systems

www.zumtobelstaff.com/taskarea

TASK AREACONCEPTS

New task-area related lighting con-cepts in accordancewith EN 12464 forhigher quality, greaterflexibility and impro-ved efficiency.