Dr. Francesco Groppi (CESI Middle East) Chairman of · PDF file · 2017-05-17Dr. Francesco Groppi (CESI Middle East) Chairman of CENELEC/TC82 ... Components / equipment PV modules

When Standards meet experience and increase

the value of PV

Dr. Francesco Groppi (CESI Middle East)Chairman of CENELEC/TC82

© CEN-CENELEC 2017 - 2

Dr. Francesco Groppi

GCC Solar Photovoltaic Testing Centres Network (Dubai 2017-05-15 and 16)

When Standards meet experience and increase the value of PV

About CENELEC

CENELEC is the European Committee for Electrotechnical Standardization and is responsible for standardization in the electrotechnical engineering field

CENELEC creates market access also adopting international standards wherever possible, through its close collaboration with the International Electrotechnical Commission (IEC)

At the beginning of 2017, CENELEC membership encompassed 34 countries and 12 affiliates

More than 300 technical bodies (TC, SC, BTTF) work on the elaboration of normative documents





PV Life-cycle and standards

Design

• IEC 62548

• IEC 62738

• EN 50583-1

• EN 50583-2

Commissioning

• IEC 62446-1

• IEC 61724-1

• IEC 61724-2

• IEC 61724-3

O&M

• IEC 62446-2

• IEC TS 62446-3

• IEC 61724-2

• IEC 61724-3

• PV arrays –

Design

requirements

• ground-mounted

PV power plants

• BIPV modules

• BIPV systems

• Documentation,

commissioning

tests and

inspection

• Monitoring

• Capacity

evaluation

• Energy evaluation

• Maintenance of PV systems

• Outdoor infrared thermography of

PV

• Capacity evaluation

• Energy evaluation





CERTIFICATIONS

Components / equipment

PV modulesIEC 61215-1/5IEC 61730-1/2…InvertersIEC 62109-1/2IEC 61000-X-XCombiner boxesIEC 61439-2 (next)CablesEN 50618Others…

Manufacturing

ISO 9001IEC TS 62941

Installation / O&M

ISO 9001IEC TS 63049

Terrestrial photovoltaic

(PV) modules - Guideline

for increased confidence

in PV module design

qualification and type

approval

Terrestrial photovoltaic

(PV) systems - Guideline

for increased confidence

in PV system installation





EN 50583-1/2 - BIPV





EN 50583-1/2 - BIPV

Additional requirements for BIPV systems (from A to E):1. Mechanical resistance and

stability2. Safety in case of fire3. Hygiene, health and the

environment4. Safety and accessibility in

use5. Protection against Noise6. Energy economy and heat

retention7. Sustainable use of natural

resources





PV external fire exposure

Since 2014 CENELEC TC82 is developing test methods for the assessment of external fire exposure to roofs in combination with photovoltaic (PV) arrays

In 2013 the UL 1713 was integrated with the Par. 31.2 System Fire Class Rating of module or panel with mounting systems in combination with roof coverings

In 2016 CENELEC issued the CLC/TR 50670 External fire exposure to roofs in combination with photovoltaic (PV) arrays - Test method(s)

There is a need for a new European standard compliant to:CEN/TS 1187, Test methods for external fire exposure to roofsEN 13501-5, Fire classification of construction products and building elements - Part 5: Classification using data from external fire exposure to roofs tests





PV external fire exposure

CLC/TR 50670 provides test methods for the assessment of external fire exposure to roofs in combination with photovoltaic (PV) arrays which characterize potential impacts of PV arrays to an existing fire rating of roofs from an external fire exposure.The performance of roofs without PV to external fire exposure is defined in CEN/TS 1187.

The test methods of CLC/TR 50670 are only applicable to roof added installations. Building integrated PV is not covered by this standard.

The test method refers to PV modules as test specimens without a specific mounting system as well as combinations of PV modules with particular mounting systems on tilted roofs and flat roofs.





Test methods of CLC/TR 50670

Placement of source of ignition

Top of the PV module Between the PV module and pitched-roofs

Between the PV module and flat roofs

15 kW gas

burner

Time = 10 min





Example of test for a PVC roof

Ref: www.currenta.com





Example of test for a bitumen roof

Ref: www.currenta.com





Lessons learned from fire tests

• In the tests with the PVC roof, the burning area was limited to the vicinity of the ignition source (no self-propagating fire)

• In tests with the bitumen roof, a fully-developed fire occurred which involved both the roof and the PV module and had to be extinguished for safety reasons. The roof, in combination with a PV module, failed to meet its requirements

• The test results clearly show that the type of roof, especially the roof covering material, significantly affects the fire performance of the PV modules





CONCLUSIONS

• Nowadays international standards IEC/CLC cover both the PV life-cycleand certification for most applications

• CENELEC collects experiences in BAPV, BIPV and risk prevention in order to increase the value of PV by means of standardization

• PV fire prevention is now addressed in laws and rules issued in several Countries and needs a standardization based on specific test procedures





Thank you for your attention

[email protected]

Documents

Dr. Francesco Groppi (CESI Middle East) Chairman of · PDF file · 2017-05-17Dr. Francesco Groppi (CESI Middle East) Chairman of CENELEC/TC82 ... Components / equipment PV modules