International Electrotechnical Commission
Glossary

ENenvironmental test 
test in which a product is exposed to simulated environmental conditions such as temperature, wind, rain, snow, hail or humidity

NOTE During an environmental test, simulated environmental conditions are frequently more extreme than normal environmental conditions, as a means of accelerating any degradation processes

The environmental tests currently in use for PV modules include:

a) damp heat test

environmental test intended to determine the ability of a PV module to withstand the effects of long-term penetration of humidity

b) hail test

environmental test intended to verify that a PV module is capable of withstanding the impact of hailstones

c) hot-spot endurance test

environmental test intended to determine the ability of a PV module to withstand hot-spot heating effects, e.g., solder melting or deterioration of the encapsulation

d) humidity freeze test

environmental test intended to determine the ability of a PV module to withstand the effects of high temperature and humidity followed by sub-zero temperature

e) impact test

environmental test intended to assess the susceptibility of a PV module to accidental impact damage

f) insulation test

environmental test intended to determine whether or not a PV module is sufficiently well insulated between electric current carrying parts and the frame

g) mechanical load test

environmental test intended to determine the ability of a PV module to withstand wind, snow, static, or ice loads

h) outdoor exposure test

environmental test intended to make a preliminary assessment of the ability of a PV module to withstand exposure to outdoor conditions and to reveal any synergistic degradation effects that may not be detected by laboratory tests

i) robustness of terminations test

environmental test intended to determine that the terminations and the attachment of the termination to the body of a PV module will withstand such stresses as are likely to be applied during normal assembly or handling operations

j) salt mist test

environmental test intended to determine the resistance of a PV module to corrosion from salt mist in order to evaluate the compatibility of materials and the quality and uniformity of protective coatings

k) thermal cycling test

environmental test intended to determine the ability of a PV module to withstand thermal mismatch, fatigue and other stresses caused by repeated changes of temperature

l) twist test

environmental test intended to detect defects that might arise in a PV module when mounted on an imperfect structure

m) UV test

environmental test intended to determine the ability of a PV module to withstand exposure to ultraviolet radiation (UV)

n) wet leakage current test

environmental test intended to evaluate the insulation of a PV module under wet operating conditions and verify that moisture from rain, fog, dew or melted snow does not enter the active parts of the module circuitry, where it might cause corrosion, ground leakage, or a safety hazard


TC/SC:82Terms     Info     Publications
Published in:IEC 61836, ed. 2.0 (2007-12) Terms     Info
Reference number:3.6.15

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