Full Description

1.1These test methods cover procedures for determining the ability of photovoltaic modules to withstand the mechanical loads, stresses and deflections used to simulate, on an accelerated basis, high wind conditions, heavy snow and ice accumulation, and non-planar installation effects.

1.1.1A static load test to 2400 Pa is used to simulate wind loads on both module surfaces.

1.1.2A static load test to 5400 Pa is used to simulate heavy snow and ice accumulation on the module front surface.

1.1.3A twist test is used to simulate the non-planar mounting of a photovoltaic module by subjecting it to a twist angle of 1.2.

1.1.4A cyclic load test of 10000 cycles duration and peak loading to 1440 Pa is used to simulate dynamic wind or other flexural loading. Such loading might occur during shipment or after installation at a particular location.

1.2These test methods define photovoltaic test specimens and mounting methods, and specify parameters that must be recorded and reported.

1.3Any individual mechanical test may be performed singly, or may be combined into a test sequence with other mechanical or nonmechanical tests, or both. Certain preconditioning test methods such as annealing or light soaking may also be necessary or desirable as a part of such a sequence. However, the determination of such test sequencing and preconditioning is beyond the scope of these test methods.

1.4These test methods do not establish pass or fail levels. The determination of acceptable or unacceptable results is beyond the scope of these test methods.

1.5These test methods do not apply to concentrator modules.

1.6The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.7The following precautionary caveat pertains only to the hazards portion, Section 6, and the warning statements, 7.5.3.2 and 7.6.3.2, of these test methods.This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.8This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.