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ASTM E1802 2012 Edition, December 1, 2012
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Standard Test Methods for Wet Insulation Integrity Testing of Photovoltaic Modules
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These test methods provide procedures to determine the insulation resistance of a photovoltaic (PV) module, i.e. the electrical resistance between the module's internal electrical components and its exposed, electrically conductive, noncurrent carrying parts and surfaces. 

The insulation integrity procedures are a combination of wet insulation resistance and wet dielectric voltage withstand test procedures. 

These procedures are similar to and reference the insulation integrity test procedures described in Test Methods E1462, with the difference being that the photovoltaic module under test is immersed in a wetting solution during the procedures. 

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

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

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 and health practices and determine the applicability of regulatory limitations prior to use.