DIN EN 62788-1-2
; VDE 0126-37-1-2:2017-03
Measurement procedures for materials used in photovoltaic modules - Part 1-2: Encapsulants - Measurement of volume resistivity of photovoltaic encapsulants and other polymeric materials (IEC 62788-1-2:2016); German version EN 62788-1-2:2016
Messverfahren für Werkstoffe, die in Photovoltaikmodulen verwendet werden - Teil 1-2: Verkapselungsstoffe - Messung des spezifischen Durchgangswiderstandes von Verkapselungsstoffen und anderen Polymer-Materialien von Photovoltaikmodulen (IEC 62788-1-2:2016); Deutsche Fassung EN 62788-1-2:2016
Overview
This part of IEC 62788 provides a method and guidelines for measuring the volume resistivity of materials used as encapsulation, edge seals, front-sheets, backsheets, or any other insulating material in a photovoltaic (PV) module. Both monolithic and multilayer materials (such as frontsheets and backsheets) are suitable for measurement. Methods are described for room temperature measurement, with guidelines included for testing at elevated temperatures. Measurements obtained using either method may be used by material manufacturers for the purpose of quality control of their electrical insulating material as well as for reporting in product datasheets. This measurement method can also be utilized to monitor the performance of electrical insulating materials after weathering, to assess their durability. The responsible committee is DKE/K 373 "Photovoltaische Solarenergie-Systeme" ("Photovoltaic solar power systems") of the DKE (German Commission for Electrical, Electronic and Information Technologies) at DIN and VDE.
