Standard 1703, Edition 3
Red Line
September 26, 2018
UL 1703

Standard for Flat-Plate Photovoltaic Modules and Panels

UL Red Line Edition 3 Published Date: September 26, 2018 Last Revision: November 25, 2019

Summary of Topics s1703_3_sum.html


The revisions of ANSI/UL 1703 dated September 26, 2018 were issued to incorporate the following changes in requirements:

Clarification of the Manner of Conveyance of Installation and Assembly Instructions, Section 48.

Addition of Requirements for PV Modules as Class 2 Power Sources as Defined in NEC Table 11(B) and for use in Applications as Defined by NEC Article 725 as Well as With Other Class 2 Power Source Products and Systems.

Addition of Bifacial Module Requirements.

Revisions to Appendix B, Retest Guidelines.

Addition for the Allowance of TI/RTE as an Alternative for RTI in Accordance with the UL 61730 Standards.

Removal of Surface Tension Requirement in paragraph 27.2.

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