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Standard 1951, Edition 2

Standard for Electrical Plumbing Accessories

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Standard 1951, Edition 2 Edition Date: February 27, 2017
Summary of Topics s1951_2_sum.html


These revisions to ANSI/UL 1951 include the following changes in requirements:

•Update requirements for capacitors

•Update requirements for Switch-Mode Power Supplies

•Update requirements for switches

•Allow the use of UL 840 to evaluate clearance and creepage distances

•Add specifications for Safety Critical Functions

•Revise requirements for electronic circuits

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