Summary of Topics s1778_5_sum.htmlSummary of Topics
This revision of ANSI/UL 1778 is being issued to include the following changes:
Addition of dated reference to UL 60950 RD
Update to references to the component requirements of the RD
Update to Table 4.5.3.101A for temperature limits
Revision to bus bar temperature limits
Addition of symbol for no telecommunication network
Corrections in Annex NNN for short-circuit withstand rating
Addition of requirements and figure for short circuit withstand and short circuit closing test port location
Updates to References