Summary of Topics b0857_13_20081107_sum.htmlSubject 857
Bulletin Dated: November 7, 2008
SUMMARY OF TOPICS
The following changes in requirements are being proposed:
1. The proposed Thirteenth Edition of the Standard for Busways, UL 857, includes the following proposals: a) Revise Clauses 1.2.1 and 1.2.2; b) Add Note for Requirements in Clause 2.3.4.4.1 (Currently Clause 2.3.4.4) for Lighting Plug-in Busways; c) Revise Advisory Note in Clause 5; d) Delete "No." from References to "AWG" in Standard UL 857; e) Correct and Modify Requirements in Clauses 7.8.3.4 and 7.8.3.5 (Currently Clauses 7.8.3.1.3 and 7.8.3.1.4) for Alternative Wire Connectors; f) Revise Table 9; and g) Revise Various Requirements for Maximum Temperature Rises in Table 12
2. Revision of Clause 2.3.4.3.1 (Currently Clause 2.3.4.3) to Allow Use of Continuous Plug-In Busways Rated to 400 Amps