Subject 2201

Bulletin Dated: September 27, 2012

SUMMARY OF TOPICS

The following changes in requirements to the Standard for Portable Engine-Generator Assemblies, UL 2201, are being proposed for preliminary review and comment only:

1. For Preliminary Review Only: This proposed new edition of the Standard for Portable Engine-Generator Assemblies, UL 2201, includes the following major changes: a) Revise definition of Live Part in paragraph 3.9; b) Delete definition of Pulsating Direct Current (DC) in paragraph 3.13; c) Add requirement for excess-flow and back-pressure check valve in paragraph 8.2.14; d) Add paragraph 15.7.7.1 to clarify references to GFCI evaluation and durability test; e) Add exceptions to paragraph 15.8.1 for branch circuit-type overcurrent protective devices; f) Update reference in paragraph 15.13.1 to investigate controls for engine-generator applications; g) Remove reference in paragraph 16.1.8 to Figure 16.1 for bonding conductors; h) Eliminate use of ASTM Reference Fuel A, I, and IRM 903 Oil in Section 18.7; i) Add "concrete" to the supporting surface for the GFCI Evaluation and Durability Test in paragraph 26.4; j) Reduce required hours and intervals of testing in paragraphs 26.6 and 26.7; k) Revise total harmonic distortion limit to 30% and remove Class 1, 2, and 3 circuits in paragraph 36.1; l) Remove sprinkler test in Section 44; and m) Revise Gasket Immersion Test in Section 45.2 to test fluids based on Table 18.1