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UL 891 BULLETIN
English -- UL Standard for Safety Switchboards - COMMENTS DUE: JULY 10, 2017
Organization:
UL - UL
Year: 2017
Abstract: Scope: Scope and object This Standard applies to switchboards nominally rated at 1 000 V or less and intended for use in accordance with the Canadian Electrical Code, Part 1 (CE Code, Part 1), the National Electrical Code (NEC), ANSI/NFPA 70, and the Mexican Standard for Electrical Installations (Utility), NOM-001-SEDE. In this standard the term switchboard is intended to refer to a dead-front switchboard. These requirements do not cover the following switchboard types: preset and dimmer control (theater), live front, railway control or electrification; or constructions intended only for receiving motor control center units. These requirements cover switchboards for use on circuits having available rms symmetrical short-circuit currents of not more than 200 000 A. These requirements do not cover switchboards with short-time current ratings
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UL 891 BULLETIN
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| contributor author | UL - UL | |
| date accessioned | 2017-10-18T11:04:17Z | |
| date available | 2017-10-18T11:04:17Z | |
| date copyright | 2017.05.26 | |
| date issued | 2017 | |
| identifier other | QPBDZFAAAAAAAAAA.pdf | |
| identifier uri | http://yse.yabesh.ir/std;quessionid=4703n/handle/yse/234532 | |
| description abstract | Scope: Scope and object This Standard applies to switchboards nominally rated at 1 000 V or less and intended for use in accordance with the Canadian Electrical Code, Part 1 (CE Code, Part 1), the National Electrical Code (NEC), ANSI/NFPA 70, and the Mexican Standard for Electrical Installations (Utility), NOM-001-SEDE. In this standard the term switchboard is intended to refer to a dead-front switchboard. These requirements do not cover the following switchboard types: preset and dimmer control (theater), live front, railway control or electrification; or constructions intended only for receiving motor control center units. These requirements cover switchboards for use on circuits having available rms symmetrical short-circuit currents of not more than 200 000 A. These requirements do not cover switchboards with short-time current ratings | |
| language | English | |
| title | UL 891 BULLETIN | num |
| title | English -- UL Standard for Safety Switchboards - COMMENTS DUE: JULY 10, 2017 | en |
| type | standard | |
| page | 202 | |
| status | Active | |
| tree | UL - UL:;2017 | |
| contenttype | fulltext |