Low Voltage Switchboards

Designation Number:
C22.2 No. 244
Standard Type:
Consensus SDO Standard
Standard Development Activity:
New Edition
Status:
Proceeding to development
SDO Comment Period Start Date:
SDO Comment Period End Date:
Posted On:

Scope:

1.1.1
This Standard applies to switchboards nominally rated at 600 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.

1.1.2
In this standard the term switchboard is intended to refer to a dead-front switchboard.

1.1.3
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.

1.1.4 
These requirements cover switchboards for use on circuits having available rms symmetrical short-circuit currents of not more than 200 000 A.
 

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