IEEE C37.20.1b-2006
- IEEE Standard for Metal-Enclosed Low-Voltage Power Circuit Breaker Switchgear - Amendment 2: Additional Requirements for Control
- Amendment by IEEE, 04/20/2007
- Category: IEEE
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Amendment Standard - Superseded.This amendment addresses additional requirements of auxiliary power wiring and controlwiring within dc switchgear of traction power substations with rated maximum voltage up to 3200volts dc. This amendment provides control and power wiring methods for dc traction powerswitchgear intended to increase reliability of the operation of the equipment, improve protection,reduce maintenance cost and initial cost, and improve overall performance of the dc traction powerswitchgear.
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