IS 9921 Pt.2-1982
Specification for AC isolators (isolators) and earthing switches for voltages above 1000 V Part II ratings

Standard No.

IS 9921 Pt.2-1982

Release Date

1982

Published By

IN-BIS

Latest

IS 9921 Pt.2-1982

Scope

This specification applies to alternating current disconnectors and earthing switches, designed for indoor and outdoor installation, for voltages above 1 000 V and for the service frequency of 50 Hz.

IS 9921 Pt.2-1982 history

• 1982 IS 9921 Pt.2-1982 Specification for AC isolators (isolators) and earthing switches for voltages above 1000 V Part II ratings