BS 5253:1990
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Specification for alternating current disconnectors and earthing switches
Hardcopy , PDF
15-12-1994
English
31-12-1990
Applies to alternating current disconnectors and earthing switches intended for indoor and outdoor installation, for voltages above 1000 V and for service frequencies up to 60 Hz. Also covers operating devices of these disconnectors and earthing switches in enclosed switchgear and controlgear covered by IEC Publications 298: A.C. Metal-enclosed Switchgear and Controlgear for Rated Voltages Above 1 kV and up to and including 72.5 kV, 466: High Voltage Insulation-enclosed Switchgear and Controlgear and 517: High-voltage Metal-enclosed Switchgear for Rated Voltages of 72.5 kV and Above.
Important note : Users cannot be edited or removed once added to your Multi user PDF.Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.