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Indian Standard Details

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Basic Details
IS Number : IS 9921 (Part 4) : 1985
Reviewed In : 2012
IS Title [Eng-Hn] : Alternating Current Disconnectors (isolators) and Earthing Switches for Voltages Above 1000 V - Part 4 : Type Tests and Routine Tests
No of Revision : 0
No of Amendments : 0
Technical Department : Electrotechnical Department
Technical Committee : ETD 8 ( High Voltage Switchgear And Controlgear )
Language : English

Classification Details
Group : Electrical Switchgear and Other Electrical Products/Accessories
Sub Group: Switchgear, Metering and Accessories
Sub Sub Group : Circuit breakers, switches and disconnectors
Aspects: Methods of tests
Certification: Not Certifiable
Ministry :
Short Commom Man's Title: Alternating Current Disconnectors (isolators) and Earthing Switches for Voltages Above 1000 V - Part
Itchs: N/A
Degree of Equivalence: N/A
Identical/Equivalent Standards:N/A

Cross Referencing Details
Indian Standards Refered In IS IS 9921 : Part 4 : 1985 :
SNo IS Number Title Technical Committee
1
IS 1818 : 1972 Alternating current isolators (disconnectors) and earthing switches ETD 8
International Standards Refered In IS 9921 : Part 4 : 1985 Standard contains no Cross Referenced International Standard.
IS 9921 : Part 4 : 1985 is Refered in following Indian Standards :
SNo IS Number Title Technical Committee
1 IS 14657 : 1999 Gas insulated metal enclosed switchgear for rated voltages 72.5 kV and above - requirements for switching of bus-charging currents by disconnectors ETD 8
2 IS 13118 : 1991 High-Voltage Alternating-Current Circuit-Breakers ETD 8
3 IS 14659 : 1999 A. C. Insulation-Enclosed Switchgear and Controlgear for Rated Voltages Above 1 kV and up to and Including 38 Kv ETD 8
4 IS 14666 : 1999 High-voltage Alternating Current Switch-fuse Combinations ETD 8
5 IS 3427 : 1997 A.C. Metal Enclosed Switchgear and Controlgear for Rated Voltages Above 1 kV and Up to and Including 52 kV ETD 8
6 IS 9920 : Part 1 : 2002 High Voltage Switches - Part 1 : Switches for Rated Voltages Above 1 kV and Less Than 52 Kv ETD 8
7 IS/IEC 517 : 1990 Gas Insulated Metal Enclosed Switchgear for Rated Voltages of 72.5 kV and above ETD 8