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IS Number/आईएस संख्या : IS 9921 (Part 2) : 1982
Reviewed In : 2012

IS Title/आईएस शीर्षक : Alternating current disconnectors (isolators) and earthing switches for voltages above 1000 V: Part 2 Rating (Withdrawn)

Superseded by IS/प्रतिस्थापित आईएस : None

Degree of Equivalence/समतुल्यता स्तर : Indigenous

Number of Revisions/पुनरीक्षणों की संख्या : New Standard

Number of Amendments/संशोधनों की संख्या : No amendment issued

Aspect/पक्ष : Code of Practice

Language/भाषा : English

Reaffirmation Year/पुनर्पुष्टि वर्ष : 2012

Technical Department/तकनीकी विभाग : ETD (Electrotechnical Department)

Technical Committee/तकनीकी समिति : ETD 08 (High Voltage Switchgear And Controlgear Sectional Committee)

Member Secretary/सदस्य सचिव : Mr. Ashok Kumar (SCIENTIST-B)

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Indian Standards Referred In IS IS 9921 (Part 2) : 1982
Reviewed In : 2012 :

1	IS 1818 : 1972	Alternating current isolators (disconnectors) and earthing switches	ETD 8

International Standards Referred In IS 9921 (Part 2) : 1982
Reviewed In : 2012

1	IEC 60129 : 1975

IS 9921 (Part 2) : 1982
Reviewed In : 2012 is Referred in following Indian Standards :

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

Group	:	Electrical Switchgear and Other Electrical Products/Accessories
Sub Group	:	Switchgear, Metering and Accessories
Sub Sub Group	:	Circuit breakers, switches and disconnectors
Aspect	:	Code of Practice
Certification	:	Not Certifiable
Relevant Ministries	:
Sustainable development Goals :
Short Commom Man's Title	:	Alternating current disconnectors (isolators) and earthing switches for voltages above 1000 V: Part
ITC-HS Code	:	N/A
Degree of Equivalence	:
Identical/Equivalent International Standard(s)	:
Harmonized with	:

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