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Indian Standard Details

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Basic Details
IS Number : IS 7421 : 1988
Reviewed In : 2019
IS Title [Eng-Hn] : Specification for porcelain bushings for alternating voltages upto and including 1 000 V (First Revision)
No of Revision : 1
No of Amendments : 0
Technical Department : Electrotechnical Department
Technical Committee : ETD 6 ( Electrical Insulators And Accessories )
Language : English

Classification Details
Group : Electrical Switchgear and Other Electrical Products/Accessories
Sub Group: Insulating material and systems
Sub Sub Group : Electrical insulators and insulating oils
Aspects: Product Specification
Certification: Voluntary Certification
Ministry : Ministry of Power, Ministry of Railways
Short Commom Man's Title: Porcelain bushings for alternating voltage up to and including 1000 V
Itchs: 85471010
Degree of Equivalence: Indigenous
Identical/Equivalent Standards:
Organisation :

Cross Referencing Details
Indian Standards Refered In IS IS 7421 : 1988 :
SNo IS Number Title Technical Committee
1
IS 10314 : 1982 Dimensions for ceramic bushings for terminals ETD 6
2
IS 2099 : 1986 Bushings for alternating voltages above 1 000 Volts ETD 6
International Standards Refered In IS 7421 : 1988 Standard contains no Cross Referenced International Standard.
IS 7421 : 1988 is Refered in following Indian Standards :
SNo IS Number Title Technical Committee
1 IS 3347 : Part 8 : Sec 1 : 1988 Dimensions for porcelain transformer bushings for use in lightly polluted atmospheres: Part 8- 52 kV bushings: Sec 1 porcelain part ETD 6
2 IS 1180 : Part 1 : 2014 Outdoor Type Oil Immersed Distribution Transformers Upto and Including 2 500 kVA, 33kV - Specification Part 1 Mineral Oil Immersed (Fourth Revision) ETD 16
3 IS 1180 : Part 2 : 1989 Outdoor Type Three-phase Distribution Transformers Up To And Including 100 Kva 11 Kv:part 2 Sealed Type ETD 16
4 IS 7903 : 2011 Textiles - Tarpaulines Made From High Density Polyethylene Woven Fabric TXD 23