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Database: 189760 (25 Oct 2025)
GB/T 7449-1987 English PDF
Standard ID
Contents [version]
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Standard Title (Description)
Status
PDF
GB/T 7449-1987
English
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9 days [Need to translate]
Guide to the lightning impulse and switching impulse testing of power transformers and reactors
Obsolete
GB/T 7449-1987
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Basic data
Standard ID
GB/T 7449-1987 (GB/T7449-1987)
Description (Translated English)
Guide to the lightning impulse and switching impulse testing of power transformers and reactors
Sector / Industry
National Standard (Recommended)
Classification of Chinese Standard
K41
Classification of International Standard
29.180
Word Count Estimation
32,348
Date of Issue
3/16/1987
Date of Implementation
10/1/1987
Regulation (derived from)
Announcement of Newly Approved National Standards 2005 No. 11 (No. 85 overall)
Issuing agency(ies)
National Bureau of Standards