This Standard specifies the requirements in classification, grading, marking, definition, testing method, and requalification of enclosure protection degree of low-voltage electrical apparatus (hereinafter referred as to electric apparatus). This Standard is applicable to enclosure protection grading of electric apparatus. This Standard is not applicable to protection of electric apparatus against physical damage, explosive / active gas, condensing wet (e.g. dew), mold, damage by insect, etc. This Standard is also not applicable to stress effect caused by short-circuit operation.
Basic Data
Standard ID
GB/T 4942.2-1993 (GB/T4942.2-1993)
Description (Translated English)
Degrees of protection provided by enclosures for low-voltage apparatus
Sector / Industry
National Standard (Recommended)
Classification of Chinese Standard
K30
Classification of International Standard
29.020
Word Count Estimation
17,190
Date of Issue
4/20/1993
Date of Implementation
12/1/1993
Older Standard (superseded by this standard)
GB 4942.2-1985
Adopted Standard
IEC 947-1-1988, MOD; IEC 529-1989, NEQ
Regulation (derived from)
National Standard Committee Bulletin (2005 No. 146)
