GB/T 4942.1-2006: Degrees of protection provided by the integral design of rotating electrical machines (IP code) -- Classification

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Scope

This Part applies to the classification of degrees of protection provided by enclosures
for rotating electrical machines. It defines the requirements for protective enclosures
that are in all other respects suitable for their intended use and which, from the point of
view of materials and workmanship, ensure that the properties dealt with in this
Standard are maintained under normal conditions of use.
This Part does not specify:
--- Degrees of protection against mechanical damage of the machine, or conditions
such as moisture (produced for example by condensation), corrosive dust and
vapor, fungus or vermin;
--- Types of protection of machines for use in a potentially explosive (dust, vapor)
environment.
--- Requirements for fences placed around the enclosure only for personal safety.
In certain applications (such as agricultural or domestic appliances), more extensive
precautions against accidental or deliberate contact may be specified.
This Part gives definitions for standard degrees of protection provided by enclosures
applicable to rotating electrical machines as regards:
a) Protection of persons against contacts with or approach to live parts and against
contact with moving parts (other than smooth rotating shafts and the like) inside
the enclosure and protection of the machine against ingress of solid foreign
objects;
b) Protection of machines against the harmful effects due to ingress of water.
This Part gives designations for these protective degrees and tests to be performed to
check that the machines meet the requirements of this Standard.

Basic Data

Standard ID	GB/T 4942.1-2006 (GB/T4942.1-2006)
Description (Translated English)	Degrees of protection provided by the integral design of rotating electrical machines (IP code) -- Classification
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	K20
Classification of International Standard	29.160.01
Word Count Estimation	18,171
Date of Issue	2006-03-06
Date of Implementation	2006-08-01
Older Standard (superseded by this standard)	GB/T 4942.1-2001
Quoted Standard	GB 755-2000; GB/T 1993-1993
Adopted Standard	IEC 60034-5-2000, IDT; IEC 60034-5 COR.1-2001, NEQ
Regulation (derived from)	China Announcement of Newly Approved National Standards No. 4, 2006 (No. 91 overall)
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary	This standard applies to rotating electrical enclosure classification. This section specifies the requirements for protective shell, the shell shall comply in all respects with the requirements and under normal conditions of use shell materials and processing technology should be able to ensure that its performance meets the requirements of this standard.