IEC 60529:2001 pdf download
IEC 60529:2001 pdf download.Degrees of protection providedby enclosures (IP Code).
4.3 Examples for the use of letters in the IP Code
The following examples are to explain the use and arrangement of letters in the IP Code. For more comprehensive examples see clause 9.
— no letters, no options;
— omitting first characteristic numeral;
— omitting second characteristic numeral;
— using additional letter;
— omitting both characteristic numerals, using additional letter;
— omitting first characteristic numeral, using additional letter;
— omitting second characteristic numeral, using additional letter;
— using supplementary letter;
— using additional letter and supplementary letter;
— giving two different. degrees of protection by an enclosure against both water jets and temporary immersion for “versatile” application.
5 Degrees of protection against access to hazardous parts and against solid foreign objects indicated by the first characteristic numeral
The designation with a first characteristic numeral implies that conditions stated in both 5.1 and 5.2 are met.
The first characteristic numeral indicates that:
— the enclosure provides protection of persons against access to hazardous parts by preventing or limiting the ingress of a part of the human body or an object held by a person;
and simultaneously
— the enclosure provides protection of equipment against the ingress of solid foreign objects. An enclosure shall only be designated with a stated degree of protection indicated by the first characteristic numeral if it also complies with all lower degrees of protection.
However, the tests establishing compliance with any one of the lower degrees of protection need not necessarily be carried out provided that these tests would obviously be met if applied.
5.1 Protection against access to hazardous parts
Table 1 gives brief descriptions and definitions for the degrees of protection against access to hazardous parts.
Degrees of protection listed in this table shall be specified only by the first characteristic numeral and not by reference to the brief description or definition.
To comply with the conditions of the first characteristic numeral, adequate clearance shall be kept between the access probe and hazardous parts.
The tests are specified in clause 12.
5.2 Protection against solid foreign objects
Table 2 gives brief descriptions and the definitions for the degrees of protection against the penetration of solid foreign objects including dust.
Degrees of protection listed in this table shall only be specified by the first characteristic numeral and not by reference to the brief description or definition.
The protection against the ingress of solid foreign objects implies that the object probes up to numeral 2 in table 2 shall not fully penetrate the enclosure. This means that the full diameter of the sphere shall not pass through an opening. in the enclosure. Object probes for numerals 3 and 4 shall not penetrate the enclosure at all.
Dust-protected enclosures to numeral 5 allow a limited quantity of dust to penetrate under certain conditions.
Dust-tight enclosures to numeral 6 do not allow any dust to penetrate.
NOTE Enclosures assigned a first characteristic numeral of 1 to 4 generally exclude both regularly and irregularly shaped solid foreign objects provided that three mutually perpendicular dimensions of the object exceed the appropriate figure in column 3 of table 2.
The tests are specified in clause 13.
6 Degrees of protection against ingress of water indicated by the second
characteristic numeral
The second characteristic numeral indicates the degree of protection provided by enclosureswith respect to harmful effects on the equipment due to the ingress of water.
The tests for the second characteristic numeral are carried out with fresh water. The actualprotection may not be satisfactory if cleaning operations with high pressure and/or solventsare used.
Table 3 gives brief descriptions and definitions of the protection for the degrees representedby the second characteristic numeral.
Degrees of protection listed in this table shall be specified only by the second characteristicnumeral and not by reference to the brief description or definition.
The tests are specified in clause 14.
Up to and including second characteristic numeral 6, the designation implies compliance alsowith the requirements for all lower characteristic numerals. However, the tests establishingcompliance with any one of the lower degrees of protection need not necessarily be carriedout provided that these tests obviously would be met if applied.
An enclosure designated with second characteristic numeral 7 or 8 only is consideredunsuitable for exposure to water jets (designated by second characteristic numeral 5 or 6) andneed not comply with requirements for numeral 5 or 6 unless it is dual coded as follows.
