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IP RATINGS
IP is an acronym for Ingress Protection.
The IP ratings are arrived at as a result of the ingress protection
tests specified in IEC 529: 1989 which equates to European
Standard EN 60529: 1992.
This standard describes a system for classifying
the degrees of protection provided by the enclosures of electrical
equipment. The object of the standard is to give protection
to persons against access to hazardous parts inside the enclosure;
protection of the equipment inside the enclosure against ingress
of solid foreign objects and protection of the equipment inside
the enclosure against harmful effects due to the ingress of
water or other liquids. The letters IP are followed by two
numerals. The coding system indicates.
| IP
CODES - INGRESS PROTECTION |
| FIRST
NUMERAL |
SECOND
NUMERAL |
| X
Protection unspecified (untested) |
X
Protection unspecified (untested) |
X Protection unspecified (untested) |
| 0
No protection |
0
No special protection provided |
0 No protection |
| 1
Objects > 50mm |
1
Protection of hand against access to dangerous parts |
1 Vertically dripping water |
| 2
Objects > 12mm |
2
Protection of fingers against access to dangerous parts |
2 75-90° angled dripping water |
| 3
Objects > 2.5mm |
|
3 Sprayed water |
| 4
Objects > 1.0mm |
|
4 Splashed water |
| 5
Dust protected* |
|
5 Water jets |
| 6
Dust tight |
|
6 Powerful water jets |
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7
Temporary immersion |
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8
Continuous immersion |
| PROTECTION
AGAINST SOLID BODIES |
PROTECTION
OF PERSONS AGAINST ACCESS |
PROTECTION
AGAINST LIQUIDS |
* - Dust protected means - protection against
entry of dust in sufficient quantity to interfere with satisfactory
operation of equipment
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