protection class

D

Thread Starter

Dijo Mathew

whatis IPW55?
what is IP55?
whatis IP65?
What is IP 42?

please explain about various class of protection IP42, IP55, IP65 etc and testing procedure
 
Hi there,

The IP Code stands for "International Protection" rating. We sometimes we refer to it by our own interpretation as "Ingress Protection" rating. Both are fine to use.

This rating is a international standard as laid out in IEC 60529 (International Electrotechnical Commission). The standard classifies the degrees of protection against intrusion of solids (including body parts like hands and fingers), dust and water in electrical enclosures. The standard see a enclosure as a part providing protection of equipment against external influences and in any direction against direct contact.

The code consists of the letters IP followed by two digits and an optional letter. Where there is no protection rating with regard to one of the criteria, the digit can be replaced with the letter X.

The first digest after the IP deals with two degrees of protection. Protection a person have against access to hazardous parts inside the enclosure as well as protection against the size of a solid objects that can enter the enclosure :

0 = No protection at all

1 = Protection against the hazardous parts inside the enclosure with the back of the hand as well as protection against solid foreign objects bigger than 50mm in dia.

2 = Protection against the hazardous parts inside the enclosure with a finger as well as protection against solid foreign objects bigger than 12,5mm in dia.

3 = Protection against the hazardous parts inside the enclosure with a tool as well as protection against solid foreign objects bigger than 2,5mm in dia.

4 = Protection against the hazardous parts inside the enclosure with a wire as well as protection against solid foreign objects bigger than 1mm in dia.

5 = Protection against the hazardous parts inside the enclosure with a wire as well as protection against dust (Dust protection = Dust ingress shall not be of such quantities as to interfere with the operation of the protected equipment or to impair safety).

6 = Protection against the hazardous parts inside the enclosure with a wire as well as dust tight protection (Dust tight protection = No ingress of dust at all)

The second digit indicates the degree of protection provided by the enclosure with respect to the ingress of water:

0 = No protection at all

1 = Protected against vertically falling droplets of water

2 = Protected against vertically falling droplets of water when enclosure is tilted up to 15 degrees

3 = Protected against spraying water

4 = Protected against splashing water

5 = Protected against water jets

6 = Protected against powerful water jets

7 = Protected against the effects of temporary immersion in water or in less than 1 meter of water.

8 = Protected against the effects of continuous immersion in water.
NOTE: Normally, this will mean that the equipment is hermetically sealed. However, with certain types of equipment, it can mean that water can enter but only in such a manner that produces no harmful effects.

Some other letters that can be added for additional information:

H = High Voltage device
M = Device moving during water test
S = Device standing still during water test
W = Weather conditions

I do not understand your question on testing procedures. Elaborate please.
 
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