1.
.
2) Code using optional letters:
IP S
Code letters
1st characteristic numeral
2nd characteristic numeral
Additional letter
Supplementary letter
An enclosure with this designation (IP Code)
(2) protects persons against access hazardous parts with fingers;
- protects the equipment inside the enclosure against ingress solid foreign objects having a
diameter 12,5 and greater;
(3) protects the equipment inside the enclosure against the harmful effects due water sprayed
against the enclosure;
(C) protects persons handling tools having diameter 2,5 and greater and length not
exceeding 100 against access hazardous parts (the tool may penetrate the
enclosure its full length);
(S) tested for protection against harmful effects due the ingress water when all the parts
of the equipment are stationary.2 Examples designations with the Code
1) Code not using optional letters:
IP 4
Code letters
1st characteristic numeral
2nd characteristic numeral
An enclosure with this designation (IP Code)
(3) protects persons, handling tools having diameter 2,5 and greater, against access to
hazardous parts;
- protects the equipment inside the enclosure against ingress solid foreign objects having a
diameter 2,5 and greater;
(4) protects the equipment inside the enclosure against harmful effects due water splashed
against the enclosure from any direction.CONSTRUCTION ELECTRICAL INSTALLATION AND EQUIPMENT 57
6
