This Malaysian Standard covers:
Standard degree of protection provided by enclosures for low-voltage switchgear and controlgear, as regards:
(a) protection of persons against contact with live or moving parts inside the enclosure and protection of equipment against ingress of solid foreign bodies;
(b) protection of equipment against ingress of liquid; markings regarding these degrees of protection;
tests to be performed to prove that the equipment meets the requirements of this standard.
This standard does not apply to special degrees of protection, such a protection of equipment in an explosive atmosphere or protection against other unusual service conditions such as fungus and corrosive vapours.
The effect of stresses occurring during short circuit operation are not covered by this standard.
MS 941-1984 history
1984MS 941-1984 Specification for protection levels of enclosures of low-voltage switchgear and control equipment