IEC 60144:1963 pdf download 低压开关设备和控制设备外壳的防护等级

IEC 60144:1963 pdf download,Degrees of protection of enclosures for low-voltage switchgear and controlgear
低压开关设备和控制设备外壳的防护等级
1.Scope
This recommendation covers:
standard degrees of protection provided by enclosures for low-voltage switchgear and controlgear,asregards:
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,
c)protection of equipment against mechanical damage (under consideration)；
markings regarding these degrees of protection;
tests to be performed to prove that the equipment meets the requirements of this recommendation.
This recommendation does not apply to special degrees of protection,such as protection of equipment
in an explosive atmosphere.Such equipment must comply with the recommendations prepared by I.E.C
Technical Committee No.31:Electrical apparatus for explosive gas atmospheres.Neither does it cover
protection against other unusual service conditions such as fungus and corrosive vapours.
This recommendation is intended to serve as a guide to the requirements for protective enclosures.The
tests,however,are applicable only where practicable and where agreed between manufacturer and user.
1.范围
本建议涵盖：
低压开关设备和控制设备外壳提供的标准防护等级，关于：
a） 保护人员不与外壳内的带电或移动部件接触，保护设备不受固体异物进入，
b） 防止液体进入设备，
c） 保护设备免受机械损坏（正在考虑中）
关于这些保护程度的标记；
进行试验以证明设备符合本建议的要求。
本建议不适用于特殊防护等级，如设备防护
在爆炸性的环境中。此类设备必须符合I.E.C制定的建议
技术委员会第31号：爆炸性气体环境用电气设备。也不包括防止其他不寻常的使用条件，如真菌和腐蚀性蒸汽。
本建议旨在作为保护外壳要求的指南。这个
然而，测试仅在可行的情况下以及在制造商和用户之间达成一致的情况下适用。