The coordination requirements and test methods of short circuit protective device (SCPD) in standard GB14048.4 are introduced. The selection methods of circuit breaker or fuse as SCPD are described.
介绍GB 14 0 4 8 4中与短路保护装置(SCPD)协调配合的要求和试验方法，叙述SCPD为断路器或熔断器时选配方法。
Tip: Replacement of fuse: Turn down the fuse cover counterclockwise, remove the fuse(protective tube), after replacing, tighten the fuse cover clockwise only (Fuse model: F15A/250V ).
提示：熔断管的更换：逆时针方向旋下熔断器帽，取出熔断管（保险管），更换后，顺时针方向拧紧熔断器帽即可。熔断管型号：F15A/250V。
Tip: Replacement of fuse: Turn down the fuse cover counterclockwise, remove the fuse(protective tube), after replacing, tighten the fuse cover clockwise only (Fuse model: F15A/250V ).
提示：熔断管的更换：逆时针方向旋下熔断器帽，取出熔断管（保险管），更换后，顺时针方向拧紧熔断器帽即可。熔断管型号：F15A/250V。
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