test
The fuseless load feeders/combination starters are manufactured and
tested in acc. with IEC 60947 Part 1 and Part 2.
An important selection criterion for the fuseless load feeders/combination
starters are the coordination types.
IEC 60947-4-1/DIN VDE 0660 Part 102 draws a distinction between two
coordination types, known as coordination type 1 and coordination type 2.
They describe what happens at a short circuit and the device status after a
short circuit. In both coordination types, the short circuit to be dealt with is
reliably disconnected. There must be no damage to systems or injury to persons.
The differences lie only in the degree to which the device is damaged
after the short circuit
+ نوشته شده در سه شنبه ۱۳۹۲/۰۳/۱۴ ساعت توسط اکبر
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