Codes & Standards - Purchase
- 690 V a.c. 50 Hz to 60 Hz, at a rated current not exceeding 250 A;
- 1 500 V d.c. at a rated current not exceeding 400 A.
This third edition cancels and replaces the second edition published in 2011 and constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) addition of a preferred operating voltage of 1 000 V d.c.;
b) addition of a preferred rated current of 80 A d.c.;
c) addition of a provision for a combined interface a.c./d.c.;
d) description of d.c. configurations (previously under consideration);
e) addition of requirements pertaining to the locking mechanism, the interlock and the latching device;
f) addition of a test for accessories not suitable for making and breaking an electrical circuit under load;
g) addition of requirements and tests for insulated end caps.