Technical Guide P92x/EN TD/E11
Technical Data
MiCOM P921-P922-P923 Page 29/30
11. ANSI TEST REQUIREMENTS
The products shall meet the ANSI / IEEE requirements as follows :-
11.1 ANSI / IEEE C37.90.1989
Standards for relays and relay systems associated with electric power apparatus.
11.2 ANSI / IEEE C37.90.1 : 1989
Surge withstand capability (SWC) tests for protective relays and relay systems :-
Oscillatory test - 1MHz to 1.5MHz, 2.5kV to 3.0kV,
Fast transient test 4kV to 5kV
11.3 ANSI / IEEE C37.90.2 : 1995
Standard for withstand capability of relay systems to radiated electromagnetic
interference from transceivers. 35V/m , 25 to 1000Mhz.
12. SAFETY
12.1 Low Voltage (safety and insulation) Directive
The product complies with the low voltage (safety/insulation) directive EN61010-
1:1993.
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