BS 142-2.1(1982) : 1982
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
ELECTRICAL PROTECTION RELAYS - REQUIREMENTS FOR THE PRINCIPAL FAMILIES OF PROTECTION RELAYS - SPECIFICATION FOR ALL OR NOTHING ELECTRICAL PROTECTION RELAYS
Hardcopy , PDF
15-08-1997
English
01-01-1982
Foreword
Cooperating organizations
Specification
1 Scope
2 Definitions
3 Characteristic values
4 Permissible maximum temperatures
5 Accuracy of specified times
6 Mechanical durability
7 Contact performance
8 Rated burden (power)
9 Clearance and creepage distances
10 Shock and vibration
11 Construction
12 Classification of tests
13 Tests
14 Data and marking
15 High-frequency disturbance test
Tables
1 Resistance to mechanical shock and vibration
2 Vibration level tolerances
3 Vibration test conditions
Figure
1 Maximum test acceleration levels for resonances not
harmonically related to nominal frequency range
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