BS 4846:1972
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Specification for resistors for traction purposes
Hardcopy , PDF
08-15-2001
English
10-27-1972
Foreword
Specification
1. General
1.1 Scope
1.2 Definitions
1.3 Categories of tests
2. Conditions to be satisfied by resistors
2.1 Resistance values
2.2 Temperature rises
2.3 Short-circuit withstand
2.4 Vibration and shock withstand
2.5 Protection against corrosion
2.6 Performance in rain and snow
3. Tests
3.1 List of tests
3.2 Check on characteristics of resistor material (type
test)
3.3 Check on rated resistance (type and routine tests)
3.4 Temperature-rise tests (type tests)
3.5 Tests for withstanding vibration and shock
(optional type test)
3.6 Dielectric tests (routine test)
3.7 Hygroscopic test (optional type test)
3.8 Short-circuit test (optional type test)
3.9 Test for performance in rain (type test)
3.10 Condition of resistor after test
4. Rating plate
4.1 General
Tables
1. Tolerances on the resistance of boxes, frames,
blocks or sections of resistors and complete
resistors
2. Tolerances on the resistance of resistor elements
3. List of tests
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