I.S. HD 21-2:1998
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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POLYVINYL CHLORIDE INSULATED CABLES OF RATED VOLTAGES UP TO AND INCLUDING 450/750 V - PART 2: TEST METHODS
Hardcopy , PDF
English
01-01-1998
20-08-2003
1. General
1.1 Scope
1.2 Applicable tests
1.3 Classification of tests according to the
frequency with which they are carried out
1.4 Sampling
1.5 Pre-conditioning
1.6 Test temperature
1.7 Test voltage
1.8 Checking of the durability of colours and
markings
1.9 Measurement of insulation thickness
1.10 Measurement of sheath thickness
1.11 Measurement of overall dimensions and ovality
2. Electrical tests
2.1 Electrical resistance of conductors
2.2 Voltage test on completed cable
2.3 Voltage test on cores
2.4 Insulation resistance
2.5 Long term resistance of insulation to direct
current
2.6 Test to check the absence of faults on
insulation
2.7 Screening efficiency
3. Test of mechanical strength of completed flexible
cables
3.1 Flexing test
3.2 Bending test
3.3 Snatch test
3.4 Test for separation of cores
3.5 Extension tests for extensible leads
3.6 Endurance test for extensible leads
4. Tests under fire conditions
4.1 Test for extensible leads
Annex A Normative references (Normative)
Annex B Procedure for checking the efficacy of the
method of spark testing (Normative)
Annex C Measurement of sheath thickness for flat cords
(Normative)
Annex D Calculation of minimum insulation resistance
(Informative)
Annex E Bibliography (Informative)
Covers rigid and flexible cables with insulation and sheath, if any, based on polyvinyl chloride, of rated voltages U[0]/U up to and including 450/750 V used in power installations of nominal voltage not exceeding 450/750 V a.c.
| DocumentType |
Standard
|
| Pages |
48
|
| PublisherName |
National Standards Authority of Ireland
|
| Status |
Superseded
|
| SupersededBy |
| Standards | Relationship |
| HD 21-2 : S3 AMD 1 2002 | Identical |
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