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I.S. HD 21-2:1998

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

POLYVINYL CHLORIDE INSULATED CABLES OF RATED VOLTAGES UP TO AND INCLUDING 450/750 V - PART 2: TEST METHODS
Available format(s)

Hardcopy , PDF

Superseded date

20-08-2003

Language(s)

English

Published date

01-01-1998

Preview

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.

Standards Relationship
HD 21-2 : S3 AMD 1 2002 Identical

EN 50268-1:1999 Common test methods for cables under fire conditions - Measurement of smoke density of cables burning under defined conditions - Part 1: Apparatus
EN 60719:1993 Calculation of the lower and upper limits for the average outer dimensions of cables with circular copper conductors and of rated voltages up to and including 450/750 V
EN 50267-2-1:1998 Common test methods for cables under fire conditions - Tests on gases evolved during combustion of materials from cables - Part 2-1: Procedures - Determination of the amount of halogen acid gas
HD 405.1 : S1 AMD 1 TESTS ON ELECTRIC CABLES UNDER FIRE CONDITIONS - TEST ON A SINGLE VERTICAL INSULATED WIRE OR CABLE
EN 50267-1:1998 Common test methods for cables under fire conditions - Tests on gases evolved during combustion of materials from cables - Part 1: Apparatus
EN 50268-2:1999 Common test methods for cables under fire conditions - Measurement of smoke density of cables burning under defined conditions - Part 2: Procedure
EN 50265-2-2:1998 Common test methods for cables under fire conditions - Test for resistance to vertical flame propagation for a single insulated conductor or cable - Part 2-2: Procedures - Diffusion flame
EN 50267-2-3:1998 Common test methods for cables under fire conditions - Tests on gases evolved during combustion of materials from cables - Part 2-3: Procedures - Determination of degree of acidity of gases for cables by determination of the weighted average of pH and conductivity
EN 50267-2-2:1998 Common test methods for cables under fire conditions - Tests on gases evolved during combustion of materials from cables - Part 2-2: Procedures - Determination of degree of acidity of gases for materials by measuring pH and conductivity
EN 50265-1:1998 Common test methods for cables under fire conditions - Test for resistance to vertical flame propagation for a single insulated conductor or cable - Part 1: Apparatus
EN 50265-2-1:1998 Common test methods for cables under fire conditions - Test for resistance to vertical flame propagation for a single insulated conductor or cable - Part 2-1: Procedures - 1 kW pre-mixed flame

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