BS 6726:1998

Committees responsible
Foreword
Section one. General
1 Scope
2 Normative references
3 Definitions
4 Voltage designation
5 Core identification
6 Marking
7 Construction and overall dimensions
8 Electrical requirements
9 Requirements for mechanical strength of cables
10 Test under fire conditions
Section two. Requirements for rubber-insulated cables and
cords
11 Conductors
12 Insulation
13 Core identification
14 Sheath
Section three. Requirements for PVC-insulated cables and
cords
15 Conductors
16 Insulation
17 Core identification
18 Sheath
Annex A (informative) Guide to use of cables and cords
Annex B (informative) Guidance on procedure for routine
tests on rubber and PVC-insulated cables and cords of rated
voltages Uo/U up to 300/500 V
Annex C (normative) Electrical tests
Annex D (normative) Flexing test
Annex E (normative) Solderability test for plain
         conductors
Annex F (normative) Test for separation of cores
Bibliography
Figure 1 Cross sectional diagram of cable
Tables
1 Load to be used and diameter of pulleys for flexing test
2 current for flexing test
3 Rubber-insulated and sheathed cable, 300/500 V flat twin
4 Rubber-insulated and sheathed cord, 300/500 V
    single core and flat twin
5 Rubber-insulated and sheathed cord, 300/500 V circular
    twin
6 Rubber -insulated and sheathed cord, 300/500 V
    single core
7 Summary of the electrical tests on rubber-insulated
    cables and cords specified in section two
8 List of tests applicable to cables and cords specified
    in section two
9 PVC-insulated and sheathed cable and cord,
    300/500 V flat twin
10 PVC-insulated and sheathed cord, 300/500 V
    circular twin
11 PVC-insulated and sheathed cord, 300/300 V flat twin
12 PVC-insulated non-sheathed cord, 300/500 V single core
13 Divisible two layer PVC-insulated cable, 300/300 V
    flat twin
14 Summary of the electrical tests on PVC-insulated
    cables and cords specified in section three
15 List of tests applicable to cables and cords
    specified in section three
    B.1 Spark test voltage
    B.2 Insulation test voltage
    B.3 Insulation resistance constant (K value) at
          20 deg C
    B.4 Temperature correction factor