BS 7870-8.2:2003
$142.49
LV and MV polymeric insulated cables for use by distribution and generation utilities. Specification for multicore and multipair cables for installation above and below ground – Single wire armoured and PVC sheathed multipair cable with copper conductors – Section 8.2 Single wire armoured and PVC sheathed multipair cable with copper conductors
| Published By | Publication Date | Number of Pages |
| BSI | 2003 | 24 |
This section of BS 7870 specifies requirements for the construction, dimensions and mechanical and physical properties of multipair polyethylene insulated, PVC sheathed cables. It specifies requirements for multipair cables (4 pairs to 61 pairs) having copper conductors with filled and unfilled interstices, normal and increased insulation and bedding thicknesses and either steel or aluminium wire armour.
This section of BS 7870 is applicable to cables for use underground in wet conditions and also for withstanding high levels of induced voltage.
NOTE A “guide to use” is given in Annex A.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | BRITISH STANDARD |
| 2 | Committees responsible |
| 3 | Contents |
| 4 | Foreword |
| 5 | 1 Scope 2 Normative references 3 Rated voltage 4 Conductors 5 Insulation |
| 6 | 6 Identification of pairs |
| 7 | 7 Assembly of pairs, fillers and binders 8 Bedding layer 9 Armouring 10 Oversheath |
| 8 | 11 Marking 11.1 External marking 11.2 Identification of year of manufacture 11.3 Mark of an approval organization |
| 9 | 11.4 Additional marking 12 Dimensions |
| 10 | Table 1 Table 2 |
| 11 | Table 3 |
| 12 | 13 Tests Table 4 14 Routine tests 14.1 General 14.2 Conductor resistance |
| 13 | 14.3 Insulation resistance Table 5 14.4 Voltage test 14.5 Spark test on oversheath 14.6 Voltage test on oversheath 14.7 Cable markings 15 Sample tests 15.1 General 15.2 Conductor material and construction |
| 14 | 15.3 Insulation 15.4 Capacitance unbalance 15.5 Pair identification 15.6 Laid-up pairs 15.7 Bedding layer 15.8 Armour wire |
| 15 | Table 6 15.9 Oversheath 15.10 Insulation resistance 15.11 Water penetration test for filled cables 16 Type tests 16.1 General 16.2 Insulation |
| 16 | Table 7 16.3 Bedding 16.4 Mass of zinc coating of galvanized steel armour wires Table 8 16.5 Wrapping test for galvanized steel armour wires 16.6 Tensile strength of aluminium wire |
| 17 | 16.7 Oversheath 16.8 Mutual capacitance Table 9 16.9 Inductance 16.10 Compatibility of materials test for filled cables |
| 18 | Annex A (informative) Guide to use A.1 General A.2 Recommendations for selection A.3 Recommendations for storage, transport and disposal A.4 Recommendations for cable laying and installation |
| 19 | A.5 Tests after installation (before jointing) A.6 Tests after installation (after jointing) |
| 20 | Annex B (normative) Compatibility of filling materials B.1 General B.2 Samples B.3 Procedure |
| 21 | Annex C (normative) Water penetration test Figure C.1 Water penetration test arrangement |
| 23 | Bibliography |
