Specification for cables with extruded cross-linked polyethylene or ethylene propylene rubber insulation for rated voltages from 3800/6600 V up to 19000/33000 V

Available format(s)

Hardcopy , PDF

Superseded date

15-01-1999

Language(s)

English

Published date

28-06-1991

Publisher

British Standards Institution

Committees responsible
Foreword
Specification
1. Scope
2. Voltage designation
3. Conductors
4. Conductor screen
5. Insulation
6. Insulation screen
7. Laying-up
8. Inner covering
9. Collective metallic screen
10. Armour
11. Oversheath
12. Marking
13. Sealing and drumming
14. Schedule of tests
15. Test conditions
16. Routine tests
17. Regular sample tests
18. Special sample tests
19. Type tests
20. Dimensions
21. Optional requirements
Appendices
A. Recommendations for the selection of cables
B. Information to be provided with enquiry or order
C. Recommendations for the installation of cables
D. Special sample tests
E. Method of measuring resistivity of extruded semi-
     conducting conductor and insulation screens
F. Regular sample thickness test
G. Information on type tests
H. Partial discharge test
J. Type tests
K. Impulse voltage test
L. Methods of test for semi-conducting unvulcanized
     rubber compound
M. Guide to use
Tables
1. Dimensions of shaped solid aluminium conductors
2. Cross-linked polyethylene (XLPE) and ethylene
     propylene rubber compound (EPR) insulation
3. Mass of zinc coating
4. Schedule of tests
5. Routine tests
6. D.C. resistance of copper wire screen
7. Voltage for partial discharge test
8. Voltage for test on complete cable
9. Regular sample tests
10. Special sample tests
11. Type tests
12. Power factor with relation to voltage
13. Power factor with relation to temperature
14. Voltage for impulse withstand test
15. 4 h voltage test
16. Compatibility requirements
17. Single-core cables 3800/6600 V
18. Three-core cables 3800/6600 V
19. Single-core cables 6350/11,000 V
20. Three-core cables 6350/11,000 V
21. Single-core cables 8700/15,000 V
22. Three-core cables 8700/15,000 V
23. Single-core cables 12,700/22,000 V
24. Three-core cables 12,700/22,000 V
25. Single-core cables 19,000/33,000 V
26. Three-core cables 19,000/33,000 V
27. Selection of cables for three-phase a.c. systems
28. Minimum bending radius during installation
29. Minimum bending radius with cable adjacent to
     joints or terminations
30. Voltage for test after installation
31. Special 4 h voltage test
Figures
1. Test piece and arrangement of electrodes for
     measurement of resistivity of conductor screen of
     circular core
2. Test piece and arrangement of electrodes for
     measurements of resistivity of insulation screen
     of circular core
3. Arrangement of test piece, electrodes and
     insulating strips for measurement of resistivity
     of conductor and insulation screens of shaped core
4. Dimensions of test piece for measurement of
     resistivity of semi-conducting unvulcanized rubber
     compound
5. Test arrangement for measurement of resistivity
     of semi-conducting unvulcanized rubber compound

Covers screened cables having semi-conducting layers over the conductor and over the insulation. All types have a metallic layer over the cores. Gives construction, dimensions and requirements.

Committee	GEL/20/16
DevelopmentNote	Supersedes BS 6622(1985), 90/22766 DC, 91/33356 DC and 94/208030 DC. (03/2006)
DocumentType	Standard
Pages	50
PublisherName	British Standards Institution
Status	Superseded
Supersedes	BS 6622:1985

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