Download BS 6231.pdf PDF

TitleBS 6231.pdf
File Size245.5 KB
Total Pages18
Document Text Contents
Page 1

|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|

BRITISH STANDARD BS 6231:1998
Incorporating
Amendment No. 1

ICS 29.060.20

NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW

Specification for

PVC-insulated cables
for switchgear and
controlgear wiring

Copyright British Standards Institution
Reproduced by IHS under license with BSI - Uncontrolled Copy Licensee=University of Hong Kong/5910986001

Not for Resale, 08/08/2005 20:45:40 MDTNo reproduction or networking permitted without license from IHS

-
-
`
`
,
,
,
,
,
,
,
,
,
,
,
,
,
`
`
,
,
,
,
`
,
,
`
`
,
,
`
-
`
-
`
,
,
`
,
,
`
,
`
,
,
`
-
-
-

Page 2

This British Standard, having
been prepared under the
direction of the Electrotechnical
Sector Board, was published
under the authority of the
Standards Board and comes into
effect on
15 August 1998

BSI 17 June 2005

First published, as BS 1231,
July 1945
Second edition, November 1958
Third edition, February 1963
Fourth edition, as BS 6231,
August 1969
Fifth edition, May 1978
Sixth edition, December 1981
Seventh edition, October 1990
Eighth edition, August 1998

The following BSI references
relate to the work on this
standard:
Committee reference GEL/20/1
Draft for comment 96/215021 DC

ISBN 0 580 29572 9

©

BS 6231:1998

Amendments issued since publication

Amd. No.

15648 17 June 2005
Certification notice in Foreword changed and deleted
on inside back cover

Date Text affected

Committees responsible for this
British Standard

The preparation of this British Standard was entrusted by Technical Committee
GEL/20, Electric cables, to Subcommittee GEL/20/1, Wiring cables, upon which the
following bodies were represented:

Association of Consulting Engineers

Association of Manufacturers Allied to the Electrical and Electronic Industry

(BEAMA Ltd)

British Approvals Service for Cables

British Cable Makers Confederation

British Plastics Federation

British Retail Consortium

Chartered Institution of Building Services Engineers

Department of Trade and Industry Ð Consumer Safety Unit, C A Division

Electricity Association

ERA Technology Ltd.

Electrical Installation Equipment Manufacturers Association (BEAMA Ltd.)

Engineering Industries Association

Institution of Incorporated Executive Engineers

Lift and Escalator Industries Association

London Underground Ltd.

Portable Electric Tool Manufacturers Association

Transmission and Distribution Association (BEAMA Ltd.)

Copyright British Standards Institution
Reproduced by IHS under license with BSI - Uncontrolled Copy Licensee=University of Hong Kong/5910986001

Not for Resale, 08/08/2005 20:45:40 MDTNo reproduction or networking permitted without license from IHS

-
-
`
`
,
,
,
,
,
,
,
,
,
,
,
,
,
`
`
,
,
,
,
`
,
,
`
`
,
,
`
-
`
-
`
,
,
`
,
,
`
,
`
,
,
`
-
-
-

Page 9

5

BS 6231:1998

12.2.6 Thermal�endurance�(for types AU and AK,
see 12.1.1)

Wind a sample of cable, without undue tension, for
four turns around and in contact with a metal
mandrel, the diameter of which is approximately
four times the maximum specified overall diameter
of the cable. Maintain the assembly at (85 ± 2) 8C for
not less than 1 000 h. Earth the mandrel and apply
the test voltage given in Table 4 between the
conductor and the mandrel continuously throughout
the period.

Cool the assembly to room temperature and apply
the test voltage given in Table 3 between the
conductor and the mandrel for a further period of
not less than 5 min.

Table 4 Ð Thermal endurance test voltage

Test Nominal
cross-sectional area

Test voltage r.m.s

mm2 V

AU 0.2 750

0.28 750

0.5 1 000

AK 0.22 750

0.5 1 000

0.75 1 500

13 Durability of colours and marking
Conformity to the requirements of 6.4 and 7.5 shall
be checked by trying to remove the colours of the
cables, the marking of the manufacturer's name or
trade mark, and the designated temperature, by
rubbing them lightly 10 times with a piece of cloth
soaked in water.

14 Test under fire conditions
Types BU, BR, BK, CU, CR and CK shall be tested in
accordance with BS 4066-1 and -2, as applicable, and
shall conform to the requirements of that standard.

© BSI 17 June 2005
Copyright British Standards Institution
Reproduced by IHS under license with BSI - Uncontrolled Copy Licensee=University of Hong Kong/5910986001

Not for Resale, 08/08/2005 20:45:40 MDTNo reproduction or networking permitted without license from IHS

--``,,,,,,,,,,,,,``,,,,`,,``,,`-`-`,,`,,`,`,,`---

Page 10

6

BS 6231:1998

Table 5 Ð Types AU and AK PVC-insulated cables

Construction

Tinned annealed copper conductor

Type AK 0.75 mm2 only: PVC insulation type TI 1;

All other cables: PVC insulation type 2

Colours

Single colours

Black, blue, brown, cream, green, grey, orange, pink, red, turquoise, violet, white, yellow

Bi-colours

Brown/blue, green/black, green/blue, green/brown, green/red, grey/blue, grey/brown, grey/green,
grey/orange, grey/red, orange/black, orange/blue, orange/brown, orange/green, orange/red, red/black,
red/blue, red/brown, white/black, white/blue, white/brown, white/green, white/grey, white/orange,
white/red, white/violet, white/yellow, yellow/green, yellow/violet

NOTE Base colours are indicated by bold type.

Type Conductor Radial thickness of insulation Mean overall
diameter,

upper limit

Minimum
insulation
resistance

at 20 8C
Nominal

cross-sectional
area

Number/
nominal

diameter of
wires, or class

Nominal Minimum

mm2 mm mm mm mm MV⋅km

AU 0.2 1/0.50 0.2 0.15 0.95 50

0.28 1/0.60 0.2 0.15 1.05 50

0.5 1/0.80 0.3 0.25 1.50 50

AK 0.22 class 5 0.2 0.15 1.05 50

0.5 class 5 0.3 0.25 1.65 50

0.75 class 5 0.6 0.50 2.45 10

© BSI 17 June 2005
Copyright British Standards Institution
Reproduced by IHS under license with BSI - Uncontrolled Copy Licensee=University of Hong Kong/5910986001

Not for Resale, 08/08/2005 20:45:40 MDTNo reproduction or networking permitted without license from IHS

--``,,,,,,,,,,,,,``,,,,`,,``,,`-`-`,,`,,`,`,,`---

Page 17

blank
Copyright British Standards Institution
Reproduced by IHS under license with BSI - Uncontrolled Copy Licensee=University of Hong Kong/5910986001

Not for Resale, 08/08/2005 20:45:40 MDTNo reproduction or networking permitted without license from IHS

-
-
`
`
,
,
,
,
,
,
,
,
,
,
,
,
,
`
`
,
,
,
,
`
,
,
`
`
,
,
`
-
`
-
`
,
,
`
,
,
`
,
`
,
,
`
-
-
-

Page 18

BS 6231:1998

BSI

389 Chiswick High Road

London

W4 4AL

BSI — British Standards Institution
BSI is the independent national body responsible for preparing
British Standards. It presents the UK view on standards in Europe and at the
international level. It is incorporated by Royal Charter.

Revisions

British Standards are updated by amendment or revision. Users of
British Standards should make sure that they possess the latest amendments or
editions.

It is the constant aim of BSI to improve the quality of our products and services.
We would be grateful if anyone finding an inaccuracy or ambiguity while using
this British Standard would inform the Secretary of the technical committee
responsible, the identity of which can be found on the inside front cover.
Tel: +44 (0)20 8996 9000. Fax: +44 (0)20 8996 7400.

BSI offers members an individual updating service called PLUS which ensures
that subscribers automatically receive the latest editions of standards.

Buying standards

Orders for all BSI, international and foreign standards publications should be
addressed to Customer Services. Tel: +44 (0)20 8996 9001.
Fax: +44 (0)20 8996 7001. Email: [email protected] Standards are also
available from the BSI website at http://www.bsi-global.com.

In response to orders for international standards, it is BSI policy to supply the
BSI implementation of those that have been published as British Standards,
unless otherwise requested.

Information on standards

BSI provides a wide range of information on national, European and
international standards through its Library and its Technical Help to Exporters
Service. Various BSI electronic information services are also available which give
details on all its products and services. Contact the Information Centre.
Tel: +44 (0)20 8996 7111. Fax: +44 (0)20 8996 7048. Email: [email protected]

Subscribing members of BSI are kept up to date with standards developments
and receive substantial discounts on the purchase price of standards. For details
of these and other benefits contact Membership Administration.
Tel: +44 (0)20 8996 7002. Fax: +44 (0)20 8996 7001.
Email: [email protected]

Information regarding online access to British Standards via British Standards
Online can be found at http://www.bsi-global.com/bsonline.

Further information about BSI is available on the BSI website at
http://www.bsi-global.com.

Copyright

Copyright subsists in all BSI publications. BSI also holds the copyright, in the
UK, of the publications of the international standardization bodies. Except as
permitted under the Copyright, Designs and Patents Act 1988 no extract may be
reproduced, stored in a retrieval system or transmitted in any form or by any
means – electronic, photocopying, recording or otherwise – without prior written
permission from BSI.

This does not preclude the free use, in the course of implementing the standard,
of necessary details such as symbols, and size, type or grade designations. If these
details are to be used for any other purpose than implementation then the prior
written permission of BSI must be obtained.

Details and advice can be obtained from the Copyright & Licensing Manager.
Tel: +44 (0)20 8996 7070. Fax: +44 (0)20 8996 7553.
Email: [email protected]

Copyright British Standards Institution
Reproduced by IHS under license with BSI - Uncontrolled Copy Licensee=University of Hong Kong/5910986001

Not for Resale, 08/08/2005 20:45:40 MDTNo reproduction or networking permitted without license from IHS

--``,,,,,,,,,,,,,``,,,,`,,``,,`-`-`,,`,,`,`,,`---

Similer Documents