BRITISH STANDARD BS EN 50363 1 2005 Insulating, sheathing and covering materials for low voltage energy cables — Part 1 Cross linked elastomeric insulating compounds The European Standard EN 50363 1 2[.]
Trang 1BRITISH STANDARD BS EN
50363-1:2005
Insulating, sheathing
and covering materials
for low voltage energy
cables —
Part 1: Cross-linked elastomeric
insulating compounds
The European Standard EN 50363-1:2005 has the status of a
British Standard
ICS 29.035.20
12&23<,1*:,7+287%6,3(50,66,21(;&(37$63(50,77('%<&23<5,*+7/$:
Trang 2BS EN 50363-1:2005
This British Standard was
published under the authority
of the Standards Policy and
Strategy Committee
on 3 February 2006
© BSI 3 February 2006
ISBN 0 580 47398 8
National foreword
This British Standard is the official English language version of
EN 50363-1:2005 It supersedes BS 7655-1.1:2000 which is withdrawn The UK participation in its preparation was entrusted by Technical Committee GEL/20, Electric cables, to Subcommittee GEL/20/17, LV cables, which has the responsibility to:
A list of organizations represented on this subcommittee can be obtained on request to its secretary
Cross-references
The British Standards which implement international or European
publications referred to in this document may be found in the BSI Catalogue
under the section entitled “International Standards Correspondence Index”, or
by using the “Search” facility of the BSI Electronic Catalogue or of British
Standards Online
This publication does not purport to include all the necessary provisions of a contract Users are responsible for its correct application
Compliance with a British Standard does not of itself confer immunity from legal obligations.
— aid enquirers to understand the text;
— present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed;
— monitor related international and European developments and promulgate them in the UK
Summary of pages
This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 7 and a back cover
The BSI copyright notice displayed in this document indicates when the document was last issued
Amendments issued since publication
Trang 3EUROPEAN STANDARD EN 50363-1
NORME EUROPÉENNE
EUROPÄISCHE NORM November 2005
CENELEC
European Committee for Electrotechnical Standardization Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, B - 1050 Brussels
© 2005 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members
Ref No EN 50363-1:2005 E
ICS 29.035.20
English version
Insulating, sheathing and covering materials
for low voltage energy cables Part 1: Cross-linked elastomeric insulating compounds
Matériaux pour enveloppe isolante,
gainage et revêtement pour les câbles
d'énergie basse tension
Partie 1: Mélanges élastomères réticulés
pour enveloppe isolante
Isolier-, Mantel- und Umhüllungswerkstoffe für Niederspannungskabel und -leitungen Teil 1: Vernetzte, elastomere
Isoliermischungen
This European Standard was approved by CENELEC on 2005-11-01 CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member
This European Standard exists in three official versions (English, French, German) A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions
CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom
Trang 4EN 50363-1:2005 – 2 –
Foreword
This European Standard was prepared by the Technical Committee CENELEC TC 20, Electric cables
The text of the draft was submitted to the formal vote and was approved by CENELEC as EN 50363-1
on 2005-11-01
EN 50363 (in all its parts) supersedes the equivalent information at present in HD 21.1 S4,
HD 21.14 S1, HD 22.1 S4, HD 22.10 S1, HD 22.14 S2 and prHD 21.15 S1 The existing information in these HDs will be deleted at the next maintenance review
EN 50363-1 should be read in conjunction with EN 50363-0
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical national standard or by endorsement (dop) 2006-11-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2007-11-01
Trang 5– 3 – EN 50363-1:2005
Contents
1 Scope 4
2 Normative references 4
3 Definitions 4
4 Properties 4
Table 1 – Types of cross-linked elastomeric insulating compound 4
Table 2 – Requirements for the tests for crosslinked elastomeric insulating compounds 5
Trang 6EN 50363-1:2005 – 4 –
1 Scope
This part of EN 50363 specifies the requirements for the cross-linked elastomeric insulating compounds given in Table 1 The relevant test methods are given in EN 60811 series and EN 50396
NOTE This part of EN 50363 is to be read in conjunction with EN 50363-0
Table 1 – Types of cross-linked elastomeric insulating compound Type Maximum material
operating temperature
°C
General application
EI 2 180 Ordinary duty silicone rubber (SiR)
EI 3 110 Ordinary duty EVA rubber or equivalent
EI 4 60 Ordinary duty ethylene propylene rubber
EI 6 90 Ordinary duty ethylene-propylene rubber or equivalent synthetic
elastomer for cables requiring handling down to –40 °C
EI 7 90 Ordinary duty ethylene propylene rubber or equivalent synthetic
elastomer
For the purposes of this part of EN 50363, the requirements of EN 50363-0, Clause 2, apply with
regard to normative references
3 Definitions
For the purposes of this part of EN 50363, the definitions given in EN 50363-0, Clause 3, apply
4 Properties
Each compound shall meet the particular requirements listed in Table 2, when using the test methods referenced in columns 4 and 5
NOTE For cross-references to the latest editions of the test method standards see Table 2 of EN 50363-0
Trang 7– 5 – EN 50363-1:2005
Table 2 – Requirements for the tests for crosslinked elastomeric insulating compounds
described in
EN 60811 b
Type of compound
1 Mechanical
properties
1.1 Properties before
ageing
1-1 9.1
1.1.1 Values to be
obtained for the tensile strength:
- median, min N/mm² 5,0 6,5 5,0 5,0 5,0 1.1.2 Values to be
obtained for the elongation at break:
- median, min % 150 200 200 200 200 1.2 Properties after
ageing in air oven
1-2 8.1 c c d d d
1.2.1 Ageing
conditions:
- temperature °C 200 ± 3 150 ± 2 100 ± 2 135 ± 2 135 ± 2
- duration of
treatment
h 10 x 24 10 x 24 7 x 24 7 x 24 7 x 24
1.2.2 Value to be
obtained for the tensile strength:
- median, min N/mm² 4,0 - 4,2 5,0 5,0
- variation, max % - ± 30 ± 25 ± 30 ± 30
1.2.3 Values to be
obtained for the elongation at break:
- median, min % 120 - 200 - -
- variation, max % - ± 30 ± 25 ± 30 ± 30
1.3 Properties after
ageing in air bomb
1-2 8.2
1.3.1 Ageing
conditions:
- temperature °C - 150 ± 2 127 ± 2 127 ± 2 127 ± 2
- duration of
treatment
h - 7 x 24 40 40 40
1.3.2 Values to be
obtained for the tensile strength:
- median, min N/mm² - 6,0 - - -
- variation, max % - - ± 30 ± 30 ± 30
Trang 8EN 50363-1:2005 – 6 –
Table 2 – Requirements for the tests for crosslinked elastomeric insulating compounds (continued)
described in
EN 60811 b
Type of compound
1.3.3 Value to be
obtained for the elongation at break:
- variation, max % - - 30 e ± 30 ± 30 ± 30
2.1 Conditions of
treatment:
- temperature °C 250 ± 3 200 ± 3 200 ± 3 250 ± 3 250 ± 3
- time under load min 15 15 15 15 15
- mechanical
stress
N/cm² 20 20 20 20 20
2.2 Test
requirements:
- max elongation under load
% 100 100 100 100 100
- max elongation after unloading
% 25 25 25 25 25
high temperature
3-1 8.1 3.1 Test conditions:
- force exerted by the blade f
N 3-1 8.1.4 - g - - -
- duration of
heating under load
h 3-1 8.1.5 - 0,5 - - -
- temperature °C - 150 ± 2 - - - 3.2 Result to be
obtained:
- median of the depth of indentation, maximum
% - 50 - - -
low temperature
1-4 8.1 4.1 Test conditions:
- temperature °C - 35 ± 2 - 15 ± 2 - 35 ± 2 - 50 ± 3 - 35 ± 2
- period of application of low temperature
h 1-4 8.1.4 g g g g g
4.2 Result to be
obtained
Trang 9– 7 – EN 50363-1:2005
Table 2 – Requirements for the tests for crosslinked elastomeric insulating compounds (continued)
described in
EN 60811 b
Type of compound
at low temperature
1-4 8.3
5.1 Test conditions:
- temperature °C - 35 ± 2 - 15 ± 2 - 35 ± 2 - 50 ± 3 - 35 ± 2 period of
application of low temperature
h 1-4 8.3.4 g g g g g
5.2 Result to be
obtained:
- elongation
without break, min
% 30 30 30 30 30
6 Ozone
resistance test
6.1 Method A 2-1 8
- test temperature °C - - 25 ± 2 25 ± 2 25 ± 2
- test duration h - - 24 24 24
- ozone
concentration (by volume)
% - - (250 to
300) x
10-4
(250 to 300) x
10-4
(250 to 300) x
10-4 6.2 Method B EN
50396
8.1.3
- test temperature °C - - 40 ± 2 40 ± 2 40 ± 2
- test duration h - - 72 72 72
- ozone
concentration (by volume)
% - - (200 ±
50) x
10-6
(200 ±
50) x
10-6
(200 ±
50) x
10-6 6.3 Result to be
obtained
- - h h h
a
Information on other tests is given in EN 50363-0, Clause 5
b
Unless stated otherwise
c
Ageing of Type EI 2 and EI 3 shall be carried out in accordance with subclause 8.1.3.1 of EN 60811-1-2.
d
Ageing of Type EI 4, EI 6 and EI 7 shall be carried out in accordance with subclause 8.1.3.2a) of EN 60811-1-2 Where it is not possible, due to adhesion, to remove the insulation after ageing, the test shall be carried out according to subclause 8.1.3.3b) of EN 60811-1-2
e
No limit for the positive tolerance
f For EI 3 a value of k = 1,0 shall be used to calculate the force
g
See test method referred to in columns 4 and 5
h
No cracks
Trang 10BS EN
50363-1:2005
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: orders@bsi-global.com 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: info@bsi-global.com 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: membership@bsi-global.com
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: copyright@bsi-global.com