1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 50525-3-31:2011Electric cables Low voltage energy cables of rated voltages up to and including 450/750 V (U0/U) -Part 3-31: Cables with special fire performance Single core
2、 non-sheathed cables with halogen-free thermoplastic insulation, and low emission of smokeBS EN 50525-3-31:2011 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN50525-3-31:2011.The UK participation in its preparation was entrusted to TechnicalCommittee GEL/20/17,
3、Electric Cables - Low voltage.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2011ISBN 978 0 580 64377 4ICS 2
4、9.060.20Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 September 2011.Amendments issued since publicationDate Text affectedBS EN 50525-3-31:2011 BRITISH STANDA
5、RDNational forewordThis British Standard is the UK implementation of EN50525-3-31:2011.The UK participation in its preparation was entrusted to TechnicalCommittee GEL/20/17, Electric Cables - Low voltage.A list of organizations represented on this committee can beobtained on request to its secretary
6、.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2011ISBN 978 0 580 64377 4ICS 29.060.20Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published un
7、der the authority of theStandards Policy and Strategy Committee on 30 September 2011.Amendments issued since publicationDate Text affectedThis British Standard is the UK implementation of EN 50525-3-31:2011.In the UK, the BS EN 50525 series of standards nullontain nullomplenullsnullpersession detail
8、s. The tanullle nullelonull nullest snullmmarinulles the relationship nulletnulleen these standards:Part 1 together with Supersedes2-null1 BS null3null-null:1nullnullnull2-null1, 2-null2 BS null00null: 200null2-11 nullin partnull, 2-12, 2-21 nullin partnull, 2-null1 BS null500:20002-11 nullin partnu
9、ll, 2-21 nullin partnull, 2-51 nullin partnull, 2-null3, 3-21 BS nullnull1null:20012-31, 2-51 nullin partnull BS 6004:20003-null1 BS 7211:19982-22, 2-null2, 2-null2, 3-11, 3-31 NoneNOTE All British Standards will remain current until they are withdrawn on 31 December 2012. British Standards in bold
10、are only partially supersedednull and new editions onull BS null00null and BS null211 will be introduced on 1 nullanuary 2013.BS EN 50525-3-31:2011EUROPEAN STANDARD EN 50525-3-31 NORME EUROPENNE EUROPISCHE NORM May 2011 CENELEC European Committee for Electrotechnical Standardization Comit Europen de
11、 Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Management Centre: Avenue Marnix 17, B - 1000 Brussels 2011 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 50525-3-31:2011 E ICS 29.060.20 Supersede
12、s HD 21.15 S1:2006English version Electric cables - Low voltage energy cables of rated voltages up to and including 450/750 V (U0/U) - Part 3-31: Cables with special fire performance - Single core non-sheathed cables with halogen-free thermoplastic insulation, and low emission of smoke Cbles lectriq
13、ues - Cbles dnergie basse tension de tension assigne au plus gale 450/750 V (U0/U) - Partie 3-31: Cbles performances spciales au feu - Conducteurs isols en matriau thermoplastique sans halogne, faible dgagement de fume Kabel und Leitungen - Starkstromleitungen mit Nennspannungen bis 450/750 V (U0/U)
14、 - Teil 3-31: Starkstromleitungen mit verbessertem Verhalten im Brandfall - Halogenfreie, raucharme Ader- und Verdrahtungsleitungen mit thermoplastischer Isolierung This European Standard was approved by CENELEC on 2011-01-17. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulat
15、ions 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
16、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
17、are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, S
18、lovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 50525-3-31:2011EN 50525-3-31:2011 - 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 5
19、0525-3-31 on 2011-01-17. This document, which is one of a multipart series, supersedes HD 21.15 S1:2006. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such
20、 patent rights. 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) 2012-01-17 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2014-
21、01-17 _ BS EN 50525-3-31:2011- 3 - EN 50525-3-31:2011 Contents Page 1 Scope 42 Normative references . 43 Terms and definitions . 54 General purpose cables . 54.1 Cables for fixed wiring H07Z1-U and H07Z1-R (Type 1 and Type 2) . 54.2 Cables for fixed wiring H07Z1-K (Type 1 and Type 2). 64.3 Cables fo
22、r internal wiring H05Z1-U and H05Z1-R . 74.4 Cables for internal wiring H05Z1-K . 7Annex A (normative) Tests for cables to EN 50525-3-31 9Annex B (normative) General data . 10Bibliography . 13Tables Table A.1 9Table B.1 10Table B.2 11Table B.3 11Table B.4 12BS EN 50525-3-31:2011EN 50525-3-31:2011 -
23、4 - 1 Scope EN 50525-3-31 applies to non-sheathed single core cables insulated with halogen-free thermoplastic compound and having low emission of smoke and corrosive gases when exposed to fire. NOTE 1 Low emission of smoke is checked in accordance with EN 61034-2. Low emission of corrosive gases is
24、 checked as part of the check for absence of halogens (see Annex B of EN 50525-1). The cables are of rated voltages U0/U up to and including 450/750 V. NOTE 2 Cables rated 450/750 V may be used at 600/1 000 V when this cable is used in fixed installations with mechanical protection, within switchgea
25、r and control gear - see HD 516. For cables rated at 450/750 V there are two types, Type 1 and Type 2. Type 2 cables are required to meet a more severe test for resistance to flame propagation (EN 60332-3-24) than Type 1, and have particular suitability for installation in bunches (see also HD 516).
26、 The cables are intended for fixed wiring applications. The maximum conductor operating temperature for each of the cables in this standard is 70 C. NOTE 3 HD 516 contains extensive guidance on the safe use of cables in this standard. This EN 50525-3-31 should be read in conjunction with EN 50525-1,
27、 which specifies general requirements. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendmen
28、ts) applies. NOTE One or more references to the standards below are in respect of a specific sub-division of that standard, for instance a clause, a table, a class or a type. Cross-references to these standards are undated and, at all times, the latest version applies. EN 50363-7 Insulating, sheathi
29、ng and covering materials for low voltage energy cables - Part 7: Halogen-free, thermoplastic insulating compounds EN 50395 Electrical test methods for low voltage energy cables EN 50396 Non electrical test methods for low voltage energy cables EN 50525-1 Electric cables - Low voltage energy cables
30、of rated voltages up to and including 450/750 V (U0/U) - Part 1: General requirements EN 60228 Conductors of insulated cables (IEC 60228) EN 60332-1-2 Tests on electric and optical fibre cables under fire conditions - Part 1-2: Test for vertical flame propagation for a single insulated wire or cable
31、 - Procedure for 1 kW pre-mixed flame (IEC 60332-1-2) EN 60332-3-24 Tests on electric and optical fibre cables under fire conditions - Part 3-24: Test for vertical flame spread of vertically-mounted bunched wires or cables - Category C (IEC 60332-3-24) EN 60811-1-4 Insulating and sheathing materials
32、 of electric and optical cables - Common test methods - Part 1-4: General application - Tests at low temperature (IEC 60811-1-4) EN 61034-2 Measurement of smoke density of cables burning under defined conditions - Part 2: Test procedure and requirements (IEC 61034-2) BS EN 50525-3-31:2011- 5 - EN 50
33、525-3-31:2011 3 Terms and definitions For the purposes of this document the terms and definitions given in Clause 3 of EN 50525-1 apply, together with the following. 3.1 type 1 cable cable meeting the requirements for resistance to flame spread as given in EN 60332-1-2 3.2 type 2 cable cable meeting
34、 the requirements for resistance to flame spread as given in EN 60332-1-2 and additionally as given in EN 60332-3-24 4 General purpose cables 4.1 Cables for fixed wiring H07Z1-U and H07Z1-R (Type 1 and Type 2) 4.1.1 Construction 4.1.1.1 Conductor The conductor shall be class 1 or class 2, according
35、to EN 60228. 4.1.1.2 Sizes of cable The sizes of cable shall be: class 1 1,5 mm to 10 mm; class 2 1,5 mm to 630 mm. 4.1.1.3 Insulation The insulation shall be thermoplastic compound of Type TI 7 to EN 50363-7. 4.1.1.4 Marking The cable shall be marked with the CENELEC code H07Z1-U for cables with cl
36、ass 1 conductor, or H07Z1-R for cables with class 2 conductor. The marking shall comply with Clause 6 of EN 50525-1. In addition, in order to differentiate Type 1 cable from Type 2 cable, a further marking shall be applied as follows: for Type 1 cables the marking shall be TYPE 1; for Type 2 cables
37、the marking shall be TYPE 2. The additional marking shall be placed immediately after the marking of the code and shall comply with Clause 6 of EN 50525-1. NOTE Type 2 cables may have an additional voluntary marking to satisfy national requirements. Such markings should not conflict with any of the
38、markings required by the standard. BS EN 50525-3-31:2011EN 50525-3-31:2011 - 6 - 4.1.2 Requirements Each cable shall comply with the appropriate requirements given in EN 50525-1, and the particular requirements of this Part. Testing shall be in accordance with Annex A, and the relevant tests indicat
39、ed in column 6. The dimensions of the cables shall conform to Table B.1 for the relevant size. When tested in accordance with the method and procedure given in EN 61034-2, all sizes of cable shall exceed 60 % light transmittance throughout the test. 4.2 Cables for fixed wiring H07Z1-K (Type 1 and Ty
40、pe 2) 4.2.1 Construction 4.2.1.1 Conductor The conductor shall be class 5, according to EN 60228. 4.2.1.2 Sizes of cable The sizes of cable shall be 1,5 mm2to 240 mm2. 4.2.1.3 Insulation The insulation shall be thermoplastic compound of Type TI 7 to EN 50363-7. 4.2.1.4 Marking The cable shall be mar
41、ked with the CENELEC code H07Z1-K. The marking shall comply with Clause 6 of EN 50525-1. In addition, in order to differentiate Type 1 cable from Type 2 cable, a further marking shall be applied as follows: for Type 1 cables the marking shall be TYPE 1; for Type 2 cables the marking shall be TYPE 2.
42、 The additional marking shall be placed immediately after the marking of the code and shall comply with Clause 6 of EN 50525-1. NOTE Type 2 cables may have an additional voluntary marking to satisfy national requirements. Such markings should not conflict with any of the markings required by the sta
43、ndard. 4.2.2 Requirements Each cable shall comply with the appropriate requirements given in EN 50525-1, and the particular requirements of this Part. Testing shall be in accordance with Annex A, and the relevant tests indicated in column 7. The dimensions of the cables shall conform to Table B.2 fo
44、r the relevant size. When tested in accordance with the method and procedure given in EN 61034-2, all sizes of cable shall exceed 60 % light transmittance throughout the test. BS EN 50525-3-31:2011- 7 - EN 50525-3-31:2011 4.3 Cables for internal wiring H05Z1-U and H05Z1-R 4.3.1 Construction 4.3.1.1
45、Conductor The conductor shall be class 1 or class 2, according to EN 60228. 4.3.1.2 Sizes of cable The sizes of cable shall be: class 1 0,5 mm2to 1,0 mm2;class 2 0,5 mm2to 1,0 mm2.4.3.1.3 Insulation The insulation shall be thermoplastic compound of Type TI 7 to EN 50363-7. 4.3.1.4 Marking The cable
46、shall be marked with the CENELEC code H05Z1-U for cables with class 1 conductor, or H05Z1-R for cables with class 2 conductor. The marking shall comply with Clause 6 of EN 50525-1. 4.3.2 Requirements Each cable shall comply with the appropriate requirements given in EN 50525-1, and the particular re
47、quirements of this Part. Testing shall be in accordance with Annex A, and the relevant tests indicated in column 8. The dimensions of the cables shall conform to Table B.3 for the relevant size. When tested in accordance with the method and procedure given in EN 61034-2, all sizes of cable shall exc
48、eed 60 % light transmittance throughout the test. 4.4 Cables for internal wiring H05Z1-K 4.4.1 Construction 4.4.1.1 Conductor The conductor shall be class 5, according to EN 60228. 4.4.1.2 Sizes of cable The sizes of cable shall be from 0,5 mm2to 1,0 mm2.4.4.1.3 Insulation The insulation shall be th
49、ermoplastic compound of Type TI 7 to EN 50363-7. 4.4.1.4 Marking The cable shall be marked with the CENELEC code H05Z1-K. The marking shall comply with Clause 6 of EN 50525-1. BS EN 50525-3-31:2011EN 50525-3-31:2011 - 8 - 4.4.2 Requirements Each cable shall comply with the appropriate requirements given in EN 50525-1, and the particular requirements of this Part. Testing shall be in accordance with Annex A, and the relevant tests indicated in column
