1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 50441-1:2012Cables for indoor residentialtelecommunicationinstallations -Part 1: Unscreened cables Grade 1BS EN 50441-1:2012 BRITISH STANDARDNational forewordThis British S
2、tandard is the UK implementation of EN 50441-1:2012.It supersedes BS EN 50441-1:2006 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee EPL/46, Cables, wires and waveguides, radio frequencyconnectors and accessories for communication and signalling.A list
3、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. The British Standards Institution 2012. Published by BSI StandardsLimite
4、d 2012ISBN 978 0 580 70377 5ICS 33.120.10Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 May 2012.Amendments issued since publicationDate Text affectedBS EN 504
5、41-1:2012EUROPEAN STANDARD EN 50441-1 NORME EUROPENNE EUROPISCHE NORM March 2012 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Management Centre: Avenue Marnix 17, B - 1000 Brussels 201
6、2 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 50441-1:2012 E ICS 33.120.10 Supersedes EN 50441-1:2006English version Cables for indoor residential telecommunication installations - Part 1: Unscreened cables - Grade 1 Cbles pou
7、r les installations rsidentielles de tlcommunications en intrieur - Partie 1: Cbles non crants - Classe 1 Innenkabel fr Telekommunikationseinrichtungen im Wohnbereich - Teil 1: Ungeschirmte Innenkabel - Klasse 1 This European Standard was approved by CENELEC on 2012-01-23. CENELEC members are bound
8、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 CEN-
9、CENELEC Management Centre 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 CEN-CENELEC Management Ce
10、ntre has the same status as the official versions. CENELEC members 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, Mal
11、ta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 50441-1:2012EN 50441-1:2012 2 Contents Foreword . 3 1 Scope . 42 Normative references . 43 Quality control . 54 Cable construction . 54.1 Conductors . 54.2 Ins
12、ulation 54.3 Cable element 64.4 Screening of the cable element 64.5 Cabling 64.6 Spare pairs . 64.7 Colour code 64.8 Sheath 64.9 Ripcord . 64.10 Overall diameter . 64.11 Identification . 74.12 Delivery length 75 Mechanical requirements . 85.1 Conductor . 85.2 Insulation 85.3 Sheath 85.4 Finished cab
13、le 86 Environmental and climatic requirements .106.1 Insulation 106.2 Sheath 106.3 Fire behaviour .117 Electrical requirements 117.1 General .117.2 Conductor resistance 117.3 Dielectric strength and capacitance .117.4 Insulation resistance .117.5 High frequency characteristics .117.6 Electromagnetic
14、 behaviour .147.7 Unbalance attenuation 147.8 Environmental and safety aspects .14Bibliography 15Figures Figure 1 Test fixture 9Figure 2 Installation test system . 10Tables Table 1 Recommended outer diameter of the sheath 7Table 2 Cable impedance. 11Table 3 Return loss measurement . 12Table 4 Maximu
15、m cable attenuation 12Table 5 Minimum NEXT and PSNEXT . 13Table 6 Minimum ELFEXT and PSELFEXT . 13BS EN 50441-1:2012 3 EN 50441-1:2012 Foreword This document (EN 50441-1:2012) has been prepared by SC 46XC, “Multicore, multipair and quad data communication cables“, of CLC/TC 46X, “Communication cable
16、s“. The following dates are fixed: latest date by which this document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2013-01-23 latest date by which the national standards conflicting with this document have to be withdrawn (dow) 2015
17、-01-23 This document supersedes EN 50441-1:2006. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. This standard covers the Principle El
18、ements of the Safety Objectives for Electrical Equipment Designed for Use within Certain Voltage Limits (LVD - 2006/95/EC). _ BS EN 50441-1:2012EN 50441-1:2012 4 1 Scope This European Standard specifies the constructional details and performances requirements for cables for indoor residential cablin
19、g systems characterized up to 100 MHz. Cables in this European Standard are based on the common design rules specified in EN 50290-2-1 and are specifically intended for supporting ICT and BCT applications (telephone, computer and TV services) as specified in EN 50173-4. The cables covered in this Eu
20、ropean Standard are intended to operate with voltages and currents normally encountered in communications systems. These cables are not intended to be used in conjunction with low impedance sources, for example, the electrical power supply of public utility mains. Cables covered in this European Sta
21、ndard may however be subjected to voltages of not more than 300 V a.c. or 450 V d.c. and comply with the requirements of the Low Voltage Directive. The maximum current rating per conductor is 3 A/mm unless otherwise specified in the relevant detail specification. 2 Normative references The following
22、 documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 50173-1 Informati
23、on technology Generic cabling systems - Part 1: General requirements EN 50289-1-2 Communication cables Specifications for test methods - Part 1-2: Electrical test methods DC resistance EN 50289-1-3 Communication cables Specifications for test methods Part 1-3: Electrical test methods Dielectric stre
24、ngth EN 50289-1-4 Communication cables Specifications for test methods Part 1-4: Electrical test methods Insulation resistance EN 50289-1-6 Communication cables Specifications for test methods Part 1-6: Electrical test methods Electromagnetic performance EN 50289-1-7 Communication cables Specificati
25、ons for test methods Part 1-7: Electrical test methods Velocity of propagation EN 50289-1-8 Communication cables Specifications for test methods Part 1-8: Electrical test methods Attenuation EN 50289-1-9 Communication cables Specifications for test methods Part 1-9: Electrical test methods Unbalance
26、 attenuation (longitudinal conversion loss, longitudinal conversion transfer loss) EN 50289-1-10 Communication cables Specifications for test methods Part 1-10: Electrical test methods Crosstalk EN 50289-1-11 Communication cables Specifications for test methods Part 1-11: Electrical test methods Cha
27、racteristic impedance, input impedance, return loss EN 50289-3-7 Communication cables Specifications for test methods Part 3-7: Mechanical test methods Abrasion resistance of the cable sheath EN 50289-3-9:2001 Communication cables Specifications for test methods Part 3-9: Mechanical test methods Ben
28、ding tests BS EN 50441-1:2012 5 EN 50441-1:2012 EN 50289-3-17 Communication cables Specifications for test methods Part 3-17: Mechanical test methods Adhesion of dielectric and sheath EN 50290-2-1 Communication cables Part 2-1: Common design rules and construction EN 50290-2-22 Communication cables
29、Part 2-22: Common design rules and construction PVC sheathing compounds EN 50290-2-23 Communication cables Part 2-23: Common design rules and construction PE insulation EN 50290-2-27 Communication cables Part 2-27: Common design rules and construction Halogen free flame retardant thermoplastic sheat
30、hing compounds 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 Procedure for 1 kW pre-mixed flame (IEC 60332-1-2) EN 60794-1-2 Optical fibre cables Part 1-2: Generic specification Basic o
31、ptical cable test procedures (IEC 60794-1-2) EN 60811-1-1 Insulating and sheathing materials of electric and optical cables Common test methods Part 1-1: General application Measurement of thickness and overall dimensions Tests for determining the mechanical properties (IEC 60811-1-1) HD 402 S2:1984
32、 Standard colours for insulation for low-frequency cables and wires (IEC 60304:1982) 3 Quality control Not applicable. 4 Cable construction 4.1 Conductors 4.1.1 Conductor construction Conductor construction shall be in accordance with EN 50290-2-1. NOTE Constructions with Copper Clad conductors do n
33、ot meet the requirements. 4.1.2 Conductor type The conductor shall be a solid wire of annealed copper with a minimum diameter of 0,5 mm in accordance with EN 50290-2-1 NOTE Diameters 0,65 mm may cause problems with connecting hardware. Diameters larger than 0,8 mm could cause connectorisation proble
34、ms. 4.2 Insulation 4.2.1 Insulation material The insulation shall be polyethylene in accordance with EN 50290-2-23. Other materials may be used providing that they do not affect compliance with this European Standard and any local regulations (e.g. Environmental Directives). 4.2.2 Thickness of the i
35、nsulation The thickness of the insulation shall be compatible with the electrical requirements specified in Clause 7. BS EN 50441-1:2012EN 50441-1:2012 6 4.2.3 Colour of the insulated conductor The colour of insulation shall be a reasonable match to HD 402 S2:1984. 4.3 Cable element The cable elemen
36、t shall be a pair or a quad. The lay length shall be in accordance with EN 50290-2-1. 4.4 Screening of the cable element Not applicable. 4.5 Cabling The cables shall have at least 4 pairs or 2 quads. The core of the cable shall comply with the requirements specified in 7.4 and 7.5. 4.6 Spare pairs N
37、ot applicable. 4.7 Colour code The colour code shall be as specified in the corresponding detail specification and should be compatible with local practices and international recognised codes. The colours shall be easily identifiable. 4.8 Sheath 4.8.1 Sheath material The sheath shall be of a thermop
38、lastic compound according to EN 50290-2-27 or EN 50290-2-22. 4.8.2 Sheath construction Unless otherwise specified the colour of the sheath shall be cream. The sheath shall be applied to fit closely over the core of the cable but it shall be possible to strip the cable sheath over 20 cm without remov
39、ing foils or damaging conductors. The sheath shall be cylindrical and its external aspect shall not reveal the core profile. The ovality of the finished cable shall be not greater than 0,16. 4.8.3 Thickness of the sheath The minimum thickness of the sheath shall be equal to or greater than 0,5 mm wh
40、en measured in accordance with EN 60811-1-1. 4.9 Ripcord A ripcord shall be laid under the sheath. 4.10 Overall diameter For installation practices and connectorisation the recommended outer diameter is given in Table 1. BS EN 50441-1:2012 7 EN 50441-1:2012 Table 1 Recommended outer diameter of the
41、sheath Number of pairs Maximum outer diameter Minimum thickness of the sheath mm mm4 6,8 0,50NOTE In case of installation by stapling other diameters may be required (see 5.4.7.3). 4.11 Identification 4.11.1 General Identification shall be provided either by sheath marking or by identification threa
42、d. 4.11.2 Sheath marking Unless otherwise specified by the customer the cable shall be marked as follows. Sheath marking shall be either by non-degradable print or embossing and shall contain the following minimum information: designation of cable including the numbering of the relevant standard; re
43、action to fire classification (ffs); name of supplier; metric marking. 4.11.3 Identification thread Where a cable is not identified by sheath marking there shall be an alternative means of identification (e.g. identification thread laid under the sheath, identification tape, printing on the core wra
44、pping, etc.). Identification shall contain the following minimum information: designation of cable including the numbering of the relevant standard; reaction to fire classification (under the CPD) (ffs); name of supplier. 4.12 Delivery length 4.12.1 Labelling Unless otherwise specified in the detail
45、 specification drums or coils shall be provided with a label with a non-degradable print containing the following minimum information: designation of cable including the numbering of the relevant standard; reaction to fire classification (under the CPD) (ffs); name of supplier; batch part number; le
46、ngth of cable. EXAMPLE EN 50XXX Class C 03/00 543 m. BS EN 50441-1:2012EN 50441-1:2012 8 4.12.2 End caps The ends of the delivery length of cable shall be adequately capped to avoid water ingress. 5 Mechanical requirements 5.1 Conductor The conductor shall be in accordance with EN 50290-2-1. 5.2 Ins
47、ulation The insulation shall be in accordance with EN 50290-2-1. 5.3 Sheath The sheath shall be in accordance with EN 50290-2-27 or EN 50290-2-22. 5.4 Finished cable 5.4.1 Sheath integrity Sheath integrity shall be checked during manufacturing by spark testing in accordance with EN 50289-1-3. 5.4.2
48、Static bending radius The purpose of this test is to demonstrate the ability of the cable to be installed with permanent bending. The test is performed at 2 m from the free end of a 100 m sample. The test method is given in EN 50289-3-9:2001. The radius of the mandrel shall be five times the nominal outer diameter. The number of turns shall be one. The number of cycles shall be five. During and after the test, the cable shall not show any visible mechanical defect. The return loss, transfer impedance (only after the
