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1、BRITISH STANDARD BS EN 50441-3:2006 Cables for indoor residential telecommunication installations Part 3: Screened cables Grade 3 The European Standard EN 50144-3:2006 has the status of a British Standard ICS 33.120.10 ? Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 08:45:12 GMT+00:00 2006,
2、 Uncontrolled Copy, (c) BSI BS EN 50441-3:2006 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 29 September 2006 BSI 2006 ISBN 0 580 49120 X National foreword This British Standard was published by BSI. It is the UK implementation of EN 50441
3、-3:2006. The UK participation in its preparation was entrusted to Technical Committee EPL/46, Cables, wires and waveguides, radio frequency connectors and accessories for communication and signalling. A list of organizations represented on EPL/46 can be obtained on request to its secretary. This pub
4、lication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun s
5、heffieldun, na, Mon Nov 06 08:45:12 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD EN 50441-3 NORME EUROPENNE EUROPISCHE NORM June 2006 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnisc
6、he Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2006 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 50441-3:2006 E ICS 33.120.10 English version Cables for indoor residential telecommunication installations
7、Part 3: Screened cables - Grade 3 Cbles pour les installations rsidentielles de tlcommunications en intrieur Partie 3: Cbles crants - Classe 3 Innenkabel fr Telekommunikationseinrichtungen im Wohnbereich Teil 3: Geschirmte Innenkabel - Klasse 3 This European Standard was approved by CENELEC on 2005-
8、12-06. 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 ob
9、tained 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 Ce
10、ntral Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, th
11、e Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 08:45:12 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 50441-3:2006 - 2 - Foreword This European Standard was prepared by SC
12、 46XC, Multicore, Multipair and Quad Data communication cables, of Technical Committee CENELEC TC 46X, Communication cables. The text of the draft was submitted to the Unique Acceptance Procedure and was approved by CENELEC as EN 50441-3 on 2005-12-06. The following dates were fixed: latest date by
13、which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2007-01-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2009-01-01 _ Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06
14、08:45:12 GMT+00:00 2006, Uncontrolled Copy, (c) BSI - 3 - EN 50441-3:2006 Contents 1 Scope 5 2 Normative references 5 3 Quality control 6 4 Cable construction 7 4.1 Conductors. 7 4.1.1 Conductor construction. 7 4.1.2 Conductor Type . 7 4.2 Insulation . 7 4.2.1 Insulation material 7 4.2.2 Thickness o
15、f the insulation 7 4.2.3 Colour of the insulated conductor 7 4.3 Cable element 7 4.4 Screening of the cable element 7 4.5 Cabling 7 4.6 Spare pairs 8 4.7 Colour code 8 4.8 Screening and wrapping of the core . 8 4.8.1 Core wrapping . 8 4.8.2 Screen 8 4.9 Sheath. 8 4.9.1 Sheath material 8 4.9.2 Sheath
16、 construction 8 4.9.3 Thickness of the sheath 8 4.10 Ripcord 9 4.11 Overall diameter . 9 4.12 Identification. 9 4.12.1 Sheath marking 9 4.12.2 Identification thread 9 4.13 Delivery length 10 4.13.1 Labelling 10 4.13.2 End caps. 10 5 Mechanical requirements. 10 5.1 Conductor 10 5.2 Insulation . 10 5.
17、3 Sheath. 10 5.4 Finished cable 10 5.4.1 Sheath integrity 10 5.4.2 Static bending radius 10 5.4.3 Abrasion resistance of the sheath 11 5.4.4 Kink test 11 5.4.5 Cut-through test . 11 5.4.6 Adhesion of the sheath. 11 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 08:45:12 GMT+00:00 2006, Uncon
18、trolled Copy, (c) BSI EN 50441-3:2006 - 4 - 5.4.7 Installation capability. . 11 6 Environmental and climatic requirements 14 6.1 Insulation . 14 6.2 Sheath. 14 6.3 Fire behaviour 14 7 Electrical requirements 14 7.1 Conductor resistance 14 7.2 Dielectric strength. 14 7.3 Insulation resistance . 14 7.
19、4 High frequency characteristics . 14 7.4.1 Impedance. 15 7.4.2 Return loss 15 7.4.3 Attenuation 15 7.4.4 Crosstalk. 16 7.5 Electromagnetic behaviour 16 7.5.1 Transfer impedance 16 7.5.2 Coupling attenuation. 17 7.6 Unbalance attenuation 17 7.7 Environmental and safety aspects 17 Figure 1 - Test fix
20、ture12 Figure 2 - Installation test system 13 Table 1 - Cable impedance15 Table 2 - Minimum NEXT 16 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 08:45:12 GMT+00:00 2006, Uncontrolled Copy, (c) BSI - 5 - EN 50441-3:2006 1 Scope These cables are for installation in indoor Residential Cabling
21、 Systems. They are specified up to 1 000 MHz. Their design is based on the requirements of the EN 50290-2-1. They are specifically designed for cabling in residential environment supporting ICT and BCT applications. (Telephone, Computer and TV services). This specification defines the constructional
22、 details as well as the specific performances of the cables. Unless otherwise specified, all cables covered by this standard may be subjected to voltages not more than 300 V a.c. or 450 V d.c. and shall meet the essential requirements of the low voltage directive. Due to current limitation related t
23、o the conductor cross sectional area, they are not intended for direct connection to mains electricity supply. The maximum current rating per conductor is less than or equal to 3 A/mm unless otherwise specified in the relevant detail specification. 2 Normative references The following referenced doc
24、uments 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 amendments) applies. Publication Title EN 50265-2-1 Common test methods for cables under fire cond
25、itions - Test for resistance to vertical flame propagation for a single insulated conductor or cable Part 2-1: Procedures - 1 kW pre-mixed flame EN 50289-1-2 Communication cables - Specifications for test methods Part 1-2:Electrical test methods - DC resistance EN 50289-1-3 Communication cables - Sp
26、ecifications for test methods Part 1-3: Electrical test methods - Dielectric strength 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
27、 test methods - Electromagnetic performance EN 50289-1-8 Communication cables - Specifications for test methods Part 1-8: Electrical test methods - Attenuation EN 50289-1-10 Communication cables - Specifications for test methods Part 1-10: Electrical test methods - Crosstalk EN 50289-1-11 Communicat
28、ion cables - Specifications for test methods Part 1-11: Electrical test methods - Characteristic impedance, input impedance, return loss Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 08:45:12 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 50441-3:2006 - 6 - EN 50289-3-7 Communication cables
29、- Specifications for test methods Part 3-7:Mechanical test methods - Abrasion resistance of the cable sheath EN 50289-3-9 Communication cables - Specifications for test methods Part 3-9: Mechanical test methods - Bending tests EN 50289-3-11 Communication cables - Specifications for test methods Part
30、 3-11: Mechanical test methods - Cable cut-through resistance 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 Comm
31、unication cables 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 retard
32、ant thermoplastic sheathing compounds EN 50290-3 1) Communication cables Part 3: Quality assessment EN 60794-1-2 Optical fibre cables Part 1-2: Generic specification Basic optical cable test procedures (IEC 60794-1-2) EN 60811-1-1 Insulating and sheathing materials of electric and optical cables Com
33、mon 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 Standard colours for insulation for low-frequency cables and wires (IEC 60304) 3 Quality control According to EN 50290-3. 1) un
34、der consideration Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 08:45:12 GMT+00:00 2006, Uncontrolled Copy, (c) BSI - 7 - EN 50441-3:2006 4 Cable construction 4.1 Conductors 4.1.1 Conductor construction According to 4.1 of EN 50290-2-1. 4.1.2 Conductor Type According to clause 4.1.1 of EN 5
35、0290-2-1, the conductor is a solid wire of annealed copper with a minimum diameter of 0,5 mm (diameters larger than 0,8 mm could cause connectorisation problems). NOTE Diameter 0,65 mm may cause problems with connecting hardware. 4.2 Insulation 4.2.1 Insulation material The insulation of the conduct
36、or shall be polyethylene in accordance with EN 50290-2-23. Other relevant materials may be used providing that they would not affect the compliance of the cable against local regulations (e.g. Environmental Directives). 4.2.2 Thickness of the insulation The thickness of the insulation shall be compa
37、tible with the electrical requirements as defined in Clause 7. 4.2.3 Colour of the insulated conductor The colour of insulation should be a reasonable match to HD 402 S2. 4.3 Cable element The cable element shall be a pair. The lay length shall be in accordance with EN 50290-2-1. 4.4 Screening of th
38、e cable element The pairs are individually screened. Where a braid is laid down, the minimum coverage (only for mechanical reasons) shall be 60 %. Where the screen is a metallized foil and a braid, this minimum coverage shall be 30 %. The method of calculating the coverage measurement is described i
39、n EN 50290-2-1. 4.5 Cabling The cables shall have at least 4 pairs. The core of the cable shall be such that 7.4 and 7.5 are fulfilled. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 08:45:12 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 50441-3:2006 - 8 - 4.6 Spare pairs Not applicable. 4.7
40、 Colour code The colour code shall be given in the detail specification. It should take into account the local practices as well as international recognised codes. The colours shall be easily identifiable. 4.8 Screening and wrapping of the core 4.8.1 Core wrapping The cable core may be wrapped with
41、one or more non-hydroscopic synthetic tapes. The synthetic tape shall be applied helically or longitudinally with an overlap of a minimum of 10 %. 4.8.2 Screen The cable core shall be screened according to 4.1.1.2 of EN 50290-2-1. Where a braid is applied, the minimum coverage (mainly for mechanical
42、 reasons) shall be 60 %. Where the screen is a metallized foil and a braid, this minimum coverage shall be 30 %. The method of calculating the coverage is described in EN 50290-2-1. 4.9 Sheath 4.9.1 Sheath material The sheath shall be of a thermoplastic compound according to EN 50290-2-27 or EN 5029
43、0-2-22. 4.9.2 Sheath construction Unless otherwise specified, the colour of sheath shall be cream. The sheath shall be applied to fit closely to the core of the cable. However it shall be possible to strip the cable over 20 cm without removing foils or damaging conductors (ffs). The sheath shall be
44、cylindrical and its external aspect shall not reveal the core profile. The ovality of the finished cable shall be not greater than 0,16. 4.9.3 Thickness of the sheath The minimum thickness shall be equal to or greater than 0,5 mm when measured according to EN 60811-1-1. Licensed Copy: sheffieldun sh
45、effieldun, na, Mon Nov 06 08:45:12 GMT+00:00 2006, Uncontrolled Copy, (c) BSI - 9 - EN 50441-3:2006 4.10 Ripcord A ripcord should be laid under the sheath. 4.11 Overall diameter For installation practices and connectorisation the following outer diameter (ffs) is recommended : Number of pairs Max OD
46、 mm Minimum thickness of the sheath mm 4 9 0,50 NOTE In case of installation by stapling other diameters may be required (see 5.4.7.2). 4.12 Identification Identification shall be provided either by sheath marking or by identification thread. 4.12.1 Sheath marking Unless otherwise specified by the c
47、ustomer, the cable may be marked . Sheath marking shall be in accordance with a non-degradable print or embossing 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 supplie
48、r metric marking. 4.12.2 Identification thread In case the cable is not identified by sheath marking, there shall be an other means of identification (e.g. identification thread laid under the sheath, identification tape, printing on the core wrapping etc). Identification shall contain the following
49、 minimum information: designation of cable including the numbering of the relevant standard reaction to fire classification (under the CPD) (ffs); name of supplier. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 08:45:12 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 50441-3:2006 - 10 - 4.13 Delivery length 4.13.1 Labelling Unless otherwise specified in the detail specification drums or coils shall be provided with a label wi