oSIST prEN 50483-3:2024
(Main)Test requirements for low voltage aerial bundled cable accessories - Part 3: Tension and suspension clamps for neutral messenger system
Test requirements for low voltage aerial bundled cable accessories - Part 3: Tension and suspension clamps for neutral messenger system
EN 50483 series applies to overhead line fittings for tensioning, supporting and connecting aerial bundled cables (ABC) of rated voltage U0/U (Um): 0,6/1 (1,2) kV.
This Part 3 applies to tensioning devices consisting of tension and suspension clamps, and tension and suspension assemblies used for the installation of ABC with either insulated or bare neutral messenger.
The tension and suspension clamps are designed to be installed on neutral conductors of ABC defined in HD 626.
Tests described in this document are type tests.
Prüfanforderungen für Bauteile für isolierte Niederspannungsfreileitungen - Teil 3: Abspann- und Tragklemmen für Systeme mit Nullleiter-Tragseil
Prescriptions relatives aux essais des accessoires pour réseaux aériens basse tension torsadés - Partie 3: Matériels d'ancrage et de suspension pour réseaux aériens en conducteurs isolés torsadés avec neutre porteur
Zahteve za preskušanje pribora za nizkonapetostne izolirane nadzemne kable - 3. del: Napenjalne in vzmetne objemke za sisteme z nosilnim nevtralnim vodnikom
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
01-december-2024
Zahteve za preskušanje pribora za nizkonapetostne izolirane nadzemne kable - 3.
del: Napenjalne in vzmetne objemke za sisteme z nosilnim nevtralnim vodnikom
Test requirements for low voltage aerial bundled cable accessories - Part 3: Tension and
suspension clamps for neutral messenger system
Prüfanforderungen für Bauteile für isolierte Niederspannungsfreileitungen - Teil 3:
Abspann- und Tragklemmen für Systeme mit Nullleiter-Tragseil
Prescriptions relatives aux essais des accessoires pour réseaux aériens basse tension
torsadés - Partie 3: Matériels d'ancrage et de suspension pour réseaux aériens en
conducteurs isolés torsadés avec neutre porteur
Ta slovenski standard je istoveten z: prEN 50483-3
ICS:
29.240.20 Daljnovodi Power transmission and
distribution lines
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD DRAFT
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2024
ICS 29.240.20 Will supersede EN 50483-3:2009
English Version
Test requirements for low voltage aerial bundled cable
accessories - Part 3: Tension and suspension clamps for neutral
messenger system
Prescriptions relatives aux essais des accessoires pour Prüfanforderungen für Bauteile für isolierte
réseaux aériens basse tension torsadés - Partie 3: Niederspannungsfreileitungen - Teil 3: Abspann- und
Matériels d'ancrage et de suspension pour réseaux aériens Tragklemmen für Systeme mit Nullleiter-Tragseil
en conducteurs isolés torsadés avec neutre porteur
This draft European Standard is submitted to CENELEC members for enquiry.
Deadline for CENELEC: 2025-01-03.
It has been drawn up by CLC/TC 20.
If this draft becomes a European Standard, 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.
This draft European Standard was established by CENELEC 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 Centre 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, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye and the United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2024 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Project: 79845 Ref. No. prEN 50483-3 E
Contents Page
1 European foreword . 3
2 Introduction . 4
3 1 Scope . 5
4 2 Normative references . 5
5 3 Terms and definitions . 5
6 4 Symbols . 7
7 5 Characteristics . 7
8 6 Marking . 7
9 7 General test conditions . 7
10 7.1 Mechanical tests . 7
11 7.2 Temperature . 8
12 8 Type tests . 8
13 8.1 General . 8
14 8.2 Type tests for tension clamps . 8
15 8.3 Type tests for suspension clamps . 19
16 8.4 Type tests for brackets . 34
17 Bibliography . 35
18 European foreword
19 This document [prEN 50483-3:2024] has been prepared by WG 11 of CLC/TC 20 “Electric cables”.
20 This document is currently submitted to the Enquiry.
21 The following dates are proposed:
• latest date by which the existence of this (doa) dav + 6 months
document has to be announced at national
level
• latest date by which this document has to be (dop) dav + 12 months
implemented at national level by publication of
an identical national standard or by
endorsement
• latest date by which the national standards (dow) dav + 36 months
conflicting with this document have to be (to be confirmed or
withdrawn modified when voting)
22 This document will supersede EN 50483-3:2009 and all of its amendments and corrigenda (if any).
23 prEN 50483-3:2024 includes the following significant technical changes with respect to EN 50483-3:2009:
24 This is Part 3 of CENELEC standard EN 50483 “Test requirements for low voltage aerial bundled cable
25 accessories”, which has six parts:
26 — Part 1: Generalities;
27 — Part 2: Tension and suspension clamps, fittings and brackets for self supporting system;
28 — Part 3: Tension and suspension clamps for neutral messenger system;
29 — Part 4: Connectors;
30 — Part 5: Electrical ageing test;
31 — Part 6: Environmental testing.
32 Introduction
33 The objective of the EN 50483 series is to provide a method of testing the suitability of accessories when used
34 under normal operating conditions with low voltage aerial bundled cables (ABC) complying with HD 626.
35 This European Standard does not invalidate existing approvals of products achieved on the basis of national
36 standards and specifications and/or the demonstration of satisfactory service performance. However, products
37 approved according to such national standards or specifications cannot directly claim approval to this
38 European Standard. It may be possible, subject to agreement between the customer and the manufacturer
39 and/or the supplier, and/or the relevant conformity assessment body, to demonstrate that conformity to the
40 earlier standard can be used to claim conformity to this standard, provided an assessment is made of any
41 additional type testing that may need to be carried out. Any such additional testing that is part of a sequence
42 of testing cannot be done separately.
43 1 Scope
44 EN 50483 series applies to overhead line fittings for tensioning, supporting and connecting aerial bundled
45 cables (ABC) of rated voltage U /U (U ): 0,6/1 (1,2) kV.
0 m
46 This Part 3 applies to tensioning devices consisting of tension and suspension clamps, and tension and
47 suspension assemblies used for the installation of ABC with either insulated or bare neutral messenger.
48 The tension and suspension clamps are designed to be installed on neutral conductors of ABC defined in
49 HD 626.
50 Tests described in this document are type tests.
51 2 Normative references
52 The following documents are referred to in the text in such a way that some or all of their content constitutes
53 requirements of this document. For dated references, only the edition cited applies. For undated references,
54 the latest edition of the referenced document (including any amendments) applies.
55 prEN 50483-1:2024, Test requirements for low voltage aerial bundled cable accessories
56 prEN 50483-2:2024, Test requirements for low voltage aerial bundled cable accessories
57 prEN 50483-6:2024, Test requirements for low voltage aerial bundled cable accessories
58 HD 626 S1:1996, Overhead distribution cables of rated voltage Uo/U(Um): 0,6/1 (1,2) kV
59 IEC 60050-461, International Electrotechnical Vocabulary (IEV) – Part 461: Electric cables
60 3 Terms and definitions
61 For the purposes of this document, the terms and definitions given in IEC 60050-461 and the following apply.
62 3.1
63 aerial bundled cable (ABC)
64 aerial cable consisting of a group of insulated conductors which are twisted together including, or not, a non
65 insulated conductor
66 [SOURCE: IEV 461-08-02, modified]
67 Note 1 to entry: The terms bundled conductors, bundled cables, bundled cores, conductor bundles and bundle could be
68 used as equivalent to the term aerial bundled cable (ABC).
69 3.2
70 aerial insulated cable
71 insulated cable designed to be suspended overhead and outdoors
72 [SOURCE: IEV 461-08-01]
73 3.3
74 angle of deviation
75 complementary angle to the angle defined by the two parts of the cable on both sides of the suspension clamp
76 3.4
77 clamp bolt
78 bolt which tightens two parts of a clamp together
79 3.5
80 conductor insulation
81 insulation applied on a conductor
82 [SOURCE: IEV 461-02-02, modified]
83 3.6
84 conductor (of a cable)
85 part of a cable which has the specific function of carrying current
86 [SOURCE: IEV 461-01-01]
87 3.7
88 core
89 assembly comprising conductor and its own insulation
90 [SOURCE: IEV 461-04-04, modified]
91 3.8
92 bracket (or fitting)
93 device for attaching ABC tension or/and suspension clamps to a pole or to a wall
94 3.9
95 insulation (of a cable)
96 insulating materials incorporated in a cable with the specific function of withstanding voltage
97 [SOURCE: IEV 461-02-01]
98 3.10
99 messenger
100 wire or rope, the primary function of which is to support the cable in aerial installations, which may be separate
101 from or integral with the cable it supports
102 [SOURCE: IEV 461-08-03]
103 3.11
104 minimum breaking load (MBL)
105 minimum breaking load of the conductor given by HD 626 or the cable manufacturer if not defined in the
106 standard or minimum breaking load of the clamp given by the clamp manufacturer
107 3.12
108 mobile link
109 device linking the suspension clamp to the bracket
110 3.13
111 neutral messenger system
112 aerial insulated system where only the neutral messenger supports the ABC
113 3.14
114 sheath
115 uniform and continuous tubular covering of metallic or non metallic material, generally extruded
116 [SOURCE: IEV 461-05-03]
117 3.15
118 suspension clamp
119 device which attaches an aerial insulated cable to a bracket in order to carry its weight and any specified
120 loading
121 [SOURCE: IEV 461-18-02, modified]
122 3.16
123 suspension or tension assembly
124 clamp with mobile link, or not, and associated bracket
125 3.17
126 tension clamp
127 device which firmly attaches an aerial insulated cable to a bracket and is designed to transmit the specified
128 mechanical tension in the cable or messenger to the supporting structure
129 [SOURCE: IEV 461-18-01, modified]
130 3.18
131 type test
132 test required to be made before supplying a type of material covered by this standard on a general
133 commercial basis, in order to demonstrate satisfactory performance characteristics to meet the intended
134 application
135 Note 1 to entry: These tests are of such a nature that, after they have been made, they need not be repeated unless
136 changes are made to the accessory materials, design or type of manufacturing process which might change the
137 performance characteristics.
138 4 Symbols
g slippage after 2 cycles
g slippage after 15 cycles
g slippage after 250 cycles
g slippage after 500 cycles
d diameter of core
α maximum angle (°) of deviation of a suspension clamp as recommended by the manufacturer or
specified by the customer
139 5 Characteristics
140 These fittings shall be capable of supporting the tensile loads applied to the ABC for which they are designed,
141 referring to the neutral messenger specified MBL, in accordance with the following tests.
142 Tension and suspension equipment shall be designed to avoid any direct or accidental contact between any
143 phase conductor and metallic parts of the clamp.
144 6 Marking
145 See Clause 6 of prEN 50483
...
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