Test requirements for low voltage aerial bundled cable accessories - Part 2: Tension and suspension clamps, fittings and brackets for self supporting 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 2 applies to tensioning devices consisting of tension and suspension clamps, fittings and brackets designed to be used for installation of self supporting ABC defined in HD 626.
Tests described in this document are type tests.

Prüfanforderungen für Bauteile für isolierte Niederspannungsfreileitungen - Teil 2: Abspann- und Tragklemmen für selbsttragende isolierte Freileitungsseile

Prescriptions relatives aux essais des accessoires pour réseaux aériens basse tension torsadés - Partie 2: Matériels d’ancrage et de suspension pour réseaux aériens en conducteurs isolés torsadés auto-portés

Zahteve za preskušanje pribora za nizkonapetostne izolirane nadzemne kable - 2. del: Napenjalne in vzmetne objemke, zatezne in nosilne sponke za samonosilne sisteme

General Information

Status
Not Published
Public Enquiry End Date
31-Dec-2024
Technical Committee
Current Stage
4020 - Public enquire (PE) (Adopted Project)
Start Date
23-Oct-2024
Due Date
12-Mar-2025

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SLOVENSKI STANDARD
01-december-2024
Zahteve za preskušanje pribora za nizkonapetostne izolirane nadzemne kable - 2.
del: Napenjalne in vzmetne objemke, zatezne in nosilne sponke za samonosilne
sisteme
Test requirements for low voltage aerial bundled cable accessories - Part 2: Tension and
suspension clamps, fittings and brackets for self supporting system
Prüfanforderungen für Bauteile für isolierte Niederspannungsfreileitungen - Teil 2:
Abspann- und Tragklemmen für selbsttragende isolierte Freileitungsseile
Prescriptions relatives aux essais des accessoires pour réseaux aériens basse tension
torsadés - Partie 2: Matériels d’ancrage et de suspension pour réseaux aériens en
conducteurs isolés torsadés auto-portés
Ta slovenski standard je istoveten z: prEN 50483-2
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 50483-2:2009
English Version
Test requirements for low voltage aerial bundled cable
accessories - Part 2: Tension and suspension clamps, fittings
and brackets for self supporting system
Prescriptions relatives aux essais des accessoires pour Prüfanforderungen für Bauteile für isolierte
réseaux aériens basse tension torsadés - Partie 2: Niederspannungsfreileitungen - Teil 2: Abspann- und
Matériels d'ancrage et de suspension pour réseaux aériens Tragklemmen für selbsttragende isolierte Freileitungsseile
en conducteurs isolés torsadés auto-portés
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: 79844 Ref. No. prEN 50483-2 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 . 8
10 7.1 Mechanical tests . 8
11 7.2 Temperature . 8
12 8 Type tests . 8
13 8.1 Type tests for tension clamps . 8
14 8.2 Type tests for suspension clamps . 12
15 8.3 Dielectrical voltage tests . 20
16 8.4 Clamp bolt tightening test . 21
17 8.5 Tests on brackets . 22
18 8.6 Environmental tests . 23
19 Bibliography . 27

20 European foreword
21 This document [prEN 50483-2:2024] has been prepared by WG 11 of CLC/TC 20 “Electric Cables”.
22 This document is currently submitted to the Enquiry.
23 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)
24 This document will supersede EN 50483-2:2009 and all of its amendments and corrigenda (if any).
25 prEN 50483-2:2024 includes the following significant technical changes with respect to EN 50483-2:2009:
26 This is Part 2 of CENELEC standard EN 50483 “Test requirements for low voltage aerial bundled cable
27 accessories”, which has six parts:
28 — Part 1: Generalities;
29 — Part 2: Tension and suspension clamps, fittings and brackets for self supporting system;
30 — Part 3: Tension and suspension clamps for neutral messenger system;
31 — Part 4: Connectors;
32 — Part 5: Electrical ageing test;
33 — Part 6: Environmental testing.
34 Introduction
35 The objective of the EN 50483 series is to provide a method of testing the suitability of accessories when used
36 under normal operating conditions with low voltage aerial bundled cables (ABC) complying with HD 626.
37 This European Standard does not invalidate existing approvals of products achieved on the basis of national
38 standards and specifications and/or the demonstration of satisfactory service performance. However, products
39 approved according to such national standards or specifications cannot directly claim approval to this
40 European Standard. It may be possible, subject to agreement between the customer and the manufacturer
41 and/or the supplier, and/or the relevant conformity assessment body, to demonstrate that conformity to the
42 earlier standard can be used to claim conformity to this standard, provided an assessment is made of any
43 additional type testing that may need to be carried out. Any such additional testing that is part of a sequence
44 of testing cannot be done separately.
45 1 Scope
46 EN 50483 series applies to overhead line fittings for tensioning, supporting and connecting aerial bundled
47 cables (ABC) of rated voltage U /U (U ): 0,6/1 (1,2) kV.
0 m
48 This Part 2 applies to tensioning devices consisting of tension and suspension clamps, fittings and brackets
49 designed to be used for installation of self supporting ABC defined in 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 — Part 1:
56 Generalities
57 prEN 50483-6:2024, Test requirements for low voltage aerial bundled cable accessories — Part 6:
58 Environmental testing
59 HD 626, Overhead distribution cables of rated voltage U /U(U ): 0,6/1 (1,2) kV
o m
60 IEC 60050-461, International Electrotechnical Vocabulary (IEV) — Part 461: Electric cables
61 3 Terms and definitions
62 For the purposes of this document, the terms and definitions given in IEC 60050-461 and the following apply.
63 ISO and IEC maintain terminology databases for use in standardization at the following addresses:
64 — ISO Online browsing platform: available at https://www.iso.org/obp/
65 — IEC Electropedia: available at https://www.electropedia.org/
66 3.1
67 aerial bundled cable (ABC)
68 aerial cable consisting of a group of insulated conductors which are twisted together including, or not, a non
69 insulated conductor
70 [SOURCE: IEV 461-08-02, modified]
71 Note 1 to entry: The terms bundled conductors, bundled cables, bundled cores, conductor bundles and bundle could be
72 used as equivalent to the term aerial bundled cable (ABC).
73 3.2
74 aerial insulated cable
75 insulated cable designed to be suspended overhead and outdoors
76 [SOURCE: IEV 461-08-01]
77 3.3
78 angle of deviation
79 complementary angle to the angle defined by the two parts of the cable on both sides of the suspension clamp
80 3.4
81 clamp bolt
82 bolt which tightens two parts of a clamp together
83 3.5
84 conductor insulation
85 insulation applied on a conductor
86 [SOURCE: IEV 461-02-02, modified]
87 3.6
88 conductor (of a cable)
89 part of a cable which has the specific function of carrying current
90 [SOURCE: IEV 461-01-01]
91 3.7
92 core
93 assembly comprising conductor and its own insulation
94 [SOURCE: IEV 461-04-04, modified]
95 3.8
96 bracket (or fitting)
97 device for attaching ABC tension or/and suspension clamps to a pole or to a wall
98 3.9
99 insulation (of a cable)
100 insulating materials incorporated in a cable with the specific function of withstanding voltage
101 [SOURCE: IEV 461-02-01]
102 3.10
103 minimum breaking load (MBL)
104 minimum breaking load of the conductor given by HD 626 or the cable manufacturer if not defined in the
105 standard, or minimum breaking load of the clamp given by the clamp manufacturer
106 3.11
107 self supporting system
108 aerial insulated system where all the cores of the ABC contribute to its support
109 3.12
110 sheath
111 uniform and continuous tubular covering of metallic or non-metallic material, generally extruded
112 [SOURCE: IEV 461-05-03]
113 3.13
114 suspension clamp
115 device which attaches an aerial insulated cable to a bracket in order to carry its weight and any specified
116 loading
117 [SOURCE: IEV 461-18-02, modified]
118 3.14
119 tension clamp
120 device which firmly attaches an aerial insulated cable to a support and is designed to transmit the specified
121 mechanical tension in the cable or messenger to the supporting structure
122 [SOURCE: IEV 461-18-01,]
123 3.15
124 service clamp
125 device which firmly attaches an aerial insulated cable to a support and is designed to transmit a mechanical
126 tension in the cable or messenger to the supporting structure lower than the ABC MBL
127 3.16
128 standard load clamp
129 device which firmly attaches an aerial insulated cable to a support and is designed to transmit a normal
130 mechanical tension in the cable or messenger to the supporting structure
131 3.17
132 type test
133 test required to be made before supplying a type of material covered by this standard on a general
134 commercial basis, in order to demonstrate satisfactory performance characteristics to meet the intended
135 application
136 Note 1 to entry: These tests are of such a nature that, after they have been made, they need not be repeated unless
137 changes are made to the accessory materials, design or type of manufacturing process which might change the
138 performance characteristics.
139 3.18
140 bracket (or fitting)
141 device for attaching ABC tension or/and suspension clamps to a pole or to a wall
142 4 Symbols
g slippage after 15 cycles
g slippage after 250 cycles
D circumscribed diameter of conductor bundle (mm)
...

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