SIST EN 50483-1:2026

Test requirements for low voltage aerial bundled cable accessories - Part 1: Generalities

The 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.
The purpose of this Part 1 is to define the common aspects of the products included in the above scope.

Prüfanforderungen für Bauteile für isolierte Niederspannungsfreileitungen - Teil 1: Allgemeines

Prescriptions relatives aux essais des accessoires pour réseaux aériens basse tension torsadés - Partie 1: Généralités

Zahteve za preskušanje pribora za nizkonapetostne izolirane nadzemne kable - 1. del: Glavne točke

Serija EN 50483 se nanaša na opremo za nadzemne vode za napenjanje, podporo in povezovanje zračnih snopov kablov (ABC) z nazivno napetostjo U0/U (Um): 0,6/1 (1,2) kV.
Namen tega dela 1 je opredeliti skupne vidike izdelkov, vključenih v zgoraj navedeni obseg.

General Information

• Status: Published
• Public Enquiry End Date: 31-Dec-2024
• Publication Date: 16-Apr-2026
• ICS: 29.240.20 - Power transmission and distribution lines
• Technical Committee: IEKA - Electric cables
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 09-Apr-2026
• Due Date: 14-Jun-2026
• Completion Date: 17-Apr-2026
• Ref Project: EN 50483-1:2026 - Test requirements for low voltage aerial bundled cable accessories - Part 1: Generalities

Relations

• Replaces: SIST EN 50483-1:2009 - Test requirements for low voltage aerial bundled cable accessories -- Part 1: Generalities
• Effective Date: 01-Jun-2026

Overview

kSIST FprEN 50483-1:2025 is a European standard developed by the CLC (European Committee for Electrotechnical Standardization) that focuses on the test requirements for low voltage aerial bundled cable (ABC) accessories, specifically Part 1, which covers the general aspects and common requirements. This standard applies to overhead line fittings used for tensioning, supporting, and connecting ABC systems with a rated voltage of U0/U (Um): 0.6/1 (1.2) kV.

It defines the essential testing methods, marking, quality procedures, and terminology related to ABC accessories to ensure their suitability and reliability during normal operating conditions. kSIST FprEN 50483-1:2025 supersedes EN 50483-1:2009 and is part of a six-part series dedicated to different components and testing aspects of low voltage ABC accessories.

Key Topics

• Scope and Applicability
  The standard covers tension and suspension clamps, connectors (including insulation piercing connectors), brackets, pre-insulated lugs, and through connectors for low voltage ABC systems.

• Terminology and Definitions
  It provides a clear glossary of terms such as aerial bundled cable, suspension clamp, tension clamp, branch connector, and more, referencing the International Electrotechnical Vocabulary (IEC 60050-461) for consistent terminology.

• Test Procedures
  The document outlines routine, sample, and type testing procedures designed to demonstrate the integrity and performance of ABC accessories. It also defines environmental and electrical ageing tests, referenced in related parts of the series.

• Marking and Traceability
  All accessories must bear permanent markings that include manufacturer identification, product codes, batch numbers, applicable cross sections, tightening torques, and recycling codes, enabling traceability and proper application.

• Quality Control
  The standard details quality control measures and inspection processes to ensure products meet design specifications and regulatory requirements.

• Climate Adaptability
  Recognizes the variation in climatic conditions across Europe, recommending optional additional tests agreed upon by manufacturers and customers to ensure product suitability in different environments.

Applications

kSIST FprEN 50483-1:2025 is vital for manufacturers, suppliers, and purchasers involved in the overhead power distribution industry, specifically dealing with low voltage aerial bundled cables. Its applications include:

• Design and Production of ABC accessories (clamps, connectors, brackets) ensuring compliance with safety and performance standards.
• Quality Assurance during manufacturing and pre-delivery to meet rigorous testing requirements.
• Installation Guidance for utilities and contractors by defining compatible accessories and ensuring reliable, long-lasting overhead distribution lines.
• Service and Maintenance by providing traceability and product identification through marking requirements.
• Environmental Testing Adaptation according to regional climatic diversity to maintain operational integrity.

This standard supports the deployment of safe, efficient, and durable low voltage overhead cable systems vital for urban and rural electricity distribution networks.

Related Standards

The FprEN 50483 series consists of six key parts that complement Part 1:

• EN 50483-2: Tension and suspension clamps, fittings and brackets for self-supporting systems.
• EN 50483-3: Tension and suspension clamps for neutral messenger systems.
• EN 50483-4: Connectors including insulation piercing connectors and pre-insulated lugs.
• EN 50483-5: Electrical ageing test requirements.
• EN 50483-6: Environmental testing procedures.

Additional normative references include:

• EN 60068-1:2014: Environmental testing guidelines.
• HD 626: Specification for overhead distribution cables rated 0.6/1 (1.2) kV.
• IEC 60050-461: International electrotechnical vocabulary definitions for electric cables.

Implementing FprEN 50483-1 together with these standards ensures comprehensive testing coverage, regulatory compliance, and standardized product quality for low voltage aerial bundled cable accessories.

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Keywords: low voltage aerial bundled cable accessories, FprEN 50483-1, overhead line fittings, tension clamps, suspension clamps, connectors, ABC systems, electrical testing standards, cable accessory quality, European electrotechnical standards, CLC standard, low voltage power distribution.

Standards Content (Sample)

SLOVENSKI STANDARD
01-junij-2026
Nadomešča:
SIST EN 50483-1:2009
Zahteve za preskušanje pribora za nizkonapetostne izolirane nadzemne kable - 1.
del: Glavne točke
Test requirements for low voltage aerial bundled cable accessories - Part 1: Generalities
Prüfanforderungen für Bauteile für isolierte Niederspannungsfreileitungen - Teil 1:
Allgemeines
Prescriptions relatives aux essais des accessoires pour réseaux aériens basse tension
torsadés - Partie 1: Généralités
Ta slovenski standard je istoveten z: EN 50483-1:2026
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 EN 50483-1
NORME EUROPÉENNE
EUROPÄISCHE NORM April 2026
ICS 29.240.20 Supersedes EN 50483-1:2009
English Version
Test requirements for low voltage aerial bundled cable
accessories - Part 1: Generalities
Prescriptions relatives aux essais des accessoires pour Prüfanforderungen für Bauteile für isolierte
réseaux aériens basse tension torsadés - Partie 1: Niederspannungsfreileitungen - Teil 1: Allgemeines
Généralités
This European Standard was approved by CENELEC on 2026-03-09. 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 obtained on application to the CEN-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 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.

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
© 2026 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 50483-1:2026 E
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Symbols . 9
5 Products concerned . 9
6 Marking . 9
7 Quality procedure . 9
8 Routine and sample tests . 10
8.1 General . 10
8.2 Checking compliance of the supplied products . 10
8.3 Final inspection and testing . 10
8.4 Inspection and test records . 11
9 Type tests . 11
9.1 Test conditions . 11
9.2 Test for permanent marking . 12
9.3 Tests and sample selection . 13
9.4 Test reports . 13
Annex A (normative) List of tests for compliance . 15
Annex B (normative) Test selection – Samples needed for type tests . 17
Annex C (informative) Highest rated temperatures of insulating compounds . 25
Bibliography . 27
Tables
Table A.1 — Selective table for type tests, sample tests and routine tests . 15
Table B.1 — Tension clamps for self-supporting system — EN 50483-2 . 17
Table B.2 — Suspension clamps for self-supporting system — EN 50483-2 . 18
Table B.3 — Tension clamps for neutral messenger — EN 50483-3 . 19
Table B.4 — Suspension clamps for neutral messenger — EN 50483-3 . 20
Table B.5 — Insulation piercing connectors (IPC) — EN 50483-4 . 21
Table B.6 — Preinsulated sleeves — EN 50483-4. 23
Table B.7 — Preinsulated lugs — EN 50483-4 . 24
Table C.1 . 25
European foreword
This document (EN 50483-1:2026) has been prepared by WG 11 of CLC/TC 20 “Electric cables”.
The following dates are fixed:
• latest date by which this document has to be (dop) 2027-04-30
implemented at national level by publication of
an identical national standard or by
endorsement
• latest date by which the national standards (dow) 2029-04-30
conflicting with this document have to be
withdrawn
This document supersedes EN 50483-1:2009 and all of its amendments and corrigenda (if any).
— Scope was extended to brackets.
This is Part 1 of CENELEC standard EN 50483 “Test requirements for low voltage aerial bundled cable
accessories”, which has six parts:
— Part 1: Generalities;
— Part 2: Tension and suspension clamps, fittings and brackets for self supporting system;
— Part 3: Tension and suspension clamps for neutral messenger system;
— Part 4: Connectors;
— Part 5: Electrical ageing test;
— Part 6: Environmental testing.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Any feedback and questions on this document should be directed to the users’ national committee. A complete
listing of these bodies can be found on the CENELEC website.
Introduction
The objective of the EN 50483 series is to provide a method of testing the suitability of accessories when used
under normal operating conditions with low voltage aerial bundled cables (ABC) complying with HD 626.
There is variation between the different ABC specifications provided by HD 626, and tests carried out on one
of the ABC types may not be completely applicable to ABC of a different specification. Therefore, the
purchasers of accessories tested to this European Standard, should ensure that all their requirements are met.
Climate differs across Europe and in order to meet the differing geographic climatic conditions it is necessary
to provide a range of tests to meet these variations. A range of optional, additional tests is provided to meet
the varying climatic needs and these should be agreed between the customer and the manufacturer and/or the
supplier see Annex C in EN 50483-6:2026).
This European Standard does not invalidate existing approvals of products achieved on the basis of national
standards and specifications and/or the demonstration of satisfactory service performance. However, products
approved according to such national standards or specifications cannot directly claim approval to this
European Standard. It may be possible, subject to agreement between the customer and the manufacturer
and/or the supplier, and/or the relevant conformity assessment body, to demonstrate that conformity to the
earlier standard can be used to claim conformity to this standard, provided an assessment is made of any
additional type testing that may need to be carried out. Any such additional testing that is part of a sequence of
testing cannot be done separately.
1 Scope
The 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.
The purpose of this Part 1 is to define the common aspects of the products included in the above scope.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes
requirements 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.
EN 50483 (all parts), Test requirements for low voltage aerial bundled cable accessories
EN 60068-1:2014, Environmental testing - Part 1: General and guidance (IEC 60068-1:1988 + corrigendum
Oct. 1988 +A1:1992)
HD 626, Overhead distribution cables of rated voltage U /U(U ): 0,6/1 (1,2) kV
o m
IEC 60050-461, International Electrotechnical Vocabulary (IEV) – Part 461: Electric cables
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60050-461 and the following apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp/
— IEC Electropedia: available at https://www.electropedia.org/
3.1
adiabatic
occurring with no addition or loss of heat from the system under consideration
3.2
aerial bundled cable (ABC)
aerial cable consisting of a group of insulated conductors which are twisted together including, or not, a non
insulated conductor
Note 1 to entry: The terms bundled conductors, bundled cables, bundled cores, conductor bundles and bundle could be
used as equivalent to the term aerial bundled cable (ABC).
[SOURCE: IEV 461-08-02, modified]
3.3
aerial-insulated-cable
insulated cable designed to be suspended overhead and outdoors
[SOURCE: IEV 461-08-01]
3.4
angle of deviation
complementary angle to the angle defined by the two parts of the cable on both sides of the suspension clamp
3.5
branch connector
metallic device for connecting a branch conductor to a main conductor at an intermediate point on the latter
[SOURCE: IEV 461-17-05]
3.6
branch conductor
conductor connected to the main conductor by a connector
3.7
clamp bolt
bolt which tightens two parts of a clamp together
3.8
conductor insulation
insulation applied on a conductor
[SOURCE: IEV 461-02-02, modified]
3.9
conductor (of a cable)
part of a cable which has the specific function of carrying current
[SOURCE: IEV 461-01-01]
3.10
connector
metallic device to connect cable conductors together
[SOURCE: IEV 461-17-03]
3.11
core
assembly comprising conductor and its own insulation
[SOURCE: IEV 461-04-04, modified]
3.12
equalizer
arrangement used in the test loop to ensure a point of equipotential and uniform current distribution in a
stranded conductor
[SOURCE: EN IEC 61238-1-2:2019, 3.5]
3.13
fixture (or fitting)
device for attaching ABC tension or/and suspension clamps to a pole or to a wall
3.14
insulation (of a cable)
insulating materials incorporated in a cable with the specific function of withstanding voltage
[SOURCE: IEV 461-02-01]
3.15
insulation piercing connector (IPC)
connector in which electrical contact with the conductor is made by metallic protrusions which pierce the
insulation of the ABC core
[SOURCE: IEV 461-11-08, modified]
3.16
median connector
connector which during the first heat cycle records the third highest temperature of the six connectors in the
test loop
[SOURCE: EN IEC 61238-1-2:2019, 3.5]
3.17
messenger
wire or rope, the primary function of which is to support the cable in aerial installations, which may be separate
from or integral with the cable it supports
[SOURCE: IEV 461-08-03]
3.18
bracket (or fitting)
device for attaching ABC tension or/and suspension clamps to a pole or to a wall
3.19
minimum breaking load (MBL)
minimum breaking load of the conductor given by HD 626 or the cable manufacturer if not defined in the
standard, or minimum breaking load of the clamp given by the clamp manufacturer
3.20
mobile link
device linking the suspension clamp to the fixture
3.21
neutral messenger system
aerial insulated system where only the neutral messenger supports the ABC
3.22
pre-insulated (terminal) lug
insulated metallic device for connecting an insulated cable conductor to other electrical equipment
3.23
pre-insulated through connector (sleeve)
insulated metallic device for connecting two consecutive lengths of insulated conductors
3.24
rated tensile strength (RTS)
estimate of the conductor breaking load calculated using the specified tensile properties of the component
wires
[SOURCE: EN 50182:2001, 3.7]
3.25
recycling code
mark(s), on a product, which identifies(y) the constituent material(s) of the product
3.26
reference conductor
length of conductor(s) without any joints, which is included in the test loop and which enables the reference
temperature and reference resistance(s) to be determined
[SOURCE: EN IEC 61238-1-2:2019, 3.7, modified]
3.27
reusable connector
connector for connecting ABC to stripped cable or bare conductor where only the branch connection can be
reused
3.28
routine test
test made on all accessories to demonstrate their integrity
3.29
sample test
test made on samples of a product or components taken from a product adequate to verify that the finished
product meets the design specifications
3.30
self supporting system
aerial insulated system where all the cores of the ABC contribute to its support
3.31
sheath
uniform and continuous tubular covering of metallic or non metallic material, generally extruded
[SOURCE: IEV 461-05-03]
3.32
shear head
head of a bolt, or a device fitted over the head of a bolt or a nut, which is designed to break at a specified
torque
3.33
suspension clamp
device which attaches an aerial insulated cable to a fixture in order to carry its weight and any specified
loading
[SOURCE: IEV 461-18-02, modified]
3.34
suspension or tension assembly
clamp with mobile link, or not, and associated fixture
3.35
tension clamp
device which firmly attaches an aerial insulated cable to a fixture and is designed to transmit the specified
mechanical tension in the cable or messenger to the supporting structure
[SOURCE: IEV 461-18-01, modified]
3.36
traceability code
mark(s), on a product, which gives information about its manufacture and year of production
3.37
type test
test required to be made before supplying a type of material covered by this standard on a general commercial
basis, in order to demonstrate satisfactory performance characteristics to meet the intended application
Note 1 to entry: These tests are of such a nature that, after they have been made, they need not be repeated unless
changes are made to the accessory materials, design or type of manufacturing process which might change the
performance characteristics.
4 Symbols
A list of symbols is available with each part of the standard where applicable.
5 Products concerned
This European Standard applies to the following products:
— tension and suspension clamps and brackets for low voltage ABC self supporting system. The type tests
shall be as defined in EN 50483-2;
— tension and suspension clamps and brackets for low voltage ABC supporting system with neutral
messenger. The type tests shall be as defined in the EN 50483-3;
— connectors including insulation piercing connectors (IPC), pre-insulated lugs and through connectors
(sleeves) for low voltage ABC systems. The type tests shall be as defined in EN 50483-4.
NOTE Diagrams show a representation of fittings only and do not indicate any preference of design.
Some type tests are common to several products and these shall be as published under the following specific
standards:
— electrical ageing test under EN 50483-5;
— environmental tests under EN 50483-6.
6 Marking
All products mentioned above shall permanently bear:
— manufacturer’s trade mark or logo;
— product code or reference;
— traceability code / batch number;
— the minimum and maximum cross section for which the unit is suitable;
— tightening torque or die reference, if applicable;
— recycling code, if any.
Other specific markings should be agreed between the customer and the manufacturer and/or the supplier.
7 Quality procedure
In order to claim compliance with this European Standard, products covered within the EN 50483 series shall
be submitted to all the relevant tests defined in Annexes A and B, and meet the relevant requirements. The
results of the tests shall be provided in writing.
8 Routine and sample tests
8.1 General
Compliance of the supplied products shall be established by presenting the results of the tests listed in
Annex A.
8.2 Checking compliance of the supplied products
8.2.1 With a quality assurance system
Within this system, the quality plan specific to the product shall specify the procedure of the tests to be carried
out and their frequency.
This plan should be made by the manufacturer and given to the customer as a part of the contractual
relationship involving the Quality Assurance. The standard model of Quality Management Systems to be
adopted by the manufacturer is described in EN ISO 9001:2015.
8.2.2 Without a quality assurance system
8.2.2.1 General
These tests shall be carried out on randomly sampled items from each supplied batch according to a standard
or procedure jointly determined by the customer and the manufacturer and/or the supplier.
It is assumed that these tests are representative of the whole batch.
8.2.2.2 Tests and inspection
8.2.2.2.1 General
As a minimum, documented procedures for inspection and testing activities in order to verify that the specified
requirements are met shall be established and maintained. The required inspection and testing procedures
shall be provided in writing.
8.2.2.2.2 Receiving inspection and testing
It shall be ensured that incoming products are not used or processed until they have been inspected or
otherwise verified as conforming to specified requirements. Verification of conformance to the specified
requirements shall be in accordance with the quality plan and/or documented procedures.
In determining the amount and nature of receiving inspection, consideration shall be given to the amount of
control at the subcontractor’s premises and the recorded evidence of conformance provided.
8.2.2.2.3 In-process inspection and testing
The following shall be carried out:
a) inspect and test the product required by the quality plan and/or documented procedure,
b) hold product until the required inspection and tests have been completed or necessary reports have been
received and verified.
8.3 Final inspection and testing
All final inspection and testing shall be carried out in accordance with the quality plan and/or documented
procedures to complete the evidence of conformance of the finished product to the specified requirements.
The quality plan and/or documented procedures for final inspection and testing shall require that all specified
inspection and tests, including those specified either on receipt of product or in process, have been carried out
and that the results meet the specified requirements.
No product shall be d
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