SIST EN 50374:2025
(Main)Conductor cars
Conductor cars
This document applies to conductor car that are used to access overhead line conductors, shield wires or shield wires with integrated communication systems to undertake work involving rectification of defects and/or installing components and fittings. This document covers also bicycle type access equipment where it is applicable.
Leitungsfahrzeuge
Nacelles suspendues
Le présent document s'applique à la nacelle suspendue utilisée pour accéder aux conducteurs de lignes aériennes, aux câbles de garde ou aux câbles de garde avec systèmes de communication intégrés afin d’effectuer des travaux qui impliquent la correction de défauts et/ou l'installation de composants et d'accessoires. Le présent document couvre également les équipements d’accès de type bicyclette lorsqu’ils s’appliquent.
Vozički za delo na nadzemnih vodih
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-junij-2025
Nadomešča:
SIST EN 50374:2004
Vozički za delo na nadzemnih vodih
Conductor cars
Leitungsfahrzeuge
Nacelles suspendues
Ta slovenski standard je istoveten z: EN 50374:2025
ICS:
13.260 Varstvo pred električnim Protection against electric
udarom. Delo pod napetostjo shock. Live working
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 50374
NORME EUROPÉENNE
EUROPÄISCHE NORM April 2025
ICS 43.120 Supersedes EN 50374:2004
English Version
Conductor cars
Nacelles suspendues Leitungsfahrzeuge
This European Standard was approved by CENELEC on 2025-03-17. 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
© 2025 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 50374:2025 E
Contents Page
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 List of significant hazards . 9
5 Requirements . 11
5.1 Classification of conductor car. 11
5.2 Mechanical requirements . 12
5.2.1 General . 12
5.2.2 Load-bearing structure . 12
5.2.3 Welded joints . 12
5.3 Prevention of the conductor car falling . 12
5.4 Braking system . 12
5.4.1 General . 12
5.4.2 Drive brakes . 13
5.4.3 Locking brakes . 13
5.5 Floor covering . 13
5.6 Fall from height protection of the operator . 13
5.6.1 Fall arrest attachment options . 13
5.6.2 Side guards and Hand rails . 13
5.6.3 Entanglement and entrapment points . 14
5.6.4 Operator environment . 14
5.6.5 Warning signs . 14
5.7 Tow rope attachment point . 15
5.8 Lifting points for raising and lowering . 15
5.9 Built-in traction sources . 15
5.9.1 General . 15
5.9.2 Hydraulic equipment . 15
5.9.3 Electrical equipment . 15
5.9.4 Batteries . 15
5.9.5 Combustion engines . 15
5.9.6 Operating controls . 16
5.9.7 Drive systems . 16
5.9.8 Disengaging mechanism in the event of a breakdown of the built-in-traction . 16
5.10 Equipotential bonding . 16
5.11 Safety net . 16
5.12 Noise reduction . 16
6 Tests . 17
6.1 General . 17
6.2 Test of the load bearing structure . 18
6.3 Handling test . 18
6.4 Visual inspection . 18
6.5 Prevention of the conductor car falling . 19
6.6 Brake test . 19
6.6.1 General . 19
6.6.2 Drive brake test . 19
6.6.3 Locking brake test . 19
6.7 Functional brake test . 20
6.8 Fall from height protection of the operator . 20
6.8.1 Testing of fall arrest attachment options . 20
6.8.2 Test of the side guards and hand rails . 20
6.9 Test of tow rope attachment point . 20
6.10 Test of lifting points for raising and lowering . 20
6.11 Test of drive systems . 21
6.12 Test of operating controls . 21
6.13 Test of entanglement and entrapment points . 21
6.14 Wipe test . 21
6.15 Test of hydraulic equipment . 21
6.16 Test of electrical equipment . 21
6.17 Functional hydraulic and/or electrical tests . 21
6.18 Test of disengaging the drive mechanism in the event of a breakdown of built-in-
traction . 22
6.19 Test of safety net . 22
6.20 Test of the equipotential bonding . 22
6.21 Verification of safety and hygiene requirements . 22
7 User information . 22
7.1 General . 22
7.2 Identification plate . 22
7.3 Instructions for use . 23
7.4 Logbook . 24
Annex A (normative) Noise test code . 25
Annex ZZ (informative) Relationship between this European Standard and the essential
requirements of Directive 2006/42/EC aimed to be covered . 28
Bibliography . 31
European foreword
This document (EN 50374:2025) has been prepared by CLC/TC 78 “Equipment and tools for live
working”.
The following dates are fixed:
• latest date by which this document has to be (dop) 2026-04-30
implemented at national level by publication of
an identical national standard or by
endorsement
• latest date by which the national standards (dow) 2028-04-30
conflicting with this document have to be
withdrawn
This document supersedes EN 50374:2004 and all of its amendments and corrigenda (if any).
— the standard was adapted to the technical progress, new requirements and changes in standards
referenced, the main topics are:
— harmonization to the Machinery Directive;
— new demands with regard to European knowledge of accidents;
— relationship to conductor car made from materials other than metal;
— relationship to conductor car used under live line condition.
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.
This document has been prepared under a standardization request addressed to CENELEC by the
European Commission. The Standing Committee of the EFTA States subsequently approves these
requests for its Member States.
For the relationship with EU Legislation, see informative Annex ZZ, which is an integral part of this
document.
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
This document is a harmonized standard to provide one means for conductor car to conform to the
essential health and safety requirements of Directive 2006/42/EC (Machinery). The machinery
concerned and the extent to which hazards, hazardous situations and events are covered are indicated
in the scope. This
...
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