SIST EN 50321-1:2018

Live working - Footwear for electrical protection - Insulating footwear and overboots

This European Standard specifies the requirements and testing for PPE footwear used as electrical insulating footwear and overboots that provide protection of the worker against electric shock and used for working live or close to live parts on installations up to 36 000 V AC or 25 000 V DC.
The products designed and manufactured according to this standard contribute to the safety of the users provided they are used by skilled persons, in accordance with safe methods of work and the instructions for use.
Antistatic, electrical shock resistant and conductive footwear are not covered by this standard.
NOTE   Part 2 Electrical Shock Resistant Footwear and Part 3 Conductive Footwear for Live Working are in development.

Arbeiten unter Spannung - Schuhe für elektrischen Schutz - Isolierende Schuhe und Überschuhe

Diese Europäische Norm legt die Anforderungen und Prüfungen für Schuhe als Persönliche Schutz¬ausrüstung (PPE) fest, die als elektrisch isolierende Schuhe und Überschuhe, Schutz gegen elektrischen Schlag beim Arbeiten unter Spannung oder in der Nähe von unter Spannung stehenden Teilen in Anlagen bis 36 000 V Wechselspannung bieten.
Die nach dieser Norm entwickelten und hergestellten Produkte tragen zur Sicherheit der Anwender bei, vorausgesetzt, sie werden von Elektrofachkräften in Übereinstimmung mit sicheren Arbeitsverfahren und der Gebrauchsanleitung verwendet.
Antistatische, gegen elektrischen Schlag beständige und leitfähige Schuhe sind vom Anwendungsbereich ausgeschlossen.
ANMERKUNG 1   Diese Norm enthält nur Vorschriften für Wechselspannungsprüfungen. Es liegen begrenzte Erfahrungen für den Einsatz in Gleichstrom-Anwendungen vor.
ANMERKUNG 2   Siehe Anhang A für empfohlene Gleichstromprüfungen und höchsten Gebrauch.

Travaux sous tension - Chaussures pour protection électrique - Chaussures et couvre-chaussures isolantes

La présente Norme européenne spécifie les exigences et les essais pour les chaussures de type EPI utilisées comme chaussures et couvre-chaussures électriquement isolants qui assurent la protection des travailleurs contre les chocs électriques et utilisées dans les travaux sous tension ou à proximité de parties actives dans des installations jusqu'à 36 000 V en courant alternatif et 25 000 V en courant continu.
Les produits conçus et fabriqués conformément à la présente norme contribuent à la sécurité des utilisateurs, sous réserve qu'ils soient utilisés par des personnes qualifiées, conformément aux méthodes sures de travail et aux instructions d'utilisation.
Les chaussures antistatiques, résistantes aux chocs électriques et conductrices ne sont pas couvertes par la présente Norme.
NOTE   La Partie 2 Chaussures résistantes aux chocs électriques et la Partie 3 Chaussures conductrices pour les travaux sous tension sont en cours d'élaboration.

Delo pod napetostjo - Obutev za zaščito pred električnim udarom - Elektroizolacijska obutev in zaščitne gamaše

Ta evropski standard določa zahteve in preskušanje za zaščitno obutev (PPE), ki se uporablja kot elektroizolacijska obutev, in zaščitne gamaše, ki se uporabljajo za delo z deli pod napetostjo na opremi z izmenično napetostjo do 36.000 V ali v njihovi bližini.
Izdelki, zasnovani in izdelani v skladu s tem standardom, prispevajo k varnosti uporabnikov, kadar jih uporabljajo usposobljene osebe v skladu z varnimi metodami dela in navodili za uporabo.
Antistatična in prevodna obutev ter obutev, odporna na udar, ni zajeta v tem standardu.

General Information

• Status: Published
• Public Enquiry End Date: 31-Jan-2014
• Publication Date: 14-Feb-2018
• ICS: 13.260 - Protection against electric shock. Live working
• ICS: 13.340.50 - Leg and foot protection
• Technical Committee: DPN - Live Working
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 12-Feb-2018
• Due Date: 19-Apr-2018
• Completion Date: 15-Feb-2018
• Directive: 2016/425 - Regulation (EU) 2016/425 of the European Parliament and of the Council of 9 March 2016 on personal protective equipment and repealing Council Directive 89/686/EEC
• Directive: 89/686/EEC - Council Directive 89/686/EEC of 21 December 1989 on the approximation of the laws of the Member States relating to personal protective equipment
• Mandate: M/031 - Standardization mandate to CEN/CENELEC concerning standards for Personal Protective Equipment
• Ref Project: EN 50321-1:2018 - Live working - Footwear for electrical protection - Insulating footwear and overboots

Relations

• Replaces: SIST EN 50321:2000 - Electrically insulating footwear for working on low voltage installations
• Effective Date: 01-Mar-2018
• Corrected By: SIST EN 50321-1:2018/AC:2018 - Live working - Footwear for electrical protection - Insulating footwear and overboots
• Effective Date: 01-Oct-2018

Overview

EN 50321-1:2018 - published by CLC/CENELEC - is the European standard for live working PPE footwear that provides electrical insulation: insulating footwear and insulating overboots. It defines classification, design, electrical and non‑electrical requirements, testing, marking, packaging and manufacturer information for footwear used on or close to live parts up to 36 000 V AC or 25 000 V DC. The standard excludes antistatic, electrical shock resistant and conductive footwear (Parts 2 & 3 are under development).

Keywords: EN 50321-1:2018, live working, insulating footwear, overboots, electrical protection, PPE footwear.

Key Topics

• Electrical classification: Classes 00, 0, 1, 2, 3 and 4 mapped to nominal voltages (e.g., Class 00 up to 500 V AC / 750 V DC; Class 4 up to 36 000 V AC).
• Design and dimensions: Defines footwear designs (low shoe, ankle, half‑knee, knee) and overboots; minimum upper heights and the method for measuring the upper (important for test selection).
• Non‑electrical requirements: Compliance with EN ISO 20345 / 20346 / 20347 (safety, protective and occupational footwear) including mechanical Class II options and secure closures.
• Electrical testing: Type and routine tests, proof and withstand voltage tests, inclusion of DC testing, 16‑hour moisture conditioning and use of water as test medium for type tests; dielectric testing for footwear with perforation‑resistant inserts.
• Conformity & quality: Test reports, sampling plans, marking requirements, packaging and manufacturer instructions; Annexes include guidance for inspection and links to EU PPE regulation (Annex ZZ).
• Operational guidance: Annex A provides storage, pre‑use checks, safe use and periodic inspection recommendations.

Applications

• Used by designers and manufacturers of electrical insulating footwear and insulating overboots to ensure product compliance.
• Referenced by procurement teams, safety managers and utilities when specifying PPE for live working on medium‑ and high‑voltage installations.
• Used by test laboratories and conformity assessors for type testing, routine testing and issuing test reports.
• Useful to trainers and competent persons who supervise live working to select appropriate footwear per voltage class.

Related standards (if applicable)

• EN ISO 20345 / EN ISO 20346 / EN ISO 20347 - safety, protective and occupational footwear requirements
• EN 60060-1, EN 60212 - high‑voltage test techniques and conditioning
• EN 61318 - conformity assessment for live working tools and equipment
• EN 12568 - penetration resistant inserts

EN 50321-1:2018 provides a practical, safety‑focused framework for specifying and testing insulating footwear and overboots intended for live working, helping employers and manufacturers reduce the risk of electric shock.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Arbeiten unter Spannung - Schuhe für elektrischen Schutz - Isolierende Schuhe und ÜberschuheTravaux sous tension - Chaussures pour protection électrique - Chaussures et couvre-chaussures isolantesLive working - Footwear for electrical protection - Insulating footwear and overboots13.340.50Varovanje nog in stopalLeg and foot protection13.260Protection against electric shock. Live workingICS:Ta slovenski standard je istoveten z:EN 50321-1:2018SIST EN 50321-1:2018en,fr01-marec-2018SIST EN 50321-1:2018SLOVENSKI
STANDARDSIST EN 50321:20001DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 50321-1
January 2018 ICS 13.260; 13.340.50
Supersedes
EN 50321:1999English Version
Live working - Footwear for electrical protection - Insulating footwear and overboots
Travaux sous tension - Chaussures pour protection électrique - Chaussures et couvre-chaussures isolants
Arbeiten unter Spannung - Schuhe für elektrischen Schutz -Isolierende Schuhe und Überschuhe This European Standard was approved by CENELEC on 2017-09-14. 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey 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 © 2018 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 50321-1:2018 ESIST EN 50321-1:2018

Additional information to be supplied by manufacturer
to the instruction for use . 19 A.1 Storage, Examination before use, and Precautions in use and after use . 19 A.2 Periodic inspection . 19 Annex B (normative)
Suitable for live working; double triangle (IEC-60417-5216:2002-10) . 20 Annex C (normative)
Chronological order of type testing . 21 Annex D (informative)
Classification of defects and tests to be allocated . 22 Annex E (informative)
Rationale for the classification of defects. 23 Annex ZZ (informative)
Relationship between this European Standard and the essential requirements of Regulation 425/2016/EEC aimed to be covered . 24
latest date by which this document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2019-01-12 •
latest date by which the national standards conflicting with this document have to be withdrawn (dow) 2021-01-12 EN 50321-1:2018 includes the following significant technical changes with respect to EN 50321:1999: • the addition of electrical classifications 1, 2, 3 and 4 for AC voltages; • the addition of DC voltage testing for class 00, 0, 1 and 2; • the addition of classification of mechanical class II according to EN ISO 20345, EN ISO 20346, EN ISO 20347; • 16 h moisture conditioning for type test; • water as testing material for type test; • revised marking test; • inclusion of a test report; • inclusion of a dielectric test on footwear with perforation resistant insert; • inclusion of electrical insulating overboot style; • revised marking and test method; • periodic Inspection; • selection of EN 61318 for quality system within an annex; • definition of overboot; • definition of safety, occupational, electrical shock resistant, antistatic and conductive sole footwear; • steel metal balls to be used for routine testing only; • the addition of the Annex ZZ. This document has been prepared under a mandate given to CENELEC by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive. For the relationship with EU Directive see informative Annex ZZ, which is an integral part of this document. SIST EN 50321-1:2018

Figure 1 — Designs of electrical insulating footwear
Figure 2 — Example of designs of overboot 4.2.2.2 Height of upper The height of the upper (X in mm) is the vertical distance between the lowest point on the insole i.e. between the heel breast and the back of the heel (see Figure 3) and the lowest point of the upper. SIST EN 50321-1:2018

Key 1 upper 2 insole
3 outsole
4 lowest point of the insole within the heel region 5 height of the upper (X) Figure 3 — Measurement of the height of the upper (X) 4.2.2.3 Minimum height of the upper (Xmhu) to be tested The minimum height of the upper be tested with the electrical tests (5.2) is given in Table 1. NOTE The minimum height of the upper to be tested is given as 40 % of the height of the upper footwear, as given the Table 4 of EN ISO 20345:2011 (for type B-C and D). Table 1 — Minimum height (Xmhu) to be tested Footwear size Height (Xmhu) French size UK size Design A mm Design B mm Design C mm Design D mm 36 and below up to 3 1/2 35 41 65 102 37 and 38 4 to 5 35 42 66 104 39 and 40 5 1/2 to 6 1/2 35 44 69 108 41 and 42 7 to 8 35 45 71 112 43 and 44 8 1/2 to 10 35 47 74 116 45 and above 10 1/2 and above 35 48 77 120 4.2.2.4 Minimum height of the upper The minimum height of the upper (Hum) is given by Formula (1): Hum = Xmhu + h (1) SIST EN 50321-1:2018

minimum height of the upper Xmhu minimum height of upper to be tested h
clearance to the level of water (see Table 5) 4.2.2.5 Requirement for the height of the upper The height of the upper of the footwear (X) is measured on the 3 tested sizes (smallest, largest and medium). For each size (X) shall be greater or equal to Hum (see 4.2.2.4). 4.3 Electrical requirements Electrical Insulating footwear and overboots shall pass an AC proof voltage test and a withstand voltage test according to its electrical classification, Additional DC voltage testing on electrical insulating footwear and overboots shall pass an AC proof voltage test and withstand test and a DC proof voltage test. Table 2 — Proof test voltage, proof test current and withstand test voltage for footwear Class of footwear AC Proof test voltage kV r.m.s. AC Proof test current mA r.m.s. AC Withstand test voltage kV r.m.s.
DC Proof voltage average kV Design (EN ISO 20345/EN ISO 20347) A B C D 00 2,5 1 1,5 2 3 5 10 0 5 2 2,5 4 5 10 20 1 10 N/a N/a 8 10 20 40 2 20 N/a N/a 18 18 30 50 3 30 N/a N/a 20 20 40 N/a 4 40 N/a N/a 24 24 50 N/a N/a – not applicable Table 3 — Proof test voltage, proof test current and withstand test voltage for overboots Class of footwear AC Proof test voltage kV r.m.s. AC Proof test current mA r.m.s. AC Withstand test voltage kV r.m.s.
DC Proof voltage average kV Design A B C D 00 2,5 2 3 4 5 5 10 0 5 5 6 7 8 10 20 1 10 N/a N/a 15 16 20 40 2 20 N/a N/a 18 18 30 50 3 30 N/a N/a 20 20 40 N/a 4 40 N/a N/a 24 24 50 N/a N/a – not applicable 4.4 Marking 4.4.1 The electrical insulating footwear and overboots shall be first marked according to Clause 7 of EN ISO 20345:2011 or Clause 7 of EN ISO 20347:2012 or Clause 7 of EN ISO 20346:2014 Additional marking to comply with this standard shall be the following: SIST EN 50321-1:2018
...