oSIST prEN 50365:2021

SLOVENSKI STANDARD
oSIST prEN 50365:2021
01-januar-2021
Nadomešča:
SIST EN 50365:2002
Delo pod napetostjo - Elektroizolacijske čelade za delo na nizko- in
srednjenapetostnih inštalacijah
Live Working - Electrically insulating helmets for use on low and medium voltage
installations
Elektrisch isolierende Helme für Arbeiten an Niederspannungsanlagen
Casques électriquement isolants pour utilisation sur installations à basse tension
Ta slovenski standard je istoveten z: prEN 50365
ICS:
13.260 Varstvo pred električnim Protection against electric
udarom. Delo pod napetostjo shock. Live working
13.340.20 Varovalna oprema za glavo Head protective equipment
oSIST prEN 50365:2021 en,fr
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 50365:2021

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oSIST prEN 50365:2021

EUROPEAN STANDARD DRAFT
prEN 50365
NORME EUROPÉENNE

EUROPÄISCHE NORM

November 2020
ICS  Will supersede EN 50365:2002 and all of its
amendments and corrigenda (if any)
English Version
Live Working - Electrically insulating helmets for use on low and
medium voltage installations
Casques électriquement isolants pour utilisation sur Elektrisch isolierende Helme für Arbeiten an
installations à basse tension Niederspannungsanlagen
This draft European Standard is submitted to CENELEC members for enquiry.
Deadline for CENELEC: 2021-02-05.

It has been drawn up by CLC/TC 78.

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,
Turkey 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
© 2020 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Project: 66984 Ref. No. prEN 50365 E

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oSIST prEN 50365:2021
prEN 50365:2020 (E)
1 Contents Page
2 European foreword .3
3 1 Scope .4
4 2 Normative references .4
5 3 Terms and definitions .4
6 4 Requirements .5
7 4.1 General .5
8 4.2 Non-electrical requirements.5
9 4.3 Electrical requirements .6
10 4.4 Marking .6
11 4.5 Packaging .7
12 4.6 Instruction of use .7
13 5 Testing .8
14 5.1 General .8
15 5.2 Non-electrical type tests .8
16 5.3 Electrical type tests .8
17 5.4 Marking . 11
18 5.5 Packaging . 12
19 5.6 Instructions of use . 12
20 5.7 Alternative test after production . 12
21 6 Conformity assessment of electrically insulating helmets having completed the production
22 phase . 13
23 7 Modifications . 13
24 Annex A (normative) Suitable for live working: double triangle (IEC-60417:2002-10) . 14
25 Annex B (normative) Chronological order for electrical type testing . 15
26 Annex C (informative) Additional information to be supplied by the manufacturer in addition to the
27 instructions for use . 16
28 Annex D (normative) Classification of tests and defects to be allocated . 19
29 Annex E (informative) Rationale for the classification of defects . 20
30 Annex ZA (informative) Regulation (EU) 2016/425 of the European Parliament and of the Council
31 of 9 March 2016 on personal protective equipment and repealing Council Directive
32 89/686/EEC . 21
33 Bibliography . 22
34
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oSIST prEN 50365:2021
prEN 50365:2020 (E)
35 European foreword
36 This document (EN 50365:2020) has been prepared by CLC/TC 78 “Equipment and tools for live working”.
37 The following dates are fixed:
• latest date by which the existence of this (doa) dor + 6 months
document has to be announced at national
level
• latest date by which this document has to (dop) dor + 12 months
be implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national standards (dow) dor + 36 months
conflicting with this document have to be (to be confirmed
withdrawn or
38 This document will supersede EN 50365:2002.

39 EN 50365:2020 includes the following significant technical changes with respect to EN 50365:2002
40 ▪ Change of scope to test helmets up to electrical Class 2
41 ▪ Update on normative references
42 ▪ Definitions for Brim and Crown
43 ▪ Helmet design types Type 1 and 2
44 ▪ Additional marking required for voltage AC or AC/DC and design type
45 ▪ DC requirements and testing
46 ▪ Routine testing for all AC or AC/DC helmets
47 ▪ Removal of air hole design
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prEN 50365:2020 (E)
48 1 Scope
49 This document specifies the requirements and testing for electrically insulating helmets that provide head
50 protection of the worker against electric shock used for working live or close to live parts on installations
51 not exceeding 17 000 V AC or 1 500 V DC
52 The products designed and manufactured according to this document contribute to the safety of the users
53 provided they are used by skilled persons, in accordance with safe methods of work and the instructions
54 for use.
55 This document does not cover arc flash or additional helmet accessories such as face shields, ear
56 defenders, lamps and devices for indicating the presence of voltage.
57 2 Normative references
58 The following documents are referred to in the text in such a way that some or all of their content constitutes
59 requirements of this document. For dated references, only the edition cited applies. For undated references,
60 the latest edition of the referenced document (including any amendments) applies.
61 EN 397:2012+A1:2012, Industrial safety helmets
62 EN 443:2008, Helmets for fire fighting in buildings and other structures
63 EN 14052:2012+A1:2012, High performance industrial helmets
64 EN 60060-2:2011, High-voltage test techniques - Part 2: Measuring systems (IEC 60062-2:)
65 EN 61318:2008, Live working - Conformity assessment applicable to tools, devices and equipment
66 ISO 6344-1:1998, Coated abrasives — Grain size analysis — Part 1: Grain size distribution test
67 3 Terms and definitions
68 For the purposes of the present document, the following terms and definitions apply.
69 ISO and IEC maintain terminological databases for use in standardization at the following addresses:
70 • ISO Online browsing platform: available at https://www.iso.org/obp
71 • IEC Electropedia: available at http://www.electropedia.org/
72 3.1
73 brim
74 rim surrounding the shell
75 [SOURCE: ISO 3873:1977,3.4]
76 3.2
77 crown
78 portion of the helmet that covers the head above the reference plane
79 [SOURCE: ISO/TR 19591:2018, 3,70]
80 3.3
81 electrically insulating helmet
82 safety helmet which protects the wearer against electrical shocks by preventing the passage of dangerous
83 current through the body via the head
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84 3.4
85 proof test voltage
86 specified value of voltage that is applied to a device, item or component for the time defined under specified
87 conditions to ensure that the electrical strength of the insulation is above a specified value
88 3.5
89 routine test
90 conformity test made on each individual item during or after manufacture
91 [SOURCE IEC 60050-151: 2001, 151-16-17]
92 3.6
93 sampling test
94 test performed on a number of devices taken at a random from a batch
95 [SOURCE IEC 60050-151: 2001, 151-16-20]
96 3.7
97 type test
98 test performed on one or more devices made to a certain design to show that the design meets certain
99 specifications
100 [SOURCE IEC 60050-151: 2001, 151-16-16]
101 3.8
102 shell
103 hard, smoothly finished material that provides the general outer form of the helmet
104 [SOURCE: EN 397:2012, 3.2]
105 3.9
106 withstand test voltage
107 specified value of voltage that a device, item or component must withstand without flashover, disruptive
108 discharge, puncture or other electric failure when that value of voltage is applied under specified conditions
109 4 Requirements
110 4.1 General
111 Electrically insulating helmets shall fulfil the following requirements.
112 4.2 Non-electrical requirements
113 4.2.1 General
114 Electrically insulating helmets shall fulfil the non-electrical requirements of EN 397:2012+A1: 2012 or
115 EN 443:2008 or EN 14052:2012+A1:2012. The applicable non-electrical requirements will not conflict with
116 the electrical requirements and tests.
117 4.2.2 Helmet Design
118 Electrically insulating helmets shall not consist of conductive parts or material (see 6.2.1) and have no
119 aperture that affects the electrical insulating properties.
120 Electrically insulating helmets used on or near electrical installations shall be classified in by design to
121 protect the crown area of the head.
122 Type 1 – With a full brim greater than 30 mm at any point. (Figure 1)
123 Type 2 – Peak cap and no brim (Figure 2)
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124
125 Figure 1 — Type 1 helmet design
126
127 Figure 2 — Type 2 helmet designs
128 4.3 Electrical requirements
129 4.3.1 General
130 Electrically insulating helmet shell shall pass, for AC use, an AC proof voltage test and an AC withstand
131 voltage test according to 5.3.4 and 5.3.5 and, for AC/DC use, an AC proof voltage test, an AC withstand
132 voltage test and a DC proof voltage test according to 5.3.4, 5.3.5 and 5.3.6.
133 4.3.2 Electrical Classification
134 Electrically insulating helmets used on or near electrical installations shall be classified in:
135 — electrical class 00 for installations with a maximum use voltage up to 500 V AC and 750 V DC;
136 — electrical class 0 for installations with a maximum use voltage up to 1 000 V AC and 1 500 V DC;
137 — electrical class 1 for installations with a maximum use voltage up to 7 500 V AC.
138 — electrical class 2 for installations with a maximum use voltage up to 17 000 V AC.
139 4.4 Marking
140 4.4.1 General
141 The electrically insulating helmet shall be first marked according to EN 397:2012+A1:2012 or EN 443:2008
142 or EN 14052:2012+A1:2012 for the non-electrical marking.
143 Additional marking to comply with this standard shall be the following.
144 Each electrically insulating helmet which claims to comply with the requirements of this standard, shall bear
145 a label and/or marking giving the following information:
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146 — symbol IEC 60417-5216:2002:10 – suitable for live working: double triangle (See Annex A);
147 NOTE The exact ratio of the height of the figure to the base of the triangle is 1,43. For the purpose of convenience, this
148 ratio can be between the values of 1,4 and 1,5.
149 — number of EN 50365:2020 standard immediately adjacent to the symbol;
150 — electrical class;
151 — voltage current tested “AC” or “AC/DC” according to voltage testing applied;
152 — design Type 1 or Type 2;
153 — serial or batch number;
154 — month and year of manufacture.
155 In addition, each unit of electrically insulating helmets shall have a strip or space to note the date of first
156 use, the date of examination or the date of each periodic inspection. This shall be located near the IEC
157 symbol.
158 The marking shall be durable, clearly legible on the bottom of the helmet shell peak or a visible area on the
159 internal or external surface and shall not impair its quality.
160 An example of marking is given in Annex B.
161 4.4.2 Colour code
162 If a colour code is used, the symbol (double triangle) shall be:
163 — Beige for class 00;
164 — Red for class 0;
165 — White for class 1;
166 — Yellow for class 2.
167 4.5 Packaging
168 The type of packaging suitable for transport shall be defined by the manufacturer.
169 The packaging of each electrically insulating helmet shall protect the helmet from damage that affect
170 electrical insulating properties.
171 The outside of packaging shall be marked with the name of the manufacturer or supplier, classification, size
172 and design.
173 4.6 Instruction of use
174 Each electrically insulating helmet shall be accompanied by the instructions for use, which contain the
175 information necessary for use, maintenance and the potential risk of limited effectiveness of electrical
176 insulation according to conditions of use (i.e. mechanical or chemical aggression). The non-electrical
177 information supplied by the manufacturer shall conform to EN 397:2012+A1:2012, EN 443:2008 or
178 EN 14052:2012+A1:2012
179 The instructions for use shall contain at least:
180 a) explanation of the symbol “double triangle”;
181 b) storage;
182 c) examination before use;
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183 d) precaution of use;
184 e) periodic inspection;
185 f) period of obsolesce;
186 g) significance of any markings;
187 h) explanation about use of Type 1 and Type 2 helmets;
188 Guidance for the use of electrically insulating helmets is given in Annex C.
189 5 Testing
190 5.1 General
191 Tests are type, routine and sampling tests.
192 5.2 Non-electrical type tests
193 The non-electrical type tests of EN 397:2012+A1:2012, EN 443:2008 or EN 14052:2012 shall be performed
194 before the electrical tests.
195 5.3 Electrical type tests
196 5.3.1 General
197 For type tests, three electrically insulating helmet shells shall be used. A type test shall be performed on
198 each helmet.
199 Electrical type tests shall be performed in a room where temperature is 23 °C ± 2 °C and
200 50 % ± 5 % relative humidity.
201 Electrical tests shall only be performed on whole helmet shells.
202 They shall be performed in the order given by Annex B.
203 Tests arrangements, power sources and procedures shall be in accordance with EN 60060-2: 2011.
204 Type and sampling tests are destructive, therefore tested helmet shells shall be destroyed after the
205 completion of the tests.
206 Electrically insulating helmet shell shall be submitted, for AC use, to an AC proof voltage test followed by
207 an AC withstand voltage test according to 5.3.4 and 5.3.5.
208 For AC/DC use, the electrically insulating helmet shell shall be submitted to an AC proof voltage test
209 followed by an AC withstand voltage test and after to a DC proof voltage test according to 5.3.4, 5.3.5 and
210 5.3.6.
211 5.3.2 Test arrangement
212 The electrically insulating h
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