prEN 14973

SLOVENSKI STANDARD
01-julij-2024
Naprave za kontinuirni transport - Trakovi tračnih transporterjev za podzemno
vgradnjo - Električne in požarnovarnostne zahteve
Conveyor belts for use in underground installations - Electrical and flammability safety
requirements
Fördergurte für die Verwendung unter Tage - Elektrische und brandtechnische
Sicherheitsanforderungen
Courroies transporteuses pour usage dans les installations souterraines - Exigences de
sécurité électrique et de protection contre l’inflammabilité
Ta slovenski standard je istoveten z: prEN 14973
ICS:
13.220.40 Sposobnost vžiga in Ignitability and burning
obnašanje materialov in behaviour of materials and
proizvodov pri gorenju products
53.040.20 Deli za transporterje Components for conveyors
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2024
ICS 53.040.10; 13.220.40 Will supersede EN 14973:2015
English Version
Conveyor belts for use in underground installations -
Electrical and flammability safety requirements
Courroies transporteuses pour usage dans les Fördergurte für die Verwendung unter Tage -
installations souterraines - Prescriptions de sécurité Elektrische und brandtechnische
électrique et protection contre l'inflammation Sicherheitsanforderungen
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 188.
If this draft becomes a European Standard, CEN 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 CEN in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC
Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
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 STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 14973:2024 E
worldwide for CEN national Members.

Contents Page
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 Ignition hazard assessment . 8
5 Electrical resistance . 8
6 Frictional heating . 8
6.1 Conveyor belts intended for general use in underground installations (Class A), and
for use in hazardous installations where secondary safety devices are present
(Classes B2 and C2) . 8
6.2 Conveyor belts intended for use in installations where there is a potentially
flammable atmosphere and where secondary safety devices are not present (Class
B1) . 9
6.3 Conveyor belts intended for use in installations where there is a potentially
flammable atmosphere plus combustible dust or material conveyed, and where
secondary safety devices are not present (Class C1) . 9
7 Resistance to ignition . 9
7.1 Conveyor belts intended for general use in underground installations (Class A), for
use where there is a potentially flammable atmosphere (Classes B1 and B2), and for
use in hazardous installations where secondary safety devices are present (Class C2)
........................................................................................................................................................................ 9
7.2 Conveyor belts intended for use in installations where there is a potentially
flammable atmosphere plus combustible dust or material conveyed, and where
secondary safety devices are not present (Class C1) . 9
8 Fire propagation . 10
8.1 General . 10
8.2 Conveyor belts intended for general use in underground installations (Class A) and
for use where there is a potentially flammable atmosphere (Classes B1 and B2) . 10
8.2.1 General . 10
8.2.2 Two metre propane burner test . 10
8.2.3 Double burner test . 10
8.2.4 Mid-scale high energy test . 11
8.3 Conveyor belts intended for use in installations where there is a potentially
flammable atmosphere plus combustible dust or material conveyed, and where
secondary safety devices are not present (Class C1) . 11
8.4 Conveyor belts intended for use in installations where there is a potentially
flammable atmosphere plus combustible dust or material conveyed, plus additional
fuel sources (fire load) and where secondary safety devices are present (Class C2) . 11
8.4.1 Full scale gallery . 11
8.4.2 Laboratory scale gallery . 11
9 Marking . 12
10 Test reports for conveyor belts used in underground installations . 12
Annex A (informative) Hazards and risk assessment .14
A.1 Identification of hazards.14
A.2 Risk assessment .14
A.3 Methods for addressing hazards .15
Annex B (informative) Example of an ignition hazard assessment for a conveyor belt
intended for use in a potentially explosive atmosphere .16
Annex C (informative) Suggested conveyor belt approval/compliance options .17
Annex ZA (informative) Relationship between this European Standard and the essential
Health and Safety Requirements of Directive 2014/34/EU aimed to be covered .20
Annex ZB (informative) Relationship between this European Standard and the essential
requirements of Directive 2006/42/EC aimed to be covered .22
Annex ZC (informative) Relationship between this European Standard and the essential
requirements of Regulation (EU) 2023/1230 aimed to be covered .23
Bibliography .24
European foreword
This document (prEN 14973:2024) has been prepared by Technical Committee CEN/TC 188
“Conveyor belts”, the secretariat of which is held by SNV.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 14973:2015.
Significant technical changes between this document and the previous edition of this European
Standard:
— The EN 1554 standard has been replaced by EN ISO 20238:2019. The corresponding technical
revisions have been made.
— A new Clause 10 “ 10 Test reports for conveyor belts used in underground installations” has
been added. The definition of the construction series has been revised and described in details.
This document has been prepared under a standardization request addressed to CEN 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 ZA, Annex ZB and Annex ZC, which
are an integral part of this document.
Introduction
This document is a type C standard as stated in EN ISO 12100:2010.
The machinery concerned and the extent to which hazards, hazardous situations and events are
covered are indicated in the scope of this document.
When provisions of this type C standard are different from those which are stated in type A or B
standards, the provisions of this type C standard take precedence over the provisions of the other
standards, for machines that have been designed and built according to the provisions of this type C
standard.
The approach taken in this European Standard is to identify the main hazards encountered in
underground conveying applications and to specify requirements for conveyor belts that will
provide the necessary operational safety. Three Classes are specified, A, B and C, as defined in 3.9 to
3.11.
NOTE According to national authorities Class C (C1/C2) conveyor belts are requested for use in EU coal
mining.
1 Scope
This document specifies electrical and flammability safety requirements for conveyor belts intended
for use in underground installations, in the presence of flammable or non-flammable atmospheres.
Conveyor belts covered by this document and intended for use in flammable atmospheres are
intended for use on conveyor belt installations (machinery in mines). The belt is a component or part
of equipment, which can be incorporated into the conveyor, which is an equipment of Group I,
Category M2, as defined in 3.2.2 of EN ISO 80079-36:2016.
This document is not applicable to light conveyor belts as described in EN ISO 21183-1:2006 nor is
it applicable to conveyor belts which are manufactured before the date of publication of this
document by CEN.
This document deals with those significant hazards detailed in A.1.
Attention is drawn to Annexes ZA and ZB.
NOTE A summary of the requirements of this document is given in Table 2. This is intended for quick
reference only.
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 12881-1:2014, Conveyor belts — Fire simulation flammability testing — Part 1: Propane burner
tests
EN 12881-2:2005+A1:2008, Conveyor belts — Fire simulation flammability testing — Part 2: Large
scale fire test
EN ISO 284:2012, Conveyor belts — Electrical conductivity — Specification and test method
(ISO 284:2012)
EN ISO 340:2022, Conveyor belts — Laboratory scale flammability characteristics — Requirements
and test method (ISO 340:2022)
EN ISO 12100:2010, Safety of machinery — General principles for design — Risk assessment and risk
reduction (ISO 12100:2010)
EN ISO 15236-3:2017, Steel cord conveyor belts — Part 3: Special safety requirements for belts for use
in underground installations (ISO 15236-3:2017)
EN ISO 20238:2019, Conveyor belts — Drum friction testing (ISO 20238:2018)
EN ISO 227
...