Safety in electroheat installations -- Part 10: Particular requirements for electrical resistance trace heating systems for industrial and commercial applications

Deals with safety requirements for electrical resistance trace heating systems in industrial and commercial applications. Pertains to trace heating systems that may comprise either factory fabricated or field (work-site) assembled units, and which may be series heater cables, parallel heater cables, heater pads or heater panels.

Sicherheit in Elektrowärmeanlagen -- Teil 10: Besondere Anforderungen an elektrische Trace-Widerstandsheizungen für industrielle und gewerbliche Zwecke

Sécurité dans les installations électrothermiques -- Partie 10: Règles particulières pour les systèmes de chauffage par traçage à résistance électrique pour applications industrielles et commerciales

Donne les exigences de sécurité pour les systèmes de chauffage par traçage à résistance électrique utilisés dans les applications industrielles et commerciales. Traite des systèmes de chauffage par traçage pouvant comprendre soit des unités fabriquées en usine soit des unités assemblées sur site et qui peuvent être des câbles chauffants en série, des câbles chauffants en parallèle, des rampes chauffantes ou des panneaux chauffants.

Varnost pri električnih grelnih inštalacijah – 10. del: Posebne zahteve za industrijske in komercialne sisteme za uporovno gretje (IEC 60519-10:2005)

General Information

Status
Withdrawn
Publication Date
30-Nov-2005
Withdrawal Date
06-Jun-2016
Technical Committee
Current Stage
9900 - Withdrawal (Adopted Project)
Start Date
07-Jun-2016
Due Date
30-Jun-2016
Completion Date
07-Jun-2016

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SIST EN 60519-10:2005SLOVENSKIdecember 2005

STANDARDVarnost pri električnih grelnih inštalacijah – 10. del: Posebne zahteve za industrijske in komercialne sisteme za uporovno gretje (IEC 60519-10:2005)Safety in electroheat installations – Part 10: Particular requirements for electrical resistance trace heating systems for industrial and commercial applications (IEC 60519-10:2005)©

Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljenoReferenčna številkaSIST EN 60519-10:2005(en)ICS25.180.10

EUROPEAN STANDARD
EN 60519-10 NORME EUROPÉENNE EUROPÄISCHE NORM

September 2005 CENELEC European Committee for Electrotechnical Standardization Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels

© 2005 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. EN 60519-10:2005 E
ICS 25.180.10
English version

Safety in electroheat installations Part 10: Particular requirements for electrical resistance trace heating systems for industrial and commercial applications (IEC 60519-10:2005)

Sécurité dans les installations électrothermiques Partie 10: Règles particulières pour

les systèmes de chauffage par traçage

à résistance électrique pour applications industrielles et commerciales (CEI 60519-10:2005)

Sicherheit in Elektrowärmeanlagen Teil 10: Besondere Anforderungen an elektrische Trace-Widerstandsheizungen für industrielle und gewerbliche Zwecke (IEC 60519-10:2005)

This European Standard was approved by CENELEC on 2005-08-01. 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 Central Secretariat 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 Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

EN 60519-10:2005 - 2 - Foreword The text of document 27/468/FDIS, future edition 1 of IEC 60519-10, prepared by IEC TC 27, Industrial electroheating equipment, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 60519-10 on 2005-08-01. This part of EN 60519 shall be used in conjunction with EN 60519-1:2003. The following dates were fixed: – latest date by which the EN has to be implemented

at national level by publication of an identical
national standard or by endorsement
(dop)
2006-05-01 – latest date by which the national standards conflicting
with the EN have to be withdrawn
(dow)

2008-08-01 Annex ZA has been added by CENELEC. __________ Endorsement notice The text of the International Standard IEC 60519-10:2005 was approved by CENELEC as a European Standard without any modification. __________

- 3 - EN 60519-10:2005
Annex ZA
(normative)
Normative references to international publications

with their corresponding European publications The following referenced documents are indispensable for the application 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. NOTE Where an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. Publication Year Title EN/HD Year IEC 60050-841 - 1) International electrotechnical vocabulary Part 841: Industrial electroheat

- - IEC 60364-1 - 1) Electrical installations of buildings Part 1: Fundamental principles, assessment of general characteristics, definitions

- - IEC 60364-5-51 - 1) Part 5-51: Selection and erection of electrical equipment - Common rules

- - IEC 60446 - 1) Basic and safety principles for man-machine interface, marking and identification - Identification of conductors by colours or numerals

EN 60446 1999 2) IEC 60519-1 2003 Safety in electroheat installations Part 1: General requirements EN 60519-1 2003

1) Undated reference. 2) Valid edition at date of issue.

NORME INTERNATIONALECEIIEC INTERNATIONAL STANDARD 60519-10Première éditionFirst edition2005-07 Sécurité dans les installations

électrothermiques – Partie 10: Règles particulières pour les systèmes de chauffage par traçage à résistance électrique pour applications industrielles et commerciales

Safety in electroheat installations – Part 10: Particular requirements for electrical resistance trace heating systems for industrial and commercial applications

Pour prix, voir catalogue en vigueur For price, see current catalogue IEC 2005
Droits de reproduction réservés

Copyright - all rights reserved Aucune partie de cette publication ne peut être reproduite ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie et les microfilms, sans l'accord écrit de l'éditeur. No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. International Electrotechnical Commission,

3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, SwitzerlandTelephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch

Web: www.iec.ch CODE PRIX PRICE CODE P Commission Electrotechnique InternationaleInternational Electrotechnical Commission

60519-10  IEC:2005 – 3 –

CONTENTS FOREWORD...........................................................................................................................5 INTRODUCTION.....................................................................................................................9

1 Scope and object............................................................................................................11 2 Normative references.....................................................................................................11 3 Terms and definitions.....................................................................................................13 4 Classification of trace heaters according to voltage bands..............................................17 5 Classification of trace heaters according to frequency bands..........................................17 6 General requirements.....................................................................................................17 6.1 Trace heating system............................................................................................17 6.2 Typical applications...............................................................................................17 6.3 Use of certified equipment.....................................................................................19 7 Electrical supply requirements........................................................................................21 7.1 Isolation and switching..........................................................................................21 7.2 Connection to the supply network and internal connections...................................21 7.3 Protection against electric shock...........................................................................21 7.4 Electrical safety.....................................................................................................21 8 Trace heating system design..........................................................................................23 8.1 System design components and characteristics.....................................................23 8.2 Control and monitoring equipment.........................................................................23 9 Installation......................................................................................................................25 9.1 General.................................................................................................................25 9.2 Preparation...........................................................................................................27 9.3 During installation.................................................................................................27 9.4 After trace heater installation.................................................................................27 10 Maintenance and repair..................................................................................................29 10.1 Qualified individuals..............................................................................................29 10.2 Systematic inspections..........................................................................................29 10.3 Maintenance guidelines.........................................................................................29 10.4 Repair guidelines..................................................................................................31

60519-10  IEC:2005 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION ____________
SAFETY IN ELECTROHEAT INSTALLATIONS –

Part 10: Particular requirements for electrical resistance trace heating systems for industrial and commercial applications

FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non-governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees.

3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter. 5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any equipment declared to be in conformity with an IEC Publication. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications.

8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 60519-10 has been prepared by IEC technical committee 27: Industrial electroheating equipment. This part of IEC 60519 shall be used in conjunction with the third edition of IEC 60519-1. The text of this standard is based on the following documents: FDIS Report on voting 27/468/FDIS 27/487/RVD

Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table.

60519-10  IEC:2005 – 7 –

This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. IEC 60519 consists of the following parts, under the general title Safety in electroheat installations: Part 1:

General requirements Part 2:
Particular requirements for resistance heating equipment Part 3:

Particular requirements for induction and conduction heating and induction melting installations Part 4:

Particular requirements for arc furnace installations Part 5:
Specifications for safety in plasma installations Part 6:
Specifications for safety in industrial microwave heating equipment Part 7:
Particular requirements for installations with electron guns Part 8:
Particular requirements for electroslag remelting furnaces Part 9:

Particular requirements for high-frequency dielectric heating installations Part 10:

Particular requirements for electrical resistance trace heating systems for industrial and commercial applications Part 11:

Particular requirements for installations for electromagnetic stirring, transport or pouring of metal liquids Part 21:

Particular requirements for resistance heating equipment – Heating and melting glass equipment NOTE If necessary, additional parts covering particular industrial electroheat equipment may be considered. The committee has decided that the contents of this publication will remain unchanged until the maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in the data related to the specific publication. At this date, the publication will be

• reconfirmed; • withdrawn; • replaced by a revised edition, or • amended.
60519-10  IEC:2005 – 9 –

INTRODUCTION This part of IEC 60519 provides safety requirements for electrical resistance trace heating systems used in industrial and commercial applications for piping, vessels, roofs, concrete slab heating and other similar applications. It is the objective of this standard that, when in accordance with the standard, electrical trace heating systems shall operate safely under their normal defined conditions of use, by a) employing heaters of the appropriate construction and meeting the test criteria detailed in a separate document that is under consideration (future IEC 62395-1); b) operating at safe temperatures when designed, installed, and maintained in accordance with a separate document that is under consideration (future IEC 62395-2); c) having at least the minimum levels of overcurrent and ground-fault protection, and an evenly distributed electrically conductive metallic braid, sheath or other equivalent electrically conductive material, as specified in these documents. NOTE Projects under consideration by TC 27/WG 17:

− IEC 62395-1, Electrical resistance trace heating systems for industrial and commercial applications – Part 1: General and testing requirements − IEC/TS 62395-2, Electrical resistance trace heating systems for industrial and commercial applications –

Part 2: Recommendations for system design, installation and maintenance
60519-10  IEC:2005 – 11 –
SAFETY IN ELECTROHEAT INSTALLATIONS –

Part 10: Particular requirements for electrical resistance trace heating systems for industrial and commercial applications

1 Scope and object This part of IEC 60519 deals with safety requirements for electrical resistance trace heating systems in industrial and commercial applications. This standard pertains to trace heating systems that may comprise either factory fabricated or field (work-site) assembled units, and which may be series heater cables, parallel heater cables, heater pads or heater panels that have been assembled and/or terminated in accordance with manufacturer’s instructions for connection to voltage supplies up to and including 450 V / 750 V. NOTE This is less than the voltage range of IEC 60519-1. Higher voltages are under consideration. Typical applications include but are not limited to • the freeze protection of pipes, tanks and vessels, including fire water systems; • maintaining required temperatures of equipment, including pipes, tanks and vessels; • earth thermal storage; • hot water temperature maintenance; • snow melting of surfaces; • de-icing of roofs and gutters. These applications do not include or provide for any applications in potentially explosive atmospheres. This standard does not cover induction, impedance or skin effect heating. NOTE Specific requirements and test criteria for electrical resistance trace heating systems and design, installation, and maintenance requirements for these systems will be detailed in separate documents that are under consideration (see Introduction). 2 Normative references The following referenced documents are indispensable for the application 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. IEC 60050-841, International Electrotechnical Vocabulary (IEV) – Part 841: Industrial electro-heat IEC 60364-1, Electrical installations of buildings – Part 1: Fundamental principles, assess-ment of general characteristics, definitions

60519-10  IEC:2005 – 13 –

IEC 60364-5-51, Electrical installations of buildings – Part 5-51: Selection and erection of electrical equipment – Common rules IEC 60446, Basic and safety principles for man-machine interface, marking and identification – Identification of conductors by colours or numerals IEC 60519-1:2003, Safety in electroheat installations – Part 1: General requirements 3 Terms and definitions For the purposes of this document, the terms and definitions given in IEC 60050-841, IEC 60519-1 and the following apply. 3.1

ambient temperature average temperature of air or another medium in the vicinity of the equipment [IEV 826-10-03]1 NOTE Where electrical trace heaters are enclosed in thermal insulation, the ambient temperature is the temperature exterior to such thermal insulation. 3.2

branch circuit that portion of the wiring installation between the overcurrent device protecting the circuit and the trace heater(s) 3.3 connections (terminations) 3.3.1 end termination termination, which may be heat producing, applied to a trace heater at the end opposite that where the power is supplied 3.3.2 integral components facto

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