INTERNATIONAL ELECTROTECHNICAL COMMISSION (IEC)
IEC SCHEME FOR CERTIFICATION TO STANDARDS RELATING TO EQUIPMENT FOR USE IN EXPLOSIVE ATMOSPHERES (IECEx SCHEME)
IECEx OPERATIONAL DOCUMENT
No. Ex OD 015 Version 1
Title: Technical Requirements for IECEx Service Facilities involved in repair, overhaul and modification of Ex equipment.
IECEx Operational Document
This Operational Document sets out requirements that supplement the general requirements of IEC 60079-19 and is based on and in full alignment with work underway within IEC SC 31J MT6 concerning the revision of IEC 60079-19. It is planned that once the new Edition to IEC 60079-19 is published, this OD 015 will be reviewed with the intent to withdraw those requirements that are covered by the new IEC 60079-19.
Use of this OD 015 is necessary in order for the IECEx Scheme to move forward and meet industry demands in providing a single global assessment and certification system for Ex Repair and Overhaul Facilities.
Document History
Date Summary
2006 07 Original Issue (Version 1)
INTRODUCTION
This IECEx Operational Document is to be used by IECEx Certification Bodies, ExCBs when evaluating Ex repair and Overhaul Facilities.
The procedures, systems and methods of repair as set out in this document are to be followed by Ex Repair Facilities involved in the repair and overhaul of Ex equipment.
IECEx acknowledges the source of this document being the IEC SC31J MT60079-19 and expresses its appreciation for the work of this Group.
It is anticipated that once the revision of IEC 60079-19 is finalised and published that this Operational Document will be withdrawn and replaced with the revised IEC 60079-19.
IECEx notes that this document represents a major revision of IEC 60079-19 which includes additional requirements and therefore determines that this Operational Document encompasses all requirements of IEC 60079-19. Therefore compliance with this Operational Document will also result in meeting the requirements of First Edition IEC 60079-19.
CONTENTS
1 Scope 10
2 Normative references 10
3 Definitions and terms 12
4 General 14
4.1 General Principles 14
4.2 Statutory requirements 14
4.2.1 The repair facility 14
4.2.2 The user 14
4.3 Instructions for the user 15
4.3.1 Certificates and documents 15
4.3.2 Records and work instructions 15
4.3.3 Re-installation of repaired equipment 15
4.3.4 Repair facilities 15
4.4 Instructions for the repair facility 15
4.4.1 Repair and overhaul 15
4.4.2 Reclamations 18
4.4.3 Modifications 21
4.4.4 Temporary repairs 22
4.4.5 Removal of damaged windings 22
4.4.6 Inverters 22
5 Additional requirements for the repair and overhaul of equipment with type of protection "d" (flameproof) 23
5.1 Application 23
5.2 Repair and overhaul 23
5.2.1 Enclosures 23
5.2.2 Cable and conduit entries 23
5.2.3 Terminations 23
5.2.4 Insulation 23
5.2.5 Internal connections 24
5.2.6 Windings 24
5.2.7 Auxiliary equipment 25
5.2.8 Light transmitting parts 25
5.2.9 Encapsulated parts 25
5.2.10 Batteries 25
5.2.11 Lamps 25
5.2.12 Lampholders 25
5.2.13 Ballasts 26
5.3 Reclamation 26
5.3.1 Enclosures 26
5.3.2 Sleeving 26
5.3.3 Shafts and housings 27
5.3.4 Sleeve bearings 27
5.3.5 Rotors and stators 27
5.4 Modifications 27
5.4.1 Enclosures 27
5.4.2 Cable or conduit entries 27
5.4.3 Terminations 27
5.4.4 Windings 27
5.4.5 Auxiliary equipment 28
6 Additional requirements for the repair and overhaul of equipment with type of protection "i" (intrinsic safety) 29
6.1 Application 29
6.2 Repair and overhaul 29
6.2.1 Enclosures 29
6.2.2 Cable entries 29
6.2.3 Terminations 29
6.2.4 Soldered connections 29
6.2.5 Fuses 29
6.2.6 Relays 30
6.2.7 Shunt diode safety barriers 30
6.2.8 Printed circuit boards 30
6.2.9 Optocouplers 30
6.2.10 Electrical components 30
6.2.11 Batteries 30
6.2.12 Internal wiring 30
6.2.13 Transformers 30
6.2.14 Encapsulated components 31
6.2.15 Non-electrical parts 31
6.2.16 Testing 31
6.3 Reclamation 31
6.4 Modifications 31
7 Additional requirements for the repair and overhaul of equipment with type of protection "p" (pressurized) 32
7.1 Application 32
7.2 Repair and overhaul 32
7.2.1 Enclosures 32
7.2.2 Cable and conduit entries 32
7.2.3 Terminations 32
7.2.4 Insulation 32
7.2.5 Internal connections 32
7.2.6 Windings 32
7.2.7 Light transmitting parts 33
7.2.8 Encapsulated parts 34
7.2.9 Batteries 34
7.2.10 Lamps 34
7.2.11 Lampholders 34
7.2.12 Ballasts 34
7.3 Reclamation 34
7.3.1 Enclosures 34
7.3.2 Shafts and housings 34
7.3.3 Sleeve bearings 34
7.3.4 Rotors and stators 35
7.4 Modifications 35
7.4.1 Enclosures 35
7.4.2 Cable and conduit entries 35
7.4.3 Terminations 35
7.4.4 Windings 35
7.4.5 Auxiliary equipment 35
8 Additional requirements for the repair and overhaul of equipment with type of protection "e" (increased safety) 36
8.1 Application 36
8.2 Repair and overhaul 36
8.2.1 Enclosures 36
8.2.2 Cable or conduit entries 36
8.2.3 Terminations 36
8.2.4 Insulation 37
8.2.5 Internal connections 37
8.2.6 Windings 37
8.2.7 Light transmitting parts 38
8.2.8 Encapsulated parts 38
8.2.9 Batteries 39
8.2.10 Lamps 39
8.2.11 Lampholders 39
8.2.12 Ballasts 39
8.3 Reclamation 39
8.3.1 Enclosures 39
8.3.2 Sleeve bearings 40
8.3.3 Rotors and stators 40
8.4 Modifications 40
8.4.1 Enclosures 40
8.4.2 Cable and conduit entries 40
8.4.3 Terminations 40
8.4.4 Windings 40
8.4.5 Auxiliary equipment 40
9 Additional requirements for the repair and overhaul of equipment with type of protection "n" (non-sparking) 41
9.1 Application 41
9.2 Repair and overhaul 41
9.2.1 Enclosures 41
9.2.2 Cable and conduit entries 41
9.2.3 Terminations 41
9.2.4 Insulation 42
9.2.5 Internal connections 42
9.2.6 Windings 42
9.2.7 Temperature sensors 43
9.2.8 Light transmitting parts 43
9.2.9 Encapsulated parts 43
9.2.10 Batteries 43
9.2.11 Lamps 43
9.2.12 Lamp holders 43
9.2.13 Ballasts 44
9.2.14 Enclosed break devices 44
9.3 Reclamation 44
9.3.1 Enclosures 44
9.3.2 Joints 44
9.3.3 Rotating machines 44
9.4 Modifications 45
9.4.1 Enclosures 45
9.4.2 Cable and conduit entries 45
9.4.3 Terminations 45
9.4.4 Windings 45
9.4.5 Auxiliary equipment 45
10 Additional requirements for the repair and overhaul of equipment covered by IEC 60079-26 46
11 Additional requirements for the repair and overhaul of equipment with type of protection ‘tD’ 47
11.1 Application 47
11.2 Repair and overhaul 47
11.2.1 Enclosures 47
11.2.2 Cable and conduit entries 48
11.2.3 Insulation 48
11.2.4 Internal connections 48
11.2.5 Windings 48
11.2.6 Temperature sensors 49
11.2.7 Light transmitting parts 49
11.2.8 Lamps 49
11.3 Reclamation 49
11.3.1 Enclosures 49
11.3.2 Joints 49
11.3.3 Rotating machines 50
11.4 Modifications 50
11.4.1 Enclosures 50
11.4.2 Cable and conduit entries 50
11.4.3 Windings 50
11.4.4 Auxiliary equipment 50
12 Additional requirements for the repair and overhaul of equipment with type of protection pressurization ‘pD’ 51
12.1 Application 51
12.2 Repair and overhaul 51
12.3 12.3 Reclamation 51
12.4 12.4 Modifications 51
Annex A (normative) Identification of repaired equipment by marking 52
A.1 Marking information 52
A.2 Symbols 52
A.2.1 In accordance with Certification and/or manufacturers specification 52
A.2.2 In accordance with Standards but not the certification documents 52
A.2.3 Other situations 53
Annex B (normative) Knowledge, skills and competencies of “Responsible Persons” and “Operatives” 54
B.1 Scope 54
B.2 Knowledge and skills 54
B.2.1 Responsible Persons 54
B.2.2 Operatives 54
B.3 Competencies 54
B.3.1 General 54
B.3.2 Responsible Persons 55
B.3.3 Operatives 55
B.4 Assessment 55
Annex C (normative) Requirements for measurements in flameproof equipment during overhaul, repair and reclamation (including guidance on tolerances) 56
C.1 General 56
INTERNATIONAL ELECTROTECHNICAL COMMISSION
EXPLOSIVE ATMOSPHERES –
Part 19: Equipment – Repair, overhaul and Reclamation
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