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BS IEC 62086-2 : 2001 AMD 16068

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

ELECTRICAL APPARATUS FOR EXPLOSIVE GAS ATMOSPHERES - ELECTRICAL RESISTANCE TRACE HEATING - PART 2: APPLICATION GUIDE FOR DESIGN, INSTALLATION AND MAINTENANCE
Superseded date

29-09-2006

Published date

23-11-2012

Foreword
Clause
1 Scope
2 Normative references
3 Definitions
4 Applications considerations
   4.1 General
   4.2 Corrosive areas
   4.3 Installation considerations
   4.4 Process temperature accuracy
5 Thermal insulation
   5.1 General
   5.2 Selection of insulating material
   5.3 Selection of weather barrier (cladding)
   5.4 Selection of economical thickness
6 System design
   6.1 Introduction
   6.2 Purpose of, and major requirement for, trace
        heating
   6.3 Heat loss calculations
   6.4 Heat-up considerations
   6.5 Heat-loss design safety factor
   6.6 Selection of trace heater
   6.7 Maximum temperature determination
   6.8 Design information
   6.9 Power system
   6.10 Start-up at low ambient temperatures
   6.11 Long cable runs
   6.12 Flow pattern analysis
   6.13 Dead-leg control technique
   6.14 Chimney effect
7 Control and monitoring equipment
   7.1 General
   7.2 Mechanical controllers
   7.3 Electronic controllers
   7.4 Application suitability
   7.5 Location of controllers
   7.6 Location of sensors
   7.7 Alarm considerations
8 Recommendations for installation, testing and
   maintenance
   8.1 Introduction
   8.2 Application
   8.3 Preparatory work
   8.4 Installation of trace-heating systems
   8.5 Installation of trace heaters
   8.6 Installation of control and monitoring equipment
   8.7 Installation of thermal insulation system
        (see also clause 5)
   8.8 Commissioning
   8.9 Maintenance
   8.10 Repairs

Gives guidance for the application of electrical resistance trace-heating systems in areas where explosive gas atmospheres may be present. Also gives recommendations for the design, installation and maintenance of trace-heating equipment and associated control and monitoring equipment.

Committee
GEL/31/14
DevelopmentNote
Supersedes 97/201655 DC. (06/2005) Renumbered and superseded by BS EN 62086-2. (09/2006)
DocumentType
Standard
PublisherName
British Standards Institution
Status
Superseded
SupersededBy
Supersedes

Standards Relationship
IEC 62086-2:2001 Identical

PD 6686:2006 Guidance on directives, regulations and standards related to prevention of fire and explosion in the process industries

IEC 60079-1:2014 RLV Explosive atmospheres - Part 1: Equipment protection by flameproof enclosures "d"
IEC 60079-10:2002 Electrical apparatus for explosive gas atmospheres - Part 10: Classification of hazardous areas
IEC 60079-17:2013 Explosive atmospheres - Part 17: Electrical installations inspection and maintenance
IEC 60079-0:2011 Explosive atmospheres - Part 0: Equipment - General requirements
IEC 60079-14:2013 Explosive atmospheres - Part 14: Electrical installations design, selection and erection

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