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BS 638-7:1984

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Arc welding power sources, equipment and accessories Specification for safety requirements for installation and use
Available format(s)

Hardcopy , PDF

Superseded date

08-20-2002

Language(s)

English

Published date

01-31-1984

Foreword
Committees responsible
Specification
Section one. General
1. Scope
2. Definitions
Section two. Installation
3. General requirements
3.1 General
3.2 Earthing
3.3 No-load voltage
4. Electric circuits
4.1 Welding return
4.2 Earthing of the workpiece
4.3 Protective measures with respect to extraneous
     conductive parts in the welding area
4.4 Welding circuits
Section three. Use
5. General safety
5.1 Plant (power sources, equipment and accessories)
5.2 Power sources connected together
5.3 Inspection and maintenance of the welding
     installation
5.4 Disconnection of power sources
5.5 Enclosures and guards
5.6 Information for operators
5.7 Protective clothing and accessories
5.8 Isolation of electrode holders and torches
     when not in use
5.9 Voltage between electrode holders and torches
6. Earthing of the workpiece
7. Voltage
7.1 General
7.2 Several operators welding on the same workpiece
8. Welding in an environment with increased hazard
     of electric shock
Appendices
A. Information on legal requirements and publication
     regarding welding safety
B. Recommendations for the use of arc welding power
     sources, equipment and accessories
Figures
1. Diagrammatic representation of typical earthing
     points and return current connections
2. Diagram showing reason for NOT earthing the wire
     feed unit enclosure
3. No-load voltage between electrode holders
4. Diagrams showing reason for earthing the
     welding circuit at the workpiece

Additional recommendations supplement the requirements and there are also recommendations for welding in environments with increased hazard of electric shock.

Committee
WEE/6
DevelopmentNote
Implements CENELEC HD 407 and CENELEC HD 427
DocumentType
Standard
Pages
24
PublisherName
British Standards Institution
Status
Superseded
SupersededBy
Supersedes

Standards Relationship
IEC 60974-1:2017 Similar to

BS 6164:2011 Code of practice for health and safety in tunnelling in the construction industry
BS 638-6:1984 Arc welding power sources, equipment and accessories Specification for safety requirements for construction
BS 7418:1991 Code of practice for isolation of the welding circuit in arc welding plant
BS 7570:2000 Code of practice for validation of arc welding equipment
11/30218915 DC : DRAFT JAN 2011 BS 6164 - CODE OF PRACTICE FOR HEALTH AND SAFETY IN TUNNELING IN THE CONSTRUCTION INDUSTRY
VDE V 0544-50 : 1998 VALIDATION OF ARC WELDING EQUIPMENT
CEI ENV 50184 : 1997 VALIDATION OF ARC WELDING EQUIPMENT
BS 7570:1992 Code of practice for validation of arc welding equipment
DIN V ENV 50184 : 1998 VALIDATION OF ARC WELDING EQUIPMENT
BS 638-5:1988 Arc welding power sources, equipment and accessories Specification for accessories
BS 7123:1989 Specification for metal arc welding of steel for concrete reinforcement
BS 6164:2001 Code of practice for safety in tunnelling in the construction industry

HD 427 : 200S1 SPECIFIC SAFETY RULES FOR THE INSTALLATION OF EQUIPMENT FOR ELECTRIC ARC WELDING AND ALLIED PROCESSES
BS 499-1:1983 Welding terms and symbols. Glossary for welding, brazing and thermal cutting
BS 5501-1:1977 Electrical apparatus for potentially explosive atmospheres General requirements
BS 638-4:1979 Arc welding power sources, equipment and accessories Specification for welding cables
BS 638-2:1979 Arc welding power sources, equipment and accessories Specification for air cooled power sources for manual metal-arc welding with covered electrodes and for TIG welding
BS 5345-1:1989 Code of practice for selection, installation and maintenance of electrical apparatus for use in potentially explosive atmospheres (other than mining applications or explosive processing and manufacture) General recommendations
BS 638-3:1979 Arc welding power sources, equipment and accessories Specification for air cooled power sources for semi-automatic and automatic metal-arc welding
BS 638-1:1979 Arc welding power sources, equipment and accessories Specification for oil cooled power sources for manual, semi-automatic and automatic metal-arc welding and for TIG welding
BS 638-6:1984 Arc welding power sources, equipment and accessories Specification for safety requirements for construction
HD 407 : 200S1 SAFETY RULES FOR THE USE OF EQUIPMENT FOR ELECTRIC ARC WELDING AND ALLIED PROCESSES

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