BS 638-8:1984
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Arc welding power sources, equipment and accessories Specification for electrode holders and hand held torches and guns for MIG, MAG and TIG welding
Hardcopy , PDF
15-03-1996
English
31-12-1984
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Foreword
Committees responsible
Specification
Section one. General
1. Scope
1.1 Electrode holders
1.2 Torches and guns
1.3 Operating conditions
2. Definitions
Section two. Electrode holders
3. Classification according to the degree of
protection
4. Designation
5. Rated current
6. Construction
7. Tests
7.1 General
7.2 Construction tests
7.3 Accessibility of live parts
7.4 Cable anchorage tests
7.5 Temperature rise tests
7.6 Mechanical strength tests
7.7 Flammability and resistance to heat test
7.8 Insulation resistance test
7.9 Dielectric strength test
8. Marking
Section three. Torches and guns
9. Classification
9.1 General
9.2 Rated voltage
9.3 Striking and stabilization voltages
10. Designation
11. Construction
11.1 Protection against direct contact
11.2 Material for the cable-hose assembly
12. tests
12.1 General
12.2 Temperature rise tests
12.3 Dielectric strength tests
12.4 Flammability and resistance to heat test
12.5 Mechanical strength test
12.6 Insulation resistance test
13. Marking
Appendices
A. Additional terminology
B. Test conditions for temperature rise tests for
specific materials and welding processes
C. Notes on the dielectric testing of striking and
stabilization voltage power sources
D. Inspection and maintenance
Tables
1. Rated current and cross-sectional area of cable
conductors
2. Rated voltage classification of torches or guns
3. Striking and stabilization voltages of torches
or guns
4. Class-related rated voltage
5. Type-related striking and stabilization voltage
6. Test conditions for MAG welding of steels
7. Test conditions for MIG welding of light alloys
8. Test conditions for flux-cored wire and CO2
welding
9. Test conditions for TIG welding
10. Characteristics of capacitor discharge sources
Figures
1. Standard test finger
2. Arrangement of test apparatus for temperature
rise tests
3. Relationship between electrode diameter and
current
4. Test apparatus for lateral impact test
5. Test apparatus for flammability and resistance
to heat test
6. Position for testing of torches/guns for the MAG
welding of steels, the MIG welding of light
alloys and flux-cored wire welding
7. Position for testing of torches/guns for TIG
welding
8. Test apparatus for mechanical strength test
Specifies requirements for general purpose electrode holders for manual arc welding with covered electrodes. Does not apply to electrode holders for special applications e.g. underwater welding. Also specifies requirements for handheld guns and torches for MIG, MAG and TIG welding.
| Committee |
WEE/6
|
| DevelopmentNote |
Partially replaces BS 638: 1966
|
| DocumentType |
Standard
|
| Pages |
26
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| Standards | Relationship |
| ISO 700:1982 | Similar to |
| BS 638-6:1984 | Arc welding power sources, equipment and accessories Specification for safety requirements for construction |
| 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 499-1:1983 | Welding terms and symbols. Glossary for welding, brazing and thermal cutting |
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