BS 5125:1990
Current
The latest, up-to-date edition.
Specification for 50 A 650 V flameproof, restrained and bolted plugs and sockets for use in coal mines
Hardcopy , PDF
English
31-07-1990
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Committees responsible
Foreword
Specification
1 Scope
2 Definitions
3 Metallic components
4 Insulation
5 Contacts
6 Terminals
7 Plug
8 Socket
9 Retaining device
10 Closer cap for bolted socket
11 Dimensions
12 Flameproof enclosure
13 Type tests
14 Routine tests
15 Marking
Appendix
A Information to be provided with enquiry and order
Tables
1 Properties of electrical insulating materials
2 Contact tube conditioning data
Figures
1 Bolted plug
2 Bolted socket
3 Restrained plug
4 Restrained socket
5 Bolted plug and socket assembly
6 Restrained plug and socket assembly
7 Closer cap for bolted socket
8 Associated mounting flange
Specifies dimensional, construction and test requirements for plugs and sockets for flexible cables having three power and one pilot contacts and a scraping earth contact.
| Committee |
W/-
|
| DevelopmentNote |
Supersedes BS 5125(1974) & 89/71282 DC. (07/2005) Reviewed and confirmed by BSI, January 2011. (12/2010)
|
| DocumentType |
Standard
|
| Pages |
22
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
This British Standard specifies the dimensional and test requirements for 50 A flameproof restrained and bolted plugs and sockets suitable for voltages not exceeding 650 V, primarily intended for use with mining apparatus which is connected to its power supply by means of a flexible cable. These plugs and sockets incorporate three power contacts, one pilot contact for electrical interlocking, and a scraping earthing contact. Provision is also made for cable couplers, to enable lengths of flexible cable to be coupled together.
NOTE 1 The figures in this standard show only those essential features and dimensions for function and interchangeability.
NOTE 2 Appendix A lists the information to be supplied by the purchaser.
NOTE 3 The titles of publications referred to in this standard are listed on the inside back cover.
| BS 7202:1989 | Specification for non-incendive low voltage control/interlock and low voltage earth fault monitoring circuits for use in mines |
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| BS 2782-3:Methods 320A to 320F:1976 | Methods of testing plastics. Mechanical properties Tensile strength, elongation and elastic modulus |
| BS 4168:1967 | Specification for hexagon socket screws and wrench keys. Metric series |
| BS 2782-3 Method 359:1984 | Methods of testing plastics. Mechanical properties Determination of Charpy impact strength of rigid materials (Charpy impact flexural test) |
| BS 2782-2.230A(1982) : 1982 | PHYSICAL TESTING OF RUBBER - DETERMINATION OF VOLUME RESISTIVITY |
| BS 5901:1980 | Method of test for determining the comparative and the proof tracking indices of solid insulating materials under moist conditions |
| BS 903-C2:1982 | Physical testing of rubber Determination of volume resistivity |
| BS 5501-1:1977 | Electrical apparatus for potentially explosive atmospheres General requirements |
| BS 5501-5:1977 | Electrical apparatus for potentially explosive atmospheres Flameproof enclosure \'d\' |
| BS 2782-2.220&221(1983) : LATEST | METHODS OF TESTING PLASTICS - ELECTRICAL PROPERTIES - DETERMINATION OF ELECTRICAL STRENGTH: RAPIDLY APPLIED VOLTAGE METHOD AND STEP-BY-STEP METHOD |
| BS 4683-1:1971 | Specification for electrical apparatus for explosive atmospheres Classification of maximum surface temperatures |
| BS 4464:1969 | Specification for spring washers for general engineering and automobile purposes. Metric series |
| BS 2782-3 Method 335A:1978 | Methods of testing plastics. Mechanical properties Determination of flexural properties of rigid plastics |
| BS 4683-2:1971 | Specification for electrical apparatus for explosive atmospheres The construction and testing of flameproof enclosures of electrical apparatus |
| BS 2782-1 Method 141:1986 | Methods of testing plastics. Thermal properties Determination of flammability by oxygen index |
| BS 2782-4.430A.D(1983) : 1983 | METHODS OF TESTING PLASTICS - CHEMICAL PROPERTIES - DETERMINATION OF WATER AND BOILING WATER ABSORPTION AT 23 DEGREES C. DETERMINATION OF WATER AND BOILING WATER WITH ALLOWANCE OF WATER-SOLUBLE MATTER |
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