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BS 3905:1995

Current
Current

The latest, up-to-date edition.

Specification for 3.8/6.6 kV, 300 A bolted flameproof cable couplers and adaptors, for use in coal mines.
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

15-11-1995

Committees responsible
Foreword
Specification
1 Scope
2 References
3 Definitions
4 Information to be documented
5 Design and construction
6 Dimensions
7 Cable glands and cable sealing boxes
8 Type tests
9 Routine tests
10 Marking
Tables
1 Properties of electrical insulating materials
2 Properties of sealing ring
3 Minimum creepage distances and clearances
4 Details of coupler glandsets
5 Tensile load
6 Bending forces
Figures
1 6.6 kV, 300 A cable half coupler
2 Alternative front face for mouldings
3 Contact pin
4 Pilot contact pins
5 Sealing ring
6 Straight adaptor
7 Angle adaptor
8 Angle adaptor with access plate
9 Adaptor pin
10 Insulated end cover
11 Electrical creepage distances and clearances for
    cable coupler
12 Electrical creepage distances and clearances for
    adaptors to enclosures
13 Creepage distances and clearances
14 Coupler glandsets for pliable wire armoured cables
15 Coupler glandsets for single and double wire
    armoured cables
16 Gland for single or double wire armoured cable for
    non-metallic cable sealing box
List of references

Design and construction dimensions, cable glands and testing of semi-screened 3-phase and unscreened 3-phase with centre pilot tube.

This British Standard specifies requirements for 300 A bolted flameproof cable couplers and adaptors of semi-screened three-phase, or unscreened three-phase with centre pilot tube type, with a voltage rating of 3.8/6.6 kV. The couplers are designed to enable two cables to be coupled together or to enable a cable to be coupled to apparatus by use of adaptors, in both cases the electrical connections being made by separate connecting pins. Provision is also made for insulated end covers.

The use of other forms of intermediate box, with coupling arrangements as specified in this standard, are not precluded provided that all other relevant requirements of this standard are met.

The semi-screened cable couplers are primarily intended for use with three- or four-core wire armoured cables where the fourth conductor is earthed. The cable couplers incorporating a centre pilot are primarily intended for use with three-core wire armoured cables having an additional pilot core(s).

Couplers and adaptors conforming to this standard are not intended to be coupled or uncoupled when the circuit is energized. The dimensions necessary to provide for the connection of enclosures of different manufacture and some electrical and mechanical requirements are specified. This standard does not however, purport to specify a fully detailed design.

NOTE. The figures in this standard show only those essential features and dimensions for function and interchangeability. Dimensions are in millimetres.

Committee
W/-
DevelopmentNote
Supersedes 93/76975 DC and BS 3905(1984) (07/2005) Reviewed and confirmed by BSI, January 2011. (12/2010)
DocumentType
Standard
Pages
36
PublisherName
British Standards Institution
Status
Current
Supersedes

BS 5067:1985 Specification for flameproof transformers for use in mines
BS 7019:1989 Specification for fully screened 400 A bolted flameproof cable couplers and adaptors for use on systems up to and including 6.6 kV, primarily for use in mines

BS 3692:1967 Specification for ISO metric precision hexagon bolts, screws and nuts. Metric units
BS 240:1986 Method for Brinell hardness test and for verification of Brinell hardness testing machines
BS 2782-3:Methods 320A to 320F:1976 Methods of testing plastics. Mechanical properties Tensile strength, elongation and elastic modulus
BS 4168-5:1981 Hexagon socket screws and wrench keys: metric series Specification for hexagon socket set screws with cup point
BS 7383:1990 Specification for cold-pour resin-based compound for use as a filling medium in terminating cables in enclosures for voltages not exceeding 11 kV for use in coal mines
BS 2782-2.240A&B(1982) : LATEST METHODS OF TESTING PLASTICS - ELECTRICAL PROPERTIES - DETERMINATION OF LOSS TANGENT AND PERMITTIVITY AT POWER AND AUDIO FREQUENCIES
BS 2782-2.230A(1982) : 1982 PHYSICAL TESTING OF RUBBER - DETERMINATION OF VOLUME RESISTIVITY
BS 4439:1969 Specification for screwed studs for general purposes. Metric series
BS 6346:1989 Specification for PVC-insulated cables for electricity supply
BS 5901:1980 Method of test for determining the comparative and the proof tracking indices of solid insulating materials under moist conditions
BS 3454:1995 Specification for 1.9/3.3 kV, 300 A bolted flameproof cable couplers and adaptors (including 380/660 V and 640/1100 V, 300 A adaptors) for use in coal mines
BS 903-C2:1982 Physical testing of rubber Determination of volume resistivity
BS 903-A26:1969 Physical testing of rubber Determination of hardness
BS 5501-1:1977 Electrical apparatus for potentially explosive atmospheres General requirements
BS 2918:1957 Determination of electric strength of solid insulating materials at power frequencies
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 EN 60529:1992+A2:2013 Degrees of protection provided by enclosures (IP code)
BS 5501-8:1988 Electrical apparatus for potentially explosive atmospheres Encapsulation \'m\'
BS 4683-2:1971 Specification for electrical apparatus for explosive atmospheres The construction and testing of flameproof enclosures of electrical apparatus
BS 1858:1973 Specification for bitumen-based filling compounds for electrical purposes
BS 903-A16:1987 Physical testing of rubber Determination of the effect of liquids
BS 2782-1 Method 141:1986 Methods of testing plastics. Thermal properties Determination of flammability by oxygen index
BS 2782-3.335A(1993) : AMD 8638 METHODS OF TESTING PLASTICS - MECHANICAL PROPERTIES - DETERMINATION OF FLEXURAL PROPERTIES
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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