1 Scope
This British Standard specifies requirements and dimensions for flexible cables used
in mining and quarrying.
Specific types of cable covered in this standard are as follows:
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a) non-armoured cables having individually metallic screened cores and a rated voltage of 640/1100 V, for use:
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1) with coalface cutters and other similar machines: types 7, 7M, 7S, 11, 14 and 16;
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2) in overhead catenary systems and similar applications: types FS4 (flat form cable);
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b) cables with galvanized steel pliable wire armouring, with:
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1) unscreened cores and a rated voltage 640/1100 V: types 20 and 21; or
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2) individually metallic screened or unscreened cores and a rated voltage 640/1100 V used primarily for remote control circuits and coalface lighting: types 62, 63, 64, 70 and 71; or
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3) individually metallic screened cores and a rated voltage 640/1100 V: types 201 and 211; or
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4) a rated voltage 1900/3300 V used as trailing cables in quarries or for mine roadway cable extension purpose: types 321 and 331;
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c) auxiliary cables with galvanized steel pliable wire armouring having up to 24 individually metallic screened cores and a rated voltage 320/550 V, primarily for use on large mining machines where interconnection between machine sections or a machine section and auxiliary equipment is required: types 506, 512, 518 and 524;
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d) cables with galvanized steel pliable wire armouring having individually metallic screened or unscreened cores and a rated voltage 3800/6600 V, used as trailing cables in quarries and rated for roadway extension purposes: types 621, 630 and 631;
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e) non-armoured cable having individually metallic screened cores and a rated voltage 600/1000 V, primarily for use with hand-held drilling machines in mines: type 44;
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f) non-armoured cable having individually non-metallic screened cores and a rated voltage 600/1000 V, primarily for use with hand-held drilling machines in mines: type 43;
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g) non-armoured cable having individually metallic screened cores and a rated voltage 3800/6600 V, primarily for use as trailing cables for large machines at quarries: type 730;
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h) non-armoured cable having individually metallic screened cores and a rated voltage 6350/11000 V, primarily for use as trailing cables for large machines at quarries: type 830;
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i) non-armoured cables having individually metallic screened cores and rated voltage 1900/3300 V, for use with coalface cutters and other similar machines: types 307, 307M and 307S.
NOTE 1 Information on approved codes of practice and conductivities related to the cables in this standard is given in annex A.
NOTE 2 Recommended current ratings are given in annex B.
NOTE 3 Short circuit current carrying capability of flexible cable screens is given in annex C.