BS 6704:1987
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
Code of Practice for selection, installation and maintenance of intrinsically safe electrical equipment in coal mines
Hardcopy , PDF
15-11-1996
English
28-08-1987
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Foreword
Committees responsible
Section one. General
1 Scope
2 Definitions
3 Mining legislation affecting the use of electricity
4 British mining certification authority
5 Certification standards and other relevant
specifications
6 Certification of electrical apparatus and systems
Section two. Selection and installation of electrical
apparatus and systems
7 Selection
8 Installation
Section three. Inspection and test
9 General
10 Inspection
11 Routine inspection
12 Insulation and earth continuity testing
13 Records
Section four. Maintenance and repair
14 General
15 Maintenance work in a hazardous area
16 Maintenance work in a non-hazardous area
17 Cable disconnection
18 Batteries
19 Electrical measuring instrument
20 Repair and overhaul
Section five. Competence of personnel
21 General
22 Education and training of electrical personnel
Appendices
A Mining legislation (referred to in clause 3)
B Characteristics of mining type cables
Tables
1 Cross-sectional area of copper conductors
2 Telephone cable inductance and resistance ratios
(nominal values)
3 Signalling cable inductance and resistance ratios
(nominal values)
4 Electrical characteristics of pliable wire armoured
cables to BS 6708 : 1977 (nominal values)
5 Electrical characteristics of two core SWA cable
generally in accordance with BS 6346 (nominal
values)
Includes inspection, test, maintenance and repair, and competence of personnel in respect of safe practice.
| Committee |
W/-
|
| DevelopmentNote |
BS DRAFT 94/705033 DC
|
| DocumentType |
Standard
|
| Pages |
24
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy |
| EN 50033 : 1991 | ELECTRICAL APPARATUS FOR POTENTIALLY EXPLOSIVE ATMOSPHERES - CAPLIGHTS FOR MINES SUSCEPTIBLE TO FIREDAMP |
| BS 5501-9:1982 | Electrical apparatus for potentially explosive atmospheres Specification for intrinsically safe electrical systems \'i\' |
| BS 5501-4:1977 | Electrical apparatus for potentially explosive atmospheres Powder filling \'q\' |
| BS 5501-7:1977 | Electrical apparatus for potentially explosive atmospheres Intrinsic safety \'i\' |
| BS 5501-6:1977 | Electrical apparatus for potentially explosive atmospheres Increased safety \'e\' |
| 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 5501-2:1977 | Electrical apparatus for potentially explosive atmospheres Oil immersion \'o\' |
| EN 50028:1987 | Electrical apparatus for potentially explosive atmospheres - Encapsulation 'm' |
| BS 5501-3:1977 | Electrical apparatus for potentially explosive atmospheres Pressurized apparatus \'p\' |
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