BS 6704:1987

Superseded

View Superseded by

Code of Practice for selection, installation and maintenance of intrinsically safe electrical equipment in coal mines

Available format(s)

Hardcopy , PDF

Superseded date

15-11-1996

Language(s)

English

Published date

28-08-1987

Publisher

British Standards Institution

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Status	Superseded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	BS 6704:1996

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\'