BS 6709:1986
Current
The latest, up-to-date edition.
Specification for interconnection of electrical apparatus, constructed to two or more British Standards, for use in mines susceptible to firedamp
Hardcopy , PDF
English
31-07-1986
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Foreword
Committees responsible
Specification
Section one. General
1.0 Introduction
1.1 Scope
Section two. Flameproof interconnected apparatus
2.1 General
2.2 Design and construction
2.3 Verification and tests
2.4 Documentation
2.5 Marking
Section three. Interconnected apparatus with mixed
types of protection excluding intrinsic
safety
3.1 General
3.2 Design and construction
3.3 Verification and tests
3.4 Documentation
3.5 Marking
Section four. Apparatus comprising intrinsically safe
circuits interconnected within
protective enclosures
4.1 General
4.2 Design and construction
4.3 Verification and tests
4.4 Documentation
4.5 Marking
Section five. Interconnected intrinsically safe
systems
5.1 General
5.2 Design and construction
5.3 Verification and tests
5.4 Documentation
5.5 Marking
Appendices
A The registered mark for flameproof apparatus
B Methods of legible and durable marking
C Example of interconnection of type d and type e
apparatus
Figures
1 Registered mark for flameproof apparatus
2 Interconnection of type d and type e apparatus
Requirements for the construction, including marking, and testing of interconnected electrical apparatus, including systems and components.
| Committee |
W/-
|
| DevelopmentNote |
Supersedes 85/72817 DC Reviewed and confirmed by BSI, October 2005. (09/2005)
|
| DocumentType |
Standard
|
| Pages |
16
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
This British Standard specifies requirements for the construction and testing of interconnected electrical apparatus, including systems and components1), for use in mines susceptible to firedamp.
NOTE 1 The means of interconnection covered by this standard may be electrical, mechanical or involve the housing of one constituent within another.
This standard applies in circumstances where new apparatus, that has been designed and constructed generally in accordance with BS 5501, cannot fully comply with BS 5501 because of the provision made for connection by electrical and/or mechanical means to existing apparatus previously certified as complying with BS 2293), BS 1259 or BS 4683 to comprise a single unit or system.
NOTE 2 For the purpose of this standard, apparatus that would otherwise be required to comply specifically with BS 5501, BS 229, etc., is described as, for example, “BS 5501 type??, “BS 4683-2 type??, etc. However, it is important to appreciate that the use of such descriptions is not intended to imply that the apparatus actually complies in all respects with the standard referred to although it may have been designed, constructed and certified in accordance with the standard referred to prior to being functionally connected.
References to apparatus previously certified to BS 1259 and any requirements specified in this standard for such apparatus are not intended to apply to circuits designed in accordance with BS 3101, or to earth fault monitoring circuits associated with motor control gear, unless otherwise stated.
NOTE 3 The titles of the publications referred to in this standard are listed on the inside back cover.
| 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 5126-1:1993 | Mining type flameproof supply and control units for use on systems up to 1100 V Specification for direct-on-line motor starters |
| BS 6704:1996 | Code of practice for selection, installation and maintenance of intrinsically safe electrical equipment in coal mines |
| BS 5126-4:1993 | Mining type flameproof supply and control units for use on systems up to 1100 V Specification for air-cooled transformers to power drilling machines |
| BS 5126-2:1993 | Mining type flameproof supply and control units for use on systems up to 1100 V Specification for circuit breaker units |
| BS 5126-3:1993 | Mining type flameproof supply and control units for use on systems up to 1100 V Specification for air-cooled lighting transformer units |
| BS 6182-1:1982 | Intrinsically safe power supplies for use in coal mines Specification for d.c. power supplies |
| BS 6182-2:1982 | Intrinsically safe power supplies for use in coal mines Specification for a.c. power supplies |
| 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\' |
| BS 6182-3:1982 | Intrinsically safe power supplies for use in coal mines Specification for rechargeable battery units |
| BS 4683-2:1971 | Specification for electrical apparatus for explosive atmospheres The construction and testing of flameproof enclosures of electrical apparatus |
| BS 5754:1987 | Specification for electrical analogue and state signals for use in coal mines |
| BS 5501-3:1977 | Electrical apparatus for potentially explosive atmospheres Pressurized apparatus \'p\' |
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