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1、BRITISH STANDARD BS 6182-3: 1982 Incorporating Amendment Nos. 1, 2 and 3 Intrinsically safe power supplies for use in coal mines Part 3: Specification for rechargeable battery units UDC 622.33.005:621.3.031:621.311.4:621.352 Licensed Copy: sheffieldun sheffieldun, na, Tue Dec 05 07:42:04 GMT+00:00 2
2、006, Uncontrolled Copy, (c) BSI BS 6182-3:1982 This British Standard, having been prepared under the direction of the Mining and Quarrying Requisites Standards Committee, was published under the authority of the Board of BSI and comes into effect on 30 September 1982 BSI 07-1999 The following BSI re
3、ferences relate to the work on this standard: Committee reference MQE/25 Draft for comment 80/72154 DC ISBN 0 580 12416 9 Cooperating organizations The Mining and Quarrying Requisites Standards Committee, under whose direction this British Standard was prepared, consists of representatives from the
4、following: Association of British Mining Equipment Companies* Association of Mining Electrical and Mechanical Engineers British Electrical and Allied Manufacturers Association (BEAMA)* British Quarrying and Slag Federation Council for Electrical Equipment for Flammable Atmospheres (BEAMA)* Engineeri
5、ng Equipment Users Association Health and Safety Executive* Institute of Quarrying Institution of Mechanical Engineers Institution of Mining and Metallurgy Institution of Mining Engineers Mechanical Handling Engineers Association National Coal Board* National Union of Mineworkers* The organizations
6、marked with an asterisk in the above list, together with the following, were directly represented on the Technical Committee entrusted with the preparation of this British Standard: National Association of Colliery Overmen, Deputies and Shotfirers (NACODS) Coopted member Amendments issued since publ
7、ication Amd. No.Date of issueComments 4726November 1984 6236November 1990 6351June 1991Indicated by a sideline in the margin Licensed Copy: sheffieldun sheffieldun, na, Tue Dec 05 07:42:04 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6182-3:1982 BSI 07-1999i Contents Page Cooperating organizations
8、Inside front cover Foreword ii 1Scope 1 2Definition 1 3Design and construction 1 4Marking 2 5Routine tests 2 Appendix A Guidance on interconnection with other equipment 4 Figure 1 Functional diagram of rechargeable battery unit 3 Table 1 Battery unit characteristics1 Table 2 Component specifications
9、 2 Table 3 Maximum inductance of cables and load for connection to the output of the power supply 4 Publications referred to Inside back cover Licensed Copy: sheffieldun sheffieldun, na, Tue Dec 05 07:42:04 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6182-3:1982 ii BSI 07-1999 Foreword This Britis
10、h Standard has been prepared under the direction of the Mining and Quarrying Requisites Standards Committee and specifies requirements for mains fed power supplies which provide intrinsically safe outputs suitable for use in coal mines. A range of d.c. and a.c. power supplies and rechargeable batter
11、y units is specified to give a power output ensuring both a minimum acceptable performance with connected apparatus and a maximum power output dictated by the requirements of intrinsic safety. This standard is published in three Parts. Part 1: specifies requirements for power supplies providing d.c.
12、 outputs of the following voltages: a) an 18 V power supply that may be used, for example, to float charge an intrinsically safe battery with a nominal discharge end-point voltage of 12 V; b) a 12 V power supply for use where battery standby is not required, or to float charge an intrinsically safe
13、battery with a nominal discharge end-point voltage of 7.5 V; c) a 7.5 V power supply that may be used, for example, with equipment using logic circuits requiring 5 V for operation. Part 2: specifies requirements for power supplies providing a.c. outputs. Two output voltages are specified for the fol
14、lowing purposes: a) a 12 V r.m.s. output to supply intrinsically safe apparatus where maximum power availability is the predominant requirement. b) a 15 V r.m.s. output to supply intrinsically safe apparatus where a higher operating voltage is more important than available power. Part 3: specifies r
15、equirements for a range of rechargeable battery units that are to be charged from the power supplies specified in Parts 1 and 2. The address of the recognized certification authority in the United Kingdom for intrinsic safety aspects is given on the inside back cover of this standard. A British Stan
16、dard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover,
17、 an inside front cover, pages i and ii, pages 1 to 4, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: sheffieldun sheffieldun,
18、na, Tue Dec 05 07:42:04 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6182-3:1982 BSI 07-19991 1 Scope This Part of this standard specifies requirements for the construction and testing of a range of nickel cadmium rechargeable battery units intended to be certified intrinsically safe for use in coa
19、l mines and which provide an intrinsically safe output. These battery units are rechargeable from the power supplies specified in Parts 1 and 2 of this standard. NOTEThe titles of the publications referred to in this standard are listed on the inside back cover. 2 Definition For the purposes of this
20、 standard the following definition applies. rechargeable battery unit an assembly of cells and related components mounted within an enclosure 3 Design and construction 3.1 General. The rechargeable battery unit shall comply with the requirements of BS 5501-7 for group I category “ia” apparatus. Each
21、 rechargeable battery unit shall consist of sealed nickel-cadmium cells, together with a charging and regulating circuit and an enclosure, and be suitable for use in any attitude. NOTERequirements for enclosures are not given in this standard. 3.2 Type of rechargeable battery unit. Each type of rech
22、argeable battery unit shall comply with the appropriate values given in Table 1. 3.3 Charging and regulating circuit 3.3.1 Each rechargeable battery unit shall incorporate a charging and regulating circuit such that: a) the configuration of components is as shown in Figure 1; b) there shall be no in
23、terruption of the battery supply to the load when the charging supply is disconnected; c) the battery is protected from damage due to overcharging; d) an externally visible green indicator light is continuously illuminated when the externally connected power supply is energized; e) an externally ava
24、ilable connection allows battery charging not limited by the charging and regulating circuit; f) the facilities provided in items d) and e) shall be clearly identified together with the input and output connections; g) the normal shelf life of the battery cells is not degraded; h) the intrinsic safe
25、ty at the output terminals of the battery unit is not adversely affected by the charging source. 3.3.2 Each rechargeable battery unit designed to be charged from a 12 DC or 18 DC power supply shall comply with the following requirements. a) The battery charging and regulating circuit shall be such t
26、hat, according to the load requirement, the battery either supplies current additional to that available from the incoming power supply or is charged from the residue of the incoming power supply. b) Irrespective of the state of charge of the battery, at least 50 % of the current derived from the in
27、coming power supply shall be available to the external load. c) The current required by the regulating circuit shall not exceed 10 mA. Table 1 Battery unit characteristics 123456 Battery unit typeNominal output voltage Minimum nominal capacity of batterya Number of cellsMaximum output voltage (see 3
28、.4.3) Type of power supply unit source suitable for recharging 8/NC/10 V 8 Ah 106 V 8.412 DC 14/NC/71471115.418 DC 14/NC/21421115.418 DC 14/NC/2/AC1421115.415 AC a It is important to understand that the minimum nominal capacity of the batteries may not be realised in practice when charged from the d
29、esignated power supplies. Licensed Copy: sheffieldun sheffieldun, na, Tue Dec 05 07:42:04 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6182-3:1982 2 BSI 07-1999 3.3.3 The assembly of cells and the associated charging and regulating circuit shall be infallibly separated from earthed parts and any ou
30、ter metallic enclosure by the appropriate creepage and clearance distances specified in BS 5501-7. 3.3.4 In addition to the requirements of BS 5501-7, the insulation resistance between all parts of the circuit and any outer metal enclosure or earth as appropriate, shall not be less than 1 M7 when te
31、sted at 500 V d.c. 3.4 Output circuit 3.4.1 The value of the current limiting resistance shall be as given in Table 2. NOTEThe resistance may be made up from more than one resistor provided that the combination complies with value given in Table 2. The resistance shall be capable of dissipating the
32、power given in Table 2 without exceeding the manufacturers rated hot spot temperature when the battery is mounted in its enclosure. 3.4.2 The fuse shall have the value given in Table 2 and shall be connected in series with the resistance so as to limit power dissipation. 3.4.3 When the unit is on ch
33、arge the voltage at the output terminals, with any two faults applied, as defined in BS 5501-7, shall not exceed the value as given in column 5 of Table 1. 3.5 Working temperature. Each rechargeable battery unit shall be designed for continuous operation in an ambient temperature range of 5 C to + 4
34、0 C. 3.6 Cable connections. Cable connection arrangements shall be either: a) a terminal box or boxes with provision for armoured cable glands fitted for incoming and outgoing cables, with incoming and outgoing circuits adequately segregated; or b) plug and socket connectors fitted subject to a suit
35、able type being agreed between purchaser and manufacturer. Table 2 Component specifications NOTE 1This value is calculated under the terms of paragraph 2 of clause 9 of BS 5501-7:1977. NOTE 2The values shown include a derating factor of two-thirds as required by BS 5501-7. 4 Marking In addition to t
36、he marking prescribed in BS 5501-7, each rechargeable battery unit shall be marked with: a) rechargeable battery type (see Table 1) and the number of this standard, i.e. BS 6182-31); b) manufacturers serial number. 5 Routine tests The rechargeable battery unit supplier shall subject each battery uni
37、t to charge/discharge cycles in an ambient temperature of 20 C until the rated capacity in Table 1 is confirmed. Battery nominal voltage Current limiting resistanceRated current of fuse ResistancePower ratinga V 8 14 7 1.8 1 % 4.7 5 % W 64 22 A No fuse 1.0 a The values shown include a derating facto
38、r of two-thirds as required by BS 5501-7. 1) Marking BS 6182-3 on or in relation to a product is a claim by the manufacturer that the product has been manufactured in accordance with the requirements of the standard. The accuracy of such a claim is therefore solely the manufacturers responsibility.
39、Enquiries as to the availability of third party certification to support such claims should be addressed to the Director, Quality Assurance Division, BSI, Maylands Avenue, Hemel Hempstead HP2 4SQ in the case of certification marks administered by BSI or to the appropriate authority for other certifi
40、cation marks. Licensed Copy: sheffieldun sheffieldun, na, Tue Dec 05 07:42:04 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6182-3:1982 BSI 07-19993 Figure 1 Functional diagram of rechargeable battery unit Licensed Copy: sheffieldun sheffieldun, na, Tue Dec 05 07:42:04 GMT+00:00 2006, Uncontrolled C
41、opy, (c) BSI BS 6182-3:1982 4 BSI 07-1999 Appendix A Guidance on interconnection with other equipment The design of the battery unit is such that when it is connected to a load there are limiting electrical parameters that dictate the arrangement permitted by the certifying authority. Table 3 provid
42、es guidance on this subject for the user. Table 3 Maximum inductance of cables and load for connection to the output of the power supply a) Values extrapolated from ignition curves in BS 5501-7 b) Values calculated with reference to ignition curves in IEC 79-11 Power supplyMaximum inductance per ohm
43、 Maximum inductance Power supplyMaximum inductance per ohm Maximum inductance 8/NC/10 14/NC/7 14/NC/2 14/NC/2/AC 4H/7 44 31 mH 0.02 0.037 8/NC/10 14/NC/7 14/NC/2 14/NC/2/AC 4H/7 78 44 mH 0.041 0.056 Licensed Copy: sheffieldun sheffieldun, na, Tue Dec 05 07:42:04 GMT+00:00 2006, Uncontrolled Copy, (c
44、) BSI BS 6182-3:1982 BSI 07-1999 Publications referred to BS 5501, Electrical apparatus for potentially explosive atmospheres. BS 5501-7, Intrinsic safety “i”. BS 6182, Intrinsically safe power supplies for use in coal mines. BS 6182-1, Specification for d.c. power supplies 2). BS 6182-2, Specificat
45、ion for a.c. power supplies. IEC 79-11, Electrical apparatus for explosive gas atmospheres Part 11 Construction and test of intrinsically safe and associated apparatus. 2) Referred to in the foreword only. Licensed Copy: sheffieldun sheffieldun, na, Tue Dec 05 07:42:04 GMT+00:00 2006, Uncontrolled C
46、opy, (c) BSI BS 6182-3: 1982 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter
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