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BS 7924-1999

对矿中沼气敏感的经检定的电气机械检修和翻修的实施规程

Leitfaden zur Reparatur und Ueberholung von zertifizierten elektrischen Geraeten zum Gebrauch in Minen gefaehrdet durch brennbare Staeube Code of Practice for the Repair and Overhaul of Certified Electrical Apparatus Intended for Use in Mines Susceptible to Firedamp Guide de bonne pratique pour la reparation et la revision du materiel certifie electrique pour l'usage intentionne dans les mines susceptiblement grisouteuses

适用范围:This British Standard gives recommendations for the repair, overhaul, reclamation and modification of certified electrical apparatus intended for use in mines susceptible to firedamp (defined as "Group I" apparatus in the explosion protection concept standard BS EN 50014:1998). Maintenance is not covered, other than where this cannot be dissociated from repair and overhaul. It does not give advice on the use of electrical apparatus or the prevention of any hazards other than ignition of an explosive atmosphere. Similarly, it does not give advice on cable entry systems which may require renewal when the apparatus is re-installed. NOTE 1 Recommendations regarding routine maintenance, and the selection and installation of intrinsically safe electrical apparatus for use in potentially explosive atmospheres in mines, are given in BS 6704. NOTE 2 The contract between the user and the repairer will need to address other safety-related matters beyond the scope of this document, e.g. prevention of electric shock, electrical protection (overload, short circuit, earth leakage) and electrical/mechanical interlocking. Clauses 4 to 9 give general recommendations applicable to persons involved in the repair and/or overhaul of electrical apparatus intended for use in potentially explosive atmospheres found in coal mines. They also identify certain specific responsibilities under the Health and Safety at Work etc. Act 1974 [6] as applicable to those who are likely to be concerned with the repair of certified apparatus. Clauses 10 to 15 cover those aspects of repair and overhaul which are common to all explosion protected apparatus. Clauses 16 to 18 give recommendations applicable to specific types of explosion protected apparatus. This standard excludes apparatus having the following forms of protection, which is generally considered irreparable: oil immersion "o"; pressurized "p"; powder filling "q"; and encapsulation "m". NOTE 3 Apparatus which contains oil is installed in British mines, but such equipment should be repaired in accordance with this standard and that, to which it was certified.

实施日期: 1999-11-15

中标分类号: K25,K35 - 电工

ICS分类号: 29.260.20 - 电气工程 - 易爆环境用电气设备

标准组织: BS - 英国标准学会标准

全文来源: WF

中文关键词: 法规 电气安全 元部件 表面处理 e型防护电气设备 维修 电气设备 识别方法 焊接 规则 电气元件 防护电气设备 可燃性环境 验收(鉴定) 金属喷镀 作标记 设备安全 性能试验 职业安全 电镀 爆炸性环境 合格证明书 质量保证 沼气 i型防护电气设备 清洁处理 外壳 d型防护电气设备 采掘设备 变更 回收 翻新 检修 绕组

语种: 汉语

页数: 22

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