《煤矿安全规程》电气部分修订意见

提出严禁矿用一般型照明灯具、通信、自动化装置和仪器仪表等小功率非防爆设备用于煤矿井下;照明灯具应采用LED等冷光源,优选本质安全型或本质安全型与浇封型或隔爆型等其他防爆型式的复合型;用于煤矿井下的监控、通信、监视、控制设备和仪器仪表应优选本质安全型,设备之间传输的信号必须是本质安全型信号;大功率电气设备应优选隔爆型电气设备,隔爆型电气设备应将接线腔与主腔分腔布置。提出矿用通信与信号电缆和光缆可以盘圈。提出与隔爆型电气设备连接的矿用电缆必须耐爆;严禁矿用通信与信号电缆和光缆直接与单一隔爆型电气设备连接;与隔爆兼本质安全型电气设备连接的矿用通信与信号电缆和光缆必须耐爆。提出煤矿井下严禁使用铝芯电缆。提出用于局部通风机的欠压保护和失压保护应有延时措施;除掘进、开拓和临时施工场所外,尽量减少局部通风机的使用;严禁在形成全风压通风的回采工作面使用局部通风机稀释上隅角瓦斯等。提出矿灯应采用LED等冷光源,应采用本质安全型或本质安全型与浇封型等其他防爆类型的复合型;光源及灯绳(电池与头灯分离时)中传输的电能必须是本质安全型;严禁白炽灯等特殊型矿灯用于煤矿井下。

Proposal of revision for electrical section of Coal Mine Safety Regulation

The paper proposed that low-power and non-explosion-proof equipments such as general lighting lamps,equipments and instruments of communication and automation are prohibited to be used in coal mine underground;lighting lamps should adopt LED cold light source and be preferred intrinsic safety type or compound type of other explosion-proof types such as intrinsic safety type and encapsulated type or flameproof type;equipments and instruments of monitoring,communication,surveillance and control used in coal mine underground should be preferred intrinsic safety type,signals transferred among the equipments must be intrinsic safety signals;high-power electrical equipments should be preferred flameproof electrical equipments and wiring chamber and primary chamber of flameproof electricalequipments should be setup independently.It proposed that mine-used communication and signal cable and optical fiber can be coiled down.It proposed that mine-used cable connected with flameproof electrical equipments should be resistant to blast;the mined-used communication and signal cable and optical fiber are prohibited to directly connect with sole flameproof electrical equipments;the mine-used communication and signal cable and optical fiber connected to flameproof and intrinsic safety electrical equipments must be resistant to blast.It proposed that aluminum core cable is prohibited in coal mine underground.It proposed that under-voltage protection and loss-voltage protection for local ventilator should has delay measures;besides sites such as tunneling,exploit and temporary construction,use of local ventilator should be reduced as far as possible;it is prohibited to use local ventilator to dilute gas of upper corner in working face with whole wind pressure ventilation.It proposed that miner lamp should adopt LED cold light source and intrinsic safety type or compound type of other explosion-proof types such as intrinsic safety type and encapsulated type;electricity power transferred among light source and lamp cord(separation of battery and headlight)must be intrinsic safety type;incandescent lamp and other special miner lamps are prohibited to be used in coal mine underground.