煤矿机电安全质量标准化标准及考核评级办法考试题（Coal mine mechanical and electrical safety quality standardization standards and assessment grading method examination questions）.docVIP

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煤矿机电安全质量标准化标准及考核评级办法考试题（Coal mine mechanical and electrical safety quality standardization standards and assessment grading method examination questions）.doc

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煤矿机电安全质量标准化标准及考核评级办法考试题（Coal mine mechanical and electrical safety quality standardization standards and assessment grading method examination questions）

煤矿机电安全质量标准化标准及考核评级办法考试题（Coal mine mechanical and electrical safety quality standardization standards and assessment grading method examination questions） Mechanical and electrical safety quality standardization standards and assessment methods review questions Fill in the blanks 1, mechanical and electrical equipment must have (product qualification certificate), coal mine products (safety signs), explosion-proof equipment must also have (explosion-proof certificate). 2, this is the comprehensive rate of mechanical and electrical equipment (93%); the explosion-proof electrical equipment and small electrical explosion rate (100%); the qualified rate of small appliances (95%); cable hanging pass rate (95%); according to the provisions of the use of double light source lamp, intact rate (95%), with no underground miners lamp (red, light); the equipment to repair rate (5%); the electromechanical accident rate (1%). 3, mechanical and electrical safety protection device (Qi Quan), reliable, pass rate of 100%. 4 、 low voltage motor is equipped with (short circuit), (overload), (single phase broken line), (leakage lock) protection and remote control device. 5, 40kW and above motor should use (vacuum electromagnetic starter) control, and use motor (comprehensive protection). 6, the driving face adopts double fans and double power supply, and realizes automatic switching of (running fan) and (standby fan). 7. The electric equipment in the local ventilator and driving face must be equipped with (wind locking) device, and the coal roadway driving face must be equipped with (wind locking) device (gas locking device). 8, four small wires and power cables use (flame retardant) cables. 9. A selective (single-phase earthing) protection device must be installed on the HV feeder line of the central substation. 10, for the mobile substation of high voltage feeder line, must be equipped with selective action in tripping (single-phase grounding) protection device. 11, low-voltage power s