【多选题】
根据电力安全事故(以下简称事故)影响电力系统安全稳定运行或者影响电(热力)正常供应的程度，事故分为___。
A. 特别重大事故
B. 重大事故
C. 较大事故
D. 一般事故
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答案
ABCD
解析
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相关试题
【多选题】
为了加强电力安全事故的应急处置工作，规范电力安全事故的调查处理，___电力安全事故损害，制定电力安全事故应急处置和调查处理条例。
A. 伪造
B. 欺瞒
C. 隐匿
D. 毁灭
【单选题】
SS4型电力机车牵引高压试验中，换向手柄置“前”位，调速手轮置于 ___，看： “预备”灯、“零位”灯灭，8台电机电流均升至150A。
A. 1级
B. 2级
C. 3级
D. 4级
【单选题】
关于’TSG3-630／25型受电弓保养维护及存放， ___的叙述是错误的。
A. 拆除受电弓框架前，必须将上框架勾在支架上，方能拆除传动部分风缸
B. 分解受电弓框架前，可以不必拆除升弓弹簧，能直接分解框架
C. 受电弓瓷瓶和拉杆清洁必须用带有酒精或干净汽油的白布擦抹
D. 检查粉末冶金滑板的磨损极限过限后应及时更换，以免损伤滑板和造成弓头 刮伤
【单选题】
司机控制器的手轮与手柄之间设有机械联锁装置，对它们的联锁要求， ___的 叙述不正确
A. 换向手柄在“0” 位时，调速手轮被锁在“0’’位不能动作
B. 换向手柄在“前”或“后”位时，调速手轮可在“牵引，，区域转动
C. 换向手柄在“制”位时，调速手轮可在“制动”区域转动
D. 调速手轮在“牵引”区域时，换向手柄可在“前”或“后”位转动
【单选题】
关于TSGl-600/25型受电弓保养维护及存放要求， ___的叙述是错误的。
A. 应经常检测滑板和接触导线间的压力，修理、调整和更换滑板后应重新测定 接触压力符合要求
B. 受电弓升降特性、时间、滑板横动量、高低偏差等均应符合受电弓技术条件和 试验大纲的要求
C. 各油杯应定期，大约3个月涂满钙钠基润滑油
D. 定期拧下风缸下部的丝堵，排出风缸的积水
【单选题】
关于TSG3-630／25型受电弓保养维护及存放要求， ___的叙述是错误的。
A. 运行中发现受电弓有强大火花和不正常的上举和下降情况时必须进行调整
B. 受电弓不使用而需存放时，应对受电弓进行一次全面检查
C. 长期存放应将受电弓弹簧拧紧
D. 受电弓在需将弓头提升时，必须对受电弓传动风缸通以520kPa的压力或将连 杆拐臂的销钉解除，以免造成支持绝缘子的损伤
【单选题】
SS4型电力机车段修技术规程要求，TKSl4A型司机控制器手轮与主轴的配合间隙应 不大于 ___。
A. 0．1 Into
B. 0．2 mm
C. 0．3 innl
D. 0．4 mm
【单选题】
关于交一直一交型电力机车， ___的叙述是错误的。
A. 由于三相异步电动机结构中使用了换向器，所以该电动机的功率／体积比大
B. 交流电机维修量小
C. 使用的异步电动机具有很稳定的机械特性
D. 简化了主电路，机车主电路中的两位置转换开关可省去
【单选题】
电力机车的电气联锁包括 ___。
A. 串联联锁、并联联锁
B. 串联联锁、并联联锁、自持联锁
C. 串联联锁、并联联锁、自持联锁延时联锁
D. 串联联锁、并联联锁、自持联锁、延时联锁、经济电阻线路
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