供电专业防寒题(修改版)（Cold problems for power supply (Revised Edition)）.docVIP

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供电专业防寒题(修改版)（Cold problems for power supply (Revised Edition)）.doc

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供电专业防寒题(修改版)（Cold problems for power supply (Revised Edition)）

供电专业防寒题(修改版)（Cold problems for power supply (Revised Edition)） Radio: 1 contact net work near the railway line in the winter, are not allowed to put down the protective cap ears. You must wear C when you work. A insulating appliances, B work clothes, C protective articles, D safety appliances 2 the number of workers engaged in deicing operations shall not be less than (A), one person operation, one person guardianship, one person protection. A three people, B one person, C two, D four 3 the work of deicing on OCS shall be carried out (B) work order and the reclosing of relevant sections shall be removed. A no power off, B indirect live C, away from D power cut 4, contact network workers in the spring thaw, should pay attention to spring melt situation, to prevent the spring melt caused by inverted rod, (A). Collapse, collapse, foundation settlement. A broken line; B; inverted rod; C collapse; D foundation settlement 5 contact net work when bad insulation contact net, in its pillar, supporting structure and metal structure, the connection point in the return line and rail, are likely to occur, therefore, the usual (D) should avoid contact with these components, when the catenary insulator damage, no contact. A low voltage B low current C voltage free. D high voltage 6 contact network worker, in low voltage live operation, allowing load connection (C). A ground wire B, high voltage C, low voltage D lead wire 7 contact electrical equipment, if there is a fire, first (B), to ensure the safety of fire fighting personnel and prevent the spread of fire. A discharge, B cut off power, C shutdown device, D disconnect loop 8 contact the net worker winter high altitude safety work, check whether the ladder and ladder meet the requirements, firm, light and stable. Before climbing, to check the status of the pillars, select the direction and conditions of climbing, climbing hands firmly, pedal steady. With feet and pedal climbing, to prevent the truck tight, fall, climb to try to