logo
答题卡
共115道题
41424344454647484950
学习模式考试模式
翻译
1.For 12 ft of NM cable, how close must supports be to boxes? 1.对于一段长12英尺的NM电缆,其支撑点距离接线盒必须在多近的范围内?
2.Two or more grounding electrodes that are bonded together are considered: 2.两个或多个相互连接(搭接)的接地电极,应被视为:
3.Within what distance from attic access must Romex be protected? 3.Romex电缆在距离阁楼检修口多远的范围内必须采取保护措施?
4.EMT must be supported within what distance of a box? 4.EMT导管距离接线盒多远的范围内必须设置支撑点?
5.Which installation detail violates code for ground rods? 5.下列哪项接地棒的安装细节违反了规范要求?
6.What is another name for a concrete-encased electrode? 6.混凝土包封电极的另一个名称是什么?
7.Ground rods should be spaced: 7.接地棒之间的间距应为:
8.If a grounding electrode exceeds ___ resistance, add another electrode: 8.如果接地电极的电阻值超过 ___ 欧姆,则必须增设另一个电极:
9.At what voltage level is guarding of live electrical parts required? 9.当电压达到何种水平时,必须对带电电气部件采取防护措施?
10.Where is the service entrance cable bonded? 10.进户电缆(Service entrance cable)应在何处进行搭接?
AI解题
吉象智能为您解答

点击AI解题,查看正确答案!