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一 通用工具1.低压验电笔低压验电笔也叫测电笔、试电笔.它是一种检验低压电线和电器是否带电的安全工具.它检测电压的范围为60～500V.使用时,应让笔尾的金属件与手相接触.要注意手指不要触及笔尖的金属部分.为了安全起见,电笔的笔尖金属或螺丝刀,应套上塑料管保护.验电时,应使氖泡背光.窗口朝自己方向.测交流电时,氖管两极发光;测直流电时,氖管单极发光.电压高,亮度大.电笔氖管在使用中容易损坏,平时要注意检验.
A common tool 1. Low-voltage electroscope pen Low-voltage electroscope pen is also called the test pencil, test pencil. It is a test of low-voltage wires and appliances are charged safety tools. It detects the voltage range of 60 ~ 500V. Tail metal contact with the hand. Be careful not to touch the metal tip of the pen. To be on the safe side, pen tip metal or screwdriver, should be protected by plastic tube. Inspector, the neon bulb should be backlit. When the AC current is measured, the neon tube emits light at both ends of the tube; when the DC current is measured, the neon tube emits unipolar light, the voltage is high, and the brightness is high, and the electric pen neon tube is easily damaged when in use.