Insulating test electric pole
A technology of electric inspection pole and electric inspection device, which is applied in the direction of measuring electric variables, measuring current/voltage, measuring device, etc. Simple structure and fast electrical testing
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[0020] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0021] An insulating pole such as figure 1 As shown, it includes: an electric test rod 1 and an electric test device installed on the electric test rod 1, the electric test rod 1 is composed of a multi-section insulating telescopic rod, and the electric test rod 1 is a hollow rod; the electric test device includes There are electric inspection circle 2, charged indicator light 3, electric alarm 4 and electric inspection circuit board; 1 lower end.
[0022] Such as figure 2 As shown, the circuit structure of the electric test circuit board is as follows: a fixed end of the potentiometer W1 is sequentially connected to the movable end of the potentiometer W1, one end of the resistor R1, one end of the resistor R2, pin 7 of the NE555 chip IC1, and the NE555 chip Pin 8 of IC1, one end of resistor R3 and one end of resistor R4 are connected to ...
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