Live Cable Identifier Price

2022/05/26

Author: Noyafa–Noyafa Cable Tester

The price of the live cable identification instrument The price of the live cable identification instrument is composed of three parts: the signal generator, the receiving identification clamp and the indicator meter. When the receiving identification clamp signal detector is used, the signals detected on other cables are much smaller. And the price of the live cable identification instrument The price of the live cable identification instrument is composed of three parts: the signal generator, the receiving identification clamp and the indicator meter. When the receiving identification clamp signal detector is used, the signals detected on other cables are smaller. There are many and the direction is opposite. It is easy to determine the cable under test by indicating the amplitude and direction of the electric meter. Working method: The signal generator of the cable identification instrument is powered by an AC power supply, and it adds a fixed period unipolar DC pulse to the cable that has been powered off and needs to be identified. The output wire of the generator is connected to the cable core wire and the grounding point or ground nail. The armor of the cable wire is disconnected from the ground, and the core wire is connected to the grounding point or ground nail at the far end. The loop can conduct pulse current, which can be identified by The meter on the instrument reads out, the current is determined by the loop resistance, and the loop resistance should be as small as possible.

The wiring diagram of the identification instrument is shown in the figure. After the transmitter and the receiver start to work normally, the voltage induced in the sensor coil is displayed in the meter head of the receiver, and the direction of the movement of the pointer of the meter head can display the current direction, that is Only the cable from which the current flows out has the pointer to the right and has a large swing, and this is the cable you are looking for. All other cables carry only return current, the needle is offset to the left and the swing is very small. The output adjustment knob on the receiver adjusts the signal strength.

1. Instrument power supply The cable identification instrument host is powered by AC 220V. 2. Sensor The sensor is a current transformer, and the internal size of the jaw is 120mm. When current flows through the test cable, a voltage is induced in the sensor. The magnitude of the voltage is determined by the intensity of the current, and its polarity is determined by the direction of the current.

3. Safety test The following safety tests must be carried out to avoid casualties or damage to the cable identifier and other equipment. When using the cable identifier, carry out a live check on the cable under test and make sure that the cable is in a dead state. Before connecting the instrument to the cable under test, it is necessary to check the safety of the nearby unprotected instruments or cables, and use insulating materials to protect these live parts for safety.

Live Cable Identifier Price Cable Identifier Price Shenzhen Noyafa Electronic Technology Co., Ltd.

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