NOYAFA Electronic specializing in testing instruments and cable testers for 16 years
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NOYAFA Electronic specializing in testing instruments and cable testers for 16 years
Author: Noyafa–CCTV Monitor Tester
Cable identification instrument quotation Analysis of cable identification instrument detection methods Cable identification instrument quotation Due to the failure of some cable facilities, it brings a lot of inconvenience to the progress of the work, and the detection methods of some old models of cable identification instruments are too complicated and are not conducive to field work. Expand, let me introduce the detection method of the cable identification instrument of our company's improved products. The wiring method is divided into two types: direct connection method and coupling method. The direct connection method is only suitable for the identification of uncharged wires. can be accurately identified. Cable identification instrument quotation 1) Coupling method: connect both ends of the wire to be identified with the ground (through the core wire, shielding or armor) to form a closed loop. When the direction of the output coupling clamp is the same as the direction of the receiving coupling clamp, the wire whose direction of the meter pointer is positively biased is the wire to be identified.
Identification method: Under the condition that the output coupling clamp and the receiving coupling clamp are in the same direction, first determine the phase, take the initial swing of the meter pointer as the criterion, and let the current flow in the direction indicated by the receiving clamp according to the direction shown in the figure. If it is the wire to be identified, the initial swing direction of the meter pointer should be to the right. In the phase judgment process, if there are multiple wires in the same phase, you can compare the amplitude, adjust the sensitivity knob to the appropriate position, and compare the amplitude. The wire with the largest amplitude is the wire to be identified.
2) Direct connection method: The ground wire of the wire to be identified is disconnected, the signal current output wire (red) is connected to any good phase, and the other end of the connected phase is connected to the ground. The signal current return line (black) is connected to the ground. Cable identification instrument quotation identification method: first determine the phase, based on the initial swing of the meter pointer, and let the current flow in the direction indicated by the receiving clamp according to the direction shown in the figure.
If it is the wire to be identified, the initial swing direction of the meter pointer should be to the right. In the phase judgment process, if there are multiple wires in the same phase, you can compare the amplitude, adjust the sensitivity knob to the appropriate position, and compare the amplitude. The wire with the largest amplitude is the wire to be identified. Shenzhen Noyafa Electronic Technology Co., Ltd. is a high-tech enterprise engaged in scientific research, production and sales, and provides technical services for cable fault detection.
At present, a variety of high-voltage test equipment and testing instruments have been widely used in the industry. At the same time, our company provides technical services such as cable fault detection and substation testing and testing to users across the country. The core engineer responsible for providing technical services has 20 years of on-site testing. Experience, can provide solutions according to different types of cables and site environment. Analysis of cable identification instrument detection methods Cable identification instrument quotation Shenzhen Noyafa Electronic Technology Co., Ltd.
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