Solutions for live cable identifiers

2022/05/24

Author: Noyafa–POE Tester

The solution of live cable identification instrument Live cable identification instrument manufacturers have recently asked customers about the identification of live cables. I hope we can provide a simple and practical live cable identification instrument, which can determine which of a set of running cables is a live cable and which live cable. The solution of the identification instrument Live cable identification instrument manufacturers have recently asked customers about the identification of live cables. We hope that we can provide a simple and practical live cable identification instrument, which can determine which one is a live cable and which one is not in a set of running cables. cable. In fact, this is a simple and complex problem. In general, we judge the 50HZ alternating current on the live cable by identifying the complexity. However, in some special cases, this method will not work. The reasons are as follows: On-site diagram of the cable identification instrument 1 、 If the running cable has voltage and no load, there is no current flowing through the cable, and the magnetic field cannot be detected at this time. 2. If the cable is not running, but if this cable is in parallel with other running cables, there will be an induced current, and the induced current will also generate a magnetic field. At this time, the cable identification instrument will also have an indication. misjudgment occurs.

3. If there are multiple cables in the cable trench, these multiple cables will generate a magnetic field. At this time, there will be a magnetic field generated by a 50HZ current in the entire area. At this time, there will be a magnetic field in the entire area, making the judgment impossible. Misjudgment is easy to occur. The only consequence of misjudgment is personal injury.

Can the live cable identification problem be solved? The answer is yes. Our company's new type of live cable identification and tracer has live cable routing, live cable identification, and 50Hz running cable routing and identification. If the above functions are used interchangeably, the problem of live cable identification is simple.

Below I will introduce these functions in detail. 1. Pathfinding of live cables: The transmitter is clamped on the cable through the coupling clamp, and the transmitted signal of the transmitter can be coupled to the cable (regardless of the running cable or the power failure cable). Through the receiver, we can find the underground direction of the cable and find out the source of the cable.

2. Identification of live cable: (different from people's accustomed understanding), clamp the transmitter on the cable through the transmitting clamp, and connect the receiver with the receiving clamp at the exposed part of the cable at the other end. At this time, according to the signal, it can be judged which one is the signal cable. (This method needs to be equipped with a special receiving clamp).

3. Search and measure 50Hz signal: It has the function of searching and measuring 50Hz signal, which greatly strengthens the judgment function. We can use the receiver to judge the cables with 50Hz signal in the cable group one by one (the cable with 50Hz signal is not necessarily the running cable ). Through the comprehensive judgment of the above three methods, we can easily judge the live cable and the non-live cable. Shenzhen Noyafa Electronic Technology Co., Ltd.

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