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–Noyafa Cable Tester
How to solve the problem of live cable identification? The price of live cable identification instrument Recently, customers often ask about live cable identification. I hope we can provide a simple and practical live cable identification instrument, which can determine which one of a set of running cables is live. How to solve the problem of live cable identification? Recently, customers often ask about the identification of live cables. We hope that we can provide a simple and practical live cable identification device, which can determine which one is a live cable and which one is a non-live cable in a set of running cables. 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 lose its effect. The reasons are as follows: 1. If the cable is operated When there is voltage and no load, there is no current flowing through the cable. At this time, the magnetic field cannot be detected, and it is thought that it is an uncharged cable, which is very prone to misjudgment. 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.
Live Cable Identifiers, Cable Identifiers, Solutions for Live Cables Can Live Cable Identification Problems Be Solved? The answer is yes. Our company's new machine and cable comprehensive detector has the functions of routing of live cables, identification of live cables, and routing and identification of cables running at 50Hz. If the above functions are used interchangeably, the problem of live cable identification is simple.
Below I will introduce these functions in detail. 1. Path finding 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 (whether the cable is running or the cable is powered off). Through the cable identifier 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: Due to the function of searching and measuring 50Hz signal, this function 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 running. cable). Through the comprehensive judgment of the above three methods, we can easily judge the live cable and the non-live cable. Live Cable Identifier Price Shenzhen Noyafa Electronic Technology Co., Ltd.
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