Cable fault tester is a professional equipment used to detect cable faults. It can quickly and accurately determine the fault waveform, detect open circuit, short circuit, grounding, low resistance, high resistance flashover and high resistance leakage faults, as well as open circuit and short circuit faults of coaxial communication cables and local cables. In addition, it can also test cable paths, burial depths, as well as radio speed measurement, and determine cable lengths.
In fault pre positioning, measuring the type of fault usually involves the following steps:
1. Insulation resistance measurement: Use a megohmmeter or multimeter to measure the insulation resistance between each phase of the faulty cable. By comparing the insulation resistance values between different phases, the type of fault can be preliminarily determined, such as open circuit, high resistance fault, or low resistance fault.
2. Conductor connectivity test: For conductor faults, use a multimeter to test the connectivity between conductors. If there is an open circuit between the conductors, it indicates a conductor fault in the cable.
3. Observing the appearance: Check the appearance of the cable to see if there are any obvious signs of damage, burning, or breakage. These changes in appearance can provide clues about the type of malfunction.
4. Consider environmental factors: Consider the environmental factors around the cable, such as temperature, humidity, corrosion, etc. These factors may affect the insulation performance and conductor connectivity of cables, leading to different types of faults.
Based on the above measurement and observation results, the type of cable fault can be preliminarily determined. These pieces of information are crucial for subsequent fault pre positioning and precise pinpointing, as they aid in selecting appropriate testing methods and tools to further locate the fault point.
It should be noted that accurate determination of fault types requires comprehensive consideration of multiple factors, including insulation resistance measurement, conductor connectivity testing, appearance observation, and environmental factors. In practical operation, it may be necessary to conduct multiple measurements and observations, and make comprehensive judgments based on experience and professional knowledge.
The ZC-700A2 cable fault tester is a new generation portable cable fault testing instrument carefully designed and manufactured by our company based on user requirements and considering on-site use. The equipment mainly consists of three parts: flash testing, tracking, and positioning. It can be used to detect low resistance, high resistance, short circuit, open circuit, leakage faults, and flashover faults of various cables. It can accurately detect the fault location, cable length, and cable burial path of underground cables. It has the characteristics of accurate testing, high intelligence, wide adaptability, stable performance, and lightweight portability. The instrument adopts an English system with high-definition display and a user-friendly interface.
Cable tracing and fault location are composed of a path finder, a fixer, a T-shaped probe, an A-frame, a receiver, etc. This instrument is a specialized instrument for cable fault location testing, suitable for testing various cables with metal conductors (wire pairs, protective layers, shielding layers). Its main function is to locate and test points with poor ground insulation, detect cable paths, and test cable burial depth.
Kvtester Electronics Technology Co.,Ltd. is a high-tech enterprise specializing in power testing, testing, research and development, production, and sales of testing equipment. It has been engaged in the electrical testing industry for many years, and its products are of high quality. We welcome customers to come and purchase. Service hotline: 0086-27-81778799, to learn more, visit the official website: www.kvtester.com
