Choosing a suitable cable fault tester requires comprehensive consideration of functional requirements, performance indicators, usage environment, ease of operation, brand, and after-sales service to ensure that the equipment can efficiently and accurately locate cable faults. Here are specific suggestions:
1. Clearly define functional requirements
① Fault type detection capability
Select equipment that supports fault detection such as low resistance, high resistance, short circuit, open circuit, and grounding according to actual needs.
For example, if a high-voltage cable fails, an instrument that supports high-voltage flashover method needs to be selected, while a low-voltage cable needs to have low-voltage pulse reflection function.
② Testing distance and accuracy
The testing distance should cover the actual cable length (such as 32km or longer), and the accuracy should reach the meter level or even higher (such as ± 0.1m).
High precision equipment can reduce omissions or misjudgments, for example, testers using multiple pulse methods can improve accuracy through waveform comparison.
③ Intelligent functions
Prioritize equipment with automatic analysis, waveform recognition, one click positioning, and other functions to significantly improve testing efficiency.
2. Evaluate performance indicators
① Sampling rate and resolution
The sampling rate should be ≥ 100MHz and the resolution should be ≤ 1m to ensure clear waveform details and accurate fault location.
② Diversity of testing methods
Support various technologies such as low-voltage pulse method, high-voltage flashover method, and multiple pulse method to adapt to different fault scenarios.
The multiple pulse method can eliminate interference, improve waveform clarity, and reduce the risk of misjudgment.
③ Anti-interference ability
Industrial grade hardware design, such as industrial grade integrated circuits and large capacity lithium batteries, can enhance device stability and adapt to complex environments.
3. Match the usage environment
① Voltage level and cable type
Ensure that the equipment supports the voltage level of the target cable (such as 35kV and below) and cable type (such as cross-linked polyethylene, polyvinyl chloride, etc.).
② Environmental adaptability
If it needs to be used in harsh environments, equipment with waterproof, dustproof, and low-temperature resistance characteristics should be selected.
4. Evaluate operational convenience
① Human Computer Interaction Design
Prioritize devices equipped with high-resolution touch screens, full Chinese menus, and one click operation to lower the barrier to entry.
② Portability and battery life
Outdoor work should pay attention to the weight (such as ≤ 5kg), volume, and battery life (such as ≥ 4 hours) of the equipment, making it easy to carry and use for a long time.
ZC-700D power cable fault rangefinder is used for distance measurement of power cable fault points. It has the characteristics of easy waveform recognition, high resolution, user-friendly interface, support for both touch and mechanical buttons, and easy operation.
Can be used independently in low-voltage pulse mode; In pulse current mode, it needs to be used in conjunction with a high-voltage signal generator; In the multiple pulse mode, it is also necessary to cooperate with the cable testing multiple pulse coupler; After the distance measurement is completed, a digital multifunctional cable fault locator must be used for precise positioning. They together form a high-performance cable fault finding system that can provide multiple innovative features.
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
