The communication cable fault tester consists of four main parts: the cable fault tester main unit, cable fault locator, cable path tracer, and ultra-lightweight high-frequency high-voltage power supply specially designed for cable fault testing. The complete set of communication cable fault testers can quickly and accurately locate fault points in various cables, and is suitable for a wide range of applications in factories, mines, metallurgy, petrochemical systems, power plants, airports, railways, and power supply departments.
Product Applications
The cable fault tester main unit is used to measure the nature of cable faults, the total length of the tested cable, and the approximate location of the fault point from the test end. The cable fault locator is used to determine the precise location of the fault point based on the approximate position identified by the cable fault tester main unit. For buried cables with unknown routing, the cable path tracer is used to determine the underground cable path. If the specific routing of the underground cable is known, the cable path tracer may not be necessary. The cable fault tester main unit can be directly connected to a laptop for convenient management and operation. The communication cable fault tester is widely used for detecting low-resistance, short-circuit, open-circuit, and various high-resistance faults in aluminum-core and copper-core power cables of various cross-sections below 35KV, high-frequency coaxial cables, and local telephone cables. It is an essential device for ensuring safe power supply and a powerful assistant for cable production and maintenance workers.
Standards Adopted
The manufacturing, testing, and acceptance of this comprehensive cable fault testing system shall not only meet the technical requirements specified herein but also comply with the following standards:
1. GB/T 16927.1-1997 "High-Voltage Test Techniques - Part 1: General Test Requirements"
2. GB/T 16927.2-1997 "High-Voltage Test Techniques - Part 2: Measuring Systems"
3. DL/T 848.1-2004 "General Technical Conditions for High-Voltage Test Devices - Part 1"
Product Components
I) Main Unit Performance Introduction
a. Types of cable faults that can be tested:
For aluminum-core or copper-core power cables of various cross-sections, coaxial cables, and other types of cables: flashover faults or faults with extremely high resistance; enclosed faults or general high-resistance faults; low-resistance faults, short-circuit or open-circuit faults; cable length and propagation speed of electrical waves in the cable.
The cable fault locator is equipped with first-class integrated circuits and amplifiers. The filtering device on the sound channel of the cable fault locator minimizes interference noise while enhancing the sound generated by the arc. The LCD screen can simultaneously display sound pulses, magnetic pulses, and the distance from the fault point to the probe test point. This allows for joint determination of the fault point by listening to changes in underground sound and displaying the distance.
a. Specifications and Parameters
1. Can simultaneously receive sound waves and electromagnetic waves generated by the fault point discharge and display the distance from the probe to the fault point;
2. Display distance: maximum 22.6 meters, minimum distance 0.1 meters;
3. Power supply voltage: 9V;
4. Power consumption: 0.2W;
5. Operating temperature: -10 to 40℃;
6. Dimensions: Locator: 180*80*70; Probe: Ф85*90;
7. Weight: 1.5Kg (including probe);
Cable Path Tracer Performance Introduction
The cable path tracer is an instrument for verifying the routing and burial depth of underground cables. When the cable route is unknown, it is used to locate the path and depth of underground cables.
a. Specifications and Parameters:
1. Test signal: sine wave, frequency 15KHz, 1KHz;
2. Output power: > 30W; Output impedance: >8Ω;
3. Power supply voltage: AC 220V± 10%, 50Hz±1%;
4. Operating ambient temperature: -10 to 40 ℃;
5. Dimensions: 300*250*90
6. Weight: 1.5kg
Note: The above information and technical parameters are compiled and released by Yangzhou Darui Electric Co., Ltd.