Product Use of Cable Safety Piercing Device:
It is used to measure the distance from the fault point to the measuring point (transformer) when a power cable experiences a *-type ground fault (short circuit) or open circuit (disconnection). The cable fault comprehensive tester (range finder) is used for overhead transmission lines of 10kV and above voltage levels. When a fault occurs, as long as the faulty line is tested in the substation, the fault distance can be accurately measured, the faulty tower can be determined, facilitating rapid fault location by repair personnel and shortening repair time. This instrument must be used on the basis of line outage. It has the characteristics of small size, easy portability, built-in lithium battery, dual AC/DC power supply, and convenient operation.
Product Features of Cable Safety Piercing Device:
○Complete Functions
Safe, rapid, and accurate fault testing; the instrument adopts the low-voltage pulse method, which can test various faults of cables and accurately determine the distance from the fault point to the test point;
○High Testing Accuracy
The instrument adopts high-speed data sampling technology, with an A/D sampling speed of 100MHz, enabling a reading resolution of 1m and a detection blind zone of 1m;
○High Intelligence
Test results are automatically displayed on the large-screen LCD in the form of waveforms and data, making fault judgment intuitive; it is also equipped with a full Chinese menu display operation function, requiring no special training for operators;
○Adopts non-volatile devices, so waveforms and data are not lost after power-off, with waveform and parameter storage and recall functions;
○Has dual-trace display function, allowing arbitrary adjustment of the positions of dual cursors to directly display the direct or relative distance between the fault point and the test point;
○Can compare the test waveform of the faulty cable with the normal waveform, which is conducive to further judgment of the fault;
○Has waveform expansion ratio function; changing the waveform ratio can expand the waveform for precise testing;
○Has the function of modifying the propagation speed at any time according to different tested cables;
○Small portable shape, with built-in rechargeable lithium battery power supply, convenient for carrying and use.
○Has printing function, which can print the graphics and data on the screen in real time.
○Has USB interface, and can communicate with a computer through the host computer program.
Technical Parameters of Cable Safety Piercing Device:
Application Scope and Use
The instrument can test various types of power cables (voltage levels 1KV to 35KV) and local telephone cables, FM communication cables, coaxial cables, and faults such as short circuits, ground faults, and cable breaks or poor contact on metal overhead lines; it can also test the length of cables and the propagation speed of radio waves on cables.
It is suitable for testing various optical cables and cables with metal conductors (wire pairs, sheaths, shielding layers). Its main functions are to locate and test points of poor insulation to ground, detect cable paths, and test cable burial depth.
○Longer test distance: 200Km
○Detection blind zone: 1m
○Reading resolution: 1m
○Power consumption: 5VA
○Operating conditions: ambient temperature 0℃～＋40℃
(Extreme temperature －10℃～＋50℃)
Relative humidity 40℃ (20～90)%RH
Atmospheric pressure (86～106) Kpa
○Volume: 275×220×160mm3 ○Weight: 4kg
1. Tracing and positioning distance: for local telephone cables, 3km; for other cables, up to 20km
2. Positioning impedance range: 0~5MΩ
3. Positioning accuracy: <±10cm
4. Burial depth detection: <3m
Panel Structure:
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