The street lamp cable fault tester is used to locate and test the fault point of the direct buried street lamp cable, the direct buried high and low voltage cable, and the metal conductor of the optical cable to the earth's poor insulation. It is applicable to all kinds of cables with metal conductors (pairs, protective layer, shielding layer) and metal conductors (wire pairs, protective layer, shielding layer), and the dead ground faults that cannot be located by the high-voltage cable discharge acoustic test, railway signal lines, low-voltage power and lighting buried cables and the earth forming a loop. Its main function is to detect the cable routing and the depth of cable burying in addition to the positioning test of the poor insulation point to the ground.
This instrument uses a quartz crystal oscillator, medium and large-scale integrated circuits. It is characterized by high receiving sensitivity, low static drift, strong anti-interference ability, stable work and high accuracy. Because the instrument is powered by a small nickel-cadmium battery, the instrument has the advantages of small size, light weight, low power consumption, and easy portability, and is especially suitable for field operations.
Main technical performance
1. The distance between the detection route and the fixed point of the fault: the low-voltage cable is ≥3km, and the high-voltage direct-buried cable is ≤10Km.
2. Accurately fixed-point fault insulation resistance: 0～5MΩ.
3. Accuracy of positioning test: ≤±10cm.
4. Detection cable depth: ≤3m.
Mobile version
15388193573
