Coal mine is a large cable use, due to underground operating conditions of the harsh environment, so a variety of cable ring loss is relatively large, in order to save money to reduce line production costs, the mines are generally equipped with their own cable maintenance team.But due to testing Equipment and process limitations In the repair of fully mechanized mining and other cables, flaw detection tests are often unsatisfactory, and most of the cable insulation damage to the greater use of forced breakdown method. The device is a cable fault detector cable does not destroy the original Structure based on the premise of the partial discharge method of abrasion, can easily and accurately detect the damage to the site of the cable, but also both the function of the test after the repair, it is the current coal mine cable repair business can fully trust the tool.
Second, the main technical parameters:
Current and voltage: single-phase AC 220V, 50Hz
Detection of DC output voltage: 0-30KV (Button control)
Cable inspection accuracy: 50 mm Within
Test output DC voltage: 0-30KV (Button control)
Automatic pressure test time: 0-30Minute (Can be set)
Leakage current test range: 0-100 microampere
Main transformer rated capacity: 3KVA
Rectification: single-phase half-wave
Discharge ball gap: handle rod adjustment
Dimensions: 1100 x 1000 x 1200 mm

Weight: approx 100 Kg
Third, the use of environmental conditions:
1, Ambient temperature: -5Lt; 0 & gt; C-+ 40Lt; 0 & gt; C;
2, Air relative temperature: not more than 85% (Temperature is 20Lt; 0 & gt; C±5Time) ;
3, Altitude: not more than2500m;
4, There is no danger of explosion around the medium, and the medium is not enough to corrode the metal and damage the electrical insulation of the gas and dust;
5, No significant impact vibration, and no rain and snow invasion of the place.
Fourth, the structural characteristics:
1, This equipment by the control part (low voltage) and high voltage rectifier, discharge and test the composition of his high and low voltage, high and low pressure and the shell are left between the sufficient security space.
2, In order to ensure the safety of equipment and personnel, high-pressure start before the person must use the key to operate.
3, Each test or test the cable, can ensure that the high voltage starting from the zero Xu Boost, high and low pressure limit shape, step-up or step-down process by the button control, smooth voltage rise and fall, safe and easy operation .
4, DC voltage test time can be automatically from the digital (also by manual control), test time accurate and reliable.
5, Leakage current can be measured according to the needs of the pressure test process at any time.
6, The device has over-current and short circuit protection, there are pre-warning warning and over-current protection.
7, In the control panel with power switch, high voltage start, high pressure stop, boost, buck and other switches or buttons, there are pressure test digital time timer relays.
8, In the display panel with high voltage, leakage current and low voltage total current measurement meter, with power, high pressure, timing and other indicators of the ball gap discharge observation window and so on.
9, Equipped with a dedicated high-voltage discharge rod for each inspection or test discharge after discharge to ensure safety, the box at the bottom of the ground signs.