Product Details

Technical Parameters:
1. Test distance not less than 10 kilometers.
2. Fault point location error less than 0.5 meters.
3. Cable path detection not less than 10 kilometers.
4. Host initial measurement error less than 2%.
5. Host power supply: AC 220V 50HZ ±10%
6. Host dimensions: 350×250×220 (mm)
7. Host weight: 5 kg
8. Point locator power supply: DC 9V
9. Point locator dimensions: 170×135×60 (mm) (excluding probe and earphones)
10. Point locator weight: 0.5 kg (excluding probe and earphones)

Features:
1. High receiving sensitivity
2. Low static drift
3. Strong anti-interference capability
4. High accuracy and stable operation
5. Dual AC/DC power supply
6. LCD digital display

Testing Methods:
Eight-pulse method; impulse high-voltage current sampling method; low-voltage pulse method
2. Impulse high voltage: below 42KV
3. Data sampling rate: 48MHz, 24 MHz, 12MHz, 6 MHz
4. Test distance: 16Km  Reading resolution: 1m
5. No test blind zone, system test accuracy less than 50cm
6. Test cable length settings: short distance (＜1Km ); medium distance (＜3Km); long distance (＞3 Km) three types.  
7. The multiple pulse cable fault tester/cable fault tester automatically displays the eight-pulse transmission and fault reflection signals, making the representation of fault characteristic waveforms extremely simple. All high-resistance fault waveforms have only one type, which is similar to the short-circuit fault waveform in the low-voltage pulse method.
8. Test waveform storage function: can conveniently store the waveforms measured on-site in the instrument in a specified order for later viewing at any time. It can store a large number of on-site test waveforms.  
9. Can display the measured fault point waveform and the full-length open-circuit waveform of the good phase simultaneously on the screen for same-screen comparison and overlay comparison. This makes the judgment of fault distance more accurate.

Fault Causes:
1) Mechanical damage
Cable faults caused by mechanical damage account for a large proportion of cable accidents. According to statistics from Shanghai, the proportion of faults caused by external mechanical damage. Some mechanical damage is very slight and does not cause a fault at the time, but the damaged area may develop into a fault after several months or even years. The main causes of mechanical damage to cables are as follows:
Cable fault tester 1) Damage during installation: accidental collision of the cable during installation, excessive mechanical traction force causing cable strain, or excessive bending causing cable damage;
2) Direct external force damage: after installation, urban construction on the cable route or near the cable causes direct external force damage to the cable;
3) Vibration from moving vehicles or impact loads can cause cracking of the lead (aluminum) sheath of underground cables;
4) Damage caused by natural phenomena: such as expansion of insulating compound in intermediate joints or terminations causing the shell or cable sheath to burst; abrasion of the cable sheath at pipe mouths or supports due to natural cable movement; excessive tension caused by land subsidence, breaking intermediate joints or conductors.

Product Features
Power instrument cable safety piercing tester - with remote control for intermediate joints and terminations. Improper waterproofing and electric field distribution design, inappropriate material selection, poor workmanship, and failure to produce according to specifications can cause cable joint faults.