LV Fault Location (220/380 or 230/400)

We provide LV fault location on LV cable networks maintaining the continuous power supply on cable suffering intermittent cable faults. Underground ground cables are normally reliable if not disturbed. Common causes of LV cable faults include vibration and subsidence and other companies digging or excavating nearby. Any damage to the cable allows water in the ground to get in and cause the break down. It may be months before the problem gets bad enough to cause a power cut. Faults on LV underground cables can often be intermittent and very hard to find.

MV Fault Location (1000v/44kv)

We provide MV fault location on MV cable networks maintaining the continuous power supply on cable suffering intermittent cable faults. Underground ground cables are normally reliable if not disturbed. Common causes of MV cable faults include vibration and subsidence and other companies digging or excavating nearby. Any damage to the cable allows water in the ground to get in and cause the break down. It may be months before the problem gets bad enough to cause a power cut.

Cable faults on underground MV cables may have several causes such as:

• Poor quality of cable laying, absence of mechanical protection
• Bad quality of cable terminations confection
• Damages caused by excavators or tools such as pneumatic drills
• Over voltages generated by lightning strokes occurring on overhead line connected to underground cables. The over voltages can be amplified causing the destruction of the cable terminations. Lightning arrestors, are often installed at these locations to limit the risks of damages.

HV Fault Location (44kv and above 220kv)

We provide HV fault location on HV cable networks maintaining the continuous power supply on cable suffering intermittent cable faults. Underground ground cables are normally reliable if not disturbed. Common causes of HV cable faults include vibration and subsidence and other companies digging or excavating nearby. Any damage to the cable allows water in the ground to get in and cause the break down. It may be months before the problem gets bad enough to cause a power cut.