MMG 5
Sheath Tester MMG 5 is mainly designed for the withstand voltage testing of cable sheaths made of PE or PVC as well as for locating sheath faults on shielded plastic-insulated cables and the detection of earth-leakage faults in plastic-sheathed cables. In conjunction with Sheath Fault Prelocation Device MVG 5, sheath faults can be prelocated.
The following measurements can be taken:
- Sheath fault prelocation on shielded medium-high voltage cables.
- Prelocation of line-to-earth faults on plastic-insulated low-voltage cables.
Pin-Pointing is carried out by means of the Line-to-Earth Fault Locating Device ESG 80-2 using the method of measuring the step voltage. Due to the excellent burn down effect achieved by the full-wave rectification, this device is very well suited for converting high-resistance cable faults in low-voltage power cables into low-resistance ones.
Moreover our new Sheath Tester MMG 5 has further special features such as:
- Continuously adjustable output voltage in voltage ranges 500, 1000, 2000, 5000 V
- Protection against overload by voltage and current control
- Fault location at reduced power to prevent damages to adjacent wires or cables
- Indication of voltage and current by two analogue indicating instruments
- Automatic discharge unit provides for removal of residual charge and for earthing the test object
- Clock-controlled operation of the voltage source to prevent the drying-out of faults when pinpointing sheath faults
- Excellent burn down effect through full-wave rectification
Accessory equipment:
- Earth Fault Locating Device ESG 80-2
- Earth spikes with measuring leads EEB
- Sheath-Fault Prelocating Device MVG 5
- Emergency-off switch NAG 1 for stand-alone operation
For operation with Sheath Fault Prelocating Device MVG 5:
- Emergency-off switch NAG 2
