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Cable Detection & Fault Location
SEBA KMT Digiflex
Low Voltage Cable Fault Location in Underground Street Lighting Cables
SEBA KMT Digiflex LV street lighting cable fault locators are compact and reliable for detecting cable faults and measuring lengths of power and motorway telecomms cables with XLPE, PE, PVC insulation.
Digiflex permits precise measuring results (up to 30,000 metres) even in the near range <5m and for live low voltage cables.
Pictured: SEBA KMT Digiflex Street Lighting Cable Fault Locators
SEBA KMT pulse reflection is employed whereby a string of suitable pulses is sent down the street lighting cable which are wholly or partially reflected back from the fault - the size and shape of these indicate the type of cable fault.
Fault Location in Low Voltage Copper Cables over 30km Range - How?
The SEBA Digiflex reflectometer transmits short electrical pulses of just a few volts and pulse width of nano to micro seconds between two connected copper cable conductors.
Each impedance change causes partial reflection of the pulse back to the device. The reflectometer calculates the distance using time between transmitted pulse and reflection: the distance appears as a trace on the display.
This can be used to identify street lighting cable ends, short circuits, power interrupts, cable joints and cross-talk.
SEBA KMT Digiflex Cable Fault Locators - Features & Benefits
Low Voltage Cable Identification - UKPN Guide
Cable Fault Location Instrument - Street Lighting - SEBA KMT Digiflex