Live Line Indicator | 25kV | Pbwel D3/LLI | Voltage Detector

Voltage Detector | Live Line Indicator | PBwel D3/LLI

Voltage Detector

Live Line Indicator

PBwel D3/LLI | Detecting 25kV MV HV Voltages Safely In Substation & Overhead Lines

The D3/LLI Live Line Indicator is a resistive type voltage detector designed for use on overhead a.c. rail electrification systems operating at 25kV nominal voltage which forms part of the PBwel range of voltage detector equipment. The ‘LLI’ threshold is specified as 12kV ± 5%, however induced voltages could reach 10kV.

The live line indicator unit is designed to be mounted on approved fibreglass earthing poles with the pole immediately below the indicator being the primary insulator.

The D3/LLI Live Line Indicator is for providing temporary earth bonds between overhead catenary or contact conductors and earthed rail sections or recognised earthing points.

The signal emitted by the PBwel D3/LLI is both audible and visible. Power is provided by a rechargeable battery, housed within the main unit. The battery can be charged in situ using the charger supplied providing the perfect electrical safety solution.

PBwel D3/LLI comprises a main unit and a contact probe. The contact is manufactured from lightweight fibreglass tubing and houses the calibrated resistor stack. The pole section is foam-filled to increase the voltage that it can withstand. The probe is connected to the overhead line by an aluminium hook. The top of the pole is coated in a special high reflectivity paint to ease visibility when applying the indicator in poor lighting conditions and a limiting collar is fitted to demark the limit of any electrified lines.

The Earth connecting lead is designed to fuse should the unit be misused by applying the main unit directly to traction current and the cable is housed in a protective jacket to shield the operator.

Live Line Indicator

Part Number: EFT-17413 – Kit consists of a Main Unit assembly, Contact Probe assembly, Magnet & Lead Assembly, Battery Charger, Westminster Rail Bag and Rechargeable Battery.

The limit of contact with the overhead line is clearly defined by a red limit collar fixed to the pole. The contact probe screws into the main unit with a special screw connector to minimise flash-over.

Live Line Indicator

Product Benefits

True 12kV +5% threshold
Audible and visual warning
Self-test function
Fully interchangeable
Insulation tested for use at 25kV
Compatible with primary insulator poles
Network Rail Approved
Approval Reference PA05/798

Live Line Indicator | Pbwel D3/LLI

Pbwel D3/LLI Live Line Indicators

Options & Accessories

This robust, precise and easy to use Live Line Indicator is critical to ensuring the electrical safety of workers whilst undertaking tasks on or near overhead lines, catenary wires and rail infrastructure. The Indicators for use with Live Lines provide a clear audible and visual warning when in contact with any live or residual voltages.

Approved for Use on Network Rail 25kV Infrastructure

Part Number	Product Description
EBT-17405	Replacement Battery (Rechargeable)
EMT-17404	Battery Removal Tool
EAT-17417	Contact Probe
EMT-17433	Magnet (Only)
EFR-18183	Standard Bottom Insulated Pole Section with Rainshield
EFR-18184	Standard Bottom Insulated Pole Selection without Rainshield

Voltage Detector | Live Line Indicator | PBwel D3/LLI

Pbwel together with T&D introduce an innovative new electrical safety product to the UK market – ALADIN is an individual voltage alarm with headlamp that attaches to a helmet suitable for use with MV overhead lines in the voltage range of 10-69kV.

Pbwel Voltage Detectors & Equipment