Home » High Voltage Installation & Services

High Voltage Installation & Services

In conjunction with our industry partners, engineers and highly trained staff, Contact Group is able to provide a complete turnkey HV solution. Whether its reticulation of sub-divisions, installation of distribution transformers or service & maintenance of plant and equipment, Contact Group can deliver these services in a professional and timely manner.

Contact Group offer the following services in the High Voltage works area:

Installation of transformers – pad mount or building type
Installation of high voltage cables
Installation of high voltage circuit breakers and switching stations –including ABB, Schneider equipment
High Voltage cable jointing
Repair / replacement of high voltage equipment
Upgrading of high voltage installations
Perform audits to Australian Standard 2067 (Substation and high voltage Installations) on existing high voltage installations)
High voltage testing on transformers / cables/ switchgear – VLF (Very Low Frequency) testing, Insulation Resistance testing to 10 kV and oil sampling testing
Installation of earth mats
Provide testing capabilities on earth mats – step and touch voltages (ensuring safe working areas surrounding HV transformers) and soil resistivity testing
Maintenance of high current LV circuit breakers and retrofitting of high current LV circuit breakers
Maintenance of EHV Switchyards – 110 to 220kV
Thermal Imaging of Electrical Equipment

HV Maintenance

Completing the total HV package for our customers we offer and recommend custom scheduled maintenance plans for your HV assets. If you don’t have or are not sure if you require periodic maintenance of your High Voltage (HV) assets please contact us and we can advise you free of charge what your legislative requirements are for your particular case. The regular servicing of HV equipment dramatically reduces high voltage faults that can occur on switch equipment and transformers. Some of the maintenance procedures we recommend are:

Cleaning of HV switchgear
Cleaning of HV insulators, which is best done with our ice blasting equipment.
Thermal Imaging of connection points to ensure no hot spots are present.
Wooden power pole testing and certification
Soil resistivity , earth mat testing and installation
Transformer oil sampling and testing and replacement.
Switch yard vegetation management
Asset auditing and inspections

Power services

Contact Group’s HV team also offers low voltage power service work as well. This covers distribution and installation of 415 & 240 volt cables from high voltage equipment such as pad mounted transformers. Other services also include:

Installation of LV (Low voltage) Boards
Installation of LV cables to LV Boards and main switchboards
LV cable jointing
Installation of turrets / cabinets including new sub division works
Repairs or extension to existing earth mats

Street Lighting

With the aid of an in house design team we offer a complete end to end solution for street lighting installations. We specialise in the design and installation of lighting in new sub divisions for private and commercial applications.