This is the layer people can reach
LT lines run over yards, sheds, gates and footpaths. A low span or a broken tie on an LT run is a direct contact risk, not just an outage — which is why clearance and insulation get checked, not assumed.
Installation Services / 01b
Overhead LT Line
415 V distribution from the transformer to the load — bare LT lines, aerial bunched cable, street lighting circuits and service connections.
415 V, three phase and neutral, from the transformer LT side to the service connection. AB cable replaces bare conductor where the run passes close to buildings, and the neutral is earthed again at each distribution point — not only at the transformer.
The Work
LT overhead is the last stretch: transformer LT side to the distribution box, the shed, the pump or the pole light. It is the part of the network people actually touch, which is why insulation, clearance over roads and yards, and proper neutral earthing matter more here than anywhere else on the system.
Bare LT on cross-arms is cheaper to build; aerial bunched (AB) cable costs more and pays it back in fault rate, theft resistance and safety where the run passes close to buildings, trees or a public road. We will tell you which one the run actually wants rather than defaulting to whichever is quicker to string.
Scope Covered
- Bare LT line on pin insulators and cross-arms
- LT aerial bunched (AB) cable stringing and anchoring
- Distribution boxes, feeder pillars and service connections
- Street and yard lighting circuits with poles and fittings
- Neutral earthing and pole earthing at every distribution point
- Load balancing across phases and re-connection of existing services
415 V
3-phase 4-wire
240 V
Single-phase service
AB Cable
Where clearance is tight
Why It Matters
Where This Work
Decides The Outcome
Unbalanced phases burn the neutral
LT loads get added over years and rarely get re-balanced. The result is neutral current, overheating and voltage complaints at the far end. Balancing at the time of work costs nothing and prevents all three.
Earthing is what makes protection work
An LT fault only clears quickly if the earth path is sound. Neutral and body earthing at the transformer and at each distribution point is the reason a fuse blows instead of a frame staying live.
How We Execute
Survey To Handover
01
Load & route check
Connected load, phase balance and span conditions assessed to choose between bare LT and AB cable.
02
Erection
Poles, cross-arms, insulators or suspension clamps fitted; conductor or AB cable strung and anchored.
03
Distribution & services
Distribution boxes and feeder pillars mounted, service connections tapped and terminated.
04
Earth & energise
Neutral and pole earthing completed, insulation and earth resistance recorded, circuit energised and checked on load.
Have A Site
To Look At?
Send the load, the voltage level and the location. We survey, then quote against a defined scope.