Good photo's.

We have similar problems here in Auckland too.
With a lot of road widening for extra buslanes etc streetlights circuits are usually first affected by botch up jobs, or hide it and she'll be right.

Within a few weeks, months the problems start appearing by intermittend blowing of section fuses on these streetlight circuits.

Then I go on site for a cable fault locate and mark out, and the new asphalt road will be cut open and poorly made breach joints are found, crushed j boxes, or just linetaps with some almalgamating tape around it.
Heads should roll here but it never seems to happen.

With these road widening projects I maintain that a complete new S.L. supply is run on the outer verge of the road feeding the new lights prior to disableing the old supply.
Also no breach joints underground which usually give troubles later on on when not properly done by subcontractors.
Then cables in, out of S.L. poles to complete the streetlight strings.

but,
cheap is very attractive short term,

and becomes
very expensive and inconvenient later on when faults will happen.

Why not do the jobs properly in the first place.


The product of rotation, excitation and flux produces electricty.