Bundled Phases

[Scotford14]

Hey guys,

Has anyone heard of bundling two phases together at the cut out. A Guy form the energy board was moving the main cut-out and told me they used to do it years ago.

Does he mean 2 cores (in the same cable) on the same line incoming form the transformer?

Surely you cant put two phases together without a major short circuit?

Never heard of this before so just curious to find out what he was talking about.

Thanks

 

[Sintra]

Heard the term before but what the guy actually meant was a parallel supply cable.

 

[Knobhead]

Done a lot for DC. It's cheaper to buy a 70mm 4c than a 150mm 2c.

 

[mechelec]

Some DNO's still bunch OH conductors such as 4 core ABC used to supply single phase. 2 cores each for neutral and phase. Helps reduce VD and Ze.