help please!

[Andy™]

Old TT install 'upgraded' to TNS? I thought it was common to take three phases into a house and just use one, looping the others to next house?

rarely TP if looped. normally SP from TP in the street, then both houses on the same phase, then the next block on different phase

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will be installed under supervision of qualified electrician! just trying to understand something that no one appears to teach! wish to learn in the sensible manner of asking questions and hopefully getting answers!

i hope you will be under someone supervision at all times and not just 10 mins when your finishing.

without pics, we cant really help much. you would get a better answer from the electrician who is supervising

 

[Manator]

Sometimes apache you will get a 3ph cable into a single house, and only one of the phases will be used, so you are right in one respect, however a loop will always be on the same phase as Andy has said, the reason for this is that should a fault occur where two phases are present at one head the resulting failure would be 240v+240v

Slim1968.

Earthing if not obvious from visual inspection can be tested to confirm, the person who is supervising you should be able to show you this method of testing.