Copper pipe underground

[stratplus]

Need to run copper tube underground for around 16 metres. Have seen plastic covered copper in coils in the size I am after but is this suitable for underground?
It is table x to bs 1057. Not sure if this pipe is only for running in chases/screeds etc but not underground.
Been looking at the different tables x, y, w and z. Soft copper/ half hard etc. If it is coiled has this been annealed and would that make it of a table other than x?
Had straight lengths come but this said table x so not sure if coiled would be a different table (annealed)?.
Can't find any clear answers on google or copper board/standards.

 

[Leo21]

Why copper?

 

[Ermintrude]

Why copper is it contaminated land? If not I would use unipor placca

 

[Ermintrude]

Why copper?

Same thought process

 

[stratplus]

Company specified copper. Just gotta join from meter to a copper pipe already placed in wall. Easier to get end feed fittings etc rather than going from plastic to copper with reducers/bulky plastic fittings etc.

 

[Leo21]

Company specified copper. Just gotta join from meter to a copper pipe already placed in wall. Easier to get end feed fittings etc rather than going from plastic to copper with reducers/bulky plastic fittings etc.

Thats daft! Plastic is much better under ground or floor.

 

[stratplus]

I agree but company won't send it. Having to use 28mm plastic covered copper coil but I'm dubious if its the right stuff.

 

[Destroyer2813]

Another question how deep they saying to bury it ?

 

[stratplus]

Another question how deep they saying to bury it ?

Will be 375+ as in open ground. Another property will be 40mm+ as under a pathway.

 

[stratplus]

Theyll dig to the depth I specify!

 

[Roger Welton]

There is a hse note around about metallic pipe underground, it all needs ripping out and replacing in the next few years.

 

[tamz]

Coiled copper is table Y or W on smaller sizes.

 

[stratplus]

Coiled copper is table Y or W on smaller sizes.

The plastic covered straight was labelled table "x". The coil isn't labelled only 1057. So coiled pipe is annealed table "y" is that right.

 

[stratplus]

On 22 and 28mm pipe.

 

[tamz]

Aye. If its coiled its table Y. You can't coil table X.