Distance between cold pipe cross over hot

[Tezzer2022]

Hello
I need to cross over an existing copper hot water pipe with a cold 15mm mains copper pipe. Is there a standard I need to adhere to in terms of clearance?

 

[Ben-gee]

No. It’s good if you can get some insulation at that point but not critical.

 

[Tezzer2022]

No. It’s good if you can get some insulation at that point but not critical.

Thanks for the response.
Is that insulation on both or just the hot?

 

[Ben-gee]

Both, to stop hot giving off heat and stop cold absorbing heat.

 

[Tezzer2022]

Both, to stop hot giving off heat and stop cold absorbing heat.

No. It’s good if you can get some insulation at that point but not critical.

Both, to stop hot giving off heat and stop cold absorbing heat.

Thanks Ben-gee