TT system do I need to fit a main switch or time delayed RCD switch?

[baazab]

Hi everyone I'm ready to do second fix on a rewire it's a tt system all my circuit will protected by individual rcbos
Do I need main switch to be normal dp switch or time delay rcd please help.

 

[MDJ]

if every circuit is protected by individual RCBOs then a main double switch is fine

 

[mainline]

Hi everyone I'm ready to do second fix on a rewire it's a tt system all my circuit will protected by individual rcbos
Do I need main switch to be normal dp switch or time delay rcd please help.

Is the consumer unit fed by a cut-out ? Or a sub main ?

 

[baazab]

Mains 100amp fuse cut-out

 

[mainline]

Mains 100amp fuse

Then as said if all circuits are rcbos and the Ra is low enough then a main switch is fine.

 

[baazab]

if every circuit is protected by individual RCBOs then a main double switch is fine

Thank you

 

[baazab]

Then as said if all circuits are rcbos and the Ra is low enough then a main switch is fine.

Big respect thanks