Discuss The dreaded hot tub!! in the Electrical Forum area at ElectriciansForums.net

Welcome to ElectriciansForums.net - The American Electrical Advice Forum
Head straight to the main forums to chat by click here:   American Electrical Advice Forum

Reaction score
20
Hi Guys

So I've never installed a hot tub supply before so take it easy on me. I've spent a bit of time researching it myself and its a minefield of conflicting information.

From what i've gathered I need to run from the DB to a rotary isolator. RCD at DB. Connect armouring of swa at DB end but not at isolator. Install earth rod at isolator. Isolator to be at least 2M from hot tub.

I've been to look at the install today and need some advice.

DB is plastic dual RCD (type AC 63A) 100A main switch.
Earthing arrangement is PME.
Hot tub is to be located just next to the conservatory at the back of the house on the patio.

Do I have to change the DB or is it a recommendation that the customer can choose to ignore for now?
Can I just upgrade the RCD's to type A?
Could I split the supply via henley blocks to a stand alone RCD unit and ignore the DB?
Do I need an RCD local to the hot tub?
What cable is used to connect from isolator to hot tub? SWA or H07RN-F flex?

I feel like I'm getting myself at it a little bit so any advice would be greatly appreciated.

Tom
 
Hi Guys

So I've never installed a hot tub supply before so take it easy on me. I've spent a bit of time researching it myself and its a minefield of conflicting information.

From what i've gathered I need to run from the DB to a rotary isolator. RCD at DB. Connect armouring of swa at DB end but not at isolator. Install earth rod at isolator. Isolator to be at least 2M from hot tub.

I've been to look at the install today and need some advice.

DB is plastic dual RCD (type AC 63A) 100A main switch.
Earthing arrangement is PME.
Hot tub is to be located just next to the conservatory at the back of the house on the patio.

Do I have to change the DB or is it a recommendation that the customer can choose to ignore for now?
Can I just upgrade the RCD's to type A?
Could I split the supply via henley blocks to a stand alone RCD unit and ignore the DB?
Do I need an RCD local to the hot tub?
What cable is used to connect from isolator to hot tub? SWA or H07RN-F flex?

I feel like I'm getting myself at it a little bit so any advice would be greatly appreciated.

Tom
If you make the install tt with a rod near to the tub,you could supply it from a separate dp rcd or a dp rcbo if you could find one to fit the board.S
 
With the price of electric going up through the roof , I am surprised people are still buying hot tubs

My neighbours spent£4500 on one during the lockdowns , I just went round the other day and disconnected it for them as they are getting rid of it. Its simply to expensive to run.
 
There's an excellent David Savery video on the topic which covers the various issues pretty well I think:


Possibly not one to watch with the client though due to David's unique presenting style 😁 - but also full of good information.
 

Reply to The dreaded hot tub!! in the Electrical Forum area at ElectriciansForums.net

OFFICIAL SPONSORS

Electrical Goods - Electrical Tools - Brand Names Electrician Courses Green Electrical Goods PCB Way Electrical Goods - Electrical Tools - Brand Names Pushfit Wire Connectors Electric Underfloor Heating Electrician Courses
These Official Forum Sponsors May Provide Discounts to Regular Forum Members - If you would like to sponsor us then CLICK HERE and post a thread with who you are, and we'll send you some stats etc

Electrical Forum

Welcome to the Electrical Forum at ElectriciansForums.net. The friendliest electrical forum online. General electrical questions and answers can be found in the electrical forum.
This website was designed, optimised and is hosted by Untold Media. Operating under the name Untold Media since 2001.
Back
Top
AdBlock Detected

We get it, advertisements are annoying!

Sure, ad-blocking software does a great job at blocking ads, but it also blocks useful features of our website. For the best site experience please disable your AdBlocker.

I've Disabled AdBlock