Ring final circuit vs Radial final circuit

[telectrix]

I'm a big fan of the ring circuit in general but I would be in favour of outlawing the ring final circuit in domestic installations

Reason being that it's not a necessity and it would prevent hazardous situations such as breaks in the ring and overcurrent on spurs

still useful in a kitchen though. where the load would require a 4.0mm radial.

 

[DPG]

I'm a big fan of the ring circuit in general but I would be in favour of outlawing the ring final circuit in domestic installations

Reason being that it's not a necessity and it would prevent hazardous situations such as breaks in the ring and overcurrent on spurs

But if you get a break in the CPC in a ring circuit, at least you still have a CPC present.

Pros and cons of both circuits really.

 

[littlespark]

We’ve had this same discussion on a much more recent thread. No point going over it all again.

 

[DPG]

We’ve had this same discussion on a much more recent thread. No point going over it all again.

Fair point.

 

[LastManOnline]

We’ve had this same discussion on a much more recent thread. No point going over it all again.

Agree. Although I find the "ring circuit better for the environment" argument interesting. Smacks of desperation to me.

 

[LastManOnline]

But if you get a break in the CPC in a ring circuit, at least you still have a CPC

Except that it will be undersized and go undetected until the next full inspection.

 

[DPG]

Except that it will be undersized and go undetected until the next full inspection.

Oh yes, it's far from ideal I realise that. But on a radial it would be non existent.

 

[LastManOnline]

still useful in a kitchen though. where the load would require a 4.0mm radial.

You have hit the jackpot there TEL. Run a 4mm radial instead of a ring circuit. Let's see... get rid of the two 2.5mm,s.Replace with a 4mm.Thats a, saving of 1mm of copper per circuit. Think of the benefits for "the environment" ?

 

[7029 dave]

4mm radial x2 =8mm= no saving ?

 

[Pretty Mouth]

Except that it will be undersized and go undetected until the next full inspection.

Probably wouldn't be undersized, from an adiabatic point of view, unless rewireable fuses. From a Zs POV, possibly, but not if RCD protected.

 

[Petej999]

Agree. Although I find the "ring circuit better for the environment" argument interesting. Smacks of desperation to me.

What do you mean by "smacks of desperation"

 

[LastManOnline]

What do you mean by "smacks of desperation"

Well when you offer an arguement for which system or accessory might be more advantageous over another, people usual put forward sound electrical reasons. Its only in connection with the ring circuit that I hear "environmental reasons" been put forward. That to me smacks of a poor defence for a wiring system that sadly (and through no fault of its own) is simply viewed worldwide (with a few exceptions) as inferior

 

[LastManOnline]

4mm radial x2 =8mm= no saving ?

I meant a single 4mm radial. But anyway, it was meant in jest?

 

[7029 dave]

I meant a single 4mm radial. But anyway, it was meant in jest?

I'm only mucking about meself , Lastman .