Ring final spurred off from a JB to each socket

[bhm1712]

My house is a late sixties house and is in need of rewiring - but I’m just wondering if there is any reason that in the sixties an electrician would wire the socket circuit as a ring final but then for each socket outlet, instead of going into the socket and back out, they wired the ring final to a junction box and then spurred off in a single 2.5mm to the sockets? I have found this on all of the downstairs socket circuit. Just seems odd. It looks to be original as the twin and earth is of the same white insulated green goo type.

Thanks

 

[Rodders53]

Well it would save a small amount of cable but add the cost of the JBs... And there are ways of inserting a JB on an existing cable to permit that without cutting the ring wires (but with no earth sleeving)... if, say, one wasn't sure about where to place the sockets 'til later.

Perhaps.

60s and 70s copper prices were high... The goo is well known about https://electrical.theiet.org/wirin...domestic-installation-some-possible-problems/

 

[flameport]

they wired the ring final to a junction box and then spurred off in a single 2.5mm to the sockets?

It was a style which was used at the time.

 

[ericmark]

I did a cheese factory that way, the reason was to reduce volt drop. Due to the fridge having high walls and the volt drop going up/down the walls, but in a normal house one would have not expected it to be big enough to need it.

 

[Murdochcat]

Definitely a 50’s or 60’s style coupled with hiding the junction boxes in very inaccessible places.

A PITA

 

[morqthana]

My house is a late sixties house and is in need of rewiring - but I’m just wondering if there is any reason that in the sixties an electrician would wire the socket circuit as a ring final but then for each socket outlet, instead of going into the socket and back out, they wired the ring final to a junction box and then spurred off in a single 2.5mm to the sockets? I have found this on all of the downstairs socket circuit.

Solid floor downstairs?

 

[securespark]

I've worked with many mid-century installations over the decades.

Admittedly only a scant handful of 1940s wired properties, with lead-sheathed cable, fitted with clamps round the sheath and metal junction boxes, also with clamps.

Then 1950s installations, with rubber and more junction boxes.

But the 60s, there seemed to be an explosion of junction boxes, especially in power circuits.

The biggest mystery to me regarding junction boxes though, is that, up to at least part of the 1960s, lighting circuits were being wired two plate with a junction box, yet as far back as August 1914, BS67 laid out specifications for two and three plate ceiling roses.