16amp surply

[piman]

Hello Brightspark,

that's what I've been used to, and heavy stuff such as large motors or transformers usually have multiple cables. (And very hard work bending the cores to connect them)

Alec

 

[steve_morris]

In domestic applications 1.5 is typically used for lighting circuits and anyone using it to wire a 16 amp cicuit is mental !
The whole point of using cable overated for the circuit is to give a generous safety margin.

you can use 1.5 to wire a 16a socket. i wont go through the full details, but providing the cable has an adequate rating for the load, volt drop is within limits, ZS is within limits, cable is protected against overload & fault current, then there is nothing wrong with it.

now accoring to 7671 you could use a 20A MCB to protect the 16a socket. in which case you would need 2.5, or possibly 4mm

additionally, in most cases like this, the extension / power lead plugged into said socket will only be 1.5 flex. sometimes 2.5.

and there is no such thing as 'lighting cable' or 'socket cable', as you are implying. just happens that 1.5 & 2.5 are suitable and therefore commonly used. its also acceptable to wire a lighting circuit in 1mm (almost most dont due to the fact the copper can be too thin to work with at times and snaps easily)

 

[steve_morris]

no diffrent to a broken leg in a ringmain carrying 30 amp on a piece of 2.5mm its a fault that happens as regular as clockwork not good but who am i to say i dont make the regs just adhere 2 them. thats the downside to ringmains

all ring circuits have that design flaw. on the plus side, if it was the earth, then there would still be an earth. this is why you should have an electrician check the wiring every 5-10 years

 

[steve_morris]

and it would also appear as though the mods dont like there members being told to keep to what they know instead of giving out bad advice on something they obviously have no clue over...


just remember, get it wrong and it probably will be some innocent person who is killed instead of you.

 

[Welderpaul]

and it would also appear as though the mods dont like there members being told to keep to what they know instead of giving out bad advice on something they obviously have no clue over...

No Steve, what we don't like is members such as you coming onto the forum and posting unecessary inpolite comments. There is no need.

 

[Robotstar5]

and it would also appear as though the mods dont like there members being told to keep to what they know instead of giving out bad advice on something they obviously have no clue over...


just remember, get it wrong and it probably will be some innocent person who is killed instead of you.

If you read the posts, all the suggestions are erring on the side of safety, your comments are suggesting 1.5mm² would be acceptable (under certain conditions) this may lead to the less knowledgable putting themselves at risk.

 

[brightspark]

all ring circuits have that design flaw. on the plus side, if it was the earth, then there would still be an earth. this is why you should have an electrician check the wiring every 5-10 years

and that is the reason why all domestic circuits are covered through rcd protection . any leakage to earth even if the earth wire is broken will cause current imbalance and trip the circuit

 

[tigler]

and it would also appear as though the mods dont like there members being told to keep to what they know instead of giving out bad advice on something they obviously have no clue over...


just remember, get it wrong and it probably will be some innocent person who is killed instead of you.

No clue, really ?!
I admit that I don't have formal qualifications as an electrician, but I do have a degree in electronic engineering and substantial experience in all forms of electrical installation. So I think I'm quite capable of providing advice on simple domestic electrical installations.
You should be careful before making sweeping generalisations about people you have little or no knowledge of.
Advice is one thing, arrogance is another.

 

[Welderpaul]

Fellas, please can we keep this thread on topic. There is useful information in the thread that should hopefully help the OP and others.

Let's not bury it with daft arguments.

 

[steve_morris]

If you read the posts, all the suggestions are erring on the side of safety, your comments are suggesting 1.5mm² would be acceptable (under certain conditions) this may lead to the less knowledgable putting themselves at risk.

and under certain circumstances 2.5 may not be suitable either. it may well need to be 4mm or even 6mm to be safe.

point is, the OP should be asking a qualified electrician to install the circuit to the correct standard. the fact he is asking clearly shows he does not have enough knowledge to work out what should be used. and you lot saying 2.5 must be used without further information is not helping either

also, the work the OP is wanting done will most likely come under building regulations. wonder how he plans on achieving this

 

[steve_morris]

and that is the reason why all domestic circuits are covered through rcd protection . any leakage to earth even if the earth wire is broken will cause current imbalance and trip the circuit

thats not the reason why RCD's are used. though it is an additional benefit by it being there. if i really wanted, and taking things to the limit, i could wire a house without any RCD's and still comply with regulations

 

[brightspark]

thats not the reason why RCD's are used. though it is an additional benefit by it being there. if i really wanted, and taking things to the limit, i could wire a house without any RCD's and still comply with regulations

i sugest u go wire your own house without one then if thats what u want to do

 

[steve_morris]

i sugest u go wire your own house without one then if thats what u want to do

i said i could. i didnt say i would. and my house only has an RCD on the kitchen circuit. nothing else in the house is RCD protected.

 

[brightspark]

i said i could. i didnt say i would. and my house only has an RCD on the kitchen circuit. nothing else in the house is RCD protected.

justmake sure u dont use any outside equipment then unless its plugged in to your kitchen

 

[steve_morris]

justmake sure u dont use any outside equipment then unless its plugged in to your kitchen

living on the 8th floor doesnt give many occasions where i plug something in and take it outside....

 

[Hitch]

The relevant info and answers are there, so thread now locked before it gets out of hand.