board change to 17th

[zicopico]

Any advice as to wether you need to upgrade the whole fuse board to 17th edition if you need to install a new circuit to an old metal wylex board with the 2 pin push in type mcb.

 

[monkeyelectric]

Any advice as to wether you need to upgrade the whole fuse board to 17th edition if you need to install a new circuit to an old metal wylex board with the 2 pin push in type mcb.

Depends, what is the circuit for?

 

[steveyce]

1st and most important clarify Ze is sufficient also main and gas/water bond is upto date, remember you must not bond to lead...
If ciruit is not for equipment for outside use or in a special location and all cable run within zones you can use a MCB otherwise must be rcd protected, suggest PIR first, I made mistake long time ago and changed a db without a PIR then when it came to testing all circuits 1 circuit was shagged took me 6 hours to resolve. never again
as old wylex may not pick up faults an RCD will.

 

[zicopico]

the circuit is for a cooker, if i am to issue a certificate then surely any circuit would have to be rcd protected and the old board cannot take an rcbo.

 

[TPES]

If ciruit is not for equipment for outside use or in a special location and all cable run within zones you can use a MCB otherwise must be rcd protected

Ay...??

Even if its not in a special location it still needs RCD protection no matter where it is, unless you meet the requirements for not needed RCD (Armoured, surface mount or over 50mm deep ect..)

Just because its not in a special location and in zones that doesnt mean No RCD is needed..

 

[sparks1234]

1st and most important clarify Ze is sufficient also main and gas/water bond is upto date, remember you must not bond to lead...
If ciruit is not for equipment for outside use or in a special location and all cable run within zones you can use a MCB otherwise must be rcd protected, suggest PIR first, I made mistake long time ago and changed a db without a PIR then when it came to testing all circuits 1 circuit was shagged took me 6 hours to resolve. never again
as old wylex may not pick up faults an RCD will.

For a moment there I thought you said you could use MCB's anywhere except outside and a special location

Ay...??

Even if its not in a special location it still needs RCD protection no matter where it is, unless you meet the requirements for not needed RCD (Armoured, surface mount or over 50mm deep ect..)

Just because its not in a special location and in zones that doesnt mean No RCD is needed..

I had to read that a couple of times to make sure I wasn't making a **** of myself, glad someone else read it the same

 

[SirKit Breaker]

the circuit is for a cooker, if i am to issue a certificate then surely any circuit would have to be rcd protected and the old board cannot take an rcbo.

Use a shower consumer unit which has a RCD main switch usually 63a 30Ma, then fit the appropriate rated MCB, henly block the supply tails with the new tails for shower C/U, bung in your earth cable to an earth block if needed, this way you dont have to touch the old stuff and you can issue certs and it complies with blah blah blah.

Job done.

 

[DYCHE4230]

Use a shower consumer unit which has a RCD main switch usually 63a 30Ma, then fit the appropriate rated MCB, henly block the supply tails with the new tails for shower C/U, bung in your earth cable to an earth block if needed, this way you dont have to touch the old stuff and you can issue certs and it complies with blah blah blah.

Job done.

Just Done a job exactly the same as this....

 

[drywax]

Just a quicky noticed steveyce says you must not bond to lead my main water incoming is lead which goes up into the loft and then changes to copper the main street supply is now plastic, do I have to run a 10mm CPC to the loft were it switches to copper ?

and why not lead ?