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Minor works certificate and testing questions

Hi, I saw written somewhere that when carrying out minor work, you take responsibility for the entire circuit not just the new work? 

Are the tests performed on the whole circuit and all points? Say you install an addition socket on a circuit, do you then continuity test all 10 other sockets, check for missing grommets, shoddy work, bad connections, missing sleeving, and repair all that? 

The minor work certificate doesn't come with the schedule of inspections so I'm guessing it isn't used on minor works and it's more of a ‘quick glance - everything looks OK’ inspection? 

Also, the bonding and RCD requirements - if you were installing the additional socket, and they weren't there, you would have to install all main bonding and fit an RCD / RCBO? And if the main earth was less than 16mm (on a domestic) you would have to install that? 

Would you also have to investigate the if the circuits been installed less than 50mm depth and in zones and so on to see if an RCD was required in that respect?

Ta!

Parents
  • 641.5 For an addition or alteration to an existing installation, it shall be verified that the addition or alteration complies with the Regulations and does not impair the safety of the existing installation.

    644.1.2 For an addition and/or alteration to an existing installation, any defect or omission that will affect the safety of the addition or alteration that is revealed during inspection and testing shall be corrected before the Certificate is issued.

    So, when modifying, (i) you shouldn't make the existing stuff worse. This implies you do suitable T&I on any existing parts that may have been affected by the modification. (ii) the new bits should comply with the current regs: so when adding a socket, the new socket must be RCD protected, but you're under no obligation to RCD protect the old sockets on that circuit. (Of course it may be easiest to add RCD protection at the origin of the circuit anyway.)

Reply
  • 641.5 For an addition or alteration to an existing installation, it shall be verified that the addition or alteration complies with the Regulations and does not impair the safety of the existing installation.

    644.1.2 For an addition and/or alteration to an existing installation, any defect or omission that will affect the safety of the addition or alteration that is revealed during inspection and testing shall be corrected before the Certificate is issued.

    So, when modifying, (i) you shouldn't make the existing stuff worse. This implies you do suitable T&I on any existing parts that may have been affected by the modification. (ii) the new bits should comply with the current regs: so when adding a socket, the new socket must be RCD protected, but you're under no obligation to RCD protect the old sockets on that circuit. (Of course it may be easiest to add RCD protection at the origin of the circuit anyway.)

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