Discuss satisfactory unsatisfactory in the Periodic Inspection Reporting & Certification area at ElectriciansForums.net
Thanks for your quick response, Its greatly appreciatedYou'd just mark it as FI and note why. However you'd also use your engineering judgment based on the condition of everything else as to whether you think it's likely to be an issue or not and issue satisfactory or unsatisfactory on that basis
Hi Dave,What exactly do you mean by can't find a spur?
Do you mean it's fed from a ring circuit but you can't find a switched fused connection unit or other means of fusing down and isolation for it?
If the UFH is connected directly to a ring circuit without a fuse of some kind then that's a C2 observation.
If its on a suitably sized dedicated circuit without an means of isolation other than the MCB then it is unlikely to warrant any code.
So basically you've just got a mystery cct where you know the start and what it's labelled for but can't locate the other end? Classic.Hi Dave,
Thanks for your reply its on a dedicated circuit appropriately rated without a fused spur or at leaset unable to find one!
Hi Dave,
Thanks for your reply its on a dedicated circuit appropriately rated without a fused spur or at leaset unable to find one!
I saw that and just thought it was poorly worded?Why would a dedicated circuit need a fused connection unit?
Normally I would expect to see some sort of fused spur or at least if myself or the majority of people were to install such a circuit, then a fused spur would be put in - no!! or at least a point of connection to the UFH! Which i am unable to find.Why would a dedicated circuit need a fused connection unit?
Dedicated as in its not coming off a ring circuit for example but direct from and noted at the DB!I saw that and just thought it was poorly worded?
Wouldn't you want a local point of isolation, rather than using the MCB/RCBO?Why would a dedicated circuit need a fused connection unit?
Yes I would agree. But a 20 amp DP switch may be more appropriate for UFH, depending on the wattage of the heating mats.Wouldn't you want a local point of isolation, rather than using the MCB/RCBO?
Wouldn't you want a local point of isolation, rather than using the MCB/RCBO?
To be honest I just want an end to get a reading off! I said fused spur as that what I would normally see but some type of isolator or end of circuit to be able to get an r1 + r2 which i am currently unable to find.Yes, a point of isolation would be very sensible, my question is more about why they would want a local fuse rather than just an isolator.
Normally I would expect to see some sort of fused spur or at least if myself or the majority of people were to install such a circuit, then a fused spur would be put in - no!! or at least a point of connection to the UFH! Which i am unable to find.
To be honest I just want an end to get a reading off! I said fused spur as that what I would normally see but some type of isolator or end of circuit to be able to get an r1 + r2 which i am currently unable to find.
Thanks
Smarky
"FI" automatically makes the Report outcome "Unsatisfactory".You'd just mark it as FI and note why. However you'd also use your engineering judgment based on the condition of everything else as to whether you think it's likely to be an issue or not and issue satisfactory or unsatisfactory on that basis
Since when?! On that logic, any LIM is also an unsatisfactory"FI" automatically makes the Report outcome "Unsatisfactory".
BS7671 page 521 item 9Since when?! On that logic, any LIM is also an unsatisfactory
Since when?! On that logic, any LIM is also an unsatisfactory
Since when?! On that logic, any LIM is also an unsatisfactory
What’s the difference between not conducting an R1R2 on a circuit you can’t find and not conducting one that you can’t deenergise? None whatsoever - both could potentially fail to be safe.Surely limitation is something you haven't checked, but have no reason to suspect any issues, whereas FI indicates a potential issue which requires further investigation?
As such I fail to follow your logic.
I see where you're coming from, but there is a difference. The unknown circuit could have any number of C1s or C2s on it, you just don't know. The circuit that can't be switched off can be visually inspected, and live tests such as polarity, Zs, R2 etc can indicate the health of the circuit and whether disconnection times are met.What’s the difference between not conducting an R1R2 on a circuit you can’t find and not conducting one that you can’t deenergise? None whatsoever - both could potentially fail to be safe.
"FI" automatically makes the Report outcome "Unsatisfactory".
BS7671 page 521 item 9
OK - every day’s a school day and having just stuck my head into the books over a coffee for a refresh, I got it wrong-ish.Since we changed from PIR's and the old coding system to EICRs it has always been that C1, C2 and FI are an automatic unsatisfactory result.
What’s the difference between not conducting an R1R2 on a circuit you can’t find and not conducting one that you can’t deenergise? None whatsoever - both could potentially fail to be safe.
Yet if you can’t find the end of one circuit in an otherwise 100% spanking install, simply because the heating engineer (a theoretically skilled and competent trade) has had to hide it somewhere in an un-obvious location then you have to return a failure and an instruction to the client that they’ll have to dismantle the place brick by brick until you’ve found it??!
BPG4 (page 16) says that “Presence of circuits that cannot be readily identified or traced” warrants an FI code. And both BPG and 7671 state that an FI = an unsatisfactory result. So that sadly is that as far as the OP here.
OK - every day’s a school day and having just stuck my head into the books over a coffee for a refresh, I got it wrong-ish.
BPG4 (page 16) says that “Presence of circuits that cannot be readily identified or traced” warrants an FI code. And both BPG and 7671 state that an FI = an unsatisfactory result. So that sadly is that as far as the OP here.
Where I come back to my ‘ish’ is that it’s the job of an inspector to determine whether or not something is safe for continued use. We have all seen test sheets (mostly on here) with circuit after circuit full of LIM - making them largely meaningless but passable. Yet if you can’t find the end of one circuit in an otherwise 100% spanking install, simply because the heating engineer (a theoretically skilled and competent trade) has had to hide it somewhere in an un-obvious location then you have to return a failure and an instruction to the client that they’ll have to dismantle the place brick by brick until you’ve found it??!
You could, but that's getting into the territory of remedial action as opposed to reporting. And you would want to be certain that it's not something critical.If I had a circuit that I really couldn't identify, even after enquiring about things like sewage or water pumps, then I would disconnect it and notify the occupier, rather than marking it FI in an otherwise satisfactory installation.
Not really. You will be disconnecting to test, so just leave disconnected. There's a perfect example in another current thread, where a (badly) terminated, but still live wire was discovered behind plasterboard in a bathroom.You could, but that's getting into the territory of remedial action as opposed to reporting.
I don't generally disconnect anything to test it - an exception perhaps being the humble ring final circuit for ring continuity.Not really. You will be disconnecting to test, so just leave disconnected. There's a perfect example in another current thread, where a (badly) terminated, but still live wire was discovered behind plasterboard in a bathroom.
As for "something critical", I mentioned sewage and water supply pumps, and always report to the property occupier what I've done, with instructions to contact me immediately if something that was working is now found not to be.
One example I remember from some time ago, was that the stairwell lights in the neighbouring property had ceased working after my visit.
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