|
Equipotential bonding
Read the Wiki, just need to double check.
Whole house re-plumb in plastic. So (apart from directly around the combi) there shouldn't be any metal in the hot and cold plumbing until you get to the taps. So in turn I assume that there is no bonding requirement for the H&C system as there seems no way that a faulty earth in an appliance (including bathroom lighting etc.) can cause current to flow through a person to earth via taps or water pipes. Majority of the CH will be in plastic - the only copper is likely to be the incoming gas main up to the combi, a short run of 15mm pipe at entry/exit to the combi, and probably short tails on the radiators going below floor to join the plastic main piping for flow and return. So earth at the CU should be bonded to the gas pipe as close to the entry into the property as possible (by the meter which is on the outside wall). Electrics around the combi should be bonded to the copper gas pipe. Oh, and the gas hob should be bonded to the gas pipe as well. Probably anything electrical in theoretical touching distance of a gas pipe (or the hob?) in the kitchen. Is there anything else that should be bonded? With all plastic the traditional problem of routes to earth being created by metal gas and water pipes seem to have gone away. Cheers Dave R -- Outlook Express within VMWare Player Running under W7 64bit |
Equipotential bonding
Owain wrote:
On Sep 1, 11:25 am, "David WE Roberts" wrote: So earth at the CU should be bonded to the gas pipe as close to the entry into the property as possible (by the meter which is on the outside wall). Yes. Electrics around the combi should be bonded to the copper gas pipe. No. The electrics are earthed by the circuit protective conductor to the main earth terminal, and the gas pipe is bonded to the main earth terminal. The boiler, if it requires earthing, will be earthed by the circuit protective conductor. Oh, and the gas hob should be bonded to the gas pipe as well. No. Probably anything electrical in theoretical touching distance of a gas pipe (or the hob?) in the kitchen. No. Is there anything else that should be bonded? No, according to 17th Edition. If your bathroom wiring is to 16th Edition (i.e. not all circuits are RCD) then you may need to equipotentially bond for the bathroom. And the regulations are different for council houses. For council houses it's compulsory to earth everything (including the individual hot and cold taps). :-) Umm..O.K. - for the combi and the hob I thought I was protecting against an earth fault in the wiring to the device (something as simple as the earth lead coming out of the socket), a break in the earth wiring somewhere in the circuit, or a faulty earth connection at the CU removing earth protection from the device, and then a subsequent fault rendering the device live but not tripping the breaker. So that when someone touched the device and the gas pipe, a new route to earth was created via the person, leading to a radical new hairstyle. -- Outlook Express within VMWare Player Running under W7 64bit |
Equipotential bonding
Owain wrote:
On Sep 1, 11:25 am, "David WE Roberts" wrote: So earth at the CU should be bonded to the gas pipe as close to the entry into the property as possible (by the meter which is on the outside wall). Yes. Electrics around the combi should be bonded to the copper gas pipe. No. The electrics are earthed by the circuit protective conductor to the main earth terminal, and the gas pipe is bonded to the main earth terminal. The boiler, if it requires earthing, will be earthed by the circuit protective conductor. Oh, and the gas hob should be bonded to the gas pipe as well. No. Probably anything electrical in theoretical touching distance of a gas pipe (or the hob?) in the kitchen. No. Is there anything else that should be bonded? No, according to 17th Edition. If your bathroom wiring is to 16th Edition (i.e. not all circuits are RCD) then you may need to equipotentially bond for the bathroom. And the regulations are different for council houses. For council houses it's compulsory to earth everything (including the individual hot and cold taps). :-) Would you mind if I copy and pasted your reply? That is what I was going to post. -- Adam |
Equipotential bonding
In article
..com, Owain scribeth thus On Sep 1, 11:25*am, "David WE Roberts" wrote: So earth at the CU should be bonded to the gas pipe as close to the entry into the property as possible (by the meter which is on the outside wall). Yes. Electrics around the combi should be bonded to the copper gas pipe. No. The electrics are earthed by the circuit protective conductor to the main earth terminal, and the gas pipe is bonded to the main earth terminal. The boiler, if it requires earthing, will be earthed by the circuit protective conductor. Oh, and the gas hob should be bonded to the gas pipe as well. No. Probably anything electrical in theoretical touching distance of a gas pipe (or the hob?) in the kitchen. No. Is there anything else that should be bonded? No, according to 17th Edition. If your bathroom wiring is to 16th Edition (i.e. not all circuits are RCD) then you may need to equipotentially bond for the bathroom. And the regulations are different for council houses. For council houses it's compulsory to earth everything (including the individual hot and cold taps). :-) Umm ... why?.. Owain -- Tony Sayer |
Equipotential bonding
tony sayer wrote:
In article .com, Owain scribeth thus On Sep 1, 11:25 am, "David WE Roberts" wrote: So earth at the CU should be bonded to the gas pipe as close to the entry into the property as possible (by the meter which is on the outside wall). Yes. Electrics around the combi should be bonded to the copper gas pipe. No. The electrics are earthed by the circuit protective conductor to the main earth terminal, and the gas pipe is bonded to the main earth terminal. The boiler, if it requires earthing, will be earthed by the circuit protective conductor. Oh, and the gas hob should be bonded to the gas pipe as well. No. Probably anything electrical in theoretical touching distance of a gas pipe (or the hob?) in the kitchen. No. Is there anything else that should be bonded? No, according to 17th Edition. If your bathroom wiring is to 16th Edition (i.e. not all circuits are RCD) then you may need to equipotentially bond for the bathroom. And the regulations are different for council houses. For council houses it's compulsory to earth everything (including the individual hot and cold taps). :-) Umm ... why?.. I can only speak for the 16th edition and Doncaster council. They completely ignored the 16th edition rules and bonded everything. As I am no no longer allowed to work for them I have no idea what they do with the 17th edition rules. Barnsley council seem to follow the 17th edition. -- Adam |
Equipotential bonding
On 01/09/2012 11:24, David WE Roberts wrote:
Read the Wiki, just need to double check. Whole house re-plumb in plastic. So (apart from directly around the combi) there shouldn't be any metal in the hot and cold plumbing until you get to the taps. So in turn I assume that there is no bonding requirement for the H&C system as there seems no way that a faulty earth in an appliance (including bathroom lighting etc.) can cause current to flow through a person to earth via taps or water pipes. Yup. The fundamental question is "can the thing introduce a potential into the equipotential zone", so cosmetic stubs of metal pipe in an all plastic system can't. Majority of the CH will be in plastic - the only copper is likely to be the incoming gas main up to the combi, a short run of 15mm pipe at entry/exit to the combi, and probably short tails on the radiators going below floor to join the plastic main piping for flow and return. The main EQ bonding should be in place - so gas main where it enters, and water main if it does so in metal. So earth at the CU should be bonded to the gas pipe as close to the entry into the property as possible (by the meter which is on the outside wall). Generally yes. Sometimes the connection is made on the consumers pipework in the meter box itself. On installs like mine where the meter feeds 14m of underground plastic pipe before it enters the building, it is done where it transitions to copper as it enters. Electrics around the combi should be bonded to the copper gas pipe. Is the combi in a bath or shower room? If not it sounds like there is not much requirement to bond the combi to anything. Oh, and the gas hob should be bonded to the gas pipe as well. Can't think why... Probably anything electrical in theoretical touching distance of a gas pipe (or the hob?) in the kitchen. EQ bonding is not generally required in a kitchen since its not an area of special risk (you are less likely to be wet and naked one generally assumes ;-) Is there anything else that should be bonded? Not that jumps out at me... With all plastic the traditional problem of routes to earth being created by metal gas and water pipes seem to have gone away. Indeed. -- Cheers, John. /================================================== ===============\ | Internode Ltd - http://www.internode.co.uk | |-----------------------------------------------------------------| | John Rumm - john(at)internode(dot)co(dot)uk | \================================================= ================/ |
Equipotential bonding
On 01/09/2012 12:19, tony sayer wrote:
In article .com, Owain scribeth thus And the regulations are different for council houses. For council houses it's compulsory to earth everything (including the individual hot and cold taps). :-) Umm ... why?.. Because council jobsworths with no actual understanding, get to make the "rules"... -- Cheers, John. /================================================== ===============\ | Internode Ltd - http://www.internode.co.uk | |-----------------------------------------------------------------| | John Rumm - john(at)internode(dot)co(dot)uk | \================================================= ================/ |
Equipotential bonding
John Rumm wrote:
On 01/09/2012 12:19, tony sayer wrote: In article .com, Owain scribeth thus And the regulations are different for council houses. For council houses it's compulsory to earth everything (including the individual hot and cold taps). :-) Umm ... why?.. Because council jobsworths with no actual understanding, get to make the "rules"... Name one:-) -- Adam |
Equipotential bonding
Owain wrote:
On Sep 1, 12:12 pm, "ARW" wrote: Would you mind if I copy and pasted your reply? Feel free :-) That is what I was going to post. Great minds, etc. Owain On Sep 1, 11:25 am, "David WE Roberts" wrote: So earth at the CU should be bonded to the gas pipe as close to the entry into the property as possible (by the meter which is on the outside wall). Yes. Electrics around the combi should be bonded to the copper gas pipe. No. The electrics are earthed by the circuit protective conductor to the main earth terminal, and the gas pipe is bonded to the main earth terminal. The boiler, if it requires earthing, will be earthed by the circuit protective conductor. Oh, and the gas hob should be bonded to the gas pipe as well. No. Probably anything electrical in theoretical touching distance of a gas pipe (or the hob?) in the kitchen. No. Is there anything else that should be bonded? No, according to 17th Edition. If your bathroom wiring is to 16th Edition (i.e. not all circuits are RCD) then you may need to equipotentially bond for the bathroom. And the regulations are different for council houses. For council houses it's compulsory to earth everything (including the individual hot and cold taps). :-) -- Adam |
Equipotential bonding
In article ,
John Rumm writes: On 01/09/2012 12:19, tony sayer wrote: In article .com, Owain scribeth thus And the regulations are different for council houses. For council houses it's compulsory to earth everything (including the individual hot and cold taps). :-) Umm ... why?.. Because council jobsworths with no actual understanding, get to make the "rules"... and, because they're always spending someone else's money (yours). -- Andrew Gabriel [email address is not usable -- followup in the newsgroup] |
Equipotential bonding
John Rumm wrote:
On 01/09/2012 11:24, David WE Roberts wrote: Read the Wiki, just need to double check. Whole house re-plumb in plastic. So (apart from directly around the combi) there shouldn't be any metal in the hot and cold plumbing until you get to the taps. So in turn I assume that there is no bonding requirement for the H&C system as there seems no way that a faulty earth in an appliance (including bathroom lighting etc.) can cause current to flow through a person to earth via taps or water pipes. Yup. The fundamental question is "can the thing introduce a potential into the equipotential zone", so cosmetic stubs of metal pipe in an all plastic system can't. Majority of the CH will be in plastic - the only copper is likely to be the incoming gas main up to the combi, a short run of 15mm pipe at entry/exit to the combi, and probably short tails on the radiators going below floor to join the plastic main piping for flow and return. The main EQ bonding should be in place - so gas main where it enters, and water main if it does so in metal. So earth at the CU should be bonded to the gas pipe as close to the entry into the property as possible (by the meter which is on the outside wall). Generally yes. Sometimes the connection is made on the consumers pipework in the meter box itself. On installs like mine where the meter feeds 14m of underground plastic pipe before it enters the building, it is done where it transitions to copper as it enters. Electrics around the combi should be bonded to the copper gas pipe. Is the combi in a bath or shower room? If not it sounds like there is not much requirement to bond the combi to anything. Oh, and the gas hob should be bonded to the gas pipe as well. Can't think why... Probably anything electrical in theoretical touching distance of a gas pipe (or the hob?) in the kitchen. EQ bonding is not generally required in a kitchen since its not an area of special risk (you are less likely to be wet and naked one generally assumes ;-) Is there anything else that should be bonded? Not that jumps out at me... With all plastic the traditional problem of routes to earth being created by metal gas and water pipes seem to have gone away. Indeed. Ah - of course - I was applying the rules/logic to the whole house when it is only applicable to the bathroom. Hmmm.....rushes naked and cold and wet from the bathroom to beat the combi boiler back into life..... ....and we used to bathe the kids in the kitchen sink when they were very little...... Perhaps not entirely logical but rules is rules :-) Thanks Dave R -- Outlook Express within VMWare Player Running under W7 64bit |
Equipotential bonding
On Sat, 01 Sep 2012 13:30:55 +0100, ARW wrote:
I can only speak for the 16th edition and Doncaster council. They completely ignored the 16th edition rules and bonded everything. As I am no no longer allowed to work for them The council leader's wife? Or someone else? -- Use the BIG mirror service in the UK: http://www.mirrorservice.org *lightning protection* - a w_tom conductor |
Equipotential bonding
On 01/09/2012 14:09, ARW wrote:
John Rumm wrote: On 01/09/2012 12:19, tony sayer wrote: In article .com, Owain scribeth thus And the regulations are different for council houses. For council houses it's compulsory to earth everything (including the individual hot and cold taps). :-) Umm ... why?.. Because council jobsworths with no actual understanding, get to make the "rules"... Name one:-) A jobsworth or a rule? The latter would be easy - EQ bonding metal sinks and baths, or insisting that supplementary bonding must be visible in the room etc. As for jobsworths, I try to keep away from them! -- Cheers, John. /================================================== ===============\ | Internode Ltd - http://www.internode.co.uk | |-----------------------------------------------------------------| | John Rumm - john(at)internode(dot)co(dot)uk | \================================================= ================/ |
Equipotential bonding
On 01/09/2012 18:23, John Rumm wrote:
On 01/09/2012 14:09, ARW wrote: John Rumm wrote: On 01/09/2012 12:19, tony sayer wrote: In article .com, Owain scribeth thus And the regulations are different for council houses. For council houses it's compulsory to earth everything (including the individual hot and cold taps). :-) Umm ... why?.. Because council jobsworths with no actual understanding, get to make the "rules"... Name one:-) A jobsworth or a rule? The latter would be easy - EQ bonding metal sinks and baths, or insisting that supplementary bonding must be visible in the room etc. As for jobsworths, I try to keep away from them! Although with hindsight - could you be thinking of a certain Mr. B? ;-) -- Cheers, John. /================================================== ===============\ | Internode Ltd - http://www.internode.co.uk | |-----------------------------------------------------------------| | John Rumm - john(at)internode(dot)co(dot)uk | \================================================= ================/ |
Equipotential bonding
John Rumm wrote:
On 01/09/2012 18:23, John Rumm wrote: On 01/09/2012 14:09, ARW wrote: John Rumm wrote: On 01/09/2012 12:19, tony sayer wrote: In article .com, Owain scribeth thus And the regulations are different for council houses. For council houses it's compulsory to earth everything (including the individual hot and cold taps). :-) Umm ... why?.. Because council jobsworths with no actual understanding, get to make the "rules"... Name one:-) A jobsworth or a rule? The latter would be easy - EQ bonding metal sinks and baths, or insisting that supplementary bonding must be visible in the room etc. As for jobsworths, I try to keep away from them! Although with hindsight - could you be thinking of a certain Mr. B? ;-) :-):-):-) -- Adam |
Equipotential bonding
In article , John
Rumm scribeth thus On 01/09/2012 12:19, tony sayer wrote: In article .com, Owain scribeth thus And the regulations are different for council houses. For council houses it's compulsory to earth everything (including the individual hot and cold taps). :-) Umm ... why?.. Because council jobsworths with no actual understanding, get to make the "rules"... Understooded prefeckly .... -- Tony Sayer |
Equipotential bonding
On Saturday, 1 September 2012 18:23:17 UTC+1, John Rumm wrote:
On 01/09/2012 14:09, ARW wrote: John Rumm wrote: On 01/09/2012 12:19, tony sayer wrote: In article .com, Owain scribeth thus And the regulations are different for council houses. For council houses it's compulsory to earth everything (including the individual hot and cold taps). :-) Umm ... why?.. Because council jobsworths with no actual understanding, get to make the "rules"... Name one:-) A jobsworth or a rule? The latter would be easy - EQ bonding metal sinks and baths, or insisting that supplementary bonding must be visible in the room etc. Regarding supplementary bonding being visible: does this mean that the tagged bonding clamps you get for metal pipes etc have to be in plain sight according to the regs? I ask because I had this conversation with someone about equipotential bonding in a bathroom and I offered the opinion that this was indeed what the regs said. He said he didn't care what the regs said, it made the finish look sh!t and he wasn't having it. The bonding tags were duly applied below the floorboards, out of sight...and not, as far as I knew, to the regs. FWIW I think he had the right attitude ;0) As for jobsworths, I try to keep away from them! -- Cheers, John. /================================================== ===============\ | Internode Ltd - | |-----------------------------------------------------------------| | John Rumm - john(at)internode(dot)co(dot)uk | \================================================= ================/ |
Equipotential bonding
|
Equipotential bonding
"John Rumm" wrote in message o.uk... On 02/09/2012 03:08, wrote: On Saturday, 1 September 2012 18:23:17 UTC+1, John Rumm wrote: insisting that supplementary bonding must be visible in the room etc. Regarding supplementary bonding being visible: does this mean that the tagged bonding clamps you get for metal pipes etc have to be in plain sight according to the regs? I ask because I had this conversation with someone about equipotential bonding in a bathroom and I offered the opinion that this was indeed what the regs said. He said he didn't care what the regs said, it made the finish look sh!t and he wasn't having it. The bonding tags were duly applied below the floorboards, out of sight...and not, as far as I knew, to the regs. FWIW I think he had the right attitude ;0) There is no requirement for the bonding clamps to be even in the room. They need to be *close* to the point the potential of which you are trying to limit for obvious reasons, but can be in adjacent rooms, in cupboards, under the floor, in the loft space etc. Its the function that is important. The "do not remove" tags should be visible on/near each connection though. If making the connections less visible, then its worth keeping detailed notes, otherwise there is a danger that someone will assume they are simply not there at a future inspection. The alternative to make life simpler is just to follow the 17th edition requirements (all circuits that enter the zone are 30mA RCD protected, and the main EQ bonding is in place), then you don't need supplementary bonding at all. Just to check something - if I am going for RCBOs as discussed in another thread, are these O.K. for bathroom areas? IIRC RCBOs are RCDs and a bit more? Cheers Dave R -- No plan survives contact with the enemy. [Not even bunny] Helmuth von Moltke the Elder (\__/) (='.'=) (")_(") |
Equipotential bonding
The latter would be easy - EQ bonding metal sinks and baths, or
insisting that supplementary bonding must be visible in the room etc. Regarding supplementary bonding being visible: does this mean that the tagged bonding clamps you get for metal pipes etc have to be in plain sight according to the regs? I ask because I had this conversation with someone about equipotential bonding in a bathroom and I offered the opinion that this was indeed what the regs said. He said he didn't care what the regs said, it made the finish look sh!t and he wasn't having it. The bonding tags were duly applied below the floorboards, out of sight...and not, as far as I knew, to the regs. FWIW I think he had the right attitude ;0) Of course any future inspections would assume there was no bonding. Had this very thing here under the floorboard and now the carefully laid covering but there are a few dated photos, close up ones too so it can be seen. Would that be good enough for an inspector?.. -- Tony Sayer |
Equipotential bonding
On 02/09/2012 13:02, David WE Roberts wrote:
"John Rumm" wrote in message o.uk... On 02/09/2012 03:08, wrote: On Saturday, 1 September 2012 18:23:17 UTC+1, John Rumm wrote: insisting that supplementary bonding must be visible in the room etc. Regarding supplementary bonding being visible: does this mean that the tagged bonding clamps you get for metal pipes etc have to be in plain sight according to the regs? I ask because I had this conversation with someone about equipotential bonding in a bathroom and I offered the opinion that this was indeed what the regs said. He said he didn't care what the regs said, it made the finish look sh!t and he wasn't having it. The bonding tags were duly applied below the floorboards, out of sight...and not, as far as I knew, to the regs. FWIW I think he had the right attitude ;0) There is no requirement for the bonding clamps to be even in the room. They need to be *close* to the point the potential of which you are trying to limit for obvious reasons, but can be in adjacent rooms, in cupboards, under the floor, in the loft space etc. Its the function that is important. The "do not remove" tags should be visible on/near each connection though. If making the connections less visible, then its worth keeping detailed notes, otherwise there is a danger that someone will assume they are simply not there at a future inspection. The alternative to make life simpler is just to follow the 17th edition requirements (all circuits that enter the zone are 30mA RCD protected, and the main EQ bonding is in place), then you don't need supplementary bonding at all. Just to check something - if I am going for RCBOs as discussed in another thread, are these O.K. for bathroom areas? IIRC RCBOs are RCDs and a bit more? Yup that's fine. A RCBO is just a MCB with built in RCD. So if you have a all RCBO CU you have as many RCDs as you have circuits. As long as those protecting all the circuits that are used in the bathroom are 30mA trip ones, then you are fine (with the required main EQ bonding in place) -- Cheers, John. /================================================== ===============\ | Internode Ltd - http://www.internode.co.uk | |-----------------------------------------------------------------| | John Rumm - john(at)internode(dot)co(dot)uk | \================================================= ================/ |
Equipotential bonding
David WE Roberts wrote:
Just to check something - if I am going for RCBOs as discussed in another thread, are these O.K. for bathroom areas? IIRC RCBOs are RCDs and a bit more? What circuits are you planning on the rewire? And it is nice to see someone using RCBOs and not just a dual RCD CU. -- Adam |
Equipotential bonding
In article , ARW
o.uk scribeth thus David WE Roberts wrote: Just to check something - if I am going for RCBOs as discussed in another thread, are these O.K. for bathroom areas? IIRC RCBOs are RCDs and a bit more? What circuits are you planning on the rewire? And it is nice to see someone using RCBOs and not just a dual RCD CU. What's the typical price of RCBO's now of a decent make?.. -- Tony Sayer |
Equipotential bonding
tony sayer wrote:
In article , ARW o.uk scribeth thus David WE Roberts wrote: Just to check something - if I am going for RCBOs as discussed in another thread, are these O.K. for bathroom areas? IIRC RCBOs are RCDs and a bit more? What circuits are you planning on the rewire? And it is nice to see someone using RCBOs and not just a dual RCD CU. What's the typical price of RCBO's now of a decent make?.. £25 for Hager. Who I consider to be the market leader in quality. Possibly a little more if you do not have an account at an electrical wholesalers. MK are cheaper at most places but MK is no longer what it used to be. -- Adam |
Equipotential bonding
On Sep 3, 9:36*pm, "ARW" wrote:
MK is no longer what it used to be. Is that MK, or MK made-outside-the-UK MK? I've heard both. |
Equipotential bonding
"ARW" wrote in message ... David WE Roberts wrote: Just to check something - if I am going for RCBOs as discussed in another thread, are these O.K. for bathroom areas? IIRC RCBOs are RCDs and a bit more? What circuits are you planning on the rewire? And it is nice to see someone using RCBOs and not just a dual RCD CU. Over 50% of the house is being rewired and I am having a new CU. So nearly everything will go on RCBOs. Up to 12 circuits at the moment so this is likely to be a bit expensive, but worth it in the long run. As discussed in another thread, the main reason for RCBOs is to avoid taking out the whole CU (or half for a split CU) with an earth/neutral fault when working on an individual socket or light fitting. I am trying to plan ahead and make the next 10-20 years as easy as possible. Fridge/freezer on own circuit. CH on own circuit. Planning to move the existing CU down to the shed but won't be using most of it. Cheers Dave R. -- No plan survives contact with the enemy. [Not even bunny] Helmuth von Moltke the Elder (\__/) (='.'=) (")_(") |
Equipotential bonding
On 2012-09-01, John Rumm wrote:
On 01/09/2012 11:24, David WE Roberts wrote: Probably anything electrical in theoretical touching distance of a gas pipe (or the hob?) in the kitchen. EQ bonding is not generally required in a kitchen since its not an area of special risk (you are less likely to be wet and naked one generally assumes ;-) So the regulations need to be interpreted differently in a naturist colony? ;-) |
Equipotential bonding
On 2012-09-03, ARW wrote:
David WE Roberts wrote: Just to check something - if I am going for RCBOs as discussed in another thread, are these O.K. for bathroom areas? IIRC RCBOs are RCDs and a bit more? What circuits are you planning on the rewire? And it is nice to see someone using RCBOs and not just a dual RCD CU. Sure, but most builders (especially for new houses) just use a dual RCD CU because it's the cheapest way to comply, isn't it? |
Equipotential bonding
Adam Funk wrote:
On 2012-09-03, ARW wrote: David WE Roberts wrote: Just to check something - if I am going for RCBOs as discussed in another thread, are these O.K. for bathroom areas? IIRC RCBOs are RCDs and a bit more? What circuits are you planning on the rewire? And it is nice to see someone using RCBOs and not just a dual RCD CU. Sure, but most builders (especially for new houses) just use a dual RCD CU because it's the cheapest way to comply, isn't it? Just fitted this in a new build house today:-) http://www.thlsolutions.co.uk/store/...h-edition.html Plus the phase conversion kit. It's only a single phase supply to the house. As a general rule I aways give the smokes their own independant RCBO. -- Adam |
Equipotential bonding
Andy Dingley wrote:
On Sep 3, 9:36 pm, "ARW" wrote: MK is no longer what it used to be. Is that MK, or MK made-outside-the-UK MK? I've heard both. I have no idea where the stuff in the wholesalers is made. -- Adam |
Equipotential bonding
On 2012-09-04 17:30:59 +0000, ARW said:
Adam Funk wrote: On 2012-09-03, ARW wrote: David WE Roberts wrote: Just to check something - if I am going for RCBOs as discussed in another thread, are these O.K. for bathroom areas? IIRC RCBOs are RCDs and a bit more? What circuits are you planning on the rewire? And it is nice to see someone using RCBOs and not just a dual RCD CU. Sure, but most builders (especially for new houses) just use a dual RCD CU because it's the cheapest way to comply, isn't it? Just fitted this in a new build house today:-) http://www.thlsolutions.co.uk/store/...h-edition.html Plus the phase conversion kit. It's only a single phase supply to the house. As a general rule I aways give the smokes their own independant RCBO. Yes, I fitted one of these (actually a slightly larger version) a while ago along with the single phase conversion kit, and have RCBOs for each circuit. I love the space inside for wiring up compared to a normal CU. |
Equipotential bonding
Piers Finlayson wrote:
On 2012-09-04 17:30:59 +0000, ARW said: Adam Funk wrote: On 2012-09-03, ARW wrote: David WE Roberts wrote: Just to check something - if I am going for RCBOs as discussed in another thread, are these O.K. for bathroom areas? IIRC RCBOs are RCDs and a bit more? What circuits are you planning on the rewire? And it is nice to see someone using RCBOs and not just a dual RCD CU. Sure, but most builders (especially for new houses) just use a dual RCD CU because it's the cheapest way to comply, isn't it? Just fitted this in a new build house today:-) http://www.thlsolutions.co.uk/store/...h-edition.html Plus the phase conversion kit. It's only a single phase supply to the house. As a general rule I aways give the smokes their own independant RCBO. Yes, I fitted one of these (actually a slightly larger version) a while ago along with the single phase conversion kit, and have RCBOs for each circuit. I love the space inside for wiring up compared to a normal CU. This one is not all RCBOs. The electric gate, door entry, alarm, boiler and CH are just using MCBs. What is REALLY needed is a bus bar that supplies RCBOs with both the live and neutral connections so that you could just slot the RCBO into place and then just connect the circuit wires to the RCBO. -- Adam |
Equipotential bonding
In article , Piers Finlayson
scribeth thus On 2012-09-04 17:30:59 +0000, ARW said: Adam Funk wrote: On 2012-09-03, ARW wrote: David WE Roberts wrote: Just to check something - if I am going for RCBOs as discussed in another thread, are these O.K. for bathroom areas? IIRC RCBOs are RCDs and a bit more? What circuits are you planning on the rewire? And it is nice to see someone using RCBOs and not just a dual RCD CU. Sure, but most builders (especially for new houses) just use a dual RCD CU because it's the cheapest way to comply, isn't it? Just fitted this in a new build house today:-) http://www.thlsolutions.co.uk/store/...3-12-Way-125A- TP%26N-Distribution-Board-17th-edition.html Plus the phase conversion kit. It's only a single phase supply to the house. As a general rule I aways give the smokes their own independant RCBO. Yes, I fitted one of these (actually a slightly larger version) a while ago along with the single phase conversion kit, and have RCBOs for each circuit. I love the space inside for wiring up compared to a normal CU. Just a point. Is that a good thing in that say the RCBO on the smoke detect system fails how would anyone know just that circuits out?.. If its tagged across the ring main or lights then its quite obvious that the circuit has gone down... Y/N ?.. -- Tony Sayer |
Equipotential bonding
tony sayer wrote:
In article , Piers Finlayson scribeth thus On 2012-09-04 17:30:59 +0000, ARW said: Adam Funk wrote: On 2012-09-03, ARW wrote: David WE Roberts wrote: Just to check something - if I am going for RCBOs as discussed in another thread, are these O.K. for bathroom areas? IIRC RCBOs are RCDs and a bit more? What circuits are you planning on the rewire? And it is nice to see someone using RCBOs and not just a dual RCD CU. Sure, but most builders (especially for new houses) just use a dual RCD CU because it's the cheapest way to comply, isn't it? Just fitted this in a new build house today:-) http://www.thlsolutions.co.uk/store/...3-12-Way-125A- TP%26N-Distribution-Board-17th-edition.html Plus the phase conversion kit. It's only a single phase supply to the house. As a general rule I aways give the smokes their own independant RCBO. Yes, I fitted one of these (actually a slightly larger version) a while ago along with the single phase conversion kit, and have RCBOs for each circuit. I love the space inside for wiring up compared to a normal CU. Just a point. Is that a good thing in that say the RCBO on the smoke detect system fails how would anyone know just that circuits out?.. If its tagged across the ring main or lights then its quite obvious that the circuit has gone down... Y/N ?.. I have no problem putting the smokes on the RBCO with the upstairs lights. And I have long argued that for **** hole rented properties that the smoke detectors should be on the same circuit as the TV. Battery backed up smoke detectors are pretty good on ANY circuit IMHO opinion. -- Adam |
| All times are GMT +1. The time now is 11:21 AM. |
Powered by vBulletin® Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright ©2004 - 2014 DIYbanter