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Load for a 5amp wall socket
On Monday, July 28, 2014 9:55:53 AM UTC+1, wrote:
On Monday, July 28, 2014 2:39:30 AM UTC+1, John Rumm wrote: On 27/07/2014 21:40, wrote: On Sunday, July 27, 2014 9:13:59 PM UTC+1, John Rumm wrote: On 26/07/2014 22:38, ss wrote: Secondly I may purchase another 10 watt floodlamp so would it be ok to run both from that 5 amp socket? A 5A socket is good for loads up to 5 x 230 = 1150W Its 240v, so 1.2kVA. One ought to get into the habit of using the nominal 230V for calculations IMHO. Britain's target voltage is 240v, not 230. So if you want the correct answers, it needs to be 240. We have an odd situations now where what is in actual fact 240v is described as 230v. 230v is not Britain's actual mains voltage, its a description of a standard within which our 240v supply falls (after we tweaked the outlying permitted limits). NT |
Load for a 5amp wall socket
In article ,
wrote: Britain's target voltage is 240v, not 230. So if you want the correct answers, it needs to be 240. We have an odd situations now where what is in actual fact 240v is described as 230v. It was 240v (+6%, -6%) until 31 December 1994. Since then it has been 230v (+10% - 6%). Permitted range: 216v -253v) -- From KT24 Using a RISC OS computer running v5.18 |
Load for a 5amp wall socket
In article ,
ss wrote: The round sockets were installed maybe late 90s in an 80s house by the previous owners, I was advised by an electrician that this was an old format of being able to switch on table lamps from a light switch rather than the wall socket. He's wrong. They are common where you want to plug in say a table lamp to a lighting circuit switched from elsewhere, but prevent that being overloaded by other devices - as might happen if you used a 13 amps one. Especially where the lighting circuit has a dimmer. -- *I'm already visualizing the duct tape over your mouth Dave Plowman London SW To e-mail, change noise into sound. |
Load for a 5amp wall socket
On Monday, July 28, 2014 1:58:04 PM UTC+1, charles wrote:
In article , wrote: Britain's target voltage is 240v, not 230. So if you want the correct answers, it needs to be 240. We have an odd situations now where what is in actual fact 240v is described as 230v. It was 240v (+6%, -6%) until 31 December 1994. Since then it has been 230v (+10% - 6%). Permitted range: 216v -253v) Not quite, measure some socket voltages to see what it actually is. NT |
Load for a 5amp wall socket
"The Natural Philosopher" wrote in message
... On 27/07/14 21:24, Andrew Gabriel wrote: In article , "Brian Gaff" writes: As I say, I'm just a bit worried about outdoor lighting being fed from a non fused outlet. It will *probably* be fused at 5A or 6A if connected to the lighting circuit, although it could be much higher. (I can't remember what the fusing limit is for a BS546 5A socket - a BS546 2A socket can be on a circuit fused at up to 10A, which is the common lighting circuit protection in commercial premises.) My 5A light plugs are on 16A lighting rings Are they **** - they are on a radial circuit:-) This the electrician assured me, is common practice, as the 16A suits the wiring. If you ALWAYS use a fused plug then that would be OK. -- Adam |
Load for a 5amp wall socket
In article ,
wrote: On Monday, July 28, 2014 1:58:04 PM UTC+1, charles wrote: In article , wrote: Britain's target voltage is 240v, not 230. So if you want the correct answers, it needs to be 240. We have an odd situations now where what is in actual fact 240v is described as 230v. It was 240v (+6%, -6%) until 31 December 1994. Since then it has been 230v (+10% - 6%). Permitted range: 216v -253v) Not quite, measure some socket voltages to see what it actually is. well yes, that the legal requirement. -- From KT24 Using a RISC OS computer running v5.18 |
Load for a 5amp wall socket
On Sun, 27 Jul 2014 21:13:59 +0100, John Rumm
wrote: On 26/07/2014 22:38, ss wrote: I have alongside some normal square pin 13 amp sockets some 5 amp round pin sockets, the 13 amp works as normal but the 5 amp is switched on from a light switch located elswhere. The round sockets were installed maybe late 90s in an 80s house by the previous owners, I was advised by an electrician that this was an old format of being able to switch on table lamps from a light switch rather than the wall socket. Its not often seen, but its a perfectly valid and sensible arrangement for those that life table lamps etc. I have no idea which circuit they are on ie socket ring or lighting ring. Could be on a lighting circuit or their own. If on the socket circuit then there ought to be additional fusing elsewhere. Now my question, I have recently purchased a 20 watt LED external floodlight that comes with a 13 amp square plug, now I need to increase the length of the cable and was looking to put a 5amp round plug on it at the same time so I can use from the unused round pin socket. Will this be safe to do so? With regard to Amps/wattage etc As a rough guide, divide the wattage by the supply voltage to get a typical current. So in that case 20 / 230 = ~87mA Secondly I may purchase another 10 watt floodlamp so would it be ok to run both from that 5 amp socket? A 5A socket is good for loads up to 5 x 230 = 1150W You may wish to comment on my switched socket in the dining room. It's a 2 gang 13A socket swiched by a 15A switch by the door. It's a spur off the downstairs ring protected by a 32A MCB. Done when the property was rewired around 1972 by the previous owner who were, incidentally American. That switch was, and still is the only light-switch for that room, there were no fixed light fittings. -- Graham. %Profound_observation% |
Load for a 5amp wall socket
"charles" wrote in message
... In article , wrote: On Monday, July 28, 2014 1:58:04 PM UTC+1, charles wrote: In article , wrote: Britain's target voltage is 240v, not 230. So if you want the correct answers, it needs to be 240. We have an odd situations now where what is in actual fact 240v is described as 230v. It was 240v (+6%, -6%) until 31 December 1994. Since then it has been 230v (+10% - 6%). Permitted range: 216v -253v) Not quite, measure some socket voltages to see what it actually is. well yes, that the legal requirement. Indeed, and if the voltage is outside that range then the suppliers have to rectify it. -- Adam |
Load for a 5amp wall socket
On Tuesday, July 29, 2014 7:31:23 PM UTC+1, ARW wrote:
"charles" wrote in message news:542eb1f68f In article , wrote: On Monday, July 28, 2014 1:58:04 PM UTC+1, charles wrote: In article , wrote: Britain's target voltage is 240v, not 230. So if you want the correct answers, it needs to be 240. We have an odd situations now where what is in actual fact 240v is described as 230v. It was 240v (+6%, -6%) until 31 December 1994. Since then it has been 230v (+10% - 6%). Permitted range: 216v -253v) Not quite, measure some socket voltages to see what it actually is. well yes, that the legal requirement. Indeed, and if the voltage is outside that range then the suppliers have to rectify it. Since the target voltage is 240, its in fact 240v +13 -24, not 230+- anything. 230 is the international standard, not the British voltage. NT |
Load for a 5amp wall socket
On 29/07/2014 20:08, wrote:
On Tuesday, July 29, 2014 7:31:23 PM UTC+1, ARW wrote: "charles" wrote in message news:542eb1f68f In article , wrote: On Monday, July 28, 2014 1:58:04 PM UTC+1, charles wrote: In article , wrote: Britain's target voltage is 240v, not 230. So if you want the correct answers, it needs to be 240. We have an odd situations now where what is in actual fact 240v is described as 230v. It was 240v (+6%, -6%) until 31 December 1994. Since then it has been 230v (+10% - 6%). Permitted range: 216v -253v) Not quite, measure some socket voltages to see what it actually is. well yes, that the legal requirement. Indeed, and if the voltage is outside that range then the suppliers have to rectify it. Since the target voltage is 240, its in fact 240v +13 -24, not 230+- anything. 230 is the international standard, not the British voltage. Its not the British voltage delivery target which as you say remains at 240V, but it *is* the British standard (i.e. 230v +10%/-6%). It also what we use as a basis for calculations. -- Cheers, John. /================================================== ===============\ | Internode Ltd - http://www.internode.co.uk | |-----------------------------------------------------------------| | John Rumm - john(at)internode(dot)co(dot)uk | \================================================= ================/ |
Load for a 5amp wall socket
On 29/07/2014 16:32, Graham. wrote:
On Sun, 27 Jul 2014 21:13:59 +0100, John Rumm wrote: On 26/07/2014 22:38, ss wrote: I have alongside some normal square pin 13 amp sockets some 5 amp round pin sockets, the 13 amp works as normal but the 5 amp is switched on from a light switch located elswhere. The round sockets were installed maybe late 90s in an 80s house by the previous owners, I was advised by an electrician that this was an old format of being able to switch on table lamps from a light switch rather than the wall socket. Its not often seen, but its a perfectly valid and sensible arrangement for those that life table lamps etc. I have no idea which circuit they are on ie socket ring or lighting ring. Could be on a lighting circuit or their own. If on the socket circuit then there ought to be additional fusing elsewhere. Now my question, I have recently purchased a 20 watt LED external floodlight that comes with a 13 amp square plug, now I need to increase the length of the cable and was looking to put a 5amp round plug on it at the same time so I can use from the unused round pin socket. Will this be safe to do so? With regard to Amps/wattage etc As a rough guide, divide the wattage by the supply voltage to get a typical current. So in that case 20 / 230 = ~87mA Secondly I may purchase another 10 watt floodlamp so would it be ok to run both from that 5 amp socket? A 5A socket is good for loads up to 5 x 230 = 1150W You may wish to comment on my switched socket in the dining room. It's a 2 gang 13A socket swiched by a 15A switch by the door. It's a spur off the downstairs ring protected by a 32A MCB. In effect, no different from any other unfused spur then... Done when the property was rewired around 1972 by the previous owner who were, incidentally American. That switch was, and still is the only light-switch for that room, there were no fixed light fittings. -- Cheers, John. /================================================== ===============\ | Internode Ltd - http://www.internode.co.uk | |-----------------------------------------------------------------| | John Rumm - john(at)internode(dot)co(dot)uk | \================================================= ================/ |
Load for a 5amp wall socket
On Wednesday, July 30, 2014 3:16:55 AM UTC+1, John Rumm wrote:
On 29/07/2014 20:08, wrote: On Tuesday, July 29, 2014 7:31:23 PM UTC+1, ARW wrote: "charles" wrote in message news:542eb1f68f In article , wrote: On Monday, July 28, 2014 1:58:04 PM UTC+1, charles wrote: In article , wrote: Britain's target voltage is 240v, not 230. So if you want the correct answers, it needs to be 240. We have an odd situations now where what is in actual fact 240v is described as 230v. It was 240v (+6%, -6%) until 31 December 1994. Since then it has been 230v (+10% - 6%). Permitted range: 216v -253v) Not quite, measure some socket voltages to see what it actually is. well yes, that the legal requirement. Indeed, and if the voltage is outside that range then the suppliers have to rectify it. Since the target voltage is 240, its in fact 240v +13 -24, not 230+- anything. 230 is the international standard, not the British voltage. Its not the British voltage delivery target which as you say remains at 240V, but it *is* the British standard (i.e. 230v +10%/-6%). It also what we use as a basis for calculations. Bit of a contradiction there. NT |
Load for a 5amp wall socket
wrote in message
... On Tuesday, July 29, 2014 7:31:23 PM UTC+1, ARW wrote: "charles" wrote in message news:542eb1f68f In article , wrote: On Monday, July 28, 2014 1:58:04 PM UTC+1, charles wrote: In article , wrote: Britain's target voltage is 240v, not 230. So if you want the correct answers, it needs to be 240. We have an odd situations now where what is in actual fact 240v is described as 230v. It was 240v (+6%, -6%) until 31 December 1994. Since then it has been 230v (+10% - 6%). Permitted range: 216v -253v) Not quite, measure some socket voltages to see what it actually is. well yes, that the legal requirement. Indeed, and if the voltage is outside that range then the suppliers have to rectify it. Since the target voltage is 240, its in fact 240v +13 -24, not 230+- anything. 230 is the international standard, not the British voltage. So why not call it 230v +23 -14? The voltages are anywhere between both ranges. -- Adam |
Load for a 5amp wall socket
On Wednesday, July 30, 2014 7:10:51 PM UTC+1, ARW wrote:
wrote in message ... On Tuesday, July 29, 2014 7:31:23 PM UTC+1, ARW wrote: "charles" wrote in message news:542eb1f68f In article , wrote: On Monday, July 28, 2014 1:58:04 PM UTC+1, charles wrote: In article , wrote: Britain's target voltage is 240v, not 230. So if you want the correct answers, it needs to be 240. We have an odd situations now where what is in actual fact 240v is described as 230v. It was 240v (+6%, -6%) until 31 December 1994. Since then it has been 230v (+10% - 6%). Permitted range: 216v -253v) Not quite, measure some socket voltages to see what it actually is. well yes, that the legal requirement. Indeed, and if the voltage is outside that range then the suppliers have to rectify it. Since the target voltage is 240, its in fact 240v +13 -24, not 230+- anything. 230 is the international standard, not the British voltage. So why not call it 230v +23 -14? The voltages are anywhere between both ranges. For a descriptor such as a +-b, a is the target figure, b the tolerance limits. So our current supply voltage is 240 +13 -24 by basic definition. The term 230v is a fudged description rather than a real engineering description. NT |
Load for a 5amp wall socket
wrote in message
... On Wednesday, July 30, 2014 7:10:51 PM UTC+1, ARW wrote: wrote in message ... On Tuesday, July 29, 2014 7:31:23 PM UTC+1, ARW wrote: "charles" wrote in message news:542eb1f68f In article , wrote: On Monday, July 28, 2014 1:58:04 PM UTC+1, charles wrote: In article , wrote: Britain's target voltage is 240v, not 230. So if you want the correct answers, it needs to be 240. We have an odd situations now where what is in actual fact 240v is described as 230v. It was 240v (+6%, -6%) until 31 December 1994. Since then it has been 230v (+10% - 6%). Permitted range: 216v -253v) Not quite, measure some socket voltages to see what it actually is. well yes, that the legal requirement. Indeed, and if the voltage is outside that range then the suppliers have to rectify it. Since the target voltage is 240, its in fact 240v +13 -24, not 230+- anything. 230 is the international standard, not the British voltage. So why not call it 230v +23 -14? The voltages are anywhere between both ranges. For a descriptor such as a +-b, a is the target figure, b the tolerance limits. So our current supply voltage is 240 +13 -24 by basic definition. The term 230v is a fudged description rather than a real engineering description. Why do you not go and shove the target voltage up your arse? - preferably without RCD protection. All UK calculations are done at 230V as that is the nominal voltage for the UK supply and for the appliances that use the supply. Apart from incandescent lamps and really old appliances it makes no difference. -- Adam |
Load for a 5amp wall socket
In article ,
ARW wrote: All UK calculations are done at 230V as that is the nominal voltage for the UK supply and for the appliances that use the supply. Apart from incandescent lamps and really old appliances it makes no difference. Bought some ex-BBC gear recently. Had a mains selector switch with (along with others) 230 and 240v. Had a Dymo label across the selector - 240v only. Later versions had no selector switch - you had to open it up and do a solder job to alter the tapping. ;-) -- *WHERE DO FOREST RANGERS GO TO "GET AWAY FROM IT ALL?" Dave Plowman London SW To e-mail, change noise into sound. |
Load for a 5amp wall socket
On Wednesday, July 30, 2014 8:02:41 PM UTC+1, ARW wrote:
wrote in message ... On Wednesday, July 30, 2014 7:10:51 PM UTC+1, ARW wrote: wrote in message ... On Tuesday, July 29, 2014 7:31:23 PM UTC+1, ARW wrote: "charles" wrote in message news:542eb1f68f In article , wrote: On Monday, July 28, 2014 1:58:04 PM UTC+1, charles wrote: In article , wrote: Britain's target voltage is 240v, not 230. So if you want the correct answers, it needs to be 240. We have an odd situations now where what is in actual fact 240v is described as 230v. It was 240v (+6%, -6%) until 31 December 1994. Since then it has been 230v (+10% - 6%). Permitted range: 216v -253v) Not quite, measure some socket voltages to see what it actually is. well yes, that the legal requirement. Indeed, and if the voltage is outside that range then the suppliers have to rectify it. Since the target voltage is 240, its in fact 240v +13 -24, not 230+- anything. 230 is the international standard, not the British voltage. So why not call it 230v +23 -14? The voltages are anywhere between both ranges. For a descriptor such as a +-b, a is the target figure, b the tolerance limits. So our current supply voltage is 240 +13 -24 by basic definition. The term 230v is a fudged description rather than a real engineering description. Why do you not go and shove the target voltage up your arse? - preferably without RCD protection. All UK calculations are done at 230V as that is the nominal voltage for the UK supply and for the appliances that use the supply. Apart from incandescent lamps and really old appliances it makes no difference. This is getting stupid |
Load for a 5amp wall socket
On 31/07/2014 08:49, wrote:
On Wednesday, July 30, 2014 8:02:41 PM UTC+1, ARW wrote: wrote in message ... On Wednesday, July 30, 2014 7:10:51 PM UTC+1, ARW wrote: wrote in message ... On Tuesday, July 29, 2014 7:31:23 PM UTC+1, ARW wrote: "charles" wrote in message news:542eb1f68f In article , wrote: On Monday, July 28, 2014 1:58:04 PM UTC+1, charles wrote: In article , wrote: Britain's target voltage is 240v, not 230. So if you want the correct answers, it needs to be 240. We have an odd situations now where what is in actual fact 240v is described as 230v. It was 240v (+6%, -6%) until 31 December 1994. Since then it has been 230v (+10% - 6%). Permitted range: 216v -253v) Not quite, measure some socket voltages to see what it actually is. well yes, that the legal requirement. Indeed, and if the voltage is outside that range then the suppliers have to rectify it. Since the target voltage is 240, its in fact 240v +13 -24, not 230+- anything. 230 is the international standard, not the British voltage. So why not call it 230v +23 -14? The voltages are anywhere between both ranges. For a descriptor such as a +-b, a is the target figure, b the tolerance limits. So our current supply voltage is 240 +13 -24 by basic definition. The term 230v is a fudged description rather than a real engineering description. Why do you not go and shove the target voltage up your arse? - preferably without RCD protection. All UK calculations are done at 230V as that is the nominal voltage for the UK supply and for the appliances that use the supply. Apart from incandescent lamps and really old appliances it makes no difference. This is getting stupid Well you started it ;-) (suggesting that my use of 230V in a calculation was inappropriate) -- Cheers, John. /================================================== ===============\ | Internode Ltd - http://www.internode.co.uk | |-----------------------------------------------------------------| | John Rumm - john(at)internode(dot)co(dot)uk | \================================================= ================/ |
Load for a 5amp wall socket
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Load for a 5amp wall socket
wrote in message
... On Wednesday, July 30, 2014 8:02:41 PM UTC+1, ARW wrote: Since the target voltage is 240, its in fact 240v +13 -24, not 230+- anything. 230 is the international standard, not the British voltage. So why not call it 230v +23 -14? The voltages are anywhere between both ranges. For a descriptor such as a +-b, a is the target figure, b the tolerance limits. So our current supply voltage is 240 +13 -24 by basic definition. The term 230v is a fudged description rather than a real engineering description. Why do you not go and shove the target voltage up your arse? - preferably without RCD protection. All UK calculations are done at 230V as that is the nominal voltage for the UK supply and for the appliances that use the supply. Apart from incandescent lamps and really old appliances it makes no difference. This is getting stupid If you want stupid then I can give you stupid-;) http://www.vphase.co.uk/ And will you ever learn to just chill out and relax? I have ****ing great big 250V at my house but only a 60A fuse. -- Adam |
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