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| Thread ID: 71407 | 2006-08-05 00:47:00 | Sandwich toaster wiring | sam m (517) | PC World Chat |
| Post ID | Timestamp | Content | User | ||
| 476175 | 2006-08-05 11:51:00 | Seen many earthed double insulated appliances.. K |
Kelem (10339) | ||
| 476176 | 2006-08-06 02:14:00 | " . . . between the toaster and say, the neutral bar", kelem? I'd feel fine . The person doing that would look a bit odd reaching between the toaster and the switchboard . That toaster element has a solid (cast on) earth terminal , and the earth wires looked fine . It actually failed open circuit, rather than by shorting to earth . |
Graham L (2) | ||
| 476177 | 2006-08-06 02:44:00 | Well the toasted sandwhiches tasted fine :) We actually have 2 toasted sandwhich makers (xmas pressie came to the rescue) so it was not a matter of penny pinching. I was going to throw it out anyway but the curiosity got the better of me. I am going to take it to family member who has qualification in the electrical industry to check it out and I will probably get some sleeving to protect wiring a little better than what it came out with. I was curious as to the cause of the wire coming off due to heat - I would have thought the manufacturers would have designed it a little better. |
sam m (517) | ||
| 476178 | 2006-08-06 03:59:00 | "It actually failed open circuit, rather than by shorting to earth" Best case scenario it faults to earth IMHO |
Kelem (10339) | ||
| 476179 | 2006-08-06 04:08:00 | Why? That would blow a fuse or pop a breaker . It just stopped working . No danger or other nuisance . Best case scenario is that it never fails . If the crimped on QC connector failed, I'd guess that it was never fitted correctly to the element lug, or wasn't tight enough . Some arcing would have cooked it rather than the toast, and it finally burned away . With the replacement, the toaster will probably go for ever . |
Graham L (2) | ||
| 476180 | 2006-08-06 04:34:00 | "Why?" If either the supply or return conductor are open circuit somewhere inside or just outside the appliance (and not touching an earth) there is a possiblity of a person getting a shock. Not all houses are on RCD's, They wont help if someone gets between the red and black or Blue & Brown or white & black or white & white. K |
Kelem (10339) | ||
| 476181 | 2006-08-06 04:50:00 | . . . If either the supply or return conductor are open circuit somewhere inside or just outside the appliance (and not touching an earth) there is a possiblity of a person getting a shock . If there isn't an earth connection . "The sky is falling" is not a good philosophy . This particular appliance failed internally . It appears to have a properly connected earth conductor . A short of phase to earth would have tested that . Since it didn't fail like that, it didn't test the earth conductor . It just stopped working . The earth conductor kept the case at earth potential . Noone got a shock . |
Graham L (2) | ||
| 476182 | 2006-08-06 05:02:00 | Graham L, I think you do not understand what i am getting at - sorry my bad! Sam, IF you want to know more about appliance testing do a google nz search for NZECP 50 |
Kelem (10339) | ||
| 476183 | 2006-08-06 18:32:00 | If there isn't an earth connection . "The sky is falling" is not a good philosophy . This particular appliance failed internally . It appears to have a properly connected earth conductor . A short of phase to earth would have tested that . Since it didn't fail like that, it didn't test the earth conductor . It just stopped working . The earth conductor kept the case at earth potential . Noone got a shock . Graham: I agree with you, totally! Many people do not understand the difference between an OPEN- and a SHORT-circuit! They assume that any device that fails is somehow shorted out and unsafe . OPEN means that there is NO CONNECTION . . and therefor is probably very safe, although non-operative . SHORTED-OUT means that somewhere there is a connection that was not designed to happen . . . the electricity took a SHORT-cut to ground! This may be from a wire falling onto a grounded portion of a device or across another wire or bare spot on a hot (electrically charged) portion . What I do see in various posts here on F1 . . . is a devoted fear of electricity! I put it off to the use of 240v systems and the resultant distress it must cause people who get themselves in the circuit somehow . I do not like being bitten by 240; 120 is bad enough! Appliances are meant to be home-repaired and I don't hesitate doing so . This post about a heater element is rather interesting . . . IT's JUST ELECTRICITY! Electricity is your friend! Just make it do what it is supposed to do and all is well . Connections are simple . . . the cause of a broken connection can wax prosaically . . . but in the end . . . just fix the connection and turn the device on . It is doubly-grounded as I can see . . . . if that ground is the yellow with green tracer . (We use just green . . . no other colors for ground, although the comon leg is always white! These two colors may NEVER be changed or crossed! Hot legs may be any other color . . . . . just not green or white!) :groan: The device (the bulge-part) appears to be a fuseable link that is meant to sacrifice and open the circuit if the current gets too high, making a hot sandwich press into a cold sandwich press . It will still have purpose after it stops heating . :D |
SurferJoe46 (51) | ||
| 476184 | 2006-08-06 20:32:00 | Thanks Surfer Joe, reminds me of a an electrician I worked with years ago . I was a mechanic at the time and he wanted me to look at some wiring on his car . Despite the fact he would work with live voltage in the thousands he would not touch a 12v car system as he was scared of it . We both knew of course that a few milliamps could kill . |
sam m (517) | ||
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