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| Just zapped myself (electrical wiring help) |
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| Titchgamer:
--- Quote from: jennifer on August 25, 2020, 07:35:00 pm ---T/gamer... After rereading your post a few times, left me with more questions than answers (will have to research A bit more in depth), However our conductors over here are like yours in a flat cable, (2 insulated with 1 bare ground) the only real difference there is it is generally a solid core wire, not stranded...like the Old guy says, rather than a center tap, the fuse panel kind of acts more as an adder through a circuit breaker (120v X 2 for the 220v), and from there througout the building 14 ga wire is used, on shorter runs, and some times 12 or 10ga. for more current demanding circuits, or longer runs,, and like said earlier, quite common to twist the wires together in junction boxes along the way, basicly just adding to the circuit (without over loading it, but by design), and then with like dimmers/3 way switches the wiring can get quite elaborate at this point even confusing, since then the wiring is run point to point as extentions of the switch, and depending on how it was done you may even find a black wire tied to a group of whites at some point (generally not more than 4 at any 1 connection however)...As for your circuits, it doesn't sound the same, starting with the 220 inputs at assumed quite high amp, on the surface sounds like extreme potential for disaster...Just saying, be careful man. --- End quote --- Well I am a electrician so have to deal with this stuff daily lol. What question do you have specifically Jen? Our twin and earth cable does come as solid core also but I think most people prefer stranded for ease of use. As for the currents as I mentioned above our whole safety system is based on generating a high current to operate the protective devices quickly. Circuit breakers and fuses are designed to protect the circuit not the user (despite common belief). But to operate them fast you need much higher currents than what they are rated for. For instance a 6A fuse will allow 6A to flow all day, Now people think that if you put say 10A through it that it will blow. But thats not really the case, They will blow eventually but it will take quite a while as such a small increase takes so long to heat the fuse up sufficiently to melt. However if it pulls say 100A it will blow instantly (as you would hope!) This prevents cables etc heating up sufficiently to do damage. Its the same principal with circuit breakers, Theres actually graphs which plot the time taken for fuses etc to blow at certain ampages over time. But yeah our system is designed so that in the event of a short the fault current will operate the circuit protection in fractions of a second. But in order to do that it can pull several thousands of amps lol |
| DaOld Man:
Here is an interesting video of breaker VS fuse: |
| jennifer:
I dont really have any more specific questions as you have covered the bases T/gamer...But since you opened my eyes to the facts of potential differences I want to look into like building codes and such just to make sure I am not potentially missing out on a different way to skin a cat (so to speak) in other facets of electrical studies (yes I do alot of that, Lol) Like Induction, or how to safely wire a scratch built machine, for example, even small differences in comparative ways and materials might make the difference to my understanding of such...The biggest crossover problem I have to deal with is the Metric vs Imperial thing on materials, but Even that has gotten considerably easier with the online conversion charts available today...THX.😘 |
| Titchgamer:
--- Quote from: jennifer on August 26, 2020, 10:45:07 am ---I dont really have any more specific questions as you have covered the bases T/gamer...But since you opened my eyes to the facts of potential differences I want to look into like building codes and such just to make sure I am not potentially missing out on a different way to skin a cat (so to speak) in other facets of electrical studies (yes I do alot of that, Lol) Like Induction, or how to safely wire a scratch built machine, for example, even small differences in comparative ways and materials might make the difference to my understanding of such...The biggest crossover problem I have to deal with is the Metric vs Imperial thing on materials, but Even that has gotten considerably easier with the online conversion charts available today...THX.😘 --- End quote --- Glad it helped. I find it interesting to find out other countries do it to :) |
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