Search results | Page 2

Search results

  1. E

    What would you code this as.

    I know that, my question was based on the OP claiming that the cable could potentially pull 80a. I was asking how can it when the only thing actually pulling any amps (in the absence of a fault) has an MCB that won't let it pull anywhere near enough to create a dangerous situation? It's a case...
  2. E

    What would you code this as.

    I'm 8 weeks into an apprenticeship and haven't covered it at college yet. Thought MCB's were for overload protection (whatever causes the overload) and no protection to people being shocked because it says it on several sites i've read, and that RCD's were solely to protect people and not equipment.
  3. E

    What would you code this as.

    Thanks for the infos.
  4. E

    What would you code this as.

    I thought MCB's only protected overload and RCD's protected earth faults?
  5. E

    What would you code this as.

    Im not saying these faults don't happen i'm asking about OP claiming the client was 'lucky' because the cable 'could pull 80a' because there's an 80a main fuse. I'm just talking about the installation as it is now not under a situation where it may develop a fault. Isn't it only the equipment...
  6. E

    What would you code this as.

    But what i don't get is the circuits attached to the MCB's attached to the RCD won't allow it so the device pulling the amperage will become disconnected before overheating of the SWA is possible? So SWA->RCD->MCB->DEVICE, before the SWA can overheat 'because it can potentially pull 80a' as in...
  7. E

    What would you code this as.

    But how are you gonna damage it in normal circumstances, it's SWA. Still a bit confused to be honest. Is this one of those situations where it's against regs but in reality not all that dangerous?
  8. E

    What would you code this as.

    But isn't it that the SWA isn't ever going to pull any more than the RCD/MCBs in the shed will allow? I'm just confused as to how someone running a couple of lights and sockets off 6mm SWA has been 'lucky'?
  9. E

    What would you code this as.

    So electrically how is this different from the tails going from 100a incomer to CU?
  10. E

    Newly Qualified Domestic EV Installer

    That's not true - anyone can notify building control it just costs money every time you do so if you're not registered with a scam scheme. Ultimately though it's legally the homeowner's responsibility.
  11. E

    What would you code this as.

    How were they lucky? Sorry i'm confused. Cables don't just pull 80a just because they're attached to an 80a fuse. If he's only got lights and sockets on the end of that SWA which are also RCD/MCB protected i fail to see how it can ever pull 80a. Even if you put five hundred electric rads in...
  12. E

    What would you code this as.

    What's the difference electrically between this coming from 100a incoming fuse to RCD protection in the shed and a regular 100a supply going to RCD protection in a CU?
  13. E

    What would you code this as.

    I know that's why it doesn't make sense to me. Why be worried about the fact that the main incomer is 80a when the swa will never pull that because it's feeding lights and sockets? Basically no matter the rating on the main incomer that cable load side can never pull enough to be dangerous since...
  14. E

    What would you code this as.

    Thanks for the explanation, i suspected as much but wanted to ask to be sure.
  15. E

    What would you code this as.

    Ah i see thanks.
  16. E

    What would you code this as.

    I'm also very confused by the thread. Why would you C2 a circuit for having the potential to pull higher amperage? Wouldn't we then just condemn every installation with 100a cutout since the lights and sockets the tails feed are wired in 1.5 and 2.5mm and so could 'potentially pull 100a'? Lost.
  17. E

    What would you code this as.

    I understand the difference between MCB's and RCD's and what they are supposed to do, but this has raised a question for me. If RCD's only detect earth leakage what is the amp rating for? If you've got a 40a RCD and for argument's sake no MCB's and just connected something pulling 50a on the...
  18. E

    Newly Qualified Domestic EV Installer

    This. The question is how to go about that. It's not easy.
  19. E

    Is this the end of 6 week wonders? New Domestic Gold Card Apprenticeship announced

    Part P is just a building regulation.
  20. E

    Is this the end of 6 week wonders? New Domestic Gold Card Apprenticeship announced

    There's no such thing as 'part p qualified' as far as i know.

OFFICIAL SPONSORS

Electrical Goods - Electrical Tools - Brand Names Electrician Courses Green Electrical Goods PCB Way Electrical Goods - Electrical Tools - Brand Names Pushfit Wire Connectors Electric Underfloor Heating Electrician Courses
These Official Forum Sponsors May Provide Discounts to Regular Forum Members - If you would like to sponsor us then CLICK HERE and post a thread with who you are, and we'll send you some stats etc

YOUR Unread Posts

This website was designed, optimised and is hosted by untold.media Operating under the name Untold Media since 2001.
Back
Top