I've got 200m of 4 core mains cable. I'm making an extension reel for single phase 250v mains. Do I;

I've got 200m of 4 core mains cable. I'm making an extension reel for single phase 250v mains. Do I;

1) Leave the forth cable doing nothing
2) Double both live and neutral with no earth
3) Double live but single neutral and earth
4) Double neutral but single live and earth
5) Double earth but single live and neutral

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  1. 2 months ago
    Anonymous

    >1) Leave the forth cable doing nothing
    Makes sense

  2. 2 months ago
    Anonymous

    OP here. I might as well mention that I have a discord server for people with extreme autism. PM me for details.

    • 1 month ago
      Anonymous

      > sends DM's on PrepHole

      run 2 phase and drop a small breaker box at the other end. or #2 and become a PrepHole legend for being stupid. how the frick do you get 250v single phase in the first place?

      > 2 phase
      It's split-phase.

      Numerous others have already slapped your face for such a mistake. I have, at one brain farty day, used the term 2-phase, and got visited by heath ledger's Joker, who thought I was now his best buddy.

      >230 volts, if you are at 250 you are 3 volts from nominal failure

      Why do people who know nothing always talk the most?

      It's 230 volts -6%, +10%, meaning anything between 216 and 253 is within range.

      > 250v is perfectly normal
      Ouch

  3. 2 months ago
    Anonymous

    OP has recurring nightmare where he's being chased by pic-related

    • 1 month ago
      Anonymous

      Remember the ones with no tab to tell which way it was supposed to go? Frick PATA!

  4. 2 months ago
    Anonymous

    6) call an electrical journeyman because OP is an incompetent homosexual who has no business making an extension cord.

    >ftfy

  5. 2 months ago
    Anonymous

    run 2 phase and drop a small breaker box at the other end. or #2 and become a PrepHole legend for being stupid. how the frick do you get 250v single phase in the first place?

    • 2 months ago
      Anonymous

      >2 phase
      Terms that hardly anyone ever uses. Yes he technically will have 2 phases at 250v. Yet he still only has a single phase electric service.

      You don't have severe autism do you?

      • 2 months ago
        Anonymous

        >Yes he technically...
        No, he specifically won't. Single-leg, single-phase, 250V leg to ground.

        • 1 month ago
          Anonymous

          >Single-leg, single-phase, 250V leg to ground.
          This.
          OP is in Europe. Hence the "I have 200m". And Canada doesn't have electricity yet.

    • 2 months ago
      Anonymous

      In principle double neutral, single live earth would be beneficial, but in practice I probably wouldn't connect the fourth wire because if someone else ever goes to frick with the cable, they could mess it up and make it dangerous.

      Vast majority of the world has 250V single phase, 400V three phase.

      • 2 months ago
        Anonymous

        The majority of the world has 120/240v split single phase, 120/208v 3 phase, 120/208/240v 3 phase, or 277/480v 3 phase, idiot

        • 2 months ago
          Anonymous

          From a fellow American to another: America is not the majority of the world. Most of Europe and Asia have single phase 240V, no split-phase business.

        • 1 month ago
          Anonymous

          Muttmerica is 300 million weak. The majority of the world indeed has 220-240v single phase 400v 3 phase.

          • 1 month ago
            Anonymous

            USA has 240 wires where we need it, like the dryer, water heater, stove/oven, well pump.

            • 1 month ago
              Anonymous

              Stoves get 400V 3 phase connections, big water heaters get it, dryers don't pull 3600W so they can get single phase.

              >those get 10A which is hilariously more than a lot of American outlets get
              15 amp breaker for most outlet circuits

              Oh wow a whole 1800W! Fricking hell I thought it'd be more than that.
              230*10=2300
              The usual outlet is 16A (2.5mm wires)

              • 1 month ago
                Anonymous

                > Stoves get 400V 3 phase connections, big water heaters get it
                > run 3 phase to the house just for the stove

                We just physically connect 2 16A breakers together and then run 5x2.5mm for a whopping 7.5kW total

              • 1 month ago
                Anonymous

                >> run 3 phase to the house just for the stove
                Yes. It's been done since the 70s here.
                >physically connect 2 16A breakers together
                Sounds jank can't you just put one 32A?
                >and then run 5x2.5mm
                That is the standard three phase outlet cable...
                >for a whopping 7.5kW total
                So jack shit compared to a true three phase outlet.

      • 2 months ago
        Anonymous

        230 volts, if you are at 250 you are 3 volts from nominal failure and mandatory shutdown of most inverters and other smart devices. You are far too badly informed to be messing with electricity. Especially when you are pulling 4 x cables, instead of 3x or 5x which are the standards. You are using specialist machinery cables for domestic use because you are a moron.

        • 2 months ago
          Anonymous

          Why are you pretending to be an expert when you clearly have no real world experience?

          • 2 months ago
            Anonymous

            I am an electrician working with EU voltages. What the frick are you talking about.

          • 1 month ago
            Anonymous

            But he's completely right. A 4 wire cable like OP's pic has the colors of L1+L2+L3+PEN. Not sure where you'd use one that thin in a domestic setting really. Outbuildings should be on TT earthing anyway (N and the PE is just a rod at the building which is never tied to N).

            my 3 phase 18 kW central heating boiler laughs at american scum

            My 1 phase 36kw heater laughs at yours as it dims the lights on start up

            Both of those would melt my house's cables, god damn.
            How small is your house that you can heat it with 18kW anyway?

        • 2 months ago
          Anonymous

          >230 volts, if you are at 250 you are 3 volts from nominal failure

          Why do people who know nothing always talk the most?

          It's 230 volts -6%, +10%, meaning anything between 216 and 253 is within range.

        • 1 month ago
          Anonymous

          I'm replying to OP in the same post and you still assume I'm OP, you don't know the nominal voltage ranges, and you still go out of your way to try to lecture people and call them morons because
          >I'm le certified electrician big boy, if I think it's true then it's true
          The standard range that most of the world uses is 220 to 240v, there's no fricking way that universal "smart" devices are designed with 3% tolerance, at most extremely sensitive devices like UPS might allow you to set thresholds that low. I said 250V because nobody cares you fricking nerd.

      • 1 month ago
        Anonymous

        >In principle double neutral, single live earth would be beneficial
        what principle is that?

        personally i would connect to earth if not in use just to give it somewhere to be so its not floating around inside wherever it is.

    • 2 months ago
      Anonymous

      >2 phase
      Not a thing unless you are an experimental engineer from the time of Edison. Its either single phase, three phase or split phase for Americans. You goddamn moron.

      • 2 months ago
        Anonymous

        >split phase
        This is the correct terminology.
        The 2 phases coming in to your breaker box as your mains are out of phase by the standard 4/3 π radians. (I don't know what they do in Whereverthefrickistan, but I assume it's similar, unless it's one of those weird one-wire/earth-return countries.)

        • 2 months ago
          Anonymous

          Split phase is unique to the USA, as Europe uses 230v single phase, which is plenty. Only reason the USA even has split phase is a cope to deal with their 110v net.

          • 2 months ago
            Anonymous

            >cope to deal with their 110v net
            110v doesn't exist anywhere but the load side of the transformer on the power pole. There is no "110v net."

          • 1 month ago
            Bepis

            *120v

        • 2 months ago
          Anonymous

          >are out of phase by the standard 4/3 π radians.

          gee prof, is that the same as 240 degrees? How is that different from 120 degrees, and do you actually have shit that runs on it? anyway, in freedomland split phase means 180 degrees, or exactly out of phase, which is derived from a single phase using an ordinary transformer.

          • 2 months ago
            Anonymous

            >is that the same as 240 degrees
            To midwits, yes. Except it's not that. Not even close. But good on you for using google.
            >How is that different from 120 degrees
            Well, 240 is exactly twice as many as 120, isn't it.
            >in freedomland split phase means 180 degrees, or exactly out of phase
            No it doesn't.
            >which is derived from a single phase using an ordinary transformer
            No it's not.

            • 2 months ago
              Anonymous

              by golly i think you were wrong on every count there, professor. please give me your version of events.

              1. google? everyone with a decent education can convert radians to degrees
              2. you can't tell two phases in a 3 phase system apart, except that all three are 120 degrees apart. and if you know what that means, 120 is exactly the same as 240.
              3. in freedomland our split phases are indeed 180 degrees apart, and are exactly out of phase. they come from a simple transformer that begins with a single phase. and if you are not splitting hairs, they are what I said.
              4. this is getting old. are you actually trolling my ass off? if so, you got me.

              • 2 months ago
                Anonymous

                >3. in freedomland our split phases are indeed 180 degrees apart, and are exactly out of phase. they come from a simple transformer that begins with a single phase. and if you are not splitting hairs, they are what I said.
                split phase is not 2 phases that are 180 degrees apart, it is a single phase that is center tapped with a grounded conductor.

              • 2 months ago
                Anonymous

                >it is a single phase that is center tapped with a grounded conductor
                Finally. Someone who knows what they're talking about.

              • 2 months ago
                Anonymous

                >3. in freedomland our split phases are indeed 180 degrees apart, and are exactly out of phase. they come from a simple transformer that begins with a single phase. and if you are not splitting hairs, they are what I said.
                split phase is not 2 phases that are 180 degrees apart, it is a single phase that is center tapped with a grounded conductor.

                >single-phase
                180 degrees is NOT a phase. This difference is crucial. Phase is what allows a motor to start. A split phase system cannot start a motor, you would need a shaded pole or a starter motor (with its own shaded pole). "Two phase" systems still exist or have existed but are mostly obsolete now. The phase in that case is 90°, not 120° nor 180°.

                >split phase
                This is the correct terminology.
                The 2 phases coming in to your breaker box as your mains are out of phase by the standard 4/3 π radians. (I don't know what they do in Whereverthefrickistan, but I assume it's similar, unless it's one of those weird one-wire/earth-return countries.)

                >4/3 π rad
                Shut the frick up, nerd.

          • 1 month ago
            Anonymous

            >and do you actually have shit that runs on it?
            Every single electric cooktop with 4 burners
            2 burner cuck models or 2 electric + 2 gas burner use a single phase 230V. Washing machines, dryers, most ACs and water heaters run off single phase too, though bigboy heat pumps and central water heaters over 200L with heating elements over 3kW need 3 phase.
            Standard breaker for euro single phase outlet is 16A so we can draw 3.6kW from them. Lighting circuits use thinner wire those get 10A which is hilariously more than a lot of American outlets get but I guess it's also practical to be able to wire them all into each other, it's not standard here.

            *120v

            It's really just 240v you dumbfrick selfdoxxing mutt. The wires to run a water heater or stove off 120 would need to be absurdly thick because it'd be like 60A.

            • 1 month ago
              Anonymous

              >those get 10A which is hilariously more than a lot of American outlets get
              15 amp breaker for most outlet circuits

      • 2 months ago
        Anonymous

        2 phase is a thing in the united states. rare, but mostly a product of an area being electrified before they could quickly and accurately calculate 3 phase loads, and they cant just rip all of the infrastructure out now and leave people without power until its rebuilt.

  6. 2 months ago
    Anonymous

    Nowhere in the world uses 250v
    You posted a cable with no Neutral.

    I dont think you should be allowed near electricity.

  7. 2 months ago
    Anonymous

    What specific nation, what specific code, what specific connectors?

  8. 1 month ago
    Anonymous

    OP, why don't you just return the cable to where you purchased it and buy the correct cable for your project? (3 conductor)

  9. 1 month ago
    Anonymous

    Whatever the frick but
    >2) Double both live and neutral with no earth
    Do not remove PE, that's absolutely moronic.

  10. 1 month ago
    Anonymous

    my 3 phase 18 kW central heating boiler laughs at american scum

    • 1 month ago
      Anonymous

      My 1 phase 36kw heater laughs at yours as it dims the lights on start up

  11. 1 month ago
    Anonymous

    You know, the extra wire won't do shit by just being there while being not connected to anything.

    you may leave the fourth cable to do nothing and use the 3 as live neutral and ground, but make sure that the unused cable end is properly insulated and kept away from the rest of 3

    You may double the amp carrying capacity of the whole cable by Doubling both live and neutral with no earth but by doing that, you need to be super careful with color code

    Best is to just double the ground, that way any nick/damage in the cable is even more likely to trigger a GFCI

    But 200m? if it's that long, contractors will sell their soul to get it on discount so make your life simpler by switching to 3 core

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