Recent content by axt123

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    Diversity on a 20 Way or longer CU with many (low utilisation) ring mains

    I generally thought double stack boards were more for situations where a portrait design is better suited to the cupboard - you still generally only have one main switch iirc? I guess you get dual busbars but the loading on the incoming remains the same? I strongly suspect the actual drawn...
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    Diversity on a 20 Way or longer CU with many (low utilisation) ring mains

    Hello, A quick question which I suspect is becoming more commonly asked as we go towards having more ways in our CUs. Domestic dwelling, nothing too exuberent but during rejigging the large downstairs ring was split into three and some radials added, as well as seperate feeds to allow for a...
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    Fridge & Freezer Radial - B or C curve on RCBO?

    Indeed, that was my thought, a B20 having a 60A instantanious trip should easily cover a inrush for a domestic fridge, and if the fridge and freezer compressors both start in the same 10ms instant, so the same inrush curve, then you have won the trip lottery.
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    Fridge & Freezer Radial - B or C curve on RCBO?

    Thanks, I guess I was just curiours to see what situations someone would use a C curve in a modern domestic setting as they seem well stocked with suppliers and equally available in all ranges... In the past I used to see C curve (and even D) used in large domestic / light office use but mainly...
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    Fridge & Freezer Radial - B or C curve on RCBO?

    When you say minimum tripping current of device, do you mean the RCBO? Hence for the 3-5x or 5-10x for the different curves instantanious trip this would be 60A and 100A for a 20A RCBO at the thin end of the wedge for instantanious tripping. Some googling would suggest a fairly sanguine inrush...
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    Fridge & Freezer Radial - B or C curve on RCBO?

    Hello, Please help settle a mental ponderance. What is the collective opinion on curve ratings on a 20A RCBO feeding two Radial feeds in 2.5 T&E, one going to a dedicated under counter socket (via DP isolator above counter) for a Freezer and the other doing the same but for a full height...
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    Hello World!

    Oh indeed, Some rabbit holes are simply too deep though when wiring regs are concerned. I have many power supplys with many knobs. Some I even built myself. Also own at least 2 oscilloscopes, and have had many more in the past but kept one CRT 4 channel philips for when digital just won't do...
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    Hello World!

    Hello from Wiltshire. I am an electronic and electrical engineer, background is more electronic design commercially with a bit of panel building work. Occassional foray into domestic investigations and always interested in keeping up to date with wiring regs and testing methods. Also own far...
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