Recent content by chrisdungan

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    Two RCBOs tripping together, no cross-connection. Need help…

    Have you checked for crossed over neutrals? Or one I had some years ago where there was an unterminated cable waaaay up high for an outside light that caused intermittent rcd issues, only tripped when it reined from a certain direction caused the end of the cable to get damp. took ages to trace
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    UK Rotary isolators vs ordinary isolators?

    safe isolation is a number one issue
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    UK Rotary isolators vs ordinary isolators?

    what difference does it make? either /or. I see a lot of rotary DC isolators on solar depends on brand I guess, maybe it's easier to make more arc resistant?
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    Are lorry drivers (or lack of) having an effect on any of your regular supplies?

    We're getting supply shortages down here in New Zealand. Covid has really screwed our shipping supply chains
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    Multifunctional Testers - Which one have you got and how long has it lasted?

    Metrel 3102BT upgraded from an old and trusted HT Italia combitest 2019. Partially because I bought the Metrel EV charger with it as the total deal was at a special price Use a Metrel 3309 Delta PAT for the appliances
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    iPhone chargers. To test or not to test?

    What are you ACTUALLY testing with a PAT tester and a charger? like what is there to test?? these types of switched mode powerpacks only have accessible 230v on the inlet pins. All the rest is either inaccessible or ELV output. Yes I've had issues with induced 230v but when you test the output...
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    RCD Test

    Kiwi inspector here. When I test a caravan RCD where the supply socket also has an RCD I use a modified double wound isolating transformer with the output neutral and earth connected together so that the van RCD is isolated from the house RCD ( so that doesn't trip)and so that the caravan has a...
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    Coffee Machines

    Hi Marty AS/NZS 3001 is the standard that applies here in addition to 3000. The standard for transportable installations. you're from Aus so I assume the inlet is a 15amp flat pin or a 16amp 60309 ( ceeform). You can upgrade to a 32 amp 60309 or a 32 amp 56 series but this can be a issue for...
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    PV Panel - Output Deterioration

    I'm a Kiwi electrical inspector. Second hand panels????? basically why would you bother. Are they damaged? Are they 2019 latest tech??. And as for an 8 year old inverter nah mate I wouldn't bother. UNLESS the customer is on a tight budget. Remember none of it will be under any sort of warranty
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    Can I fit a plastic CU in a shed?

    Why wouldn't you use plastic
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    I never install ring circuits, the potential for danger is unacceptable

    Opinion from a Kiwi. Found rings to be a bit strange when I started work in Eire. Decided they have their uses especiaĺly for simple installs like a 2 story 3 bed terrace. Anything much bigger they're a pain in the arse. Those fused plugtops are a pain too and so bulky. My biggest concern tho...
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    Somebody help me please

    I'm a kiwi who has worked in the UK. We drive an earth electrode at every installation and bond exposed metal back to that through the switchboard. It's VERY rare for us to come across copper pipes My thoughts If it's exposed metal work( including copper pipework) that has the potential now or...
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    Moving to radials in Kitchens

    put whatever you think is best, more is better than less, cable is the cheapest bit. Kitchens and bathrooms have become a major stage production. BUT what about the latest fashion here in New Zealand for 6kw++ induction hobs plus 1 or even 2 ovens? We don't do ring circuits here in NZ but I...
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    Understanding the new regulation regarding Main Bonding.

    You can't earth plastic end of story. don't be a dick. Do you earth isolated sections of any sort of pipe.... water/oil etc etc?? My answer is probably not, it's your call. BUT BUT I have 2 tests to ask 1 IS IT EXPOSED METAL( OF ANY KIND) THAT HAS THE POTENTIAL TO BECOME ALIVE?????? If yes...
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    Is PAT testing worth it?

    If you're going to do it properly on a large scale you'll need a fully automated PAT tester like a full spec Megger which prints tags and creates a downloadable file for the customer. You have to look professional and charge a decent fee. You're up against The wombat test outfits who do it for...
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