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    RCD disconnection time?

    Had a PIR done yesterday on an installation that it fed from a 7.5KVa generator. This feeds a CU through about 15 mtr of SWA. All the "dead" tests on the circuits after the CU were ok. But when the Hager 100A/30mA RCD was tested, it took 60msec at 30mA to disconnect. The question is this. Is...
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    high earth loop resistance >200ohms (rcd protected circui

    So, if you are pretty certain your TT earth is ok, and if the Hotpoint man made his measurement with an ordinary DVM to "condem" your installation, then I assume you don't want to go to the expense of calling an Electrician out unnecessarily? If this is the case, then I suggest you contact...
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    house re-wire

    Talk to your local BCO before you start to ensure you don't make any mistakes with, for example, switch/socket hights, smoke/heat detectors, boiler spec, oil tank siting etc. Might even be some planning issues (chimney removal?).
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    Plumbing Wiring SPDT Relay?

    OT Toasty, but if you come across a ACL OCC720 please let me know, went out of production about 10 years ago, uses a remote thermistor as the sensing element for the built in thermostat.Thanks.
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    Achieving Part P

    I wonder if this approach would work? Make one Application to your LABC for "reorganising my electrics", listing everything that needed to be done, paid their fee etc. and then did the work, advising them accordingly. They would then have to inspect & test etc., and you would achieve your end...
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    We will never be without power

    I have often wondered if mixing filtered cooking oil with parafin (or 28 sec CH oil Kerosene) to get the viscosity to match (or thereabouts) that of Red diesel (35 sec) would be ok for the sort of engines these generators use? AFAIK, you don't generally find common rail ones used in these...
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    Sattelite Dish

    "FTA" cards : -- Strictly speaking, signals that are transmitted unencrypted are known as "FTA", these can be displayed from any FTA receiver, or a Sky box with no card in its slot. Signals that are encrypted but that can be displayed from a Sky box without a subscription by use of a card that...
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    Solar panel heating Help!

    I guess his Tutor knows that converting the suns energy into electricity to heat the water is less efficient than the "water solar panel" method (for a given physical size of panel), and also much more expensive. But that does'nt prevent him investigating what is, in effect, putting a suitable...
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    Talbot Talisman

    The bungalow is about 25 years old. The box it about 5 ft off the ground right outside the front door. The incoming phone line is higher up on the same wall. Did'nt have time to investigate where the wire went. It could just be a JB from a now redundant phone system, but a funny place to put a...
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    Talbot Talisman

    On the outside of a Bungalow is a round Black Plastic box, about the size of a big JB, labelled "Talbot Talisman". It has a length of low voltage Atarm/BT cable leaving it & going into the loft. Regard can't post a piccy. Anyone know what it is. I googled but only got motorhomes!
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    Old Breakers

    I am on the lookout for a 2 or 3 pole c/o switch, to carry 100A; metalclad type, any chance?
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    BT Master Socket - can NTE5 extensions interfere with ADSL?

    So, Bernard & TicklyT diagnosed the cause of the problem, great posts from both of them, I think we all owe them a vote of thanks for enlightening us.
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    Eletrical Equipment - drawing too much power - how to test ?

    Getting a bit OT but have just phoned them : -- You don't need an account if you visit their Trade Counter at Preston, but for phone/Internet purchases you need an a/c. However, this can be set up quite quickly & easily.
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    Eletrical Equipment - drawing too much power - how to test ?

    And from Maplins ref L61AQ, and from CPC (if you have an account). Super bit of kit.
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    clip on meters

    You could use three "Electrisave" (or similar "energy Monitor"- google) monitors with wired sensors. Suggest they would need to be in a locked cabinet to prevent tampering?
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    a rather tricky solution reqired..

    You could float something on the surface, with a thin metal plate on its top. Connect one wire to this. Dangle another wire from above, with a metal ball to keep it taut, when the two meet you have your contact.
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    Dual Immersion heater

    I have a Pullin 082521 27" Imm. heater, two elements, two thermostats.(Standard 2 1/4" fitting). One element has failed. Can't seem to source a replacement. Are they still avaliable, (or an equivalent)?
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    High Ze - Low Zs

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    High Ze - Low Zs

    Big_Spark : -- It appears that Plugwash, Securespark, Spark123, Philrosenbury & I all disagree with you. I suggest you show your EDF friend the WHOLE of this thread, and then post his opinion.
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