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separate

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  1. N

    Registering 3 separate systems on a single 3 phase meter

    Does anyone know how or have any experience in regard to MCS registration for an installation where we have 3 separate systems on one roof (all under 16 amp) and 3 inverters/generation meters into the same 3 phase meter? I'm wondering how we register it with the Elec supplier? Any help/advice...
  2. J

    Kitchen Circuits

    In a "average" kitchen (say Washer, Dishwasher, Fridge/Freezer, say 4 doubles (which may be used for normal appliances, kettle/toaster/micro). What circuits do you normally put in? I guess most people put the Freezer in is own 16a radial, and the rest on a FRC, although if all the appliances...
  3. R

    Branching 3 phase 380 to single phase

    I have a question regarding the distribution of single phase 220 VAC branched directly from a 380 VAC 3 phase supply. I have done some research on the web, however have not been able to find a formula that exactly explains my situation, at least not clearly enough to make a solid decision. I...
  4. C

    help needed with non standard heating system

    hi, system has CH & HW Zones system also has back bolier system has no motorized valves so there is 2 zone time clock 1 room stat 1 cylinder stat 1 pipe stat (on back boiler flow pipe) what i need to happen: CH turned on = fire Boiler & Circulating pump HW turned on = fire Just boiler Back...
  5. I

    oven and hob separate?

    Hi guys just wondering the best way to wire ovens and hobs, I usually see hobs on their own via a double pole isolator to the side of the hob and the oven plugged into a socket mounted inside the cabinet sometimes but i dont really like the thought of that, (although mounting equipment to fixed...
  6. S

    3 phase supply + 3 seperate ground mounted systems = 3 systems (3 FiTs)

    We have a customer that wants three seperate ground mounted systems. It is a farm which has a three phase supply with each phase supplying a seperate dwelling. With it being a farm the it is only on one set of deeds. The set up is that the father lives in the main farm house with his sons...
  7. S

    Periodic Inspections

    Hi everyone, Hope you are all enjoying the last Bank Holiday befor the Christmas rush starts !!! Anyway, just a quick question to clarify if possible. So, there are 5 flats converted in a big house. 3 phase supply, then into a meter for each flat, then out from each meter into an isolator for...
  8. E

    two inverters connected separate or parallel

    I have two inverters wired to two strings. Do I need two separate wires from each inverter to an individual mcb. Or can I dual up the supply so only using 1 isolator at the generation meter end. I will still have 2 isolators in the loft adjacent each inverter. Or is it best practice to run 2...
  9. S

    PV on ex-agricultural building

    Hi, I have been invited to prepare a quote for a building which used to be an agricultural building. It has a 3 phase supply so a can easily take a 10kW system. The owner of this building owns the hotel literally across the road from it. At this point I don't know if the building has a...
  10. B

    Bonding between two buildings

    Working in a factory at the moment One half of the building is fed from one street, the other from a different supply in a different street Should the bonding be connected together or kept separate?
  11. E

    Regulation 314 Division of Installation

    Can someone please tell me if it is a breach of Regulation 314, if upstairs and down stairs lighting is on the same circuit. Thankyou in advance for any information given.
  12. S

    separate consumer unit

    I have a job where the easiest solution is to provide a separate CU dedicated to PV (Incidentally this is the recommended way according to NICEIC ). In the attachment is the drawing of how I this is to be connected. I assume this is correct? Thanks
  13. M

    armoured with separate earth

    hi, wondered if there was a table with armoured sizes saying whether or not they need a separate earth running with them im sure ive seen one before but cant find it in regs book cheers
  14. R

    earth stakes for seperate buildings

    Have been asked to quote for a supply out to a small garden room and then on to a greenhouse. Obviously am going to put small consumer unit in garden room to supply sockets but do I need another one in the greenhouse and as these are 2 separate buildings from the house do they need separate...
  15. A

    Ring mains for Computer equipment!

    Another question!!:) I'm wiring a building with 3 seperate stories which are being turned into seperate office units. The building is not that big, probably each floor being around 200 sqm each. Anyway I've put in 6 ring mains in each floor with at most 10 double sockets on each ring just to...
  16. S

    Separate oven and cooker info

    Hi all I am fitting a oven with a separate electric hob Oven is 3400w so going to use 10m of 3mm twin and earth on a 16a mcb Electric hob is 6500 so 10m of 6mm on a 32 amp mcb Question is do i have to fit 2 cooker out lets and 2 dp switches or can i run both oven and hob into 1 cooker outlet...
  17. S

    Do I need a separate Kitchen Ring Main ?

    Hi, A kitchen fitter has just told me that I require a separate ring main for my kitchen that they can do when fitting the new kitchen. Currently all kitchen sockets are on the downstairs ring main and we will be keeping the gas cooker(no increase in load). All they will do is fit a new...
  18. S

    Dishwasher separate circuit?

    Does a dishwasher have to be on its own dedicated circuit? The dishwasher in queston has a moulded 13amp plug top. I cant find anything in the regs to state it does. Im installing a kitchen ring at a reasonable price and an other spark who lost the contract due to his astronomical price is...
  19. M

    bathroom pendant / separate lighting circuit RCD

    hi i just want to clarify two thing as i cannot find it in the regs 1. If i have a endant in a bathroom but the circuit is an rcd protected, doe the pendant needs to be replaced with a propriate IP luminaire to meet the 17th edition standards, please provide a reg number if possible 2. does...
  20. J

    RCD BS4293 ok or not

    Hi all, I installed an outside security light the other day and utilised an existing switched fused spur which was off the down stairs ring. The ring was protected by a 32amp breaker and a 30mA RCD (BS4293 type). When tested the rcd did not meet the 40ms disconnection time as per bs7671 regs...

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