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  1. B

    Advice on additional cu

    I need some help to clear up a couple of issues I have when aadding additional consumer units for garAge or pv installation. 1. Can smaller tails than the incoming ones be daisy chained from the existing cu to the new one as long as they are rated for the new cu. (16a and 6a) eg 4mm. I'm...
  2. P

    connection of pv onto system with diesel standby generators

    I was hoping someone could help with the following query.... Is there any additional protection that has to be incorporated if you connect PV onto an electrical system with a standby generator connected. The DNO has advised that an additional G59 relay panel is not required at it is under 50kW...
  3. T

    Additional c.u

    I intend to fit a new 2way cu through henley blocks, as the existing cu has no spare ways, my question is what tests are required on the existing cu and existing installation.
  4. S

    Sanyo Panels - worth the additional cost?

    The output of my Philadelphia mono cells falls off by circa 10% in continuous sunlight with little wind as the cell temperature rises. Not many days like that according to my logs. Sanyo HIT cells use a combination of monocrystalline and thin film and their power output increases slightly...
  5. W

    Additional protection

    We have installed 230v bus bar track fitted in a floor void in an office block. These tracks supply the standard floor box outlets. The protective device is a standard BSEN 60898 MCB. I'm struggling to find out how this complies with the 17th edition regs. I was under the assumption that all...
  6. M

    additional cu cable size

    When installing a 'garage cu' adjacent to the main ccu to accomadate an RCD for connecting a TL inverter, what cable size would you use to link the cu's , less than 400mm run
  7. P

    additional earth connection on sb 3800

    I am installing an SB 3800 and it has an additional earth connection for equipotential bonding. Are installers using this additional connection for equipotential bonding. Is this required?
  8. L

    Not dead! What wire to use when spurring a circuit onto additional sockets?

    What wire to use when spurring a circuit onto additional sockets? I dont want to reopen this thread for discussions on ego sharing... but to let you know 1. I'm not dead or flame bait! 2. Wasn't aware until just today of the discussions that followed the orginal thread. 3. I purchased 2.5...
  9. S

    Additional Grounding of the Sunny boy 3300

    Hi All Still very new to this game and was wondering if Anyone knows if you have to separately Bond the inverter, particularly the sunny boy 3300. I See It has a separate terminal lug for bonding, But have never seen any one use it. Any Help would be greatly appreciated as I have my Inspection...
  10. L

    What wire to use when spurring a circuit onto additional sockets?

    I am wishing to extend and install some new sockets close to an existing socket in a room, I am a complete newbie when it comes to electrics although sensible and aware of the dangers, I want to install some additional power sockets in my living room but unsure what wire i need to use. I am...
  11. P

    Additional Consumer units.

    Going to be starting work soon for a company who never change the main board if extra circuits required they just put a small 2 way next to the existing board.The way I would do this would be to spilt the tails and use henly blocks,In some cases this way cant be possible so which other methods...
  12. F

    Do i need to fit an additional RCD on a domestic install ?

    Hi, Been asked to look at improving a Kitchen Radial on a domestic install (TN-S). Need to turn the CCT into a Ring. CCT is MCB protected on an 80's WYLEX board with an integrated RCD to 30ma in a 60A Main Switch (The Main switch is the RCD unit and has no seperate means of isolation and is NOT...
  13. C

    Should I put RCD on??

    Hi I have installed some downlighters/shower lights but these should be protected by an RCD - thing is on the Consumer Unit it does not seem to have RCD in the location I need it to be. I have attached a pic for ease of reference. The showerlights are on the same circuit as the rest of...
  14. J

    rcd to protect tails?

    Hi all, I have been to a job today to have a look. The customer is moving some stud walls in a ground floor flat and wants me to move the electrics within them and fix them temporary while other walls are built. My only concern is the meter box is outside and the 25mm tails and 16mm cpc are...
  15. 1

    Lighting - Adding an additional downstairs hall light and two way switching

    Today I added a new lighting point with two way switching to existing switch in a downstairs hallway. I'm particularly pleased because I had previously struggled with this type of task as lighting/switching kinda confused me:o Today though, I used no diagrams and even remembered in the nick of...
  16. C

    Additional Smoke Alarm

    Adding to a thread I started a while ago. A customer has asked me to install an additional alarm at the request of her building control as she is renting out her house. The extra alarm is to be on the 1st floor. She already has an interlinked system from ground floor, connecting to landing...
  17. D

    Additional Outside light

    Hi All, Looking to install an additional outside light. Currently I have one standard outside light and a double gang switch in kitchen one switch for internal and one for external light. But would like to add the light below with PIR and was wondering best way to do it. Pro Twin Spotlight G9...
  18. C

    additional in-line fan

    I have an installation with 3x in-line fans with timers in seperate bathrooms with back draft shutters and all connected to a single duct and extract. The question is would it be possible to wire up another fan mid way in the duct to come on when any of the others are switched on. The issue I...
  19. R

    Additional earth rods......

    Morning chaps, I've come across a situation a few times with a TN-S supply with an additional earth rod banged in, presumably to get figures down to a satisfactory level, and I have always treated these as TN-S, earthing means-distributors facility with a little note saying about the earth rod...
  20. W

    additional cu

    hi can anyone give me some advice,an old terraced house has an extension on the back which is to become kitchen.the main cu is in the lounge some twenty metres away.i have to get a power supply to provide three circuits.a ring main for the sockets 32a,al lighting circuit for lighting 6a,and a...

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