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  1. J

    Using an alternator to run a motor

    Hello there.- I have a 550W 3ph electric motor / pump and a VFD which is a 220VAC input to 220VDC which is connected to my motor, so my motor can start at a lower speed until reach 1,390 rpm, also I have a 12VDC to 230VAC pure sine 1000W inverter, my question is: If I use a car alternator that...
  2. T

    Multi way switching using only 1 way switches?

    Hi My bungalow hall lights can be turned on and off from 4 different switches. I was expecting these switches to be a mix of 3 way and intermediate switches, but all 4 of them are just 1 way switches. I now have a problem that my hall lights are permanently turned on, and none of the switches...
  3. D

    Re using Bakelite switches

    Evening All Just quoting for a re-wire and the customer has asked if he can keep his original bakelite switches, not sure about this but guessing he can't as they don't conform to current BSEN. Can anyone point me the right direction?? Cheers in advance
  4. S

    Using earth as neutral

    We’ve pulled in a 185 cable just and realised that we need a neutral. It has 4 cores, brown, black, grey and earth. Can we use the earth as a neutral if we shrink wrap it with neutral sleeve and then run an earth separate? It’s a tri-rated cable, so no armoured to use as earth.
  5. Jiya90

    New kitchen rewire using a new board

    We are having our kitchen moved to a different part of the house. I have asked that the wiring for the new kitchen be using a new consumer board. The old kitchen will be changed into a bedroom. What changes need to happen to sockets and wiring of old kitchen. Also in the new room where...
  6. M

    Using low voltage lamps and Selv power supplies in domestic livghting

    Hi, I have a ceiling rose which doesn't have an earth wire and I want to connect a light fitting which requires an earth connection. It's not possible to rewire the ceiling rose at the moment so I am considering the possibility of using a low voltage (12 - 85 volt DC) E27 led lamp connected to a...
  7. Rupert Young

    DIY van racking using Tamstrut slotted channel

    sick of arriving on site only to realize I hadn't foreseen the need for something I hadn't packed the night before, after looking around at products like Bott Smartvan decided to do my own using unistrut, fatmax pro organisers, vanvault slider, euroboxes and Milwaukee Packout, added some LED...
  8. S

    What to do with two additional red wires when using newer light fitting?

    I am changing a light fitting and have excess wires. I’ve matched up the three core wires for the feeds I have but have two additional red wires left (pic included). What do I do with these? Just tape them off separately? Or should they be inserted somewhere? Thanks in advance for any help! (I...
  9. J

    Under cupboard lights installation using socket mounted under cabinet

    Hi all. Some advice sought. I have 2 lights under my cabinets they plug into the wall sockets below them. I now want to hardwire the lights as i got a new cooker hood fitted and the spark pulled the power cable out so its now accessible to use. Previously it was hidden. So it looks like a...
  10. R

    using inline dimmer with pwm driver

    Hi everyone , i am trying to use inline dimmer to dim several 1w high power leds , connected in parallel .i purchased this dimmer (see below, the smaller one) , but it didn't work , the store support told me it's not for pwm, which is what i need.(i swear it worked fine when i did the same...
  11. HappyHippyDad

    Understanding and using a TV splitter.

    Evening all.. In the past I have used one of these for splitting the cable for terrestrial TV: This time when I fitted it the TV (at the new TV aerial socket that I had fitted) did not receive a signal whereas the existing TV still did. I removed the new coax cable from the splitter and...
  12. C

    Using an encoder to control a VFD.

    I need to use a rotary encoder to control the speed of a VFD, so if the line speed varies then the VFD also changes. I have no experience of this. Usually I use Rexroth drives (not Indramat). Can these use an encoder easily enough? Or can you recommend one and an encoder please! Thanks.
  13. S

    Relay controlled by power to an LED

    Hi, I have a 12V output from a control box that lights an LED. I want to use that output to switch power to a camera, but don’t want to lose the LED. The LED has a resistor in series. My first thought was to just put the camera in parallel with the LED, but then thought a relay with the coil in...
  14. G

    Using a USA furnace blower rated at 115v in the U.K.

    Good afternoon I have a furnace blower from USA that I’m using as part of a filter box, the blower is a 115v and 1.35amp DAYTON Rectangular Permanent Split Capacitor OEM Specialty Blower, Flange: Yes, Wheel Dia: 6-3/16", 115VAC - 1TDR7|1TDR7 - Grainger -...
  15. K

    Using 7 Core Armoured as Twin and Earth ?

    My daughter has some 7 core armoured cable running to her garage which looks to be 1m2 or possible 1.5m2. It carries a 2-way external light switch connection to switch on 2 external lights ( house and garage) from either the house or the garage, and there is also a single 13amp socket connected...
  16. F

    Off-Grid micro grid system using SMA hardware

    Hi Guys, We are working with a client who has for a number of years used a 10Kw Bergy wind turbine for household power...with lead-acid batteries( which did extremely well) plus a 10Kw generator as a auto backup service. The new power system will see a proper micro grid in place with a new...
  17. Paul Langham

    Wiring 2 lighting circuits using one 6 terminal junction box

    Hi there, my name is Paul and I'm currently studying towards a city and guilds level 2 electrical installation, we are currently on lighting circuits for our practical, we have been given a task to wire up 2 lighting circuits using a 6 terminal hager junction box, I'm ok with wiring one circuit...
  18. J

    Combined East and South facing panels impact using a bypass diode

    I am new to the forum so Hi to everyone out there! I am also a new DIY Solar PV user and I am looking for some technical advice on an unusual string configuration. So some prelude before the question: I have been looking at Solar on and off bust its always been too expensive and the FIT's keep...
  19. T

    FAULT FINDING USING CONTINUITY TESTER ONLY

    Hi all & thanks in advance for the time. I'm due on Monday to complete my trade test. (FICA IN SCOTLAND) The part of my test i am to undertake is Fault Finding and rectification. For the test i will be put in a booth by the assessor and issued a job card that briefly describes the...
  20. oracle

    Using other measuring equipment for testing?

    The Regs allow the use of other "measuring" equipment. Are any of you using such equipment and if so, what? Reg 643.1 The tests of Regulations 643.2 to 643.11, where relevant, shall be carried out and the results compared with relevant criteria.Measuring instruments and monitoring equipment...

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