isolator

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  1. I

    seperate light circuit not going through main isolator on control panel

    Hi just wondered if someone could clarify the regs for me,got a control panel feeding a machine isolated by a three phase isolator which also turns the lighting off ,but we need the lighting to remain on when the isolator is switched off,what are the current regs regarding this thanks
  2. Msitekkie

    Bad experience having isolator switch fitted by Scottish Power/Actavo

    I "recently" contacted my DNO to have an isolator switch fitted beside my meter (my consumer unit needs changing and I didn't want to pull the fuse). I was told I needed to contact Scottish Power who charged me £85 but failed to turn up for the appointment, resulting in me having to contact them...
  3. D

    Fan Isolator switch alternative

    Hi. Random question, but in our utility room we have an extraction fan like what is normally found in a bathroom. Currently doesn't come on with the light or anything like the bathroom one. It has its own independent isolator switch which leaves the fan on or off continuously. Does this have to...
  4. joel89

    3 phase Isolator in series

    hi all I am fitting a rotatory isolator in series with the panel door mounted isolator on a star delta radiac saw. The current main isolator located near the DB has Red, Yellow, Blue coming in. Going out on Brown across red Grey across yellow and black across blue. The cable goes to the panel...
  5. K

    Query - Distribution Board to Isolator

    Hello! Im an AC/Fridge Engineer just gone Sole Trader. So Im trying to price up an AC install package for Domestic and Commercial Customers and im scratching my head when in comes to the cost of wiring some Twin & Earth from the Distribution Board to an Isolator on the Outdoor unit. First of...
    • kbrew
    • Thread
    • board distribution distribution board isolator query
    • Replies: 29
    • Forum: UK Electrical Forum
  6. R

    Isolator versus protection device on main incomer

    Hi, i'm only a student so please forgive me for the basic question: Say you have a generator or power transformer serving a main mccb panel, why can't the main switch of the panel be just an isolator? I've only seen the main switching device as a mccb or acb. I know that in a house you'll have a...
    • Richard100
    • Thread
    • device incomer isolator main protection
    • Replies: 6
    • Forum: The Welcome Forum
  7. R

    Bathroom extractor fan need an isolator?

    Just quoted a job and included a fan isolator for the bathroom fan that needs replacing. Customer has informed me that he wants a fan (without timer or humidistat) wired to a light switch outside the room (2gang switch 1 is light /1 fan) and doesn't want the pull cord isolator. Do I need an...
  8. Gavin John Hyde

    DNO charges when needing isolator fitted.

    Spoke to the local DNO this week, as a job im quoting for needs an isolator fitted so i can run a small second CU from a henley block to supply an extension. I may also be running a supply to the separate garage in the foreseeable future. I only need them to either de-energise supply and i will...
  9. S

    Amendment 3 2-module enclosure or 100A DP isolator.

    I have a situation where I have fitted an RCD incomer consumer unit alongside another existing RCD incomer unit to provide RCD protection for remaining circuits. I didn't fit an isolator for the two units so to turn off all power to the building you have to turn off both RCDs. I know there was...
  10. Midwest

    TP Fan Isolator in Shower Room

    Went to look at a job yesterday, shower room refurbishment. I'm just replacing the existing main light, vanity mirror and dual fuel towel rad. No RCD protection on lighting, but as I'm just replacing what's there, I consider that just maintenance. There is also an extractor fan, located outside...
  11. R

    Isolator between meter and CU

    Had a discussion with a friend regards an isolator installed between the meter and consumer unit. The meter is otherwise of the wall and tails enter through the wall into a Henley block. Then the Henley block feeds 2 CUs What's your thoughts please as I want to install one and he is telling me...
  12. J

    40 Amp MCB supply to a 100 Amp Distribution Panel Help!!!!!!!!

    My industrial unit is supplied via solar power. All the switchgear and mains supply etc. for the solar is in the unit next to mine to which I have no access unless the tenant is in. The landlord has got the supply coming from the solar unit through a 40amp MCB into our main distribution panel...
  13. P

    Outdoor isolator installation query

    Hi all, Just joined this forum whilst doing research, so thought why not ask my question directly. I am going to have a small split system aircon unit installed for my bedroom. It will be a modern Mitsubishi unit with a starting current of only 3.5 Amps, nominal running current of 2.9 amps...
  14. T

    Isolator for more than just a fan

    Was thinking the other day about how you need to have an isolator for a extractor fan. Would anyone agree that you would also require one for say a mirror light/shaver light??
  15. R

    Cooker isolator, 2 appliances

    Conducted a PIR on a property and when inspecting the cooker isolator I noticed that it was providing isolation to two ovens (both hardwired to seperate outlets). The specs of the ovens were 3kw each, however the Cooker circuit was wired from CU (32amp mcb) to isolator in 6mm then the two...
  16. D

    Isolator required when replacing extract fan feed??

    I need to replace the feed for an extract fan from the bathroom light and need to know if I'm required to install a fan Isolator switch, as currently there isn't one or if I can just replace the cable? It is a timer fan and looks to have been wired using 1.5mm flex, with the earth being used...
  17. D

    Heat pump advise please

    Currently doing an EICR and would like some advise on loadings on an air to water heat pump as my experience of these is limited. The pump is a single phase Mitsubishi PUHZ-HW140VHA and the rating plate states 'rated current 23.3/14.9a' and 'maximum current 35a'. The unit was recently installed...
    • Deleted member 9648
    • Thread
    • advise current heat isolator please pump
    • Replies: 1
    • Forum: UK Electrical Forum
  18. stephen atherton

    Blue C Form plug on cooker

    This may sound odd, but is there any reason I can't pop a Blue C Form plug on a cooker - new range cooker arrived and it needs only 20 Amps as most of it is gas except for one oven and the igniter. The radial Cooker circuit is already in and the isolator is on the wall (nicely tiled around) to...
  19. M

    Isolation for a bathroom fan

    Hello I work as a maintenance man in a hotel that has recently been fitted with Greenwood Unity CV2GIP bathroom fans. These fans run constantly, full speed when the light is on and trickle speed when the light is off. No isolation switch has been fitted for these fans other than turning off the...
  20. T

    Tails from meter to DP isolator

    Hi all, just wondering where i stand here. Scenario is as follows PME supply, 60a service fuse, 16mm tails running into DP isolator in the meter box. Going to upgrade the CU,no problem with load etc so the 60a fuse is fine. Was going to run new 25mm tails into the Dp isolator. Do the tails from...

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