times

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  1. M

    Trip MCB at times RCD too intervals days or hours; test if faulty appliance

    Hi I am asking for help as a novice and 1st time user of this forum. Recently started to experience tripping of MCB & sometimes with the RCD at random times, intervals can be days after resets or several hours. Could an appliance or appliances be overloading the circuit? How can I test an...
  2. Antares

    Testing RCBO x5 times

    Hello everyone, Is it necessary to test RCBO x5? Some say that you can’t even test at x5 times because it can damage RCBO. Others that you can, but we don’t put the result in testing sheets. I found a recommendation that it is advisable to test x5. Cheers
  3. P

    Drayton SM1 issue - heating coming on outside its set times?

    My mother in law has a new bungalow (3 years old) with an electric only system. It's controlled using an SM1 controller which I've set to come on once a day between 6.30am and 10pm. She sets the thermostat so the heating comes on whenever the temp drops below the thermostst set point...
  4. J

    How many times can you resit an AM2s section??

    Hello all, Straight to the question, I have passed everything on my am2s part from the oline exam I am now on my 3rd attempt!!!! I was told today by my employer that college had told him if I fail 3rd time I have to resit the whole thing again! is this ture ? I cant find anything online...
  5. D

    Random occurrence , random times

    I have an odd problem. I have 2 wall sconces in a hallway controlled by wall switches at each end of that Hall. On random nights between 3-4AM, the lights will come on, stay on for a few seconds, then off. I also have motion sensor cameras 8n that Hall that detect nothing. Any explanation or...
  6. C

    Horstmann Economy 7 Quartz heater always 'on' - doesn't turn off according to pre-set times on clock

    Hi all, I have quite an old Horstmann Economy 7 Quartz water heating system in my flat (installed around 2007). It's been working fine until the last month, now the water heater always seems to be 'on'. The clock is set to the correct time, and even when it is the middle of the day when the...
  7. cliffed

    Rcd tripping times on EIC

    Testing Rcd trip times would you write down 28.4ms or 28ms If say 28.6 would you write down 29ms.
  8. Loki

    EV chargers turned off at peak times

    Hi, Has anyone heard about this? https://www.dailymail.co.uk/news/article-9982253/amp/Charging-points-electric-cars-preset-turn-NINE-HOURS-day.html
  9. T

    Can electrical engineers do repairs during Covid times

    Hi I am new to this forum and would kindly request advice from any of your members. I have a Solar Inverter which is inside its 10 year warranty but has now it appears sadly stopped working. The company Uenergy originally asked for photos of their instalation, which I provided, claimed an...
  10. cliffed

    How many times

    Just finished a class job
  11. K

    Horstmann economy 7 quartz charging off peak times

    Hello there, I hope you could help me. I have this horstmann economy quartz 7 and it was working fine until last month. It seems I get charged for heating the water during night which should be the off peak time for low rate. My smart meter from my energy supplier is showing too much usage...
  12. J

    Bathroom Mirror with fluorescent tubes turning off at random times

    Hi, I have a bathroom mirror fitted in 2013 with 2 fluorescent tubes and a pir sensor to operate. Its been working without any issues until a couple of days ago. Now when I turn the light on by passing a hand under the sensor the light will then go off after anything from a minute to 10...
    • jazzlover
    • Thread
    • bathroom fluorescent mirror pir random times tubes turning
    • Replies: 5
    • Forum: Lighting Forum
  13. buzzlightyear

    times up

    meet a fellow spark today at the wholesalers ,me said i believe NICEIC has taken over ELECSA for the previous post . the fellow spark told me i have an assessment this Wednesday with are nice inspector .me ok and he's coming to test place that I'm working at and what about 2mter rule...
  14. E

    Becoming an electrician during covid times..

    Hello everyone, I am new to this forum. I have seen the posts about becoming an electrician, however, given we are living in uncertain times, I would really like some advice on becoming an electrician during the covid years. I have a degree in electronic engineering and I have been working...
  15. 0

    RCD disconnection times!

    Hi all, just a quick one regarding RCD disconnection times. So for non rcd protected circuits disconnection times of 0.4 / 5 seconds and 0.2 / 1 second for TN + TT final and distribution circuits. RCDs (fire / fault protection) usually 300ms at rcd for rated current. (differs when s type)...
  16. Rockingit

    Lead times for new OpenReach connections in London?

    Anyone have any recent experience on how long it takes from first phone call to actual installation for new phone connections to new build complex's in central London? Trying to give a ballpark to a client.
  17. D

    0.4 seconds or 5 seconds

    Just a quick question. This might sound like a stupid question so apologises. I'm slightly confused with the regs 18th edition when it comes to disconnection times. So I was taught in college that in the 17th edition that when a circuit is less than 32A then the maximum permitted time is 0.4...
    • David345
    • Thread
    • 18th automatic disconnection of supply disconnection disconnection times regs seconds times tripping times
    • Replies: 21
    • Forum: UK Electrical Forum
  18. B

    Disconnection times not met

    Three questions haha 1. 160A MCCB the max Zs for this particular switch is 0.25 ohms all tested and I’m getting 0.44 ohms its a 95 SWA outgoing which feeds another panel which has its own outgoing circuits would I be right and say that would be a code 2? As I can’t meet disconnection time on it...
  19. Mark Wright

    Disconnection Times Again! Fig 3A4

    Looking at Fig 3A4 Type B 60898 unless I'm getting it wrong once we In*5 our device there is no way of telling if our disconnection is 10s or 0.1s unless im missing something although this seems quite important??? as our Disconnection time needs to be at least 0.4 seconds and for doing our...
  20. Gavin John Hyde

    Advertising and cutting back in these times

    This isn't about the pros and cons of the various job lead and advertising sites. Had an email from checkatrade saying that during April and probably future months you can either pay a reduced 50% monthly fee or become associated member which means you won't appear in general search results but...

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