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  1. K

    How does Touch voltage work without RCD protection

    Hi everyone I asked my assessor about touch voltage and he was not keen on explaining properly and gave me a rough answer which made me think probably he was not sure himself or was hiding it. basically my understanding is afcourse that how 30mA RCD works to limit touch voltage to 50V is by...
  2. K

    chasing wall for consumer unit cables or trunking ... Advice needed

    Thank you, everyone, for your suggestions as they helped a lot, really appreciate it!
  3. K

    chasing wall for consumer unit cables or trunking ... Advice needed

    thanks for the reply however, its only going to be boxed upto consumer unit and the above part of the wall is going to be left skimmed so was wondering if chasing the wall or trunking in the corner would be viable option
  4. K

    chasing wall for consumer unit cables or trunking ... Advice needed

    Hi everyone I am after a bit of advice. Just done rewiring for a property but the main incoming supply cable is just right next to the main entrance door so agreed with the customer to install a new consumer unit right above the meter as shows in the picture. The lighting circuit and upstairs...
  5. consumer unit.jpg

    consumer unit.jpg

    • King84
    • Media item
    • Comments: 0
    • Category: Electrical Videos
  6. K

    How do you secure pattress in a wall containing batten

    Thank you guys , much appreciated
  7. K

    How do you secure pattress in a wall containing batten

    Hi I am working on a project and ran a cable down the wall for light switch but the wall is old batten style. The wall is going to be skim sometime later this week but I am curious how would the back box be sorted later on. I am not sure if dry lining box would be an option. Any help or ideas...
  8. batten wall.jpg

    batten wall.jpg

    • King84
    • Media item
    • Comments: 0
    • Category: Electrical Videos
  9. K

    Can ring circuit be bigger than 32A with bigger cable size??

    Hi everyone my questions is regarding a ring circuit wired in 2.5mm standard twin n earth with 32A MCB however my question is hypothetical if there are 2 laundry and 2 lets say tumblers so load is not suitable for the circuit and you want to upgrade but there is no space in consumer unit to...
  10. K

    Which board is subDB in this situation and which one is main

    Thank you SparkyChick for your response, much appreciated !!
  11. K

    Which board is subDB in this situation and which one is main

    Hi everyone quite new into the Inspection and testing world and still a learner and always strive to learn new things. I noticed in one property that tails coming from Meter into henley block which then feeds two consumer units. My question is when you guys do EICR do you produce two separate...
  12. K

    How do you achieve shock risk protection in TT

    Hi everyone I posed a question to my teacher when I was in Level 3 about if we do not use 30mA RCD for additional protection in TT system and use 100mA for fault protection then how do we stay protected from electrical shocks to which he said RA*IA>=50V something like this and when I said could...
  13. K

    Electrical Hob and oven dual outlet faceplate

    I am not worried about socket or hob as I know they are pretty good considering the situation but what confuses mean as I have seen plenty of ovens are also hardwired into the same cooker connection unit . so I was referring to oven's 2.5mm cable into 32A MCB would make the Iz smaller then In.
  14. K

    Electrical Hob and oven dual outlet faceplate

    Ib ≤ In ≤ Iz This is basically what I meant. If we use 2.5mm cable for oven on 32A MCB same as hob circuit Iz for the oven would become smaller then In which should be actually bigger.
  15. K

    Electrical Hob and oven dual outlet faceplate

    No I am talking about the cable. I know you are meant to follow the manufactures instructions and all that but generally even if it is a heat resistant cable but inserting 2.5mm cable into the same FCU as cooker which is fed from 32A MCB makes the current carrying capacity of the cable smaller...
  16. K

    Electrical Hob and oven dual outlet faceplate

    Hi everyone. There is something that confuses me so I hope someone could answer. There is an electrical Hob which is 7.8KW and electrical oven which is lets say manufacture instruction says 13A so somwhere around 2.0KWs. If you apply diversity on Hob it comes to somwhere around 17A and I know...
  17. K

    EICR Coding challenge for trainees.

    Picture 2 does not have blank plates hence doesnt comply with Ip2x so object of 12.5mm would be able to penetrate and could have access to live parts so C2 Picture 3 as outdoor socket is Ip65 but tap is too close so I am not sure as if the installation is protected with RCD so I guess C3...
  18. K

    EICR Coding challenge for trainees.

    Doesnt comply with Ip4x as object of more than 1mm should not be able to penetrate and this is way too big so C2 as its potential danger
  19. K

    Spur of external socket

    Interesting but until they do not consider this as compliance with Bs 7671 then considering above situation for feeding Shed with Fused spur RCD socket then this would be considered as departure rather then compliance.
  20. K

    Spur of external socket

    Ok thanks for clarifying

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