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  1. LmarshallSparks

    Wireless Light Switches

    Hello Sparky Overlords, Wireless switches… should we be thinking about them? Are they good enough to replace hard wired switches? Should all rewires from say 2026/27 be wireless? Or another mod con which isn’t ready and will only cause more problems? Thanks for any help in advance
  2. LmarshallSparks

    Smokes & Heat separate circuit to lighting?

    Hi everyone, I’m installing two smoke alarms and a heat alarm in a standard two-bedroom renovation. I was considering omitting RCBO protection for the smoke/heat circuits since they’re part of a safety system. Does that approach sound correct, or would it be better to integrate them into the...
  3. LmarshallSparks

    TT - Consumer Tails Protection

    Quick question, Do TT earthing systems consumer tails require RCD protection? I believe they do, but I rarely see them on short tails? Does it only apply when the tails are over three meter? Thanks for any help electrical masters 🙏
  4. LmarshallSparks

    Electrical Safety Solutions for a Property Without CPCs

    Hello All, I have a slightly different question today, I have a customer who has multiple lights without CPCs terminated, the cables completely lack a CPC, however in some rooms they have a CPC and in other rooms they do not, so yes a CPC leaves the board, but does not run to all light...
  5. LmarshallSparks

    Main Bonding with a crimped lug fixing!

    Hey All, At college, I was taught that main bonding - such as bonding to a gas pipe - must be carried out using a continuous copper conductor running directly from the Main Earthing Terminal (MET) to the pipework, with no extensions or alterations permitted. If the bonding cable is damaged or...
  6. LmarshallSparks

    UK Reflections on Transitioning from Plumbing to Electrical Work

    After working as a plumber and gas engineer for nearly 12 years, I decided two years ago to retrain as an electrician. It’s been a challenging but rewarding journey, and I’m on track to be fully qualified by May/June 2025. Along the way, I’ve come to really appreciate the differences between the...
  7. LmarshallSparks

    UK Fire Rating - Rear Knockouts @ Consumer Unit

    Hello All, I understand that when cables penetrate a fire-rated wall entering in to a consumer unit, appropriate fire-stopping measures are required to maintain the wall’s fire resistance. However, in scenarios where the consumer unit is mounted with a clearance from the wall, such that the...
  8. LmarshallSparks

    UK Why is neutral at 0 volts?

    I’m confused why neutral is at 0v (or close too) in certain situations! TN-C-S system for this example, no borrowed neutrals or faults! A simple lighting circuit! Now I can understand that when the circuit is open neutral would be at 0 volts due to it being connected to the earthing...
  9. LmarshallSparks

    Hello Sparks and Trainees 👋

    Hello All, New to forum so thought I’d introduce myself! Plumbing and heating engineer (Gas Safe) with over 10 year’s experience, I’m now retraining as an electrician, more out of interest rather than a must! So far I’m absolutely loving it working alongside a great mentor @HappyHippyDad...

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