Recent content by atm84

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    External Lighting controls. Manual on, photocell off

    Im maybe overtinking it. Think a combined PIR/Photocell would it a good solution
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    External Lighting controls. Manual on, photocell off

    Thank you for the suggestions. I don't want them to rely on them switching them off on the way back. Likely hood is they will forget. haha If I went with the manual switch on, photocell off can that be done. I have only ever used manual on, auto off with an absence detector and they have...
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    External Lighting controls. Manual on, photocell off

    That what I thought originally. Can you recommend any quality ones. I was maybe overthinking it too much with a photocell etc
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    External Lighting controls. Manual on, photocell off

    A client wants some external lights to illuminate a pathway around a building at night to access the electrical switchroom, which is accessed via an external door. (The building is a 24hr building) One thought was to install a switch inside the building and then if the lights are accidentally...
    • atm84
    • Thread
    • controls external lighting lights manual photocell switch
    • Replies: 7
    • Forum: UK Electrical Forum
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    Dimmable retractive switch

    Does anyone know if there are any manufactures out there that do a brushed steel (or similar) centre pivot retractive light switch that can be used to dim led downlights. Sent from my iPhone using Tapatalk
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    Surge Protection Device

    If lightning side strikes was low then why would a Lightning Protection System be installed Sent from my iPhone using Tapatalk
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    Surge Protection Device

    Can anyone tell me if its a requirement to install a surge protection device to a sub Distribution Board if it serves external equipment ie a roof mounted extract fan even though a SPD is located on the Main Panel? Sent from my iPhone using Tapatalk
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    17th edition 2008 vs 17th edition 2015 VD query

    Thanks for the replies guys. It's the difference between 17th 2008 and 17th 2008 (2015) Sent from my iPhone using Tapatalk
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    17th edition 2008 vs 17th edition 2015 VD query

    Does anyone know if the mv/A/m values for cables have changed since 17th edition came out? I did a cable calculation back in 2009 on Amtech Prodesign and when I resisted the calculation and opened it in Amtech 2015 version the VD had reduced. Albeit marginally however no other cables on the...
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    fcu by kitchen sink

    Haha I know what you mean. The way everyone goes around on here you expect everyone speaking true IET language on site
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    fcu by kitchen sink

    Stick it on an rcd and use an ip rated FCU then everyone will be happy. On another note; doesn't anyone called them switched fused spurs anymore? Sent from my iPhone using Tapatalk
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    fcu by kitchen sink

    As Murdoch states in post 5 bs7671 doesn't state a min distance from a sink. Although guidance documents such as Ekectricians guide to the building regs suggest 300mm. At the end of the day that is only guidance and you need to be pragmatic using your professional judgement Sent from my...
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    Using pipe work to bond to incoming water

    Would you? In particular when the bond is not a continuous conductor which may be liable to disconnection by other trades.
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    Using pipe work to bond to incoming water

    Because it's not in the list in section 543.2.1 Sent from my iPhone using Tapatalk
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    Using pipe work to bond to incoming water

    In that case a copper heating pipe cannot be used as a main equipotential bonding conductor Sent from my iPhone using Tapatalk

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