Follow up on the pest repeller device.
UK version, isolating transformer, flash testing.
Part 1: https://youtu.be/KxmnCeQ1ups
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https://www.youtube.com/watch?v=Rx2OKLeiTIc
Part 7 in a series on building a CNC router.
This episode covers spindle control, panel buttons, LED indicators and some of the Mach4 software configuration to make these things work.
Other videos in this series: https://www.youtube.com/playlist?list=PLVsHvs2Suqmp7di69X5mYnVeM84rij8I-
BC327 transistor datasheet: https://www.onsemi.com/pub/Collateral/BC327-D.PDF
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https://www.youtube.com/watch?v=E07-P0oafJI
Corrigendum to the 18th edition wiring regulations, BS7671.
Download here: https://electrical.theiet.org/bs-7671/
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Flameport Enterprises Ltd is a participant in the Amazon EU Associates Programme, an affiliate advertising programme designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.co.uk
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https://www.youtube.com/watch?v=9OhAfHMMoUU
A short piece of flex which shows unusual behaviour when tested at 500 volts. Also includes a demonstration of cable capacitance when testing insulation resistance.
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https://www.youtube.com/watch?v=7p5kUMVRhYk
Connecting Cat5e cable to Cat5e wall sockets, usually called RJ45 even though that is not the correct name.
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https://www.youtube.com/watch?v=5kjcq_P01pM
Comparing MK Logic Plus white accessories to MK Essentials white accessories.
Essentials is described as being a lower cost option. They are made from polycarbonate rather than UF, have a 'screwless' appearance, have completely different terminal arrangements and are made in China rather than the UK.
The light switch will not fit into a 16mm box, and will only just fit into a 25mm one.
The socket has a single pole switch and the cheaper shutter mechanism operated by the earth pin only.
The FCU has a front flex outlet rather than on the edge, and in this example the fuse holder was rather difficult to open. The FCU requires a minimum box depth of 35mm.
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https://www.youtube.com/watch?v=osbADF3sOHU
Applying a gas flame to some Everflex intumescent fire sealant.
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https://www.youtube.com/watch?v=eRew1qiGv5Q
Downlights or recessed lights are available as fire rated or not, separate fire hoods can be obtained, and covers to provide suitable space over lights so that insulation can be installed above them.
Fire rated lights and fire hoods are designed to prevent a fire in the room passing through the light fitting into the space above.
Insulation guards or covers keep loft insulation away from light fittings to prevent them overheating.
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Website: http://xo4.uk/?fRE
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https://www.youtube.com/watch?v=a7r59TpuBeo
Wiring for frost thermostats on S plan, Y plan and combination boiler heating systems. This uses two thermostats in series, the first senses air temperature and the second the temperature of the return heating pipe, so that if activated, the boiler only stays on long enough for the pipes to be heated, rather than heating the whole building.
Many boilers have internal frost protection, but that only senses temperature within the boiler, which may not be sufficient if the boiler is located in a warmer part of the building such as in an upstairs room.
► Other videos in this series
S Plan: https://www.youtube.com/watch?v=V9rN5D-wQIc
Y Plan: https://www.youtube.com/watch?v=B7eAiiKUk2Y
Complete list of all heating videos: https://www.youtube.com/playlist?list=PLVsHvs2Suqmr5HtxgbInR4bXmH0kLseWc
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https://www.youtube.com/watch?v=e4MX1igMsjg