Fantastic refresher Dave, a lot can be forgoten over time. Well done!

Love your channel, sometimes overtime we can forget stuff so to come on here and refresh is Brilliant..Wish you were around years ago..!!

Brilliant Dave.

You are just making it easy...

Hi Dave, your videos are an amazing resource to anyone like myself learning thank you so much. I am amazed your subscriber numbers are not much higher, I guess quite a lot of people don't know about your channel yet so I will be spreading the word around as much as possible. One question please, in your example of the outside tap at 3.30 if someone touches the tap to turn it on doesn't the person then become a path to earth? So shouldn't the pipe still be bonded? Many thanks Chris.

Hi David, will you be doing videos on fault finding. Like the rcd tripping fault finding and repair. Thanks

Dave, what if through various methods such as a gas boiler (cpc from spur), shower (cpc) introduce an earth to the water service through the cpc of the electrical system and where there is no rcd protection should the main water service pipe then be bonded?

Nice one dave 👍 I’ve looked under the sink in kitchen where there is the water bond connection but noticed after the connection strap there’s about an inch of copper then it goes back to plastic fittings and pipe for abit then back to a small amount of copper for taps , surely there should be a link from the bond connection to where there is abit of copper for taps or would it not make a difference 🤔 pretty certain it’s all copper right back to “earth” where the water bond is connected , cheers dave 👍👍

Thanks for the video. As an adult learner I struggle with the theory of Main Bonding and Equipotential Bonding. At 4.29 you say "we must bond both sections of it". Does that mean a separate 10mm earth bond for each leg of the visible copper back to the board?

With the pipes that disappear, why not do a long lead insulation resistance test? anything less than 22kOhms won't need bonding assuming a safe fault current of 10mA.

Just trying to get my head around this subject (not an electrician) and have a question. If it's metal pipes touching the earth that can cause a problem and need bonding, then do metal pipes touching brickwork not cause the same problem? The bricks are clay and are also in contact with the earth so are they not in effect kind of like a raised piece of the ground touching the pipes?

Hi. Thx for videos. Can you confirm something for me? My house has plastic water to stopcock but mainly metal throughout. It may be earthed by way of boiler cpc which I guess is connected to all copper pipes throughout via brass mono taps, certainly boiler, hot water, ch pipes and bathroom radiator will be connected cold mat not be. House is PME and currently 10mm bond is in place. However in 18th I don’t have to bond as plastic incomer. I appreciate bonding is different than earthing but if the cold water pipe doesn’t have connection to heating and hot water pipes say because plastic tap connectors are used, a cable fault in service duct could make pipe live. When I touch outside tap (cold water) I would then make the circuit for rcd to trip. In this scenario if the main bonding connector was there it would be acting as an earth for the cable fault and rcd would trip at time fault occurred. Wouldn’t it be prudent to earth ( or is it. bond?) all long metal pipes that could become live at some point by cable faults, say in service ducts. I appreciate this is highly unlikely scenario but just wondered what your thoughts were. In this scenario cold water pipes are lumps of metal, not extraneous conductive or exposed conductive parts

You bond for static electricity including lightning. I would bond at house point of entry with a 6” piece of copper pipe. This will assure lightning won’t enter on the water lines. Any analysis available for or against for lightning reasonings?

Iv heard that metal frames on patio doors should be bonded. Is that a myrh?

Become earthy versus bathroom mirror. Even i can remember that. Thanks. 😊

my house has the incoming water in plastic to the main stop tap then the house is in 15 mm copper? are you saying it doesnt need a 10mm main bond then

I've a recommended my colleagues...

It isn't clear to me whether current regulations should be interpreted as "it is optional to bond copper pipes if the incoming water supply is in plastic pipes" OR "you MUST NOT bond copper pipes if the incoming water supply is in plastic pipes". What do others think please?

If earth bonding is so important now, why was it not done years ago? The science of equipotential is hardly anything new. My 60yr old house has no bonding atall to any of the all metal pipework inc the lead incoming main & gas supply line to the boiler (installed in 1970s).