Відео

How that essentials light switch got through design is beyond me. What a ridiculous product! Wont even fit (properly) in a 25mm back box. Someone needs sacking! The mind boggles.

Im wondering which direction you would go away from the original earth stake. If i had a new overhead pole put in for my new supply (I'm very out in the sticks) would I be advised to head towards the pole which happens to be in the same direction of an overhead transformer for me and a neighbour on the next farm. The new supply is PME but the estimator guy said to put an earth stake in with a 25mm CPC connection to it. Never had that request before in my youger days of new house etc.

HELLO, how many double sockets can i fit on a 2.5 cable radial, thanks

John can you explain why you used the resistance calculating how much current was used . 2300w / 230v = 10amp but going by the resistance it’s 9.58 amps . Please explain .

I hope that all's well John. Having learned so much from your UA-cam content I have my fingers crossed that it won't be too long before we hear from you again - your clear explanations and dry humour are much missed! Best wishes from just down the road in Dorchester.

Brilliant, John, but also quite scary... what would be the answer, then, if you're wiring up some external containers to a PME supply? Put in an earth stake? Thanks.

Every house i wired, always drove earth rods. 3 core going out to the cutout, and youd be connected into the earth block, which is basically the neutral block there. Theres an inspection box for the earth rod, which is normally placed under the meter cabinet externally.

Someone playing with my socket I can hear the cracking when I am in my room most times

It just shows how casual people are. 500 volts? Your hand was millimetres away from it. I would want at least 500mm distance

Thank you Sir.

Think i got it second time round was looking at ring ,,thanks

Hi j, really like your channel its very informative, just come across this older vidio of yours which i do remember, could you explain how the newer iet brown book now reference's this same model regarding the 3036 fuse . They've changed the book because of your teaching ,,brill!!

If you are in a shower area my existing pull cord switches a fan, Light and shower pump from the same switch. Is a special load carry switch necessary if you fitted juts outside shower room door? Will they carry the load? Should a relay be employed though; it still has to take a load ...so i am confused? yes your videos are a carming releaf from a importand but dry subject...thanks.

Very good way of explaining this.

Afternoon JW. Just purchased a 4 year old new build. It has an EV charger installed using 2.5mm T&A, with a 25A MCB on the consumer unit. Charger has been capped to 25A using dip switches inside the unit. When I plug my car in, as expected it’s capped at 25A which is fast enough for me. Is this OK or should I be expecting a house fire? 😅

Wow what a stupid design, thanks for sharing!

John, so if I have a steel frame pergola in a garden that has lights and heaters attached and wired through the frame it would need bonding accordingly as well then?

Can you fit a rcbo in a panel protected by a RCD?

Excellent description and thanks for the practical way of telling between them.

Diversity Perfectly explained !

Dear John, have you quit doing UA-cam videos....

Like going back to school 😊

he did not explain how he connected the wires...i mean what i see is a plug with the 2 wires touching, that's a short circuit

The lighting circuit isn't RADIAL, they used to be. The lighting circuit is a Ring, you actually drew a ring circuit, ie the main conductor left the consumer unit and returned to it. A radial is where power is supplied to each device and doesn't have a return. Ps blue=black, brown=red. Unfortunately electricians use a red switch wire to connect to live. If they used a black switch wire to connect to the 'ring' live it would be obvious it was a switch wire. No extra bits of sheathing required.

J.W. !!!!!!!!!!!!!!!!! Crackin video mate, but slow down and enunciate a little clearer, Sir, Thank You 🙄

Great video - clear and useful. Thx

ill have crabbtree dist boargs on site. Looking for blanking plates

hi guys, i have a question. how does SPD protect your electrical appliances? when a high voltage occurs and SPD detects it, will your circuits be isolated?

Hi John, looking at your inverter it has a grounding stud, is this a ground for the DC then? Kind regards

Pulled a few of those in my time as a firefighter, to isolate supply when BA crews are searching in a building.

Are the building regs statutory or not?

Hi, good job, can you tell me were i can get new brushes? Thank you.

Is the Americium a solid or an encapsulated powder? Any risk of a powerful compressed airblast accidentally dispersing it?

Thank you John for another very clearly presented topic. With a TT system in the main house would it only be beneficial to connect the 10mm 3core SWA cable (cpc) to the outbuilding (with water and gas services) consumer unit MET where it has its own separate earth rod. I would imagine this setup, rather than keeping the two completely separate as you presented, is beneficial in trying to keep the Ra to a minimum. Or is it a pointlessly small benefit since you are relying on RCD for earth fault protection? I hope that makes sense? Many thanks for my crazy brain working overtime.

all my questions answered in ne video, great thank you .

Don't be afraid john

extreemly long video for a simple concept

What is the significance of the different colors of the clades?

Thanks. I tried these tests got 50 ohms on one reading. The problem for me wasn't that the heater wasn't working but the reset kept activating. The water did seem very hot. Broken stat?

hi john -thanks for explaining how this valve actually works -one question -will the valve move independenly of other contacts -ie will the valve still move from say the heating only position to the hot water only position even if the hot water thermostat is not calling for additional heat or will it stay in the hot water only position until the thermostat contact is triggered-best regatds graham

Thanks for your amazing videos. Did you ever consider reading the shipping forecast? I love your style.

and what is the point of terminating an earth to that fitting….? ( apart from the ‘regs’ say so!)

Awsome john thankyou😊😊

Thank you sir.

John - Top G

John i haven't had the pleasure to see all your vids. I was wondering if you could post or repost a vid on you fixing a 12v car battery charger or a 120v electric farm fencer. Thanks. Your vids are interesting i enjoy them.

Excellent explanation from real world experience.

It's got the right brand name, it might make you see stars! Wouldn't pass UK safety regulations.

In the USA we use Edison type lamp holders rather than bayonets. The Edison lamps use a screw thread system instead of push and twist

I am living in the USA and we measure cord thickness in the form of gauge rather than millimeter. In the USA the thickness of the flex would be 14 gauge which in the UK is 1 millimeter