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whats on the other side of the wall...any sockets ?

exactly... why do we bond external pipe work or in this case are there two main earthing arraignments, one with a spark inducing voltage and one without.

if you look at the earthing arrangement there are two different connections, one from the sheath and one from a block... are you seeing a high resistance / lower resistance earth path as you state that sparks appear from the sheath connection. If you are getting a voltage big enough to spark the...

or a griddle plate as its known..... you should try getting then up to date... https://girnarmachine.com/product/automatic-roti-making-machines/ or if its lower scale something like ...

I suggest you have a chat with heston of the fat duck... his kitchens are induction, as are the Savoy and Ritz... Its all about the infrastructure that is in place.

Tosh. Heat is heat is heat.... the reason why a lot of kitchens use them is reliability... gas is not better at cooking food, oooh the induction hob has gone off call a sparky, the flame has gone out, strike a match.

Yep, but its DC which is injected which will be equal to 1.4 times AC as AC has a full wave Peak,0,-Peak... so dependant on your kit at 1 times say 30Ma you will be getting 42 mA at the rcd and the limiting factor is the solenoid/relay.. how long will that take to fire... less than 40mS...once...

No, if the second is connected somehow... joined on same N bar then, or there is a shared neutral out on the circuits, lighting for example. As for the RCD operating time and the difference they will always vary in their response time, no two identical units will work at the same speed, brand...

Its tripping or to be more precise its in to process of tripping once that process starts ie is over the 30mA required then its not stopping, the variation is down to the manufacturing tolerance of the RCD trigger, ie the solenoid and components, after all its near instant disconnection not...

Or the electrician could have popped the RCD N into the non protected N bar....

That's just bonkers and grasping at straws . 1. see for what you can do : https://www.planningportal.co.uk/permission/common-projects/paving-your-front-garden/planning-permission and 2 : the only guidance is for 30cm above the ground level, which it is not so is considered to be withing PP rights.

Look I know its brutal, but people have a right to do what they want on their property...before you had what 2ft of planting you now have 2ft of paving...there are no safety issues and nobody will take your side from any agency. If you are unhappy you need to go and talk to your neighbour, but...

Its cast iron burner group, if its not been serviced then a partial blockage of the burners by debris.

Why, there is no planning issue whatsoever, the only regard to planning will be the treatment of the street scene, eg open front gardens or no fences as its known, that is the limit for planning on hard landscaping.

In this case yes... we are connecting to THEIR network....so its up to them to say what the facts are... as they have the right to terminate your connection...

As i pointed out to you John.. we have an ageing network, just how old are most connections, mine is date stamped 1961 and until we put in an EV charger the service fuse had never been changed.....Regulations take account of reality not electrical theory.

Rules on Max Length Of Meter Tails Regulations regarding the maximum length of meter tails can vary and are often specified by the Distribution Network Operators (DNOs) rather than following the standards outlined in BS7671. It’s essential to be aware of these DNO-specific requirements, as they...

Oh by the way, its the DNO that has made the assumption on meter tail length and the IET has written is regulation with regard to their instruction. They made it for a variety of reasons apparently, ageing service heads, non reliance on the correct fuse in the service head being fitted which...

As I keep pointing out we do not know what assumptions they made or who asked them to make use of an assumption they provided. Or if they made a mistake....reverse engineering it is not cool. I agree with Morq, regulations are just that either must or should, if it says you must then you do and...

No, they are separate but the could be together, as I have no knowledge of what assumptions they made.. Does 4m at 100 amps max cross a line somewhere where 2m does not in terms of bends, are they taking it that 2m has limited bend potential... They could be taking it that a cable greater than...