using wifi plugs for heating control..regs question from a Gas man!.

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so a few years ago, an out of work programmer and I sketched a twin channel programmer that had no screen, just 2 sliders with settings, off, internet and on/override.
We never got past the beer mat stage..
So , Ive wired my heating and hot water to 2, ''TAPO" wif fi plugs, £7.50 each.. Ive been using it for a few weeks and it totally ticks all boxes, schedules, rules, timers, one touch actions, etc..
To think that it replaced a honeywell 2 channel programmer that cost nearly £100!!

How can this be done within the regs????? it only works with S plan , as there is no 'hw off ' available from plug.
The way I see it is there could be 2 ways, separate and labelled circuits, the wifiplugs feeding just the motor and neutral, with the pair of switch wires going to 3a boiler supply, but this leaves a motorised valve with 2 points of isolation. Or, as I have , a double socket wired to the 3a boiler supply and labelled, '3a boiler controls only'

Are either of these even some way to satisfying regs!?? remember, not the code of practice, but the actual regs and their wording..

thanks.
Happy Christmas!!
 
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The very iffy bit is the 2 plugs- if 1 plug is disconnected while the other one is live, do you create a widowmaker (live pin on the loose plug).
Supplying 1 device from 2 supplies is always dodgy even without the widowmaker option- if you enclosed the 2 Tados and their sockets in an adaptable box with a screw-on lid and some labelling it would comply.
 
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514.10 Warning notice: voltage
514.10.1 Every item of equipment or enclosure within which a nominal voltage exceeding 230 volts to earth
exists and where the presence of such a voltage would not normally be expected, shall be so arranged that before
access is gained to a live part, a warning of the maximum voltage to earth present is clearly visible.
514.11 Warning notice: isolation
514.11.1 A notice of such durable material as to be likely to remain easily legible throughout the life of the
installation shall be fixed in each position where there are live parts which are not capable of being isolated by
a single device. The location of each disconnector (isolator) shall be indicated unless there is no possibility of
confusion.

464 SWITCHING OFF FOR MECHANICAL MAINTENANCE
464.1 Means for switching off shall be provided where mechanical maintenance may involve a risk of
physical injury.
The switching off shall cause the disconnection of all live conductors, except as provided in Regulation 461.2, by a
device suitable for isolation.
NOTE 1: Electrically powered mechanical equipment may include rotating machines as well as heating elements and
electromagnetic equipment.
NOTE 2: Systems powered by other means, e.g. pneumatic, hydraulic or steam, are not covered by these regulations. In such
cases, switching off any associated supply of electricity may not be a sufficient measure.
NOTE 3: Where electrically powered equipment is within the scope of BS EN 60204, the requirements for switching off for
mechanical maintenance of that standard apply.
464.2 Suitable means shall be provided to prevent electrically powered equipment from inadvertently or
unintentionally reactivating during mechanical maintenance, unless the means of switching off is continuously
under the control of any person performing such maintenance.
 
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thanks, something to look over, @davelx , keeep trawling amazon, one day they are £19.99. next day they are £15 for 2!! bought the last 2 last week.
@oldbutnotdead , thanks for that, It was always a worry of mine, BUT, having looked carefully at wiring diagram, 2 port valves are wired so that the switched live, the one that comes via plug, is actually a 'dead end', it feeds the motor only, the energised motor hitting microswitch then connects a totally separate pair of switch wires, so there is no way that the pin could ever be live??
@sparxxxx , thanks for the pasting, the actual regs, !! x
 
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Fair enough. Where does the supply into the microswitches come from?- again you may be into multiple points of isolation
 
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Notwithstanding what others have said regarding safe means of isolation, use the HW wi-fi switch to energise a 5A relay with changeover contacts, thus creating your 'HW OFF or satisfied' terminal.
 
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Obviously you cannot explain or justify your claim, best you just stick to personal insults

What personal insults????

What can I say that you would understand or not take as a personal insult.

Its not my claim, that is what the reg says, not my words, the IET's words. I thought that was obvious - to anyone not looking for an argument.
 
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Are either of these even some way to satisfying Regs!?? remember, not the code of practice, but the actual regs and their wording..


514.10 Warning notice: voltage
514.10.1 Every item of equipment or enclosure within which a nominal voltage exceeding 230 volts to earth
exists and where the presence of such a voltage would not normally be expected, shall be so arranged that before
access is gained to a live part, a warning of the maximum voltage to earth present is clearly visible.

You seem to insult most posters on here, I can clearly read Reg 514.10.1, you posted that what the OP is planning contravenes that Reg, i am asking you why it does.
But you cant seem to give a reasonable explanation.
 
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You seem to insult most posters on here, I can clearly read Reg 514.10.1, you posted that what the OP is planning contravenes that Reg, i am asking you why it does.
But you cant seem to give a reasonable explanation.

I'm laughing so much I don't know where to start, but I think understanding english is your main problem, its the only reason for your daft comments.

Who are these people that I have insulted??? disagreements are not insults in the english language

blubs said "Are either of these even some way to satisfying Regs!?? remember, not the code of practice, but the actual regs and their wording" that is what he asked for - so I pasted regs that are applicable, and thats why he thanked me. I didn't make any comment about his proposals and I didn't write the regs, I just gave him the info he asked for.

And somehow this has angered you to such an extent that you are making a complete fool of yourself.
 
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@sparxxxx

I'm not angered and your the fool, typing loads of meaningless words.
Far easier to just answer the question asked.

How is 514.10.1 applicable to Blubs post.

Do you really believe Blub intends to use his advise on a supply with Nominal voltage exceeding 230Volt to Earth

In fact can you even give me an example of where in the Uk i might actually find a supply with Nominal Voltage exceeding 230 Volt to Earth, as Yet I have never encountered one.

As said if you cannot answer the simple questions i ask then id rather you did not reply.
i wont hold my breath
 
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@sparxxxx

I'm not angered and your the fool, typing loads of meaningless words.

The words are meaningless to you because you can't understand them, and that's not my problem, that is your very big problem.

Far easier to just answer the question asked.

He asked for regs advice, so I pasted some applicable regs

How is 514.10.1 applicable to Blubs post..

That's up to him

Do you really believe Blub intends to use his advise on a supply with Nominal voltage exceeding 230Volt to Earth

He's working on methods of controls for heating systems that operate at 230v.

And now your poor grasp of english is confusing me, there is no such thing as "Nominal voltage exceeding 230Volt", I don't know what that means, but the nominal voltage is 230V it can't be anything else because it is nominal. The ACTUAL voltage can vary between 216.2 and 253, but the nominal voltage is 230.

In fact can you even give me an example of where in the Uk i might actually find a supply with Nominal Voltage exceeding 230 Volt to Earth, as Yet I have never encountered one.

I'll correct your english - when you say NOMINAL you really mean ACTUAL. The reason you have not encountered ACTUAL voltages above 230V is because you have minimal experience. My house is 240v as are millions of other houses in the UK, and that will be their voltage forever, with occasional variances due to grid switching.

As said if you cannot answer the simple questions i ask then id rather you did not reply.

Well you don't decide what I do, but I think you show some gratitude for the education I'm giving you. And the only reason this dialogue is occurring is because of your lack of english comprehension and desire to start arguments.
 
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