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Discuss Shower 8.5 on a 40mcb is it dangerous in the UK Electrical Forum area at ElectriciansForums.net

Definitely says he is an electrician, his web site says he does all types of work not just domestic, but industrial and commercial.
States part P and niceic approved.

Ok, I have had some run ins with Currys installation guys before telling the customer something is unsafe when it is perfectly fine, wondered if that was the case here.

Giving they guy the benefit of the doubt.

I can only assume the cable run is concealed so he is assuming the cable is covered in thermal insulation and adjusting the current carrying capacity accordingly.

Why he would make that assumption and proceed to tell the tenant it is unsafe, whilst attending to connect a cooker, is another question in itself.

Either that or he isn't aware that CCC is dependant on the conditions in which the cable is run, and he should know better.
 
without thinking of 4 pages (soon to be 5) of consequences on a thread on an electrical forum. :)
I think its no secret that sparkies like to slag each other off ;), and this place exasperates that quite a bit I suppose. Its very easy for it to turn into a circle jerk when the guy in question is not here to defend himself.
 
Well there is no such thing as part P approved, so that is another thing he has got wrong.

Part P is a building regulation, that is all.

I here that a lot on here. So what is BS7671?
 
There is no such thing as being part P registered either. Part P is a building regulation, nothing more.

We know that, but it is often used to mean registered with an approved body and able to sign notifiable jobs off.
 
There is no such thing as being part P registered either. Part P is a building regulation, nothing more.

We all know what is meant my Part P registered/qualified... Whatever you want to call it. Why are some people sooo against the sayings.
As before, BS7671 is just a bunch of regs.. Why do we not slag off the quals for that....??
 
We all know what is meant my Part P registered/qualified...

I don't. Because there is no such thing. It shows ignorance of the electrician that uses it. Would put me off using him/her wondering what else he/her was ignorant about.

As this thread clearly demonstrates the spark clearly has no clue about fusing.
 
I don't. Because there is no such thing. It shows ignorance of the electrician that uses it. Would put me off using him/her wondering what else he/her was ignorant about.

As this thread clearly demonstrates the spark clearly has no clue about fusing.
Do you have some work that needs doing, some plug tops installed perhaps?
Could get the Part P Qualified Spark to look at installing some LED Bulbs as well when he/she is there.
 
Do you have some work that needs doing, some plug tops installed perhaps?
Could get the Part P Qualified Spark to look at installing some LED Bulbs as well when he/she is there.

All my plugs have their tops on.
As I said there is NO SUCH THING as a part P qualified spark.
Bulbs does not need an upper case letter in the middle of a sentence.

Your idea of taking the *iss is not amusing.
 
If you think the term 'Part P Registered' is bunkum, take a look at these search results:-

part p registered - Google Search - https://www.google.com/search?q=part+p+registered&client=firefox-b&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjk_ri9_ezgAhUSVBUIHeISC4sQ_AUIDigB&biw=1920&bih=903

Part P Registered is a phrase from the schemes and is used it seems to promote sparks who are registered with them who can carry out notifications. After all, Part P is the section of the building regs that requires us to notify, so the term 'Part P Registered' get's used to indicate a particular company can notify.

The Part P exam is C+G 2393, with the proper title being something like 'Building Regulations for Electricians' or words to that effect. But in common parlance it often gets called 'The Part P exam'.
 
It is NOT dangerous, it is correct.

What would be dangerous is putting in a 32a MCB as it could overheat.
Why would a 32A cause it to over heat and not a 40A as fitted. Surely the issue is whether the cable can take the current? If this is running at over 32A and the 6mm can take the current based on length and installation 40A must be correct? 32A wouldn’t cause overheat it would just trip.
 
It is NOT dangerous, it is correct.

What would be dangerous is putting in a 32a MCB as it could overheat.
Why would a 32A cause it to over heat and not a 40A as fitted. Surely the issue is whether the cable can take the current? If this is running at over 32A and the 6mm can take the current based on length and installation 40A must be correct? 32A MCB wouldn’t cause cable to overheat it would just trip.
 
You are right, the cable loading is still the same. It's the 32A mcb that will likely be running a bit warmer than a 40A mcb, with that 35A load. Neither MCBs will trip with that load, unless teenagers are involved.
 
if teenage daughters are involved, I'd fit a 20A. soon get the buggers out of the shower when it goes freezing cold after 2 minutes.
 
If you think the term 'Part P Registered' is bunkum, take a look at these search results:-

part p registered - Google Search - https://www.google.com/search?q=part+p+registered&client=firefox-b&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjk_ri9_ezgAhUSVBUIHeISC4sQ_AUIDigB&biw=1920&bih=903

Part P Registered is a phrase from the schemes and is used it seems to promote sparks who are registered with them who can carry out notifications. After all, Part P is the section of the building regs that requires us to notify, so the term 'Part P Registered' get's used to indicate a particular company can notify.

The Part P exam is C+G 2393, with the proper title being something like 'Building Regulations for Electricians' or words to that effect. But in common parlance it often gets called 'The Part P exam'.

And BS1363 plugs have been called plug tops as far back as I can remember.

I started calling light bulbs - lamps, after comments on here by members But then my customers thought I was referring to luminaires, which they call light fittings; so I went back to using he term light bulbs. :)
 
they not plug tops. theys plugs. a plug goes into a socket. a plug top covers the live parts (in a plug). we don't refer to sockets as plug bottoms.:D:D:D.

Plugs were on the walls, as well you know 'cos of your age. They also had plugs on the ends of appliances leads. Thats why Joe public called em plugs & plug tops. :rolleyes:
 
@GeorgeCooke ,

Whilst I can acknowledge there are times when the correct terminology is an absolute must (such as the difference between r1 and R1 for example), the vast majority of the time, it doesn't matter that the terminology is not 100% correct.

If you say transformer to a client they know it's a device that converts the mains into something else. They don't need to know that in fact it's an electronic switch mode power supply unit. Say that to them and they'll look at you as though you're from outer space.

Likewise... plug and plug top (meaning the thing on the wall and the thing you shove in it), bulb (meaning the thing in a lamp that makes the light), fuse (meaning the circuit breaker in the fuse box (meaning the consumer unit) that they have to switch back on if it trips). Just a few examples.

As a consequence of having to use client speak, it is inevitable that we will use these terms here and guess what... the world is still turning.

If the only thing you can offer to a thread is to critique someone's use of language when the vast majority of people here know what the others are saying, then I'd suggest you simply skip the thread and ignore it. As I said above, there are times when it is critical the correct terms are used, but for everyday objects such as light bulbs, plugs etc. it's not the end of the world especially when the vast majority of people will understand what is being said.

Whilst this constant nit picking gives some of us comedy material from time to time, it is getting to be somewhat tiresome and can result in the thread being de-railed somewhat. So, as I've said, if you have nothing more constructive to add to a thread other than a critique of the terminology being used, move along to a different thread where you can contribute in a more constructive manner.
 
I've read that. You are entitled to your opinion. I'm entitled to mine.

But, I repeat:

Show me a link to a Part P registration certificate that a sparks claiming Part P registered could show me.
 
I do actually have a certificate of approval from NAPIT that states I am approved for electrical installation work in dwellings (A1.1) (Including Part P).

So it could be argued that I am 'Part P Approved' or 'Part P Certified'.

But again, I think most people understand that when someone says this, what that translates to is 'They are members of a competent persons scheme and are able to notify works in accordance with Approved Document P'... it's just easier to say Part P certified, of Part P approved or something akin to that.
 
Hi guys

My tenant just had an electrician in to connect her cooker and has told her that the shower is dangerous and not to use it because it has a 40 mcb in the consumer unit and it should be a 32.
The cable is 6mm and the shower is 8.5kw.

Can you advise me please
Thank you in anticipation
I have exactly the same in my house, since upgrading my shower 7 years ago, with no problems, and will be fitting another to the same specification soon. One factor no-one has mentioned is circuit length. I believe a maximum of 10m (33') before a larger cable is required. If voltage at supply is greater than 230v (it usually is), longer could be used. I would verify voltage drop and RCD trip time to be sure.
 
Chris, this is the correct sized MCB for a 8.5kW shower, a 32amp device would be running at a slight overcurrent and although it would take a long time to trip it's not permitted in the regulations. I can't stand people who find fault with work unrelated to what they're doing - especially when they're spouting BS. :)
I confess that finding faults in electrical installations has been a favourite pass-time of mine for over 30 years! I agree entirely with the BS though: I've heard some lame excuses, and had my work criticised by many who should know better. It is a nuisance having to explain or pull out the Regs to show them. I try to always be open to constructive criticism, but no-one needs the BS, and I don't need the opinion of someone who born 20 years after I started working!
 
I confess that finding faults in electrical installations has been a favourite pass-time of mine for over 30 years! I agree entirely with the BS though: I've heard some lame excuses, and had my work criticised by many who should know better. It is a nuisance having to explain or pull out the Regs to show them. I try to always be open to constructive criticism, but no-one needs the BS, and I don't need the opinion of someone who born 20 years after I started working!

As an update I have now had a full inspection done took 4 hours and everything passed OK. thanks for all the replies.
 

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