Connecting a fan to shower power

[tirfor]

Hi all, a newbie requiring advice.
I have been asked to fit a fan within a bathroom with the following constraints:
1. fan needs to work in daylight when light is off.
2. ideally on a timer so steam can be removed after showering.
3. humidistat not to be used as past units did not work to well.
4. be able to use 3a fans.
5. cheap as poss so no expensive fans or expensive pir's

So i have thought it would be best to connect the fan to the showers power.

My question is:
1. Is this ok to do or is there a better idea?
2. A timed fan requires a live and switched live, so is a fused spur available with twin fuses?
3. My idea is to tap into the supply side of the shower switch to provide the live feed and then tap into the load side of the shower switch to provide the switched live. Both lives will go to separate fused spurs (located in assessable attic) then both spurs will be connected to an isolation switch (in wall be bathroom door) then of to the fan. Is this ok or am i missing something?

Cheers for your help.

 

[overskilled]

Beer is something I've tried repeatedly and cannot acquire a taste for...rum and whisky on the other hand...is more my thing...along with the occassional cider...

 

[ChrisElectrical88]

JD if I am drinking shorts, single barrel mind!

 

[MDJ]

We drink Beer down here, I have to admit though that I am partial to a Cider in the summer, I like dry cider, plenty of Cider farms around here and Somerset which is 45 mins away, Rich's farmhouse cider is nice, in fact very nice I like a flagon of sweet mixed with the dry, it goes down a treat

 

[ChrisElectrical88]

What's that cider called they all drink in Cornwall, something to do with a snake?

 

[Toonlad]

Charge 10 for effect,, and a shameful bump lmao

 

[Knobhead]

I’ve had to stop drinking beer. My local has a good, ever changing range of local real ales but I can’t drink them. I used to but my health forced the change to Bloody Mary’s.

My recipe:
2 shots Vodka
3 to 6 drops Tabasco
Good shake of White Pepper to taste
Celery Salt to taste
Tomato juice
No Worcestershire sauce!

In a ½ pint tumbler, add the Tabasco, pepper and celery salt. Fill with ice, add the vodka then the tomato juice to fill the glass. With the ingredients in first they don’t float on the top but make sure you stir it first because if you drink it with a straw, a mouthful of pepper and Tabasco is one hell of a wake up!

The barmaid, Dawn, can do the drink perfectly. The landlord just puts the ingredients on the bar for me to work the magic. There is no correct way to make the drink. I went in to another local pub and the barman made the drink how he thought should be made, he then went on to lecture me on the subject. He ended up wearing it.

The threads go totally off topic, I’ll just push it a bit further over the edge.

 

[MDJ]

What's that cider called they all drink in Cornwall, something to do with a snake?

Snake bite, lager mixed with cider, not cornwall but everywhere to my knowledge.

 

[DPG]

Barnsley cocktail: Beer, mix with more beer. Add beer to taste. Daz

 

[mechelec]

It has been interesting reading this thread. I have taken the supply for my fan from the shower circuit. It is 2.5 mm t and e taken from the supply side of the 45 A switch. As far as I'm concerned it is fine. RCD protected circuit, reduction in CSA yes but less than 3 meters from point of reduction, not subject to overload as it is to a FCU fused at 3A as per reg 434.2.1 been like it for years. I can't see a problem with it. In busbar chambers the tap off cables to switch fuses are never usually rated to the OCPD for the BB supply. Same thing really. It is common in many control panels to find small control wiring taken from open switch fuses of greater rating than the cable current carrying capacity again because there is OCPD on the load end of the wiring.

I am not a DIYer or Electrical Trainee so let's have your comments.

 

[mechelec]

WTF just seen you have all lost interest in this subject.

 

[KAS1]

All I can say is there's some rough sparks about these days, I'd sack the first chancer to do that on a domestic shower install. Lets close this thread now..........

 

[Geordie Spark]

WTF just seen you have all lost interest in this subject.

What was the subject??

 

[mechelec]

All I can say is there's some rough sparks about these days, I'd sack the first chancer to do that on a domestic shower install. Lets close this thread now..........

Please enlighten me then as you are clearly an electrical genius. Oh and please give regulations and sound electrical reasons for it not to be done. Don't just say it's rough let's have some indication you actually know why it shouldn't be done and are not just following the pack.

 

[DPG]

Oooh, it's going to get interesting now. Daz

 

[KAS1]

I can feel a ban coming on lol Why not wire a clock point or maybe a 5amp socket from your shower circuit, the possibilities are endless FFS common be real