Just a bit of future proofing but you've got a fair point. Cat 5 is 1gbs while cat6 can do 10gbs but not many domestic user are going to need that kind of speed.
Sorry some reason I can't edit my post those sockets wouldn't work with normal phone as I described. They would work if you set up a VOIP network though.
For a patch panel you want something like with enough ports for network. For example
deleyCON CAT6a 12-Port Network Panel Patch Panel Distributor Field Desktop & Wall Mounting Shielded 12x RJ45 Ports TIA568A TIA568B - Black
View...
Personally I would run cat 6 ethernet cable all run to central point of your choosing. You can then terminate the cat 6 into either a j45 socket for network or telephone plate.
Then use a patch panel to wire up as desired.
Then you've got the option for networking or setting up for telephone.
Accidents happen its how you deal with them that matters
If you can get the replacement tile. It's a simple enough to repair, plenty of vids on good old YouTube but probably bets to employ a tiler to do it tbh.
If you can't find the tile and it get really expensive then that why liability...
In addition to the electricity at work act, the H&S at work act applies. He should have a written risk assessment and method statement for any more he's carrying.
Also using a ladder he should have proper training for.
The school will be struggling for money if/when he has accident and he...
Just as long as the pervious sparkie wasn't you I wouldn't worry too much about it.
But best to come up with some. Option for the customer and prices before you break the news.
Arhh seeing as you mention hacking, Ukraine got very lucky
https://www.google.com/amp/s/www.wired.com/2016/03/inside-cunning-unprecedented-hack-ukraines-power-grid/amp
The gas guys have a bit more legal backing to isolate supplies than sparkies do.
Leave breaker off affected circuits/hole board advise customers preferably in writing and walk away.
Might also be steam setting off fire alarms, also given that I know exactly how daft students can be having been one myself in the past some previous incidents
My guess without know year is around 1000watts in total but that to supply power to the vans electrical system.
What exactly are you trying to achieve?
I think the logical thing is get a sparkie in. From what I can make out from that drawing there's a few fundamental mistakes that Dont make sense. Also you don't need the dawn to dusk sensor as the pir will have built in oned
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