I just went to replace a 45A pullcord for someone as it had stopped working. It's only been in a year so I assume it must have been a loose connection during installation as a couple of the connections, particularly neutrals, were very loose in the switch but fine at the board and in the shower itself.
Anyway out of curiosity I ran the shower which is 8.7kw, wired in 6mm and it draws 35 amps. So low or 'cold' - 35 amps, turn it up to the max - 35 amps. Now it's an old shower, must be going on 25 or more years old.
My question is would a modern shower behave like this i.e. constant draw or would it be lower draw on lower settings? I've never put the amp meter on one apart from this so I don't know. They only run it on medium heat so it seems mad it's drawing max amps to heat the water but like I said I've never tested it on a different shower. I'm just thinking is it worth telling them to upgrade to a modern unit as this constant draw is going to tax any isolators, connections and the cable more or is that just pure waffle?
Anyway out of curiosity I ran the shower which is 8.7kw, wired in 6mm and it draws 35 amps. So low or 'cold' - 35 amps, turn it up to the max - 35 amps. Now it's an old shower, must be going on 25 or more years old.
My question is would a modern shower behave like this i.e. constant draw or would it be lower draw on lower settings? I've never put the amp meter on one apart from this so I don't know. They only run it on medium heat so it seems mad it's drawing max amps to heat the water but like I said I've never tested it on a different shower. I'm just thinking is it worth telling them to upgrade to a modern unit as this constant draw is going to tax any isolators, connections and the cable more or is that just pure waffle?