Hi there
A guy was doing some work at our building installing a power shower, and he's handmade what looks like a warning sign, in front of the isolator, like below:
https://i.ibb.co/Sv6DGfv/drawisland.png
can anyone tell me about this symbol?
does anyone recognise it? what does it mean? and is there a name for this type of electrical inner-industry short-hand?
A guy was doing some work at our building installing a power shower, and he's handmade what looks like a warning sign, in front of the isolator, like below:
https://i.ibb.co/Sv6DGfv/drawisland.png
can anyone tell me about this symbol?
does anyone recognise it? what does it mean? and is there a name for this type of electrical inner-industry short-hand?
