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Is having two low power items in this arrangement really a risk?
Nope.
Things that you should never daisy chain or even plug into a single extension:
- Toaster
- Kettle
- Portable heater
- E/V Car
- Washing machine
- Dishwasher
All those things will draw +2.4Kw during usage.
Basically think: Does this thing have a heating element or is it rated to pull power above 1Kw... if either is true, never put it in any kind of power splitting extension... and if you are just adding a single plug extension for length ensure it's rated for this kind of power.
But you're not doing that... Sonos and a WiFi node draw virtually nothing. Might not even register on a smart meter.
- Toaster
I know daisy chaining extension cables is generally frowned upon but its for length away from socket rather than adding extra devices.
I want to have a sonos speaker and a WiFi node next to each other on a shelf I've just put up. They'll be plugged into a 4 socket extention cable, which will go into another 4 socket cable, which goes into the wall.
Is having two low power items in this arrangement really a risk?