I've always been told this was an absolute no-no and thus have adhered all my life to the rule that this should never be done.
Good. Keep it up.
However with the outlets in my current flat it's really bloody awkward to have extension leads all over the place...
Oh-Oh
...and life would be considerably easier if I could daisy chain a few together.
Ah, an easy life. When did that ever lead to trouble?
So, putting my logical head on, I cannot see the problem?
Oh well, that's it decided then!
So long as the total load across two power strips does not exceed the total power limit of the first strip, it shouldn't cause an issue?
Wrong. The maximum load of the first strip is based on the characteristics of the first strip... once you add another strip on to it you then have something different. You did say you had your logical head on, right?
Perhaps the resistance of the extra connections may cause some reduction in power limit but I imagine this is minimal on our voltage-high amperage-low power we have in the UK?
You have quite the imagination. Voltage-High/Amperage-Low? That's not unique to the UK, it's part of the laws of the Universe. It's true that voltage is indirectly proportional to current, but I've no idea what the relevance is. Using words like "perhaps" and "imagine" should be enough of an indicator that you're having a stab in the dark here, mate.
So before I go blow myself up, I am looking to install strip B, into strip A. Strip A will have one Phillips Hue bulb only and be plugged into the wall. Strip B will have my PC (750w PSU with only one GPU, I'd estimate ~400W max.), my monitor and some KEF Egg speakers. These will be plugged into strip A through a WiFi plug.
So you've convinced yourself that "So long as the total load across two power strips does not exceed the total power limit of the first strip, it shouldn't cause an issue" ... and then you've decided to stick a WiFi plug right in the middle of it all. The purpose of a WiFi plug is to be the conduit for 3 extension leads carrying various items of electrical equipment? Really?
Am I stupid?
Probably not, but you do give an insight into the mental thought process that we go through as human beings, all to justify doing something that we knew was wrong right from the start.