Notes from the workshop
Posts tagged “technical”.
Two Shelly Pro Dimmers in the board, four push buttons in a hall and a living room. A small example to try out how buttons, dimmers and lights connect.
A small flat to try out: where the network cables run, what happens in the network cabinet, and how walls and band change the Wi-Fi.
From AC to B+: what separates the six RCD types and when type B stops being enough.
What actually separates B, C and D breakers: the magnetic trip threshold, not overload protection. With a trip curve and some of the math behind it.
RCBOs save space on the rail but cost a lot more than a separate RCD and breakers. A look at both sides, with the ABB DS301C as an example.
Why a standard ferrule tool gives up on twin ferrules at 10 mm² and up and how to crimp 10 and 16 mm² TWIN cross-sections cleanly anyway.
Why ferrules come in 10, 12 and 18 mm lengths and what separates a good one from a no-name bag.