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horsemagicians t1_j25e8bl wrote

Reply to comment by roobinsteen in 120v Extension Cord with USB outlets by HardSn0wCrash

>The majority of wire run through conduit (think commercial electrical applications) is all stranded, not solid.

As a commercial electrician I can promise you this absolutely isn’t true. 99% of the time it is solid. Far easier to terminate solid in a panel then stranded. The only time stranded is really used is when you have to because the wire size is 8awg or larger and it’s only stranded at that point.

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entropy512 t1_j25ps95 wrote

I've been told (I have yet to confirm) that at least in the EU, when terminating stranded into a screw terminal, ferrules are required.

(Ferrules are wonderful in this regard - they let you get the flexibility of stranded wire, but as far as termination is concerned, stranded with a ferrule crimped on it may as well be solid.)

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roobinsteen t1_j25esvw wrote

Fair enough, I defer to you. Oddly though, electricians I know (small residential contractor here) have told me the exact opposite--they often use stranded in conduit because it's easier to pull. Either way, as I'm sure you know, stranded is acceptable to use on receptacles in most cases. OP used the backwire terminal clamps, which is OK for stranded.

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