Wikipedia:Reference desk/Archives/Computing/2018 December 31

= December 31 =

Facebook - How to create poll with more that 2 options???
I run a Facebook page for an organization. I would like to create a poll with more than 2 options. If I try to create a poll in a group, there's a "+ Add option" link. But if I try the same thing on my organization page, there is no "+ Add option" link. How do I add more than 2 options? Is this even possible? (And if not, why would Facebook do something so stupid?) A Quest For Knowledge (talk) 15:06, 31 December 2018 (UTC)
 * you can't really, but you can add extra options after the fact. See https://www.facebook.com/help/community/question/?id=10200766892914459 for more info --DannyS712 (talk) 07:21, 5 January 2019 (UTC)

Equipment powered by 16 A commando plug power distribution unit is unfused?
I got a "power distribution unit" with a 16 A commando plug on it to power all my computer equipment. It will be plugged into a 13 A domestic outlet using an adapter with a 13 A fuse. My question is, since the 16 A commando plug doesn't have a place for a fuse and the IEC C13 to C14 cable doesn't have a place for a fuse, doesn't that mean a lot of equipment is connected without fuses where these are in use (presumably industrial settings)? Is that okay? Seans Potato Business 22:51, 31 December 2018 (UTC)
 * Hopefully everything together is using less than 13 A. If you have a circuit breaker or fuse upstream, that should give protection against fire. However if that breaks it may disconnect more power points rather than just your computing gear. Graeme Bartlett (talk) 02:23, 1 January 2019 (UTC)


 * That type of (CEE 17, round, blue, well hidden through Commons' habitual obscurity) socket outlet isn't used with the typical UK ring main. Incidentally, 'Commando' is just an MK brand name for their own product, other ratings and colours too. Instead they're either supplied by radial circuits (as used in most of Europe) which are individually fused at 16A (at the main fuse board), or else they're supplied by a fused spur from a ring main. Many sockets for this type have such a circuit breaker built in.
 * It would be an error to connect such a socket outlet to a UK ring main without appropriate fusing (as the ring would be fused at 32A). Partly because the appliance would then only be fused at 32A, but also (and perhaps more seriously) because the cable from the plug would be fused like that too, and cables need fusing too to protect them from mechanical damage.
 * I wouldn't use this. It gives no advantage to just taking it off and replacing it with a typical BS1363 square pin plug.
 * I do use these myself, but only in the workshop, not with the computers. Mine are wired in on a mixture of radials and fused spurs, depending on how much load is involved. The big machines use C curve circuit breakers (slower, to avoid inductive spikes tripping them) and also higher ratings on the ELCB, more than the usual 30mA for the bench sockets. Those supplies don't feed any of the square pin outlets. Andy Dingley (talk) 12:27, 1 January 2019 (UTC)
 * The IEC_60309 (aka CEE-17) is an industrial power connector. It's normally used on caravan parks and marinas to provide mains electricity to the vehicles that are visiting. It's also occasionally used in industrial sites and auditoria. They are always unfused (only UK mains plugs are fused). I would concur with Andrew Dingley; replace it with a standard 13Amp plug. LongHairedFop (talk) 16:29, 2 January 2019 (UTC)