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In urban areas, the ground floor was formerly built in stone and the upper floors in timber framing. Also, as timber framing was seen as a cheaper way of building, often the visible structures of noble houses were in stone and bricks, and the invisible or lateral walls in timber framing.
On the female socket, the major key is 4 mm deep at the 6-o'clock position. The width of the major key defines the current rating: 32 A plugs have a narrower 5 mm wide groove, while 16 A plugs have a wider 8 mm groove, and therefore 32 A plugs can be used with 16 A sockets but 16 A plugs cannot be used with 32 A sockets.
A double floor is a floor framed with joists supported by larger timbers.. In traditional timber framing there may be a single set of joists which carry both a floor and ceiling called a single floor (single joist floor, single framed floor) or two sets of joists, one carrying the floor and another carrying the ceiling called a double floor (double framed floor).
These may include plugs with insulated sleeves, recessed sockets, sockets with blocking shutters, and sockets designed to accept only compatible plugs inserted in the correct orientation. The term plug is in general and technical use in all forms of English, common alternatives being power plug, [1] electric plug, [2] and (in the UK) plug top. [3]
Plug (sheet V) and socket (sheet VI) to French standard NF C 61-315 (400 V, 32 A) The plugs and sockets used to power electric stoves from a single-phase line have to be rated for greater current values than those used with three-phase supply because all the power has to be transferred through two contacts, not three. If not hardwired to the ...
Alternative terminology such as plug and socket or jack are sometimes used, particularly for electrical connectors. [ 2 ] The assignment is a direct analogy with male and female genitalia , the part bearing one or more protrusions or which fits inside the other being designated male , in contrast to the part containing the corresponding ...
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In older plug designs both blades were the same width, so the plug could be inserted into the receptacle either way around. Many plugs manufactured since 1948 are polarized; the neutral blade is 5 ⁄ 16 in or 7.9 mm wide, 1 ⁄ 16 in or 1.6 mm wider than the line blade, so the plug can be inserted only one way. Polarized 1-15P plugs will not ...