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For details on the telephone connection see the section titled "telephone" in this article. Note the connection of the security system to the phone line requires a wiring configuration that allows the security system to disconnect all phones in the home when it needs to connect to the monitoring center.
The neutral is connected to the center tap of the power company transformer of a split-phase system, or the center of the wye connection of a polyphase power system. United States electrical codes require that the neutral be connected to earth at the "service panel" only and at no other point within the building wiring system.
Only Connect is a British television quiz show presented by Victoria Coren Mitchell. In the series, teams compete in a tournament of finding connections between seemingly unrelated clues. The title is taken from a passage in E. M. Forster's 1910 novel Howards End: "Only connect the prose and the passion, and both will be exalted." [2]
A somewhat similar system called "concentric wiring" was introduced in the United States around 1905. In this system, an insulated electrical wire was wrapped with copper tape which was then soldered, forming the grounded (return) conductor of the wiring system. The bare metal sheath, at earth potential, was considered safe to touch.
Modern home buyers often find that existing K&T systems lack the capacity for today's levels of power use. First-generation wiring systems became susceptible to abuse by homeowners who would replace blown fuses with fuses rated for higher current. This overfusing of the circuits subjects wiring to higher levels of current and risks heat damage ...
A similar, usually wall mounted, container used mainly to accommodate switches, sockets and the associated connecting wiring is called a pattress. The term junction box may also be used for a larger item, such as a piece of street furniture. In the UK, such items are often called a cabinet. See Enclosure (electrical).
A conductor that provides a connection to Earth for safety and protection purposes, for both end-user devices and metal objects and components in the installation. Colour-coded green/yellow striped, though may be bare (uninsulated) within sheathed cable (pre-1976: solid green). Conduit A form of wire containment comprising plastic or metal tubing.
Proof without words: One house is temporarily deleted. The lines connecting the remaining houses with the utilities divide the plane into three regions. Whichever region the deleted house is placed into, the similarly shaded utility is outside the region. By the Jordan curve theorem, a line connecting them must intersect one of the existing lines.