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Kerite Company was founded in 1854 by Austin Goodyear Day, nephew of Charles Goodyear.The company installed the a power cable under New York Harbor in the late 1800s, and cable for the Panama Canal in the early 1900s.
It comes in two deliberately incompatible variants to prevent people connecting two mains supplies together. The type A is blue and used for power sources (power flows out of a blue-ended cable, into a chassis socket). The type B is grey and used for power drains (power flows from a chassis socket into a grey-ended cable). Couplers are ...
1954, the first HVDC submarine power cable (non-experimental) [18] Gotland 2 and 3 installed in 1983 and 1987. HVDC Inter-Island: South Island: Cook Strait: North Island: 350: 40 km (25 mi) 1965: between the power-rich South Island (much hydroelectric power) of New Zealand and the more-populous North Island. HVDC Italy-Corsica-Sardinia (SACOI ...
A 0.75 HP bore-well submersible pump which had been used to pump groundwater One style of submersible pump for industrial use. Outlet pipe and electrical cable not connected. A submersible pump (or electric submersible pump (ESP) is a device which has a hermetically sealed motor close-coupled to the pump body. The whole assembly is submerged in ...
BS 6231 is a British Standard, last revised in 2006 by the BSI Group. [4] This standard specifies the performance and construction requirements of electrical cables that are single core, non-sheathed, PVC-insulated and rated 600/1000 V. Wire meeting the requirements of type CK of this standard is used as tri-rated wire.
Submersible pumps are mounted on two vertical guide rails and seal onto a permanently fixed "duckfoot", which forms both a mount and also a vertical bend for the discharge pipe. For maintenance or replacement, submersible pumps are raised by a chain off of the duckfoot and up the two guide rails to the maintenance (normally ground) level.
However, 130/225 V, three-wire, two-phase electric power discontinued systems called B1 are used to run old installations in small groups of houses when only two of the three-phase high-voltage conductors are used. The phase shift in Europe is 120°, as is the case with three-phase current.