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Title: Dry paper insulated [Go to resource]
Description: Dry paper insulated, copper conductor cable suitable for medium distance inter-exchange connections constructed in concentric layers of quads, each quad containing two pairs; sheathed with aluminium with magnetic steel tapes, giving improved screening against magnetic interference from high power circuits, e.g. 25kV A.C. railways License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Source: Science Museum Identifier: 1969-345 Go to resource More Like this...
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