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Steel wire reel in Muurame, Central Finland Cable reels in Muurame, Central Finland RG-59 cable reel Shipping Roll trailer carrying cable reels Retractable cable reel. A cable reel is a round, drum-shaped object such as a spool used to carry various types of electrical wires. [1]
From 1961, a custom fleet of vehicles were converted for the transport of coils of electrical cables, wrapped around timber drums. [22] [23] The cables were steel with an aluminium shell, produced for the State Electricity Commission, and 1 1/4" thick to handle 222,000 volts. Each drum weighed four tons.
The total weight (all-up weight) of the installation machine comprises: the cable drum and cable; the wrapping mechanism; the motive power unit; the tension control mechanism and the counterweight system. All of these individual components are necessary, but some components may be combined to increase the efficiency of the design.
A drum (also called a barrel) is a cylindrical shipping container used for shipping bulk cargo. Drums can be made of steel, dense paperboard (commonly called a fiber drum), or plastic, and are generally used for the transportation and storage of liquids and powders. Drums are often stackable, and have dimensions designed for efficient warehouse ...
The bell is hollow and the damper cable is fixed internally to the distal end, which permits relative motion between the cable and damping weights. [7] To provide for greater freedom of motion, the weights may be partially slotted in the vertical plane, allowing the cable to travel outside the confines of the bell.
The wooden inserts on the drums which connected with the cables, needed replacing every five weeks due to wear, costing £20.00 each time for a new set. A fire in June 1869 destroyed the drum house, and a new building was built with the drums behind each other (the previous ones being located side by side).
An optical ground wire (also known as an OPGW or, in the IEEE standard, an optical fiber composite overhead ground wire) is a type of cable that is used in overhead power lines. Such cable combines the functions of grounding and communications .
Comparison of SWG (red), AWG (blue) and IEC 60228 (black) wire gauge sizes from 0.03 to 200 mm² to scale on a 1 mm grid – in the SVG file, hover over a size to highlight it. In engineering applications, it is often most convenient to describe a wire in terms of its cross-section area, rather than its diameter, because the cross section is directly proportional to its strength and weight ...