In telecommunications and CATV systems, the transmission cable between the distribution amplifier and the drop wire. Also, term used for power cables on transmission lines with high voltage and sub-transmission lines with lower voltage.

A structure with terminations for connecting the permanent cabling of a facility in such a manner that interconnection or cross-connections may be readily made.

A statistical method used to analyze data by correlating data to a theoretical curve to: a) test validity of data; or b) predict performance at conditions different from those used to produce the data.

A conductor that receives energy generated by the field of another conductor or an external source such as a transformer.

A conductor carrying energy that creates spurious signals in another conductor.

The ratio of the sum of load demands to a system demand.

A rotary drum-type shear located after the last stand of the mill that may be used to crop (cut) front-end sample pieces.

This condition, which occurs because of inhomogeneity, can be seen metallographically when one of the two constituents in an eutectic structure appears as a massive phase embedded in the second phase, which is continuous, rather than as layers or pearlitic lamellae. The continuous eutectic constituent is usually indistinguishable from the accompanying proeutectoid constituent. It should be emphasized that this condition only occurs with as-cast microstructures of eutectic alloys, and in particular, the terminal solid solutions. A well-known alloy having this condition is sterling silver (7.5% copper, balance silver). Often, the microstructure of divorced eutectics will be eliminated by wiredrawing and subsequent annealing, homogenization, or solution heat treatments.

Designation for digital multimeter. See VOM.

Designation for diameter overall.

Designation for Diameter Over Conductor; note that for cables having a stress control, the diameter over the stress control layer becomes the DOC.

Kinks in the curvature of wire that cannot be easily straightened.

A grease used as a wiredrawing lubricant. Also known as wool fat or lanolin. It is a suitable lubricant for drawing large-diameter, copper-coated steel wire on a bull block.

Designation for Diameter Over Insulation.

Designation for Diameter Over Jacket.

A mineral made up of calcium and magnesium carbonates. It is used in calcium carbonate, which is used for many applications, including as a filler for cable.

Designation for Diameter Over Insulation Shield.

Designation for Diameter Over Stress Control.

A means of obtaining a non-slip accumulation type wiredrawing machine without the use of overhead take­off pulleys so as to avoid twist in the wire. A second block is mounted above the drawing block and on the same spindle, but the upper block is free to rotate in either direction. Wire is transferred from one block to the other via a pulley. The term double deck block is more properly applied to a bull block designed to produce a double draft.

This consists of two driven wheels, a frame and a driving unit. It is mainly used to pull wire through a Turks Head in the same way as a shedding drum. Unlike a shedding drum, the wire is not bundled on the capstan. This prevents lateral rubbing of the wire and permits a much greater pull to be applied to the wire coming through the Turks Head.