Term used to describe the cosmetic quality of drawn wire, which is bright, and relatively free of lubricant residue from drawing.

See Pickling Plant.

A chemi­cally clean surface is essential for electro­plating. This means that organic mineral, vegetable and animal oils and fats processes as well as inorganic contaminants, such as corrosion products and metallic oxides, swarf particles, abrasive residues and other products must be removed after forming and fabricating. Common methods for continuous plating (nickel or zinc) of wire include use of alkaline electrolytic or ultra-sound de­greasing. Acid pickling is often used if the wire has to be annealed after pre-drawing and before plating. Making the last draft before heat treatment in either emulsion or water also makes it easier to clean before plating.

See entries for Pickling, Descaling and Electrolytic Cleaning.

The vertical space between a cable and its conduit.

The time from sensing an overcurrent to circuit interruption.

A fracture, usually of a polycrystalline metal, in which most of the grains have failed by cleavage, resulting in bright reflecting facets. It is one type of crystalline fracture and is associated with low energy brittle fracture. Contrast with shear fracture.

A connection made by a wire which is passed through a hole in a printed circuit board, and subsequently formed, or clinched, in contact with the conductive pattern on each side of the board, and soldered.

A machine for clipping together by means of wire the pockets of interior spring mattresses, each spring being attached to the next by a circular clip or ring of wire.

Cable of specific impedance and electrical characteristics used to distribute the clock (master) frequency where needed in digital computers.

A spiral spring with con­centric coils lying on the same plane, made from flat section material, usually strip material in 0.95 to 1.15 percent carbon steel.

Any special tolerance that is closer than standard.

See Taped Insulation.

An insulated splice in which two or more wires overlap and enter the splice from the same end of the barrel.

A term sometimes used for any type of twisting machine used to assemble elements into a unit, i.e., wires into cables or strands into a wire rope. Closers are often of the planetary, buncher or drum twister type.

Used in the wire rope trade, similar to laying up reels. See reels.

An enclosed space for housing telecommunications equipment, cable terminations and cross-connect cabling. The closet is the recognized location of the cross-connect between the backbone and horizontal facilities.

Die used to position the individual conductors during cabling and rope making. Also, the die used to position individual wires during bunching.

A machine for making up strands into a wire rope.

Surface hardening by the impingement of steel balls.