Water Absorption -- Ratio of the weight of water absorbed by a material to the weight of the dry material.

Water Absorption Test -- A method to determine the water absorbed through an insulating material after a given water immersion period.

Water Blocked Cable -- A cable specially constructed with no internal voids in order to allow no longitudinal water passage under a given passage under a given pressure.

Watt (W) -- A unit of electrical power; the power of one ampere of current pushed by one volt of electromotive force.

Waveguides -- A transmission media which can expand capacity of channels for enormous pair gain by utilizing a circular metal tube through which high frequency radio waves travel. More than 200,000 voice channels have been transmitted simultaneously in prototype testing.

Wavelength (Fiber Optic) -- The distance, measured in the direction of propagation, of a repetitive electrical pulse or waveform between two successive points that are characterized by the same phase of vibration.

Weight Resistivity -- The resistance in ohms at a specified temperature of a body of uniform cross-section and of unit weight and unit length.

Welding -- Joining the ends of two wires, rods or groups of wires (1) by fusing, using the application of heat or pressure or both, by means of a flame torch, electric arc or electric current; or (2) by cold pressure.

Wetting -- The ability of a material to absorb moisture.

Wicking -- The longitudinal flow of a liquid in a wire or cable construction due to capillary action.

Width -- Pertaining to flat cable, distance between edges of the cable.

Wire Wrapping Tools -- Portable electric tools and automatic stationary machines used to make solderless, wrapped connections of wires to terminals.

Working Life -- The period of time during which a liquid resin of adhesive remains usable after mixing with a catalyst, solvent or other compounding ingredients.

Working Voltage -- The recommended maximum voltage of operation for an insulated conductor. Usually set at approximately 1/3 of the breakdown voltage.