FHPE - Abbreviation for foamed high density polyethylene.
FIBER OPTICS - Transmission of energy by light through glass fibers.
FIELD - Area through which passes electric and/or magnetic lines of force.
FIGURE 8 CABLE - An aerial cable in which the conductors and steel supporting strand are jacketed together in such a manner that a cross section of the cable approximates the figure eight.
FILLED CABLE - A telephone cable construction in which the cable core is filled with a material that will prevent moisture from entering or passing through the cable.
FILLED STRAND - Conductor in which the interstices between the individual wires are filled with a compound to prevent moisture migration along the conductor.
FILLER - a) Fillers are used in multi-conductor cable to occupy the voids formed by the assembled conductors. This is done so that there sulting configuration will be round. b) An inert substance added to a compound to improve properties or decrease cost.
FIRE CONTROL EQUIPMENT - This is equipment that automatically directs the firing of armament. It is constructed in accordance with International Municipal Signal Association Standards. These standards recognize 18 to 9 AWG wires and cables that may be insulated with rubber or polyethylene with lead or lead alloy sheath.
FL - Abbreviation for FL poly tape.
FLAME-RESISTANCE - The ability of a material not to propagate flame once the heat source is removed.
FLAME-RETARDANT - Ability of a material to prevent the spread of combustion by a low rate of travel so the flame will not be conveyed.
FLAMMABILITY - The measure of a material’s ability to support combustion.
