Cable Outer Diameter
Cable outer diameter is the overall outside dimension of the finished cable.
It includes the protective layers and is separate from conductor diameter or cross-sectional area. Non-round cables may need more than one outside dimension.
Cable Outer Diameter — Speaker Cable
For a loudspeaker cable, outside diameter helps assess routing space and cable support. It includes insulation and other outer layers, not only the metal conductors.
Compare the overall shape and diameter with the intended route. A thick jacket does not establish a large conductor cross-section or low resistance, and terminal acceptance depends on the stripped conductor or fitted termination.
Cable Outer Diameter — Phono Cable
For a phono cable, outside diameter affects how easily the cable can be routed around the turntable and arm connections. Flexibility and bend limits are separate details.
Compare clearance and strain at the connector rather than treating diameter as a capacitance rating. The conductor size and dielectric arrangement cannot be determined from outside diameter alone.
Cable Outer Diameter — Optical Cable
For an optical cable, outside diameter describes the protected fibre assembly. It is much larger than the fibre core or cladding measurements.
Compare conduit and connector clearance and retain the stated minimum bend radius. A thinner cable is not automatically tolerant of tighter bends, and diameter alone does not establish supported signal rate.
Cable Outer Diameter — BNC Cable
For a BNC cable, outside diameter helps determine routing and connector-assembly fit. It describes the jacketed cable rather than the centre conductor.
Compare the complete cable dimensions with the intended fittings. Outside diameter alone does not establish 75-ohm characteristic impedance because the internal dimensions and dielectric also matter.
Cable Outer Diameter — XLR Cable
For an XLR cable, outside diameter affects routing space and the cable’s fit in a connector or strain relief. Its internal conductor arrangement remains a separate specification.
Compare diameter with the intended connector assembly and bend requirements. A larger outer size does not automatically mean more conductors, stronger shielding or a larger signal-conductor cross-section.
Cable Outer Diameter — RCA Cable
For an RCA cable, outside diameter describes the jacketed assembly between the connectors. It is separate from the width of the connector barrels.
Compare both cable and connector clearance behind the equipment. Diameter alone does not identify capacitance, conductor size or the intended analogue-versus-digital signal application.
Cable Outer Diameter — Power Cable
For a power cable, outside diameter helps assess routing and connector strain-relief fit. It includes the insulation, jacket and other layers around the supply conductors.
Compare the actual conductor cross-section and electrical rating separately. A thick outer jacket is not proof of higher current capacity, and bend or support requirements still apply.