Alternative or conditioned wiring

Ground

Ground, common connections, specific potential difference

Ground, chassis or frame connection

Ground, low-noise

Ground, safety

Intentional isolation of direct-current path in coaxial or waveguide applications

Pressure-tight bulkhead cable gland, cable sealing

Termination, application- movable short circuit

Termination, open circuit, not a fault

Termination, short circuit, not a fault

Transmission line, strip-type, unbalanced stripline

Transmission line, strip-type, unbalanced stripline 2

Transmission lines, cable underground; underground line

Transmission lines, load line

Transmission lines, overhead line

Transmission lines, submarine line; underwater line

Transmission lines, telephone line

Transmission path, 2-conductor cable

Transmission path, air or space

Transmission path, associated conductors, twisted

Transmission path, associated conductors, twisted 2

Transmission path, associated conductors, twisted 3

Transmission path, coaxial cable

Transmission path, conductor or cable end with end especially insulated

Transmission path, conductor or cable end, not connected

Transmission path, dielectric path other than air

Transmission path, grouping of leads

Transmission path, grouping of leads 2

Transmission path, interrupted

Transmission path, interrupted 2

Transmission path, shielded single conductor

Transmission path, shielded single conductor 2

Waveguide, circular recognition symbol

Waveguide, coaxial

Waveguide, dielectric-filled metallic rectangular

Waveguide, flexible

Waveguide, gas-filled rectangular

Waveguide, Goubau line

Waveguide, rectangular, recognition symbol

Waveguide, ridged

Waveguide, solid-dielectric rectangular

Waveguide, twisted