SIL/DAC-VI - Abbreviation for Dacron braid over silicon rubber, Type VI, per MIL-C-17.
SILICONE - A thermoplastic elastomer insulation with excellent heat resistance.
SILICONE IMPREGNATED - The complete saturation of insulating tapes or braids with a silicone varnish compound. The process may be performed under a vacuum. The compound serves as a heat and flame-retardant as well as a binder.
SIMPLEX CABLE - A single fiber optical cable.
SINGLE-MODE FIBER - An optical waveguide in which only one mode propagates due to its small core diameter of approximately 9 microns.
SINTERED - Usually refers to curing of PTFE. To cause to become a coherent mass by heating without melting.
SIS - XLP (cross-linked polyolefin) switchboard wire.
SJ - 300 volt junior service rubber insulated UL approved portable cord, rubber jacket. 18 AWG two conductor through 16 AWG four conductor.
SJO - 300 volt junior service rubber insulated UL approved portable cord, Neoprene® jacket. Neoprene® is a trademark of the DuPont de Nemours Co.
SJT - 300 volt junior service vinyl insulated UL approved portable cord, vinyl jacket.
SJTO - 300 volt. Same as SJO except all thermoplastic construction.
SKELETON BRAID - Widely separated braid of fiber, copper, or steel may be used to hold core together, for reinforcing jacket or for shielding.
