SKIN EFFECT - In an alternating current system, a phenomenon that occurs at increased frequencies causing an increase in resistance of the conductor causing the outer skin to carry most of the current. The phenomenon increases in intensity the higher the frequency.
SLEEVING - A braided, knitted, woven tube.
SNCCS - Abbreviation for silver-covered nickel-covered copper-clad steel.
SO - A 600 volt senior service Neoprene® jacket UL approved portable cord; 18 AWG two conductor through 10 AWG four conductor. Neoprene® is a trademark of the DuPont de Nemours Co.
SOLDER - A metal or metallic alloy used when melted to join metallic surfaces; an alloy of lead and tin so used.
SOLDERABLE NYLON LITZ - Litz wire made up of soldereze strands with a nylon serve overall.
SOLDEREZE - Magnet wire insulated with polyurethane base enamel.
SOLID CONDUCTOR - A conductor composed of one wire. Generally 18 AWG through 6 AWG, used where flexibility is not required.
SONAR - Acronym from sound navigation ranging. A method of detecting and locating underwater objects by transmitting a pulse of sound energy, usually ultrasonic, then measuring the return “reflected” echo.
SP SHIELD - Abbreviation for silver-plated shield.
SP-1 - Lamp cord, parallel, all rubber, two conductor, 300 volt.
SP-2 - Similar to SP-1 except heavier insulation.
