Cable Types, S, SO, SOOW, SJ

philhaney;102667 said:

S = Extra Hard Usage Service Grade

SJ = Junior Hard Service grade

SO = Same as S but with oil resistant jacket. (thermoset)

SOO = Same as S but both conductor insulation and jacket are oil resistant. (thermoset)

SOOW = Same as SOO except outdoor rated. (thermoset)

I got this from North American Cable Types

Click to expand...

Type S (and all subsequent letter codes) = Extra Hard Usage--required in almost all article 520 Theatre applications

Type SJ (and all subsequent letter codes) = Junior Hard Service (permitted by Section 520 of the NEC only in twofers and adaptors not more than 36" in length, and breakout assemblies not more than 20' in length that are not on the floor and are supported by a substantial structure such as a truss or pipe over their entire length)


Always good to know:


See also http://www.controlbooth.com/forums/glossarys/9887-wire-cable-electrical-types.html.