SJOW vs. THWN insulation
SJOW vs. THWN insulation
(OP)
Sorry for the basic question, but what is the difference between these two insulations? I beleive they are both for wet locations.
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RE: SJOW vs. THWN insulation
From memory I beleive SJOW is a cable intended for hard usage, and exposed use (not in conduit), for exmaple for flecibale cables for stage lighting and equipment (for temporary but hard or abusive use purposes).
You can not use THWN without enclosing in a raceway (conduit).
RE: SJOW vs. THWN insulation
THWN is general purpose building wire. The insulation is typically PVC.
RE: SJOW vs. THWN insulation
Also, SJ cord is flexible multiconductor with thermoset insulation, where THWN is single conductor with thermoplastic insulation.
RE: SJOW vs. THWN insulation
The main difference is that THWN (THHN) is individual conductors that must be used in an approved raceway, i.e. conduit, whereas SJOW is mulit-conductor cord that is intended to be used for connection of temporary or portable equipment, stand-alone in free air or laying on the ground (it is nearly impossible to pull S-type cord of any sort through a conduit anyway. I know, I've tried!). Be careful though, most codes will not allow "portable cord" like SJOW to be used for permanent installations without protection from physical damage, in which case you may as well go with the THWN.
"Venditori de oleum-vipera non vigere excordis populi"