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What Makes SO Cord Different From SOOW Cable
We have been at this for many years and hardly a day goes by that we are not asked what the difference is between SO cable, SOW cable and SOOW cable. SO cable is an older version of this cable and was basically the original call out for what we see today as service cord. The S stands for service and the O stands for oil resistant Jacket. Over time, as technology advanced the W was added to the original call out and that meant that the outer sheath was also now water resistant. The top voltage approval on any of the above cable types is 600 volts. If you need a higher voltage rating you would want to look at a Type W or maybe even a Type G cable. Each of those would be rated up to 2000 volts.
The modern day version is now mostly called SOOW cable. The newest version now has both an oil resistant outer sheath as well as oil resistant inner conductors. The W still represents a water resistant outer sheath. Note we say water and oil resistant and not water and oil proof. Many people inquire if this cable can be used in situations where the cable will be under water all the time. We do not recommend that you utilize the SOOW cable for this environment as that is not what it is designed for. Think transitory power situations like stage lighting or temporary generator use etc. If the jacket gets wet occasionaly is much different than keeping it under water. The same thing is true of the oil resistant attribute of the cable. It is not advisable to keep this cable covered in oil or any caustic substance for that matter.
You can get SOOW cable in sizes ranging from 18 gauge at the small end up to 2 gauge at the bigger end. Number of conductors may be anywhere from 2 conductors up to 60 conductors based on the size of the cable in question.
Talk to an SO Cable Professional at Delco Wire: 1-800-714-WIRE (9473).