Cable Basics 102: What Do the Letters on My Cable Mean?
Ever noticed a series of letters on your cable and wondered what they mean? These markings aren't random—they reveal critical details about voltage rating, insulation, and environmental resistance.
In this video, we break down:
✅ What do cable markings mean?
✅ Common portable cord letter codes and their meanings:
✔ S – Service, 600V
✔ SJ – Junior Service, 300V
✔ O – Oil-Resistant Outer Jacket
✔ OO – Oil-Resistant Outer Jacket & Oil-Resistant Insulation
✔ W – Weather & Water-Resistant
✔ T – Thermoplastic
✔ E – Elastomer
✅ How these letters impact durability & usage
✅ Choosing the right portable cord for your needs
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