Description
Does “liquidtight” mean water can never get in? 💧 Choosing flexible conduit involves more than checking whether the installation is indoors or outdoors. The conduit, fittings, seals, and enclosure all matter, along with the conditions the complete system will face.
Special thanks to ABB for sponsoring this video and supporting Electrician U! ⚡
Explore ABB’s T&B Liquidtight Systems:
https://electrification.us.abb.com/products/flexible-cable-protection-systems/tb-liquidtight-systems
In this episode, Dustin breaks down the terminology electricians encounter when selecting raceways and fittings, including liquidtight, raintight, dusttight, weatherproof, sunlight-resistant, and corrosion-resistant. These terms describe different aspects of protection, and knowing what to look for helps you choose materials suited to the installation.
We start with dry, damp, and wet locations, then look at three questions that affect material selection: Can the environment damage the material? Can liquids or solids get inside? Can weather interfere with the equipment’s operation? Dustin also discusses NEMA enclosure types and explains the two digits in an IP rating, including examples such as IP67 and IP69.
Then we get into the materials themselves: flexible metal conduit (FMC), liquidtight flexible metal conduit (LFMC), liquidtight flexible nonmetallic conduit (LFNC), and electrical nonmetallic tubing (ENT). Dustin compares their construction and discusses why sunlight exposure, direct burial, temperature, corrosion, and other application requirements deserve a closer look.
Using examples supplied by ABB, we examine liquidtight fittings, sealing rings, and gaskets to show why the connections matter just as much as the raceway. A conduit’s rating alone doesn’t establish the protection of the finished installation. The components need to be suitable for one another, properly installed, and rated for the conditions they will encounter.
Whether you’re working around rain, dust, industrial washdowns, or corrosive conditions, this is a practical look at what to check before choosing your next conduit system. 🔧
What do you call these materials where you work: flex, Greenfield, Carflex, or something else? Drop your local terminology in the comments!
⏱️ CHAPTERS
00:00 Liquidtight Conduit: Why the Complete System Matters
02:04 Electrical Terminology & Dry, Damp, and Wet Locations
04:25 Material Resistance, Ingress & NEMA Ratings
07:33 IP Ratings Explained
09:50 Comparing FMC, LFNC, LFMC & ENT
13:14 Liquidtight Fittings, ABB Seals & System Protection
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#electrician #electrical #electricity