Rigid metal conduit must be provided with expansion fittings if necessary to compensate for thermal ... Mike Holt is the owner of Mike Holt Enterprises (www.MikeHolt.com), one of the largest ...

In 2004, U.S. companies shipped more than $2.2 billion of electrical conduit and fittings, which include all the many types ... that conduit's broad range of design types includes rigid metal conduit ...