Posts Tagged ‘pvc’

To PVC or not to PVC? That is the question

July 24th, 2013 | Make a comment | Posted in Electrical Safety
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Hi, we’re glad to publish this article by one of our community members, Mason N. You might remember his striking article-testimony about the SPD industry. Now he chose to send us an article about electrical conduits. So To PVC or not to PVC? Let’s read what he has to say.


“To PVC or not to PVC? That is the question”…Pardon the horrible pun but we Engineers not authors and if a pun doesn’t make you groan in pain it’s not a good one. In this post I’d like to share some items for consideration when it comes to specifying and using different types of electrical conduit for industrial/ municipal applications as well as my approach in these situations.

I want to start by defining the conduit types I see most often and the ones that I’ll focus on for this article:

  1. PVC, usually schedule 40 or 80 (Polyvinyl Chloride)
  2. EMT (Electrical Metallic Tubing)
  3. RGS or GRC (Rigid Galvanized Steel)(Galvanized Rigid Conduit)
  4. FMC or LFMC (flexible Metallic Conduit) (Liquidtight Flexible Metallic Conduit)
  5. Protected RGS. This is RGS or GRC that is either factory coated with a PVC outer cover and interior coating, or has been wrapped with polyvinyl tape.


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