Continuing Education |
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These credits are IAEI, Philadelphia, and Pennsylvania approved. Square D was asked the factory to clarify the procedure to install a piece of 3R equipment and ensure that the drain is provided. Here's their response regarding safety switches: Nothing has to be done to the 30A - 600A NEMA 3R switches. Their drain provisions are designed into the bottom endwall. The 800A - 1200A have a screw in the bottom endwall that is removed and discarded. There is a label by the screw telling the installer to remove it. Some of our starters are supplied with a 12/3R enclosure. These enclosures must be field modified to make them 3R from 12. These instructions are provided on page 16-95 of the latest Digest.  Applying Safety Switches in Photovoltaic Installations - Provided by Square D Direct Current and Photovoltaic Systems - Provided by Square D Slides on Arc Flash and Power System Protection - Provided by Frank Mercede of the Mercedes Electric Company from his presentation at the IAEI Ben Franklin Chapter February Meeting 
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