Safety

About this blog.

Test Before you touch!

All but one…

Spot the Code Violation!

NEC 2005 Article 110.26 Table 110.26(A)(1), that our 480 VAC control cabinet must have a minimum of 42″ of working space in front of it.

Open or closed the clearance is 42″. Easily accessible means you can get to it, no ladders, no climbing under or over stuff, no removing ceiling panels etc. Generally it means you can walk to it.

The table is not a standalone requirement, you must look at the referencing text. 110.16(A)(1) is clear: “Distances shall be measured from the exposed live parts or from the enclosure or opening if the live parts are enclosed.”