FYI
The tempcover product (yellow plastic with magnets to cover a panelboard) is no longer is classified by Underwriters Laboratories (UL). The classification QEWI was eliminated in September of 2010. See the 2011 White Book.
The National Electrical Manufacturers Association (NEMA) has taken a formal position that no product, except the full metal dead-front supplied by the manufacturer is permitted on a panelboard that is energized.
The manufacturer of this product still markets it as being UL classified. It is not.
There were favorable letters of interpretation written by OSHA only because the product was classified by a Nationally Recognized Testing Laboratory (NRTL), which was UL. That classification has been eliminated. The basis for the letters of interpretation is gone.
This could cause serious issues for contractors using this product to cover an energized panelboard.
The tempcover product (yellow plastic with magnets to cover a panelboard) is no longer is classified by Underwriters Laboratories (UL). The classification QEWI was eliminated in September of 2010. See the 2011 White Book.
The National Electrical Manufacturers Association (NEMA) has taken a formal position that no product, except the full metal dead-front supplied by the manufacturer is permitted on a panelboard that is energized.
The manufacturer of this product still markets it as being UL classified. It is not.
There were favorable letters of interpretation written by OSHA only because the product was classified by a Nationally Recognized Testing Laboratory (NRTL), which was UL. That classification has been eliminated. The basis for the letters of interpretation is gone.
This could cause serious issues for contractors using this product to cover an energized panelboard.
