I have found some work being done in my name (license), by a division of the company I work for, and I am troubled by it.
They are running NM cable inside surface-mounted plastic raceway (Panduit wiring duct). This plastic surface raceway is not the kind made by companies like WireMold, or even Panduit's T-45 series, but the kind used inside control panels, with a plastic U-shaped trough and a flat cap for a cover. Panduit says it is for 50V or less. It is being used for 120/240-V circuits. They also are filling these wireways way beyond 40% of volume. There are no transition fittings between the raceway and boxes and panelboards, but merely a tight fit, but not tight enough to prevent anyone from seeing the Romex sheathing (exposed). I called Panduit and it is not approved by them. They have no approved fittings for the transition, which explains why I didn't see any. Also, they push as many cables through the knockouts as possible without protection. All corners are custom made (no fittings, just carved straight sections). The buildings are metal buildings, mountable on a truck, with lifting eyes for loading on boats or trucks. These buildings are being used for temporary quarters for up to 12 men, temporary offices, laundry rooms, pantries and cold food storage, and galleys (the galleys are the only buildings wired using emt and approved fittings).
Q1: Can NM cable be run in this stuff?
Q2: Can NM cable be run anywhere not behind drywall board, exposed to sight?
Q3: How many circuits are allowed through a knockout?
Q4: Is NM cable allowed through a knockout?
Q5: Can plastic surface raceway (not approved by the manufacturer) be run on the surface of walls to luminaires, switch boxes, water heaters, air conditioners, and panelboards?
This is just a brief view of what I saw.
They are running NM cable inside surface-mounted plastic raceway (Panduit wiring duct). This plastic surface raceway is not the kind made by companies like WireMold, or even Panduit's T-45 series, but the kind used inside control panels, with a plastic U-shaped trough and a flat cap for a cover. Panduit says it is for 50V or less. It is being used for 120/240-V circuits. They also are filling these wireways way beyond 40% of volume. There are no transition fittings between the raceway and boxes and panelboards, but merely a tight fit, but not tight enough to prevent anyone from seeing the Romex sheathing (exposed). I called Panduit and it is not approved by them. They have no approved fittings for the transition, which explains why I didn't see any. Also, they push as many cables through the knockouts as possible without protection. All corners are custom made (no fittings, just carved straight sections). The buildings are metal buildings, mountable on a truck, with lifting eyes for loading on boats or trucks. These buildings are being used for temporary quarters for up to 12 men, temporary offices, laundry rooms, pantries and cold food storage, and galleys (the galleys are the only buildings wired using emt and approved fittings).
Q1: Can NM cable be run in this stuff?
Q2: Can NM cable be run anywhere not behind drywall board, exposed to sight?
Q3: How many circuits are allowed through a knockout?
Q4: Is NM cable allowed through a knockout?
Q5: Can plastic surface raceway (not approved by the manufacturer) be run on the surface of walls to luminaires, switch boxes, water heaters, air conditioners, and panelboards?
This is just a brief view of what I saw.
