What additional Information do I need to supply to the cable tray manufacturer for them to best understand and satisfy my needs?

Where? Job site and installation considerations

• Outdoor
  • supports available affect the length and strength requirements
  • environmental loads, ice, wind, snow, and possibly seismic
  • corrosion requirements affect the materials and finishes
  • classified hazardous locations affect the cable types acceptable

• Indoor
  • support locations available affect the length and strength of the system
  • industrial installation may require a 200 lb. Concentrated Load
  • commercial or institutional installation may make system appearance, system weight, and space available important factors
  • environmental air handling area may affect cable types, cable tray material, or cable tray type and need for covers
  • classified hazardous locations affect the cable types acceptable

 

What?

• Type and number of cables to support
  • NEC cable fill requirements dictate size, width and depth, of system
  • cable support requirement may control bottom type
  • largest bending radius of cable controls fitting radius
  • total of cable weight determines load to support

• Future requirements
  • cable entry / exit freedom
  • design partially full or an expandable system
  • support type to allow for needs