Cable Tray clamp hold down fixed after installation is fixed (9mm bolt) as the only rung hanger and Angle if you skip this overlap is three consecutive locations omitted clamp is prohibited.
After installation, if a fixed cable tray is rung hanger and two fixed Angle overlap (using 9mm volts) to hold down clamp is prohibited, but skip the clamp is omitted consecutive three places
cable tray installation, fixed is fixed to hold down down. clamp (9mm bolt of a rung hanger) and Angle layer coating for the reduction clamp series 3 can be omitted is forbidden.