Graphic Rule
This is an example of the graphic representation of cable trays in an elevation view.
Dimension Rule
Horizontal cable trays are dimensioned with vertical dimensions, while vertical cable trays are dimensioned with horizontal dimensions. Cable trays are only dimensioned as anchors, which means they are only dimensioned when they are in close proximity to a group of dimensioned objects. If a cable tray is not close enough to a group of dimensioned objects in a particular quadrant, it is not dimensioned.