User Manual

NOTCHCELL 20W OPERATING MANUAL
R-tron America, Inc. Page: 22 / 57
3.3.5 Grounding
Three types of grounding are applied - system grounding, arrester grounding, and steel
tower grounding.
The arrester and the fixing studs are installed on the bottom of the repeater.
The steel tower grounding and arrester grounding shall be in conformity to the standard
of the steel tower manufacturer.
3.3.5.1 General
- Use the GV cable for the grounding.
- Branch point shall be finished with C-tap and the heat shrink tube. When branching off
outside, make sure to prevent the inflow of rain.
- Grounding shall be, in principle, connected from the Under Ground grounding.
- Install the grounding cable with PVC Flexile Pipe and Flexible Conduits for the external
protection.
3.3.5.2 System grounding
- The Under Ground shall be made with up to 3 ground bars or with ground resistance
of 20Ω or lower.
- After excavating the ground to 70Cm from the surface, cast the ground bars at a
distance of at least 3m between one another.
- Connect the ground bars to the PVC Pipe with Bare Wire(38㎟) and C-Tap.
- Connect GV 38㎟ x 1C to the stud on the bottom of the cabinet with the underground
bar.
- Use the 1 Hole Terminal Lugs, and finish with the Green Shrink Tube.
- For the arrester grounding of the steel tower, connect GV 38mm² x 1C from the Under
Ground