Campbell ET106, Instruction Manual

Page: 19 / 52

Section 2. ET Tower Installation
2-5
2.3.2 Grounding Procedure
Ground the tower as shown in Figure 2.2-1.
1. Place the ground rod clamp on the rod. Secure it about 3 inches from the
top. Do this before the rod is driven into the ground. Be careful not to
damage the clamp with the hammer
2. Taking care not to damage power or communications lines, drive the
ground rod close to the foundation using a fence post driver or sledge
hammer. Drive the rod at an angle if an impenetrable hardpan layer exists.
Soften hard clay soils with water if necessary.
3. Strip 1 inch of insulation from both ends of the 4 AWG ground cable.
Strip 1 inch of insulation from the lower end of the 14 AWG ground wire.
Install the tower grounding lug to the tower base with the 7/16 bolt
provided (Figure 2.1-5). Loosen the lug's set screw and insert the 4 AWG
and 14 AWG wire. Tighten the set screw.
4. Loosen the ground rod clamp. Insert the 4 AWG wire. Tighten the clamp
(Figure 2.1-5).