Skystream Owner’s Manual
3-CMLT-1054 Rev O XCO 1191
Pg. 42
2-1-6 Bonding the Grounding Electrode Conductor to the Tower
The grounding conductor may be connected to the tower by any one of the following means:
2-1-6-1 Using a Tower Bolt/Nut Assembly
a)
Pre-assemble the extra nut (supplied in the tower bolt kit) on one of the tower bolts
containing nuts “A” or “B” as shown in Figure 9 of 3-CMLT-1326 Skystream 3.7 Foundation
and Tower Installation Manual. Move the extra nut towards the bottom of the bolt so that it
does not interfere with the nut to go on top of it.
b)
Assemble the nut and washer on top as explained in the Installation Manual. Generously
apply a listed “joint compound” to the sandwiching surfaces of the two nuts as well as to the
tower bolt in question. The joint compound must be of the type to prevent corrosion between
copper and galvanized steel.
c)
Take one end of the grounding conductor and loop it once around the tower bolt containing
the extra nut, between the upper and lower nut. Generously apply joint compound to the
grounding conductor and cable clamp in the area of attachment. Secure the conductor with
a cable clamp around the loop so that it just clears the tower nuts and keeps the loop snug
around the tower bolt (see figure 3). The cable clamp is required so that the ground wire
does not slip out from between the nuts when the lower nut is tightened.
d)
Ensure that surfaces of the lower and upper nuts facing each other are free of dirt and have
very clean surfaces. If necessary, wash and clean these surfaces. This is essential for a
good electrical connection between the ground conductor and the tower. Tighten the lower
nut towards the upper nut applying sufficient torque (50 lb-ft or 68 N
·
m minimum) to securely
clamp the grounding wire (see figure 3).
e)
Erect the tower and level it as required by adjusting any or all of the tower nuts. You may
have to loosen the ground wire nut during this adjustment. After adjusting the tower level, re-
tighten the lower nut to the suggested torque to make sure the ground wire is securely
sandwiched and bound between the two nuts.
2-1-6-2 Using a Grounding Lug at Tower Base
Bond the grounding conductor to the tower base flange through a ground terminal lug attached
to the tower base as shown in Figure 2. Use a 1/4-20 x 44.5 mm long stainless steel bolt
through a hole in the tower base and a Nyloc stainless steel nut to fasten the ground lug to the
underside of the tower base. The ground lug must be UL listed and must be a type that
accommodates up to 1/ 0 AWG wire minimum.
Figure 2 Attaching the grounding wire to the tower base
Figure 3 Tower foundation bolt
Содержание Skystream 3.7
Страница 37: ...Skystream Owner s Manual 3 CMLT 1054 Rev O XCO 1191 Pg 37 SKYSTREAM 3 7 Appendix B Tower Grounding...
Страница 44: ...Skystream Owner s Manual 3 CMLT 1054 Rev O XCO 1191 Pg 44 Figure 4 Concrete Encased Electrode...
Страница 45: ...Skystream Owner s Manual 3 CMLT 1054 Rev O XCO 1191 Pg 45 SKYSTREAM 3 7 Appendix C LIGHTNING PROTECTION...
Страница 53: ...Skystream Owner s Manual 3 CMLT 1054 Rev O XCO 1191 Pg 53 SKYSTREAM 3 7 Appendix D CERTIFICATION COMPLIANCE...
Страница 55: ...Skystream Owner s Manual 3 CMLT 1054 Rev O XCO 1191 Pg 55 2 CE Declaration of Conformity Europe...
