Installation guide

84 Installation/DishAssembly
between the ground block and ground electrode) must be in a straight line, if possible,
from the ground block to the grounding electrode. Also, splices in the conductor
between the electrode and grounding block are prohibited. Article 820-33 of the
National Electrical codes also states that, "Where coaxial cable is exposed to lightning
•.. the cable ground shall be connected to the grounding system of the building, as
close to the point of cable entry as practical." This can be either inside or outside the
home. Therefore, when selecting a location for the grounding block, try to make the
ground conductor as short and straight as possible and close to the cable entrance point
into the home.
The National Electrical Code also has specifications for the size of the grounding
conductor that connects to the ground electrode. This conductor must be a least a No.
10 copper wire or No. 8 aluminum wire. Insulation over the conductor wire is not
required. As with any cable, the grounding conductor must be securely fastened to a
surface to protect it from physical damage. If the conductor cannot be protected from
damage, the size of the wire should increase to withstand any physical strain placed
on it.
The National Electrical Code is also specific on acceptable ground electrodes. Some
possible electrodes are:
Grounded Interior Metal Water Piping (cold water).
Ground Rod (must be driven at least 8 feet into the ground)•
Grounded Metallic Service Raceway.
Grounded Electrical Service Equipment Enclosure.
There are also specific instructions for attaching the grounding conductor to ground-
ing electrodes. For more details on this, consult the National Electrical Code
handbook and any active codes in your area. Sections of the National Electrical codes
that apply to the DSS system are printed in appendix C of this manual.
Use the Following Steps to Install the LNB Cable:
1. Determine the location of the ground block. Remember to position this block to
allow a short and straight route for the ground conductor to the grounding.
electrode.
2. With two screws, secure the grounding block to a stable mounting surface.