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Avoid locating the eNB in areas where there may be extreme temperatures, harmful gases,
unstable voltages, volatile vibrations, loud noises, flames, explosives, or electromagnetic
interference (e.g., large radar stations, transformer substations). Avoid areas that are prone to
impounded water, soaking, leakage, or condensation.
2.5 Grounding & Lightning Protection
You must protect the eNB, antenna, and GPS against lightning. All Nova eNBs use a floating
ground on the power line. Following are guidelines concerning grounding.
The yellow-green ground wire must be at least 16mm
In principle, always place the grounding as near as possible to the equipment.
Connect to a reliable outdoor grounding point (earth) using one ground screw.
The connection of the grounding points and ground bar need to be tight and reliable.
Rustproofing the terminals, e.g., with anti-oxidant coating or grease, is required.
2.6 Weatherproofing
To protect the connection points from weather and climate, clean each connection point
before installing cold shrink tubes, per the following (Figure 2-2).
1.
Insert the cable into the cold shrink tube.
2.
Tighten the connector.
3.
Push the cold shrink tube to the top joint, and pull out the strip.
4.
Ensure the cold shrink tube is tightly fitted with the connection.
Figure 2-2: Weatherproofing
in diameter.
2
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