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3.
Primary lightning protection must be provided by the operator/customer according to local building codes
as part of the extra-building installation.
4.
To ensure compliance with clause 7 "Connection to Cable Distribution Systems" of EN 60950-1, Safety
for Information Technology Equipment, a secondary lightning protection device must be used for
in-building equipment installations with external antennas. The following device has been approved by
NovAtel Inc.:
Polyphaser - Surge Arrestor DGXZ+24NFNF-A
If this device is not chosen as the primary lightning protection device, the device chosen must meet the
following requirements:
•
UL listed, or equivalent, in country of installation (for example, TUV, VDE and so on) for
lightning surge protection
•
The primary device must be capable of limiting an incoming surge to 10kV
5.
The shield of the coaxial cable entering the building should be connected at a grounding plate at the
building's entrance. The lightning protection devices should have their chassis grounded to the same
ground near to the building's entrance.
6.
The primary and secondary lightning protections should be as close to the building's entrance as possible.
Where feasible they should be mounted onto the grounding plate itself. See also Figure 1, Primary and
Secondary Lightning Protection below.
Reference
Description
1
Primary Lightning Protection Device
2
Secondary Lightning Protection Device
3
External Antenna
4
WAAS G-III Reference Receiver
5
To Ground
6
Grounding plate or grounding point at the building's entrance
WAAS G-III Reference Receiver User Manual Rev 1
Figure 1: Primary and Secondary Lightning Protection
Notices
11
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