Nautel NV7.5, Руководство по эксплуатации и обслуживанию

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NV10/NV7.5 Operations and Maintenance Manual
Page xiv Issue 3.4 2016-08-03
Use only a non-contact voltage probe or a safety voltmeter (available from vendors such as
Fluke, Ideal, and Teagam).
Use a proper lockout procedure to ensure that another worker cannot accidentally reapply
power while you are performing maintenance on any part of the transmitter or site.
Lightning Hazards
Before opening the transmitter and touching internal parts, remove and solidly ground the
antenna connection.
RF Hazards
A serious RF hazard and very high voltages exist in the vicinity of the antenna and its
networks during normal operations.
Toxic Hazards
There may be devices used in this equipment that contain beryllium oxide ceramic, which is
non-hazardous during normal device operation and under normal device failure conditions.
These devices are specifically identified with “(BeO)” in the Description column of the
Troubleshooting Manual’s parts list(s).
Do not cut, crush or grind devices because the resulting dust may be hazardous if inhaled.
Unserviceable devices should be disposed of as harmful waste.
Other Hazards
Ensure that appropriate fire alarms and fire extinguishers are available. Extinguishers must be
suitable for use on electrical fires.
Many other site safety risks exist. It is beyond the scope of this manual to identify all the risks
and procedures.
WARNING: It is not enough to ground the antenna terminal with
the antenna still connected. Even a small impedance in the ground
strap will result in lethal voltages during a lightning strike.