X-band 12kW Upmast Magnetron Transceiver
Chapter 6: Cabling guidance
HBK-2300-3 Issue 2
Page 24 of 40
6.2
Grounding
All parts of the system MUST be fully and correctly connected to a proven earth point prior to
connecting any source of AC power.
CONNECTION POINT
All Kelvin Hughes equipment is fitted with a single protective earth connection point which is indicated
on the mechanical installation drawings.
The preferred minimum requirement for the path to the path to the ground (bonded or non-bonded) is
via a flat tinned copper braid, with a 30 A rating (1/4 inch or greater).
In any grounding system, always keep the length of connecting braid or wires as short as possible.
CONDUCTIVITY TESTS
During installation and maintenance, the earth connections must be tested for conductivity using a
high current impedance meter such as a Megger or similar.
WRIST STRAPS
Fully isolate and mechanically disconnect all sources of AC before attaching ESD protective wrist
straps to the various points in the system.
CABLE SCREENS
Unless otherwise specified, cable screens should be connected to a proven and tested earth point by
use of connectors or cable glands.
WARNING
The system must NOT be operated or have AC power switched ON with
Earth/ Grounding points disconnected
