[Note]
The installation of a leakage relay on the machine can not become a reason for
elimination of the need for the load side grounding.
The load side grounding is indispensable for earliest possible detection of any
leakage caused in the generator. The absence of such grounding requires any
leakage to be detected by current flowing through the human body and is very
dangerous because the sensitivity of leakage relay provided on the machine is not
sufficient for detection of such current.
■ Precaution in grounding
Ф Select a shady and highly moist place, and burry the grounding rod in such way that its
top end is completely hidden in the ground.
Ф
If burying the grounding rod on the place that many pedestrians walk on, clamp the lead
wire to prevent catching on it.
© If the lead wire is not long enough for the connection, connect it as directed below:
(1) Connect the lead wire and the extension wire by soldering or sleeve coupling securely
and apply insulating tape to the connection.
(2) Do not burry the connection in the ground.
© Avoid the places within 2m of lightning conductor grounding location for burying of
grounding rod.
© Do not use a telephone set grounding conductor.
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