8
Hazardous voltages during testing.
Will cause death, serious injury or property damage.
The user must provide test cables. These cables must be adequate for
the test voltages used, and must be in good condition.
The use of inadequate test cables will result in dangerous conditions
which will cause death, severe injury or equipment damage.
Test ports
Depending on the device type (refer to Table
1: Type 38-3AH3-GTD ground and test
device types on page 7), one or two sets of
three-phase test ports are provided on the
front panel. The lower test ports are
connected to the lower studs. The upper
test ports are connected to the upper studs.
Test probes
Depending upon the device type (refer to
Table 1: Type 38-3AH3-GTD ground and test
device types on page 7), a set of three or six
test probes are provided as a convenient
means of connecting test leads to the
device. Test probes are inserted into deep
wells and make an electrical connection as a
bayonet terminator enters the socket with a
detent action. The probes are fully self-
aligning. The probes can be secured in place
by positioning the sliding test port to a third
position, which engages the test probe. This
feature also verifies that the probes are fully
inserted.
Test probes are provided which must be
fitted with test cables by the user. The
choice of cable must be carefully reviewed
by the user to ensure that it is adequate for
the intended purpose.
Cables required for use with test probes are
not provided with the ground and test
device. The user must provide these cables
to suit the test equipment (for example,
dielectric high-potential test sets) to be
used. The cables do not provide a grounding
function, which is a function of the ground
and test device itself, so the cables are not
required to be rated for the available fault
current.
Special attention to cleanliness of the cables
and the condition of the insulation is an
essential requirement for proper use. It is
the user's responsibility to select, provide,
and maintain test cables.
Note:
Do not use any cleaning
compounds containing chlorinated
hydrocarbons such as trichlorethylene,
perchlorethylene, or carbon tetrachloride.
These compounds will damage the
phenylene ether copolymer material
used in the barriers and other insulation
on the ground and test device.
