Cable tests
© 2015 General Electric Company – All rights reserved. ADTS 405 Mk2 Instruction Manual-English | 57
AC Power Regional Line Plug Cables - parts AA405F-1 to AA405F-16
a. Prepare to measure continuity using the DMM (item 1, Table 4-3) set to the applicable
resistance range.
b. Measure the continuity between corresponding ADTS connector pin and the regional power
plug pin using the connectivity table 4-4 below. The measured resistance must not exceed
0.8 ohms.
Note: This resistance value is the expected maximum value for the longest 10
metre (32ft) cables. The resistance value varies depending on the length of the
cable.
c. Prepare to measure insulation using the Insulation tester (item 2, Table 4-3), set to the 500V
range. This test will be most practically performed at the regional line plug end of the cable.
d. Measure the insulation resistance between Live and Protective Ground.
e. Measure the insulation resistance between Neutral and Protective Ground.
f. Measure the insulation resistance between Live and Neutral.
g. In all cases the insulation resistance must exceed 2 M ohms.
Table 4-4: AC Input Connector
DC Power Cable – part AS405-31-1891M0
a. Prepare to measure continuity using the DMM (item 1, Table 4-3) set to the applicable
resistance range.
b. Measure the continuity between corresponding ADTS connector pin and the conductors at
the open end of the cable using the connectivity table 4-5 below. The measured resistance
should not exceed 0.5 ohms.
Note: This resistance value is the expected maximum value for the 5 metre
(16ft) cable length supplied.
c. Prepare to measure insulation using the Insulation tester (item 2, Table 4-3), set to the 500V
range. This test will be most practically performed at the open end of the cable.
d. Measure the insulation resistance between Grey (+28V) and Green (Protective Ground).
e. Measure the insulation resistance between White (0V) and Green (Protective Ground).
f. Measure the insulation resistance between Grey (+28V) and White (0V).
g. In all cases the insulation resistance must exceed 2 M ohms.
Table 4-5: DC Input Connector
ADTS Pin European Colour U.S.A. Colour Function
1 Brown Black Live
4 Blue White Neutral
EARTH Green/Yellow Green Protective Ground
ADTS Pin Cable Colour Function
1 Grey + 28V
2 White 0V Return
EARTH Green Protective Ground
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