Chapter 4. MAINTENANCE
56 | ADTS 405 Mk2 Instruction Manual-English © 2015 General Electric Company – All rights reserved.
Figure 4-4: ADTS 405R AC Fuse Positioning
4.5 Cable tests
CAUTION Do the check detailed in Testing and Fault Finding, Section 5 prior to
performing a cable test.
Hand Terminal Cables - parts AS405-33-1891M0 (2m) and AS405-34-1891M0 (18m)
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 six pins at each end of each cable assembly.
The measured resistance must not exceed 2.0 ohms.
Note: This resistance value is the expected maximum value for the 18 metre
(60ft) cable. The resistance value varies depending on the length of the cable.
c. Measure insulation using the Insulation tester (item 2, Table 4-3), set to the 250V test range.
d. Measure the insulation resistance between the shell of the connector and all individual pins
in turn.
e. Measure the insulation resistance between the shell of the applicable connectors and all
pins in turn.
f. Measure also the resistance between individual pairs of pins (i.e., 1-2, 1-3, 1-4, 1-5, 1-6,
g. 2-3, 2-4, 2-5, 2-6, 3-4, 3-5, 3-6, 4-5, 4-6 and 5-6). In all cases the resistance must exceed 10 M
ohms.
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