27
PowlVac
®
Electrically-Operated Ground and Test Device
IB-65060
C. PROCEDURE FOR REMOVING TEST PROBES
The CON EDISON and CUSTOMER ground and
test devices are supplied with similar interlock
functions. However, the CON EDISON device
uses key KU for key lock K1, and the CUSTOMER
device uses key KCF for key lock K1. Key KU and
Key KCF are NOT INTERCHANGEABLE.
Although these operating procedures contain illustra-
tions of the CON EDISON device, these procedures
also apply to the CUSTOMER device. For proce-
dures that refer to key KU for the CON EDISON
device, the same procedures apply to key KCF for
the CUSTOMER device.
Perform the following steps:
1.
Obtain key KB from the Con Edison lock box on
premises.
2.
Transfer key KB to key lock K1 and rotate (Figure
61). The ground and test device control circuit is
enabled. Key KB is captive and key KU is
available (Figure 62).
3.
Verify that the Control Selector Switch is in the
OFF position (Figure 63).
4.
Connect the umbilical cord of the Remote Oper-
ating Station to the ground and test device
(Figure 64). Lock the plug into the connected
position by turning the plug clockwise.
5.
Move the Control Selector Switch to the CLOSE
position (Figure 65).
6.
Turn the Remote Operating Station ON and
depress the CLOSE push button switch on the
Remote Operating Station to close the ground
and test device (Figure 66).
7.
Move the Control Selector Switch to the OFF
position (Figure 67).
8.
Turn the Remote Operating Station OFF and
disconnect the Remote Operating Station umbili-
cal cord from the ground and test device (Figure
68).
9.
Rotate key KU in key lock K1 electrically locking
the ground and test device in the CLOSED
position; key KB is available (Figure 69).
10. Transfer key KB to key lock K4 (Figure 70).
Rotate key KB, electrically and mechanically
locking the ground and test device in the
CLOSED position. Key KB is captive and key
KD is available.
11. Transfer key KD to key lock K5 (Figure 71).
Rotate the key KD to unlock the test port shut-
ters. Key KD is now captive.
12. Open the test port shutters (Figure 72).
13. Remove the test probes from the test ports
(Figure 73). Close the test port shutters.
14. Rotate key KD to lock the test port shutters. Key
KD is now available (Figure 74).
15. Transfer key KD to key lock K4 and rotate (Figure
75). Key KD is now captive and key KB is
available.
16. Transfer key KB to key lock K1 and rotate (Figure
76). The ground and test device control circuit is
enabled. Key KB is captive and key KU is
available.
17. Verify that the Control Selector Switch is in the
OFF position (Figure 77).
18. Connect the umbilical cord of the Remote
Operating Station to the ground and test device.
Lock the plug into the connected position by
turning the plug clockwise (Figure 78).
19. Move the Control Selector Switch to the OPEN
position (Figure 79).
20. Turn the Remote Operating Station ON and
depress the OPEN push button to open the
ground and test device (Figure 80).
21. Move the Control Selector Switch to the OFF
position (Figure 81).
22. Turn the Remote Operating Station OFF and
disconnect the Remote Operating Station umbilical
cord from the ground and test device (Figure 82).
23. Rotate key KU in key lock K1 (Figure 83). The
ground and test device is now electrically disabled.
Key KU is captive and key KB is available.
24. Disconnect the compartment secondary discon-
nects from the ground and test device. (Figure
84).
25. Transfer key KB to key lock K2 and rotate Key
KC (Figure 85). The ground and test device is
now mechanically locked OPEN. Key KB is
captive and key KC is available.
