(a)  
Disconnect the airplane electrical lead from the terminal X1 of the lightning protector.

 (b)  
Connect the chassis ground lead (green lead) of the test set to the airplane frame ground.

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 (c)  Connect the input power lead (red lead) of the test set to a 115V, 400 Hz source according to the tables below.
 NOTE: Any of the terminals in the third column of the tables
____ below may be used to supply 115V, 400 Hz power to the lightning protector test set.
 ~........................................................... | Lightning | | | | Protector | Panel | Lightning Protector Power | | Equipment | Access | Source (Red Lead Connection) | | Number | | | ............................................................. | | | | | | | C951, GCB 1, | | | | TERMINAL L1, L2, or L3 | | X435 | | | | X436 | P514 | M481, GALLEY ELCU 1, | | X437 | | TERMINAL A1, B1, or C1 | | | | | | | | M3250, UTILITY ELCU 1, | | | | TERMINAL A1, B1, or C1 | | | | | 2............….............…................................1
 ~........................................................... | Lightning | | | | Protector | Panel | Lightning Protector Power | | Equipment | Access | Source (Red Lead Connection) | | Number | | | ............................................................. | | | | | | | C952, GCB 2, | | | | TERMINAL L1, L2, or L3 | | X441 | | | | X442 | P614 | M482, GALLEY ELCU 2, | | X443 | | TERMINAL A1, B1, or C1 | | | | | | | | M3251, UTILITY ELCU 2, | | | | TERMINAL A1, B1, or C1 | | | | | 2............….............…................................1
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 ~........................................................... | Lightning | | | | Protector | Panel | Lightning Protector Power | | Equipment | Access | Source (Red Lead Connection) | | Number | | | ............................................................. | | | | | | | C953, GCB 3, | | | | TERMINAL L1, L2, or L3 | | X444 | | | | X445 | P515 | M485, GALLEY ELCU 3, | | X446 | | TERMINAL A1, B1, or C1 | | | | | | | | M3252, UTILITY ELCU 3, | | | | TERMINAL A1, B1, or C1 | | | | | 2............….............…................................1
 ~........................................................... | Lightning | | | | Protector | Panel | Lightning Protector Power | | Equipment | Access | Source (Red Lead Connection) | | Number | | | ............................................................. | | | | | | | C954, GCB 4, | | | | TERMINAL L1, L2, or L3 | | X438 | | | | X439 | P615 | M486, GALLEY ELCU 4, | | X440 | | TERMINAL A1, B1, or C1 | | | | | | | | M3253, UTILITY ELCU 4, | | | | TERMINAL A1, B1, or C1 | | | | | 2............….............…................................1
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 (d)  
Connect the test-pulse output lead (blue lead) of the test set to the X1 terminal of the lightning protector.

 (e)  
Connect the ground lead of the test set (gray lead) to the X2 terminal of the lightning protector.

 (f)  
Set the switch on the test set to RESET.

 (g)  
Turn the voltage control knob on the test set fully
 counterclockwise.

 (h)  
Set the polarity switch on the test set to POSITIVE.

 S 865-011
 (4)  
Supply electrical power to the AC Buses (Ref 24-22-00/201).
　
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