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 1. Blade stop block
2. Arc chute contacts
3. Auxiliary blade
4. Spacer
5. Arc chute side
6. Primary contact blade
7 Auxiliary blade spring
8. Camming screw
9. Lock nut
10. Auxiliary blade release hook
11 Operating rod
Figure 3-6 Unit pole closing.
CAUTION
3-11. Lightning Arrestors
a. Inspect insulator for damage, if cracked or
Lightning arrestors are live equipment.
burned
No contact should be made with them
while line is energized. Current flows
b. Check anti make sure mounting is tight.
through an arrestor from line to
ground. A potential gradient exists that
c. Check both top and bottom connections for
is hazardous if handled while energized.
tighteness and cleanliness.
3-10
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