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TM 1-4920-448-13&P
3-20. Ground Rod/Strap - Inspect
3-20
This tasks covers: Inspection of ground rod and strap
INITIAL SETUP
Tools:
Tool Kit, Electrical Repairer, Army Aircraft, NSN 5180-00-323-4915
Multimeter, NSN 6625-01-139-2512
Personnel Required:
68F Aircraft Electrician
Reference Information:
TC 11-6
INSPECTION
HIGH VOLTAGE exists in the electrical system of this shop. All
electrical inspections, repairs or replacements shall be performed with
the power OFF and only by qualified electricians. Serious shock
hazards exist which could result in senous injury or death to personnel.
1. Check ground rod.
a.
b.
c.
d
Ensure ground rod (1) is firmly driven into ground
Ensure that clamp (2) and screw (3) are securely
fastened
Ensure there is no sign of oxidation
(2) or screw(3).
around Clamp
Ensure ground strap (4) is not frayed or broken
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