21R: Interior
Electrician
Major Duties: The interior electrician supervises
or performs installation and maintenance of interior electrical
systems and equipment. Duties for MOS 21R at each level of
skill are:
- Skill Levels
- Skill Level 1 MOSC 21R1O. Installs
and maintains interior electrical systems up to 600
volts. Reads and interprets drawings, plans, and specifications.
Installs service panels, switches and electrical boxes.
Installs metallic and nonmetallic sheathed cable, conduit
and special electrical equipment. Installs service drop.
Uses test equipment to test operational condition of
circuits. Assists in performance of combat engineer
missions.
- Skill Level 2 MOSC 21R2O. Supervises
installation and maintenance of interior electrical
systems. Plans electrical system layout using drawings,
plans, specifications, and wiring diagrams. Coordinates
construction planning and advises on electrical construction.
Uses test equipment to isolate malfunctions and repairs
defects in systems and components. Inspects interior
electrical systems/components for proper installation
in accordance with National Electrical Code and local
ordinances.
Physical demands rating and qualifications for initial
award of MOS. The interior electrician must possess the
following qualifications:
(1) Physical Demands Rating:
heavy
(2) Physical Profile: 111221
(3) Normal color vision
(4) Minimum score of 95 in aptitude
area EL.
(5) Formal training (completion of MOS 21R course conducted
under the auspices of the U.S. Army Engineer School) mandatory
or meet civilian acquired skills criteria listed in AR 601-210.
(6) No record of acrophobia or claustrophobia.
MOS 21R had the alphanumeric designator of 51R prior
to fiscal year 2004.
The major duties, physical demands, physical profile, and
skill levels were obtained from Army Pamphlet 611-21.
MOS List for Corps of Engineers
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