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LANTNAVFACENGCOM A&E GUIDE
3/93
within. Manholes should be sized to accommodate splices. See
paragraph A.1.4.2.g.
c. Manholes should be minimum of 6'6" deep.
LOCATING MANHOLES (MH'S) AND HANDHOLES (HH'S)
A.2.1.3
a. Provide MH's/HH's where duct lines change directions.
b. Provide a MH/HH within 100 feet of every riser pole unless a
calculation is provided to justify a greater distance - under no
circumstances shall this greater distance exceed 200 feet.
c. MH separation on straight runs normally shall not exceed 400 feet. In
situations where greater separation is desired and this greater
separation is not prohibited by either excessive pulling tension or site
requirements, MH separation of up to 600 feet may be permitted.
See paragraph A.1.4.2.h.
A.2.1.4
DUCTBANKS
a. Minimum size for power distribution circuits in main duct runs shall be
5 inches, unless otherwise directed.
b. Provide adequate spare capacity for all ductbanks.
A.2.2
OVERHEAD DISTRIBUTION SYSTEMS
A.2.2.1
CRITERIA
a. MIL-HDBK-1004/1, MIL-HDBK-1004/2, and NFGS-16370, "Overhead
Electrical Work."
b. ANSI C2. "National Electrical Safety Code."
A.2.2.2
GENERAL RULES
a. Provide a detailed site plan with coordinated legend.
b. Use a separate symbol for each individual circuit; define each circuit
by voltage level and number, size and type of conductors.
c. Coordinate guying and conductor sag information shown on the
drawings with that shown in the specifications.
Attachment A-11





 


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