793-B725-02 CABLE SCHEDULE AND VOLTAGE DROP (DC).pdf
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- Attached to
- Excavator Barge Federal contract opportunity
- Solicitation number
- W912BU-23-B-0024
About this file
This document is a cable schedule and voltage drop calculation for a 95-foot towboat. It provides specifications for 12 circuits running 24VDC and 8 circuits running 12VDC from the pilot house main feed panels. The cable sizes, total circuit lengths, voltage drops, and maximum allowable voltage drops are specified for each circuit. The calculations use a cable resistance factor of 12.9 for copper and assume the battery bank is located in the pilot house. Systems covered include radar, AIS, GPS, navigation lights, security cameras, wipers, fans, depth sounders, radio equipment, telephones, and instrumentation panels.
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Text version
REV. DATE APRD.
□ Accepted
□ Accepted with Comments
□ Not Accepted Refer to Notations On:
□ Drawing
□ Return Document Resubmission: □ Required □ Not Required Approved Subj. to Approv. Reg. Agcy. Apprvl.
Reviewer:
Date Returned:
Return Document No.:
General Notes:
REVISIONS
DESCRIPTION
Original Issue
MDC REVIEW
DR. BY DES. BY CHK'D BY
IGS IGS SNT
APRD. FOR THE DIR. - CH. DES. BR. SIZE REV.
DATE
SHEET: COVER
MARINE DESIGN CENTER
100 PENN SQUARE EAST
PHILADELPHIA PA 19107
DEPARTMENT OF THE ARMY
MARINE DESIGN CENTER
CORPS OF ENGINEERS
LITTLE ROCK DISTRICT - TOWBOAT
95' x 39' x 10'
CABLE SCHEDULE &
VOLTAGE DROP (DC)
RECOMMENDED
/ / TIM KEYSER
PROJECT NO. DRAWING NO.
/ / GREG LEE A 2885 793-B725-02 -
July 11, 2013 SCALE: NTS
CIRCUIT CABLE Cm L A V VD VD% VD%
LOAD GROUP NUBMER SIZE TOTAL
MAIN FEED PANEL-D1 24VDC (PILOT HOUSE) D1 T-250 250000 60 80.0 24 0.495 2.06 2.06
RADAR #1 D1-1 T-6 6530 20 5.0 24 0.395 1.65 3.71
RADAR #2 D1-2 T-6 6530 20 3.8 24 0.300 1.25 3.32
AIS D1-3 T-6 6530 20 3.0 24 0.237 0.99 3.05
GPS UNIT D1-4 T-6 6530 20 1.0 24 0.079 0.33 2.39
NAV. LIGHT CONTROL PANEL D1-5 T-10 10380 20 10.0 24 0.497 2.07 4.14
NIGHT VISION CAMERA D1-6 T-6 6530 20 2.0 24 0.158 0.66 2.72
SWING METER D1-7 T-6 6530 20 6.0 24 0.474 1.98 4.04
P.H. WIPER #1, 2 D1-8 T-6 6530 20 3.6 24 0.284 1.19 3.25
FWD P.H. WINDOW FANS D1-9 T-10 10380 20 9.8 24 0.487 2.03 4.09
P.H. WIPER #3, 4 D1-10 T-6 6530 20 3.6 24 0.284 1.19 3.25
AFT P.H. WINDOW FANS D1-11 T-6 6530 20 6.0 24 0.474 1.98 4.04
P.H. WIPER #5, 6 D1-12 T-6 6530 20 3.6 24 0.284 1.19 3.25
MAIN FEED PANEL-D2 12VDC (PILOT HOUSE) D2 T-250 250000 60 60.0 12 0.372 3.10 3.10
DEPTH SOUNDER #1 D2-1 T-6 6530 20 2.0 12 0.158 1.32 4.41
DEPTH SOUNDER #2 D2-2 T-6 6530 20 2.0 12 0.158 1.32 4.41
WEATHER STATION D2-3 T-6 6530 20 1.0 12 0.079 0.66 3.75
VHF RADIO #1 D2-4 T-16 16510 20 5.5 12 0.172 1.43 4.53
INTERNAL TELEPHONE SYSTEM D2-5 T-6 6530 20 2.0 12 0.158 1.32 4.41
VHF RADIO #2 D2-6 T-16 16510 20 5.5 12 0.172 1.43 4.53
INSTRUMENT PANEL LIGHTS D2-7 T-6 6530 20 2.0 12 0.158 1.32 4.41
LOUDHAILER D2-8 T-16 16510 20 5.0 12 0.156 1.30 4.40
SATELLITE COMPASS D2-9 T-6 6530 20 1.0 12 0.079 0.66 3.75
SAT TV SYSTEM D2-10 T-10 10380 20 4.2 12 0.209 1.74 4.84
P.H. RED LIGHT D2-11 T-6 6530 20 1.0 12 0.079 0.66 3.75
VOLTAGE DROP & CABLE SELECTIONSVOLTAGE DROP & CABLE SELECTIONS
VD=(2KxLxI)/Cm K=12.9 FOR Cu
FROM BATTERY BANK TO PILOT HOUSE
File details come from the government source that posted it. Updated .