jounee
SUPPORT
JOHNSTON ATOLL
F &S NO.
0304C
USER
TITLE
Inter-Island Power Distribution System
STRUCTURE FACILITY NO.
JTF
SCIENTIFIC STATION NO.
None
gop
None
FOD
FUNDING
AGENCY
AEC
($000)
ENGR
PROC
CONST
TOTAL
PRE-GO
Prior Cost
29.2
660.9
690. 1*
TOTAL
29.2
660.9
690. 1s
FURN
COMPLETED
DESCRIPTION
The inter-island power distribution system (completed in 1968)
distributes power at 4160 volts from Johnston Island to Akau,
Hikina and Sand
Islands. This system utilizes 500 MCM, 5 kv submarine cable to form a closed
loop tie-in from the power plant at Johnston Island to each of the above islands.
Two feeders are provided from the Johnston Island power plant. Feeder Number 9 is routed through Sand Island to Hikina Island. Feeder Number 10 is
routed to Akau Island. Feeder Number 9/10 inter-connects Hikina and Akau
to complete the loop. The loop tie-in arrangement described above provides
100 percent power backup at Hikina and Akau Islands. One of the 300 kw generators previously located on Johnston Island has been installed on Hikina Island
which provides additional power backup.
DRAWINGS:
91-084-Cl1 thru C4
91-084-S1
91-084-E1 thru E5
JS 91-084-C100 thru C103
“Does not include cost for Sand Island Power Distribution (see F&S No.
3-19
0304G).
VOL I