115/22 kV NONG DEUN SUBSTATION

SALIENT FEATURES:

Status: Completed
Client: Electricité du Laos (EDL)
Location: Savannakhet Province, Lao PDR
Type of Contract: Full EPC (Yellow FIDIC type)
Beginning of Construction: Jan 2012
End of construction: Feb 2013
Construction period: 1 year and 1 month.

SCOPE OF WORK/SUPPLY:

Part A: Transmission Line

115 kV Transmission Line

• Double circuit 115 kV transmission line T-off from line route Pakbo-Kangkok Substation to Nong Deun Substation 1.4 km-circuit length. The tower is vertical double circuit configuration, the conductor is ACSR “Hawk” 240 aq.mm. and 24 core OPGW 40 sq.mm. about 4 km from Nong Deun Substation to Pakbo Substation.

22 kV Transmission Line

• Four circuit transmission line on concrete pole and underground from Nong Deun Substation to Existing 22 kV distribution line by conductor is SAC 185 sq.mm. and 300 sq.mm.
• Two circuit transmission line on concrete pole and underground from Nong Deun Substation to the Dead End terminal poles by conductor XLPE 300 sq.mm.  (1Cx3) route 1.5 km.
• One circuit 22 kV underground main feeder power transformer incoming switchgear by conductor XLPE 500 sq.mm. (1Cx3x2) Route 100 m.

Part B: Substations

115/22 kV Substation

• Supply, Construction and Installation of 115 kV outdoor Switchyard with:
• Double bus bar comprises of four 115 kV bay and space 8 bay.
• 22 kV power & control protection switchgear 10 feeder.
• Communication & Tele-protection:
1. Radio VHF System, PABX System
2. PLC & Tele-protection
• SCADA & CSCS
• UXO clearing area site and line route.
• Civil work:
1. Control building 28x16 sq.mm. and switchyard 150x110 sq.mm.
2. Foundation equipment, fence, lighting system etc.