Hermosa–Duhat–Balintawak Transmission Line

Hermosa–Duhat–Balintawak Transmission Line (First Transmission Line on Expressway Right-of-Way or Alignment)
Hermosa–Duhat–Balintawak Transmission Line (First Transmission Line on Expressway Right-of-Way or Alignment)
	Steel poles 458-461, (8LI1DUH-QUE)055-058 (FDA-458, TDS-459–461)), with steel pole 458 is an anchor pole (taller due to Meycauayan overpass) while 459 and 460 are suspension poles with triangular design.
Location
Country	Philippines
Province	Bataan; Pampanga; Bulacan; Metro Manila
Coordinates	14°51′57″N 120°29′38″E; 14°47′14″N 120°57′10″E; 14°39′38″N 121°0′44″E
General direction	East, South, Southwest (due to curves), Southeast (due to cut-in connection with Duhat Substation)
From	Hermosa Substation
Passes through	NLEX San Simon–Pulilan segment, Pampanga River, and Candaba Viaduct; Meralco Duhat Substation; Harbor Link Interchange
To	Balintawak Substation
Ownership information
Owner	see Ownership, operations, and maintenance information and #Notes
Operator	see Ownership, operations, and maintenance information and #Notes
Construction information
Manufacturer of conductor/cable	China and owned by Herrera Engineering Corporation (HEC) with its privately owned cable stringing equipment
Cable layer	TASCR/AS
Contractors	Herrera Engineering Corporation (HEC)
Construction started	September 1993
Commissioned	June 1994
Decommissioned	De-energized when steel pole 143 was washed out by lahars; energized when the temporary H-frame pole was placed in 1995. The said pole was then used from October 1995 until it was retired in 2003 due to Lahar-Affected Transmission Line Relocation project that started by National Power Corporation (NAPOCOR/NPC).; De-energized in February 18, 2008 10:30 AM PST when National Transmission Corporation (TransCo) started the Hermosa–Balintawak Transmission Line relocation project.; The transmission line as a whole is not de-energized and decommissioned yet.;
Technical information
Type	Overhead transmission line
Type of current	HVAC
Total length	87.54 km (54.39 mi)
No. of transmission towers	506 (483 steel poles, 13 lattice towers, 9 portal towers, and 1 concrete pole)
Power rating	235–500 MVA
AC voltage	230 kV
No. of poles	484 (483 steel poles and 1 concrete pole)
No. of circuits	1

The Hermosa–Duhat–Balintawak Transmission Line (abbreviated as HB, RHB, 8LI1DUH-HER, 8LI1QUE-DUH, HDBTL, HDB, HD, and DB, most pronounced in English: Hēr-mōsa(ā)–Dühāt–Bā(a)lintâwak, coded as BAN-774 and codenamed as Heaven-01), is a 230,000 volt, single-circuit, two-part transmission line in Central Luzon and Metro Manila, Philippines that connects Hermosa and Balintawak substations of National Grid Corporation of the Philippines (NGCP), with line segment termination at Manila Electric Company (Meralco) Duhat substation in Duhat, Bocaue, Bulacan.

This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.