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Dasmariñas – Las Piñas Transmission Line (The Tallest Transmission Line)
Some of its steel poles along Aguinaldo Highway in Dasmariñas, Cavite.
Location
Country	Philippines
Province	Cavite Metro Manila
Coordinates	14°18′41″N 120°57′9″E / 14.31139°N 120.95250°E / 14.31139; 120.95250 (Dasmariñas Substation) 14°28′38″N 120°58′25″E / 14.47722°N 120.97361°E / 14.47722; 120.97361 (Las Piñas Substation)
From	Dasmariñas Substation
To	Las Piñas Substation
Ownership information
Owner	see Technical description
Operator	see Technical description
Construction information
Construction started	May 27, 1998; 26 years ago (May 27, 1998)
Commissioned	July 15, 1999; 25 years ago (July 15, 1999)
Technical information
Type	Overhead transmission line
Type of current	HVAC
Total length	21 km (13 mi)
No. of transmission towers	210 (209 steel poles and 1 lattice tower)
AC voltage	230 kV
No. of poles	209
No. of circuits	2

The Dasmariñas – Las Piñas Transmission Line (abbreviated as 8LI1DAS-LPI, 8LI2DAS-LPI and DLPTL) is a 230,000 volt, double-circuit transmission line in Metro Manila and Calabarzon, Philippines that connects Dasmariñas and Las Piñas substations of National Grid Corporation of the Philippines (NGCP).

History

The Dasmariñas – Las Piñas Transmission Line finished construction in July 15, 1999 but the power line only went into service when the Las Piñas substation was commissioned on November 30, 2001.

Throughout its existence, several steel poles were painted with aluminum paint to protect them from corrosion.

Route description

The Dasmariñas – Las Piñas Transmission Line passes through the cities of Dasmariñas, Imus, and Bacoor in Cavite, and Las Piñas in Metro Manila. It is located within the service area of NGCP's South Luzon Operations and Maintenance (SLOM) District 1 (South Western Tagalog).

The transmission line starts at Dasmariñas substation, turns left into Ramon Tirona Avenue, and run parallel with Aguinaldo Highway until Bacoor. Upon approaching Bacoor Junction, it will parallel with Aguinaldo Boulevard until Bacoor Exit of Manila-Cavite Expressway (CAVITEX). It then utilize the eastern side of CAVITEX until its terminus at Las Piñas substation.

Ownership, operations, and maintenance information

The transmission line was originally operated, maintained, and owned by the government-owned National Power Corporation (NAPOCOR/NPC) from November 30, 2001 to March 1, 2003. Operations, maintenance, and ownership of the line then transferred to another government corporation National Transmission Corporation (TransCo) on March 1, 2003 where it operated and maintained the line until January 15, 2009. The line's operations and maintenance was transferred to privately-owned National Grid Corporation of the Philippines (NGCP) on January 15, 2009 where it now operates and maintains the power line since then.

As a result of the turnover from TransCo to NGCP, and Republic Act (RA) 9511 and concession agreement between both parties which authorized the latter to exercise the right of eminent domain necessary for the construction, expansion, and efficient maintenance and operation of the transmission system and grid and the efficient operation and maintenance of the subtransmission systems which have not yet been disposed by TransCo where NGCP acts as the temporary owner of these assets and facilities and they will be transferred to TransCo once the 50-year NGCP concession period ends on December 1, 2058, lands where the transmission structures stand and their pedestals or foundations and right-of-way or portions of a power line acquired and designated, and facilities built or placed whether using secondhand (NAPOCOR/NPC and TransCo-era) with a new function or entirely new structures from January 15, 2009 (steel pole 208A) are operated, maintained, and owned by NGCP, while those that were placed or built, acquired, and designated from November 30, 2001 to January 14, 2009 are owned by TransCo and operated and maintained by NGCP, as one mandate of the former is to handle all existing cases, including right-of-way and claims which accrued prior to the transfer of power grid operations and maintenance to the latter on January 15, 2009. Table showing the ownership information on each lands where the structures and their respective foundations and pedestals stand, and right of way is on the technical description section.

Technical description

References

1. "Project Completion Report on the Power Transmission project (Loan 1288-PHI) to the Philippines (December 2002)" (PDF). www.adb.org. Retrieved August 3, 2020.
2. "Operations - National Grid Corporation of the Philippines: Business Scope". ngcp.ph. Retrieved April 12, 2021.

• Energy infrastructure completed in 1999
• Transmission lines in the Philippines
• 1999 establishments in the Philippines
• Buildings and structures in Metro Manila
• Buildings and structures in Cavite