Bay–Biñan Transmission Line

The Bay–Biñan Transmission Line (abbreviated as 8LI1BIN-BYZ, 8LI2BIN-BYZ) is a 230,000 volt, double-circuit transmission line in Calabarzon, Philippines that connects Bay and Biñan substations of National Grid Corporation of the Philippines (NGCP).

Bay–Biñan Transmission Line
A lattice tower of the transmission line in Santo Tomas, Batangas.
Location
CountryPhilippines
ProvinceLaguna
Batangas
Cavite
Coordinates14°5′33″N 121°12′46″E
14°19′49″N 121°4′32″E
FromBay Substation
ToBiñan Substation
Ownership information
OwnerNational Power Corporation (until 2003)
National Transmission Corporation (2003–present)[lower-alpha 1]
OperatorNational Power Corporation (until 2003)
National Transmission Corporation (2003–2009)
National Grid Corporation of the Philippines (2009–present)
Construction information
CommissionedMarch 28, 2009 (March 28, 2009) (current line)
Technical information
TypeOverhead transmission line
Type of currentHVAC
Total length39.6 km (24.6 mi)
No. of transmission towers239 (194 steel poles, 45 lattice towers)
AC voltage230 kV
No. of poles194
No. of circuits2

Route description

The Bay–Biñan Transmission Line passes through the provinces of Laguna, Batangas, and Cavite. The original transmission line was commissioned by government-owned National Power Corporation (NAPOCOR).[lower-alpha 2] Transmission structures used on the current line, however, were commissioned by National Transmission Corporation (TransCo). Since 2009, the privately-owned National Grid Corporation of the Philippines (NGCP) operates and maintains the transmission line. It is located within the service area of NGCP's South Luzon Operations and Maintenance (SLOM) Districts 1 (South Western Tagalog) and 2 (South Eastern Tagalog). The current power line was completed on March 28, 2009 with the completion of the transmission line segment from steel pole 50 in Calamba to Biñan substation as part of Batangas Transmission Reinforcement Project (BTRP).[1][2][3] Lattice towers used on the Calamba–Biñan segment of the original transmission line, however, are still present despite that it is now abandoned upon the completion of the current line.

A portion of the transmission line, using steel poles, along South Luzon Expressway (SLEx) in Laguna.

The transmission line starts at Bay substation and enters Batangas after lattice tower 4. It passes through the barangays of Santa Elena, San Pablo, San Pedro, San Vicente, San Miguel, San Bartolome, San Antonio, Santiago, San Rafael, and Santa Anastacia in Santo Tomas. Before re-entering Laguna, it passes through Light Industry and Science Park III. It re-enters Laguna upon crossing Siam-Siam Creek, runs parallel with South Luzon Expressway (SLEx), and goes farther from the said expressway. The line then utilize the eastern side of SLEx from Calamba Exit to Carmona Exit and again uses steel poles after lattice tower 48. It continues straightforward, intersects with Calaca–Laguna Technopark–Biñan transmission line after passing Greenfield City/Unilab (Mamplasan) Exit, enters Cavite upon crossing Carmona River, exits SLEx at Carmona Exit, and run parallel with Governor's Drive and General Malvar Street. The power line again enters Laguna and ends at Biñan substation.

Components

The transmission line consists of 194 steel poles (1–3, 49–239) and 45 lattice towers (4–48).

Notes
  1. As stated on High Voltage signs placed on steel poles 49–239.
  2. Remaining portion of the original transmission line passes through establishments, institutions, and residential areas located within Biñan, Santa Rosa, Cabuyao, and Calamba.

References
  1. "Philippines: Electricity Market and Transmission Development Project" (PDF). www.adb.org. Retrieved September 24, 2020.
  2. "TransCo Accomplishment Report For CY 2015" (PDF). www.transco.ph. Retrieved September 24, 2020.
  3. "NGCP 2009 Transmission Development Plan" (PDF). www.doe.gov.ph. Retrieved September 25, 2020.
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