User:TagaSanPedroAko/Philippines Tagging/Power lines

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This page focuses on mapping of power infrastructure in the Philippines.

Why map power infrastructure in the Philippines?

Power lines, whether they are the transmission lines from power plants to large substations, the sub-transmission lines from the large substations to a city's/municipality's substation (there may be more than one substation, some serving industrial customers), and the distribution lines from a city's/municipality's substation to houses and businesses, can be landmarks when navigating. Also, mapping power lines and facilities depicts the pathways of power from a power plant to its customers, whether it is an ordinary house or a large factory using large equipment requiring a higher voltage of electricity to work.

Power lines by voltage

Voltage class Voltage Image Supports (pole/tower) Description Tags
Low voltage 220/440 volts (Split-phase) Poles Two cables or bare wires, carrying a phase to neutral voltage of 220 V 60 Hz and phase to phase voltage of 440 V 60 Hz (Split-phase power is primarily used in North America, but used here in the Philippines as an American influence; however, using a higher voltage of 220 V 60 Hz over the 120 V 60 Hz in the US). Supported by wood, concrete or steel poles. Used to carry power for household distribution and street lightning.


220/380 volts (Three-phase) Poles Three cables or bare wires (with one neutral wire, usually grounded from a tap from a distribution transformer), carrying a phase to neutral voltage of 220 V 60 Hz and phase to phase voltage of 380 V, 60 Hz. Primarily used by large commercial and industrial users. power=cable

location=overhead voltage=380 or power=minor_line

Medium voltage 20,000 volts (20 kV) Poles Voltage for primary distribution lines with one cable, primarily in residential areas. minor_line

voltage=20000 operator=name of operator of line (e.g. Meralco)

34,500 volts (34.5 kV) 0811jfAurora Boulevard Santa Cruz Overpass Bridge Streets Barangaysfvf 10.jpg Poles Voltage for three-phase distribution lines. Sometimes, they can be insulated cables, mounted on poles, e.g. like when it cannot cross an obstacle on the level where they should pass, or placed underground, e.g. to avoid clutter on scenic locations. minor_line, cable
High voltage 69,000 volts (69 kV) Wooden, concrete or steel poles, with insulators hanging from crossbars or mounted on the pole itself, or sometimes, wooden, concrete, or steel H-frame towers. Sub-transmission grid voltage. Usually single-circuit lines with 3 wires supported by strain insulators hanging from 2 or 3 crossbars mounted on poles. Primarily owned by the National Grid Corporation of the Philippines and provincial electric cooperatives.
115, 000 volts (115 kV) Tagaytayjf9771 08.JPG
  • Sub-transmission poles, mainly made of steel, concrete, or wood, usually with insulators attached to the pole itself, or rarely, with insulators hanging from a cross-arm, usually on two levels.
  • Lattice towers (used on the San Esteban - Bantay, Bantay - Currimao, and Currimao - Laoag transmission lines)
Typically sub-transmission voltage, primarily used by Meralco, but also used by NGCP on some transmission lines in Ilocos Region and a few sub-transmission lines. Cables can be a single conductor or double-bundle.
138,000 volts Lattice towers Used on the Visayas and Mindanao grids.
Ultra high voltage 230, 000 volts (230 kV) 02828 jfSan Luis Roads Fields Mangga Dalayap Tenejero Barit Candaba Pampangafvf 29.JPG Lattice towers, or tubular steel towers (for aesthetic purposes in order to reduce visual impact on the surroundings) Typically double or single-circuit lines. Conductors are usually double-bundle, but single conductor or quadruple-bundle are also used. Voltage is used as a "backbone" voltage on the Visayas and Mindanao grids.
350,000 volts (350 kV) Towers (steel lattice) Used on the Leyte-Luzon high voltage direct current transmission line/underwater cable (HVDC Leyte-Luzon)
500,000 volts (500 kV) JfSanMiguel8745SalanganBulacanfvf 11.JPG Lattice towers Voltage for long distance high voltage AC "backbone" lines in Luzon, like the Dasmariñas-Alaminos (-Ilijan Power Plant) - Tayabas transmission line, Tayabas - San Jose del Monte transmission line, and the San Manuel - San Jose del Monte transmission lines. Lines are composed of quadruple-bundle conductors, supported on very tall towers, and phases are transposed on some places.

More info about power line voltages can be seen at Classification of Powerlines.

Lines mapped, to be mapped, and still being mapped


  • Relation 6466065 (XML, Potlatch2, iD, JOSM, history, analyze, manage, gpx) San Pedro - Pamplona Subtransmission Line (Still incomplete. Segments in Las Piñas toward Pamplona substation are needed.
  • LIIP - Laguna Technopark Subtransmission Line (still incomplete)
  • Biñan - Balibago Subtransmission Line (not yet added.
  • Amadeo - Tagaytay 2 Subtransmission Line (only a few segment and towers added, but needs a relation)

National Grid Corporation of the Philippines

69,000 volts (69 kV)

  • Batangas - Bolbok 2 69 kV Line (partially complete)
  • Batangas - Bolbok 1 69 kV Line (complete)
  • Batangas - San Miguel Purefoods - Lafarge 69 kV Line (not yet added)

115,000 volts (115 kV)

  • San Esteban - Bantay Transmission Line
  • Bantay - Currimao Transmission Line
  • Currimao - Laoag Transmission Line
  • Dasmarinas - CEPZA 115 kV Line
  • Dasmarinas - Ternate 115 kV Line

138,000 volts (138 kV)

  • Pulangi IV - Kibawe Transmission Line

230,000 volts (230 kV)

  • Bauang - Balaoan - Sudipen - San Esteban Transmission Line (complete)
  • Magat Dam - Santiago Transmission Line (complete, but needs relation)
  • Santiago - Gamu Transmission Line (complete, but needs relation)
  • Santiago - Bayombong Transmission Line (complete)
  • Malaya - Taytay Transmission Line (complete)
  • Calaca - Amadeo Transmission Line (complete, but has missing relation members)
  • Calaca - Biñan Transmission Line (complete)
  • Batangas - San Lorenzo/Santa Rita Transmission Line (complete)
  • San Lorenzo/Santa Rita - Calaca Transmission Line
  • Tayabas - Gumaca Transmission Line (not yet added)
  • Pagbilao 1 - Tayabas Transmission Line (not yet added)
  • Naga - Tayabas Transmission Line (not yet added)
  • Tiwi - Naga Transmission Line (not yet added)
  • Tiwi - Daraga - Naga Transmission Line (not yet added)
  • Bacman Geothermal - Daraga Transmission Line (not yet added)
  • Pulangi 1 - Davao City Transmission Line (has a large gap on Marilog District, Davao City segment)

500,000 volts (500 kV)

Power features

This section shows tags for power-related infrastructure, like power plants (also called power stations), generators, substations, transmission lines and towers, utility poles, distribution lines, and transformers.

  • Power plants/stations=power=plant. Do not tag them as power=station.
  • Transmission towers=power=tower. Add the tower designs and types if possible.
  • Sub-transmission poles=power=tower. This tagging distinguishes them from the smaller poles, tagged power=pole, holding distribution lines, usually 34.5 kV three-phase AC lines or local 220/380-440 V three-phase AC.
  • Utility poles=power=pole. Tag their height, material, and operator if possible.
  • Transformers=power=transformer. Tag the type, phases, rating and voltages if possible. For pole-mounted transformers, please tag as power=pole with transformer=distribution, plus other tags mentioned on the previous sentence if possible.
  • Transmission lines (115/138 kV and above)=power=line (If undersea cable, tag as power=cable
  • Sub-transmission lines (69 to 115 kV)=power=line. This tagging is preferred over power=minor_line, as in this case, should be reserved for lines with voltages below 50 kV.
  • Distribution lines (220/440 V split-phase to 20 kV)=power=minor_line. If it is an overhead or underground insulated cable, tag as power=cable, plus relevant information, like circuits, voltage, and location.


Image Tags Notes
JfSanMiguel8745SalanganBulacanfvf 10.JPG

Transmission tower
operator=National Grid Corporation of the Philippines
Transmission line
operator=National Grid Corporation of the Philippines

Jf6393Santa Barbara, Bacolor Flood, Pampanga Bridgefvf 28.JPG

Transmission tower
power=tower structure=tubular material=steel design=monopolar tower:type=anchor

Lagunajf8737 01.JPG Sub-transmission pole

design=monopolar_triangle(Insulators are mounted on the wood pole instead of hanging from a crossbar, used as a cross-arm, nailed to the pole, but it correctly describes the arrangement of the wires carried by the pole.This design can be added to the existing design list at power=tower.)

Rendering of substations

This section shows renderings of some electric substations in the Philippines using Maperitive rules (made by polderrunner).

Meralco Pamplona Substation

Blue lines - 115 kV sub-transmission lines, White borders - Busbars, Red dots - Switches, Two circles - 115 kV/34.5 kV transformers, Thin green lines - 34.5 kV disribution lines

Grid network maps

This section shows renderings of the grid network in the Philippines (including sub-transmission networks owned by the National Grid Corporation of the Philippine and electric companies/cooperatives) using Maperitive rules (made by polderrunner). But, maps here will be divided in the province level