The number of transmission structures in the Philippines (towers and poles) are approximately 27,473 structures and number may be increased as more structures are constructed. 500 kV: Bulk transmission voltage in Luzon, using quadruple-bundle conductors.230 kV: Main transmission voltage in Luzon, and bulk transmission voltage in Visayas and Mindanao.Usually single-conductor, some double-bundle 138 kV: Main transmission voltage in Visayas and Mindanao. ![]() Generally used for sub-transmission (see below) 115 kV: Used in parts of Ilocos for transmission. ![]() The transmission network in the Philippines uses a mix of lattice towers and steel, concrete or wood poles, the latter common on power lines placed along road or railroad rights of way in urban areas and on lines where most of their portions have lower clearance between the ground, buildings, and vegetation and the line. It is intended to be a guide for mapping power lines from aerial imagery and on-the-ground observation. This page aims to coordinate the efforts of mapping electricity-related objects in the Philippines.
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