Engineering Calculators

Wire Sizing Calculator

Loads running 3+ hours require 125% sizing per PEC.

Reference Tables

Table 3.10.2.6(B)(16) — Allowable Ampacities of Insulated Conductors (up to 2000V, ≤3 Current-Carrying Conductors, 30°C Ambient)

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Table 10.1.1.5 — Insulation Type Temperature Ratings

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Table 3.10.2.6(B)(2)(a) — Ambient Temperature Correction Factors (30°C Base)

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Table 3.10.2.6(B)(3)(a) — Ampacity Adjustment for More Than Three Current-Carrying Conductors

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Source: Philippine Electrical Code (PEC) Part 1, 2017 Edition, published by Institute of Integrated Electrical Engineers of the Philippines, Inc..