CB-01 · Main
Know what’s behind the panel door.
Himel Electric PH is an independent guide to home and building electricity in the Philippines: panelboards and breakers, wire sizing, grounding, brownouts, Meralco bills and typhoon-season safety, written for the person holding the flashlight.

CB-02 · Feeder
One panel feeds the whole house. Most of us have never read it.
The grey box by the door decides what happens when the aircon and the kettle run together, when the lights flicker before a brownout, and when floodwater reaches the outlets. We explain those decisions in plain language: what each part does, how the numbers fit, and when a job belongs to a licensed electrical practitioner.
CB-03 · Guide

Panelboard Primer
A tour of the box: the main breaker, the branch breakers, the bus bars, the neutral and grounding bars, and the directory card that should tell you which switch controls which room.
- Why two-pole breakers are common in Philippine homes
- What a trip is telling you, and what it is not
- Keeping a directory you can read in the dark
CB-04 · Guide

Wire & Breaker Sizing
The breaker protects the wire, not the appliance. This guide walks through square millimetres, ampacity, long runs and voltage drop, and why a bigger breaker is never the fix for a tripping circuit.
- Reading mm² and AWG on the jacket
- Typical residential pairings, and their limits
- Dedicated circuits for aircon, water heaters and ranges
CB-05 · Guide

Brownout Ready
Scheduled interruptions, sudden outages and the surge when power returns. What to unplug, what to keep charged, how to use a generator without endangering line workers, and what to check after a typhoon.
- A before, during and after checklist
- AVRs, surge protectors and inverter appliances
- Floodwater and the panel: when not to touch
CB-06 · Lockout
Four rules before any cover comes off
- Switch off the main.Then test that the circuit is dead with a proper tester. A switched breaker is not proof.
- Treat every wire as live.Two-line 230 V supplies mean both conductors at an outlet can carry voltage.
- Never bypass a breaker.Wire, coins or a larger rating hide the fault and remove the only thing protecting the cable.
- Know whose job it is.New circuits and panel work belong to a licensed electrical practitioner and may need an electrical permit from your local building official.