Panels, breakers and circuits

How to read your electrical panel

A plain-language tour of the grey box in your basement: the main breaker, single- and double-pole breakers, spare spaces and the directory, and what you can safely check yourself.

Why breakers trip, and how to reset one safely

What a tripped breaker is telling you, the safe way to reset it, and the patterns that mean it is time to call an electrician instead.

100 A vs 200 A service: which does your home need?

What your service size means, why many older Edmonton homes are on 100 A or less, and how to tell whether an upgrade to 200 A is worth it for your plans.

Signs your electrical panel needs an upgrade

The physical warning signs, capacity limits and insurance flags that suggest your panel is due for replacement, and how to tell a panel replacement from a service upgrade.

Subpanels explained: when you need one

What a subpanel is, when it makes sense for a garage, basement suite, addition or full panel, and why it adds breaker spaces but not extra power.

Dedicated circuits: what needs its own breaker

Which appliances and equipment usually need a circuit of their own, why it matters for safety and reliability, and how to plan new circuits in a kitchen, garage or basement.

Whole-home surge protection: is it worth it?

How surges happen, what a surge protective device at your panel does, how it works with power bars, and what to expect from installation and upkeep.

Obsolete and problem panels in older homes

Fuse boxes, split-bus panels and panel brands that insurers ask about: what they are, why they draw attention, and how to get a clear answer for your home.

Load calculation basics: how much power do you really need?

How electricians work out whether your service can handle a new EV charger, heat pump or suite, explained in plain language with the watts-to-amps maths.

How to label your electrical panel

A safe, two-person method for mapping which breaker controls what, and how to write a panel directory that actually helps in an emergency.

Three-phase power basics for small businesses

What three-phase power is, the voltages you will meet in Alberta commercial buildings, and what to check before you buy equipment or lease a space.

GFCI and AFCI protection explained

What ground-fault and arc-fault devices protect against, where you will find them in an Alberta home, how to test them and what to do when they trip.

When your electrical panel is full: your options

What to do when there is no room for another breaker: tandem breakers, subpanels, a larger panel or a service upgrade, and how to tell which you actually need.