To most people, circuit panels are the first place they go when power fails to a room.  The loud click heard when a space heater or hair dryer overloads a circuit usually calls for a quick trip to flip a circuit breaker back on.  Every building depends on the circuit panel for safety and electrical management for the home.  The electrical panel for your home, along with the attached circuit breaker, serves to delegate power throughout the home.  By splitting up power demands, it prevents overloads in separate rooms and isolates individual features and appliances.

You may be wondering why we need to split up circuits the way we do.  If all of our devices operate on 120 volts, why do we need separate circuits?  The answer has to do with the physical quirks of wiring.  You see, while everything operates off of the 120 volts delivered by your home’s wiring, the power demands are different for each device.  As power is applied to a circuit, current flows over the wiring and heats it up.  The higher your power demands, the more current is flowing through the wires.

The wires in your home can only handle a set amount of current (most circuits are 20-amp circuits) before they overheat and begin to ignite insulation around them.  If you placed every light, appliance, and TV in your home on the same electrical circuit, you’d reach this thermal limit almost immediately.  To prevent his, we install circuit breakers to help separate energy demands to specific rooms.  We also separate the energy load to create special appliance circuits.  This is why your HVAC unit is on a separate circuit from your kitchen and your laundry room.  Appliance circuits use thicker wires which are designed to handle higher electrical loads.  High current circuits are expensive, so homes are designed to use them sparingly.

This is also why you should only ever replace breakers and fuses with new units that have the same tolerance.  Circuit breakers are designed to be the weakest link in a system.  They must trip before anything on the circuit itself would fail.  This safety feature means that the breaker will trip before wiring overheats or appliances are damaged by high-current draw.  If you do need to replace a breaker, always match it with the same current-rating.

Power surges are another reason we separate circuits in a home.  Whenever a load is applied to the system (you turn on a hair dryer, electrical appliance, or even a lamp) inrush current is also applied.  Inrush-current is the initial surge of power that occurs when current is increased.  Extra power is applied across the system, which causes a risk of electrical damage when a high-power device is applied to a low-power circuits.  To mitigate this, high-load motors such as those in power tools, HVAC systems, and other appliances are plugged into special appliance circuits.  This is also why you should plug sensitive low-voltage electronics into surge protectors.

Sometimes electrical panels can wear out.  While the signs are clear when you know what to look for, without experience you have no way of knowing if it’s time to replace your panel.  Get an inspection for your electrical panel if:

If, however, you happen to notice one of two logos, Federal Pacific Electric (FPE) or Zinsco, you should call for a replacement immediately.  These older models of electrical panels are unsafe and should be replaced quickly.

For the best in quality electrical repair work and installations, contact the professionals at Custom Electric!  Be sure to check back here each week for helpful advice, news, and guides or follow us on Facebook and Twitter!

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Electrical ballast replacements are a common project in both residential homes and commercial buildings. An electrical ballast is a device used to regulate electrical currents so that they do not reach uncontrollable levels. A common application of electrical ballasts is those found in any type of light structure such as fluorescent or neon lighting systems. Depending on the size of the replacement project, a licensed electrician isn’t always necessary; however, if you don’t have the proper tools or experience, it is a good idea to consult with a licensed electrician before attempting the replacement. To simplify the procedure, here are the answers to three common questions about electrical ballast replacement.

Similar to replacing a light bulb, if you have any type of neon or fluorescent light, you will eventually need to replace the electrical ballast in the lighting structure. Replacing the electrical ballast is a more reasonable solution than replacing the entire neon or fluorescent light structure. You will know when it’s time to replace the electrical ballast because the light will begin flickering or will stop working entirely.

Yes, you can perform a ballast replacement yourself. While ballast replacement can be a simple procedure, if not done properly you can cause damage to your replacement bulb but also the fixture. Before performing the replacement yourself, make sure you are confident and understand all the steps involved or you could end up with expensive bills you were trying to avoid. If you require assistance or have any questions about electrical ballast replacement, contact our team of licensed electricians at Expert Electric. We would be happy to help.

Thankfully, an electrical ballast replacement does not require a fully stocked tool shed in order to be completed. For most electrical ballast replacements, a few simple tools will do the trick. Depending on the type and size of your replacement, your replacement may require a simple screwdriver, nut driver, drill, pliers and wire stripper. This is in addition to the new electrical ballast which you will be replacing.

For more information on electrical ballast replacement, please contact the licensed electricians at Expert Electric. You can reach us at 604-681-8338 or you can book an appointment online through our website. For 24/7 immediate response emergency service, please fill out a form on our website so that we can get in touch with you as soon as possible. We offer various types of electrician services including electric water heaters, surge protectors, ceiling fan installation and we service all throughout the Greater Vancouver area and Lower Mainland.