ZINSCO ELECTRICAL PANELS – why their panels are dangerous
What happened with Zinsco and why do electricians tell people to replace their panels? They have a stigma similar to Federal Pacific as being "outlawed" for some reason, here's why.
Category: How Stuff Works
Why Do We BOND Neutral & Ground in ELECTRICAL SERVICE PANELS?
This question has been asked by so many people over such a long time. Why on earth do we have to bond the system neutral and the equipment grounding conductors, and grounding electrode conductors in an electrical system?
Outlawed Panels and Breakers
There are a whole bunch of old breakers and panels that are installed in many residences that have created fires and taken lives. Here's a little overview of the different types. This is not a deep dive into each brand, which will be coming soon.
Dimmable LED’s – DON’T FORGET THE DIMMER!!
When you go to a job to replace a bunch of incandescent bulbs for LED bulbs, don’t forget to check what kind of dimmer is present, if there is one at all. I’ve made this mistake in the past.
CONDUIT FILL EXAMPLES for the Modern Electrician – How Many Conductors Can I Put In…
This video is packed with useful information on how to calculate examples of conduit fill using the National Electrical Code as the basis. If you've struggled understanding conduit fill, this should do the trick.
TRANSFORMERS – What They Are, How They Work, How To Size Them
Let’s open up a transformer and dig through it to see how they work. Transformers are extremely useful devices used in electrical systems to raise and lower voltage. They’re also used for isolation, typically in cleaning up power. They only exist in the world of Alternating Current however, so...
Episode 33 – Contactors – TYPES AND HOW THEY WORK
Contactors are heavy-duty electromagnetic switches that are normally used in controlling large lighting loads and motors. They operate similar to relays, but often times deal with more voltage, higher amperage, and have more input and output options.
Episode 32 – Color Temperature – WHAT ARE KELVINS? 2700K, 3000K, 5000K
The Kelvin Scale is used to talk about color of objects at certain temperatures, whereas other temperature scales deal with actual heat or thermal temperature. Kelvin is used in lighting especially for that reason, to talk about the color of light emission.
Episode 31 – Control Relays – HOW THEY WORK & WHAT THEY’RE FOR
A relay is a type of electromagnetic switch, similar to a contactor, that can be controlled remotely with electricity, rather than needing manual input as a standard switch would.
Episode 30 – Lumens Or Watts? – THE BRIGHTNESS OF LIGHTS
A lot of people still use wattage to talk about the brightness of lamps, when in reality lumens are the measure of light output. Wattage is still useful to know as an electrician, but we need to stop using it to talk about the BRIGHTNESS of a light.