Friday, January 22, 2010

Get bare!

No, not in that kind of way....well, maybe if you want.

I'm talking about wires, okay? Problem? No? Good.

Make sure you leave your wires bare when you put them on the screw...no insulation on the screws at all. Why? Continuity.

When you do that, you're getting the best continuity you can get...using the entire screw, rather than just part of it. Works much better then.

Oh, and make sure your 3 way isn't bad if it doesn't work. You may just have a wire on wrong. It happens.


Our circuit today was dual 3 ways and a 4 way on a light, with a half hot outlet on a single switch. Three single gangs, one double and a round box. Not too difficult. A little cramped in the box, though.



While on the subject of 3 ways, a good idea is to mark your tracers. Head to your local electrical store and pick up some stick-on wire markers. I use "T" on tracers, "H" on hot....all the way through that line. Makes things easier.

Plus, any other electrician can figure it out if they have to change a switch. And no more having to twist wires a special way. The stickers only cost a couple bucks, I believe. Mine came in a little booklet of them. Every letter, numbers 0 through 9, and a positive (+) and negative (-) sign.

I'd recommend them.

-Nate

Thursday, January 21, 2010

Electricians basics

We all know the classic electrician. The ones cramming both hands into a box that can't even hold an infants foot. Usually shocking themselves.

Believe it or not, it's actually more complicated than that. Here, I have compiled a short list of what I know.

Tools

Ok, so we're all familiar with the basic tools. Screwdrivers, hammer, wire strippers, and needlenose pliers. What else? Oh, right, tape measure. That could come in really handy. So can a hack saw.

I'm sure we all know about those tools, maybe a few others. You may see them in this next list. You'd be suprised what we end up needing.

Part of a basic Electricians tool bag can consist of the usual hammer, screwdrivers and wire strippers, but here's a few things you may not have known about...then again, you may have. I don't know.

  • Utility Knife
  • Flashlight (kind of a no-brainer, though)
  • Channel locks, for that pesky conduit stuff.
  • Conduit nut tool, whatever the name for that silly thing is.
  • Conduit reamer
  • Thread chaser
  • Diagonal cutters
  • Non-contact AC Detector (Very handy!)
  • Allen wrench set
  • Pry bar
  • File
  • Cold chisel set
  • Paint scraper (might come in handy after those silly drywallers)
  • Outlet tester
Yes, we have a lot of tools. That's not everything I have, either, but you'd be suprised how much you actually use them compared to what you would think.

I still can't figure out why the pry bar was there, but I have it regardless. I'm sure I'll learn the use soon.

If you're shopping for these tools, then please, buy American Made tools....no matter the price. You just might be funding the people that pay you later on.

Colors

You can't really be color blind here....or insanely racist to the point that anything colored black should not be in existance. It's part of the unwritten job description, I'd think.

Here's the basic things we have to remember.
  1. Black is hot....usually
  2. White is neutral....at least, it should be. Mark it if it isn't.
  3. Green or bare is ground
  4. Red is probably hot, too
It gets even worse when you get years of dust on those wires and end up having to work it live....got to rub the dust off what you hope to be the insulation, avoid shocking yourself...though, I don't believe that dust gets that hard to rub off of plastic. If so, then you're dealing with knob and tube wiring, in which case it really never mattered. Black and black, those were the wire colors, I believe. Could have been black and white. I know there was no ground.

Take a look around your room. You've probably got a few outlets, at least 1 on a wall, most likely...a few switches, and a light or two.

Is one of those outlets on a switch? How about just half of it? Yes, half of the outlet. It's possible. A bit of a pain, but possible. Gets even harder with 3 way switches.

Remember me saying that red is usually hot? The three way switches is where it comes in. You know, the switches that have no markings on them, no "on" or "off"...and two or more switches operate one light.

On those switches, there's two wires between them rather than the one, like a regular switch....actually, there's 4 (at least, may be more depending on how it was wired), but for now, we're just talking about the hots. The neutral and ground are being ignored.

If it's done with 3 conductor wire, then you have a black and red between the two switches. One of those is hot all the time. Which one is it? Well, that depends on your switch position. Careful, don't touch 'em if you're ever behind the cover. That cover isn't just for looks, you know!

Why two wires? The switches have two outgoing terminals. Think about the turn signal switch in your car....I hope you use it. We'll ignore that center position on it for now.

You flip it one way, power runs to the left signal on the car. Flip it the other way, the right signal comes on. This is a basic 3 way switch. Switches power from one wire in between two outgoing wires. Did I lose you yet?

The other 3 way switch in the circuit switches it back to 1 wire....if it connects to that hot, then poof...you have light. Flip either switch, it goes off. Make sense now? If not, then I don't blame you. Kind of hard to explain one without pictures.

Codes

This is usually the kicker...we have to make the inspector happy somehow, and keep your house from burning down with us at fault.

The National Electrical Code, or NFPA 70, is.....huge. I don't know the exact page count, and I'm not counting myself. Let's just say that it's the Electricians equivelant of a bible, in a couple ways. Follow the rules in it, and prepare your shoulder for the brick of paper when you have to get it out.

Sure, some counties don't have inspectors. Lucky us. It's still not a bad idea to abide by the code, though. Safety thing. Some of it is convenience, too. Not kidding.

If you ever hire an electrician, ask him what the newest code book he has is. As of now, it should be the '08. Next year, it will be the 2011. They get redone every 3 years. Make sure your electrician has one, there might be something major in there he has to know.

The next time you have to have an electrician, please don't argue, unless you're absolutely sure. In that case, make your point polite...please, it will save us a lot of hassle. This goes for your family, too.

And if you want a second opinion on something, then by all means, call another company and have them look at it. Some companies just want to sell you new stuff and get money. Most are honest...I hope. They should be, anyway.

Last, but circuitly not least (nice pun, huh?), we will answer questions...unless you end up with a bratty one who thinks they know it all...kind of like some of the newer teen girls. But normally, we try to take care of the customer....we do what we can.

Me? I do what I can, to the best of my ability...and then some. Or, I will, at least. Kind of like a sports team.

-Nate




Greetings all!

So, I've really just created this blog to discuss training in the field of an Electrician....particularly what I'm going through, the advice I've learned, and such. You'll understand as I put more posts in, don't worry.

Before I go on, look in your address bar. Clever web address, huh? Correct me if I'm wrong, but is it not also self explanatory?

The blog will also discuss the rest of my life....what little there is to discuss, that is. Outside of school, I lead a boring life.

To start off, I'm going to Linn State Technical College. I highly recommend this place. I've learned in 16 weeks what my HVAC teacher (Vo-Tech back in high school) couldn't get through to me in 2 years. It's great. Fast program though, it's only two years.

Internship is coming up this summer, and I'm hoping I have one lined up. The biggest problem I have is finding a place to stay. There's no way I'm going from my parents house, that's too far....even if dad's paying the gas, and I'm taking his car that gets about 30 MPG (5 speed manual Dodge Neon, 04) with a tiny tank. That's not happening if I can help it. No way.

And there's no way in the world I'm taking my truck there, unless it's absolutely necessary.

I guess that's it for now, I'll figure out more stuff to post on here. I may even get photos of my work, who knows. We'll just see where this blog ends up going.

Farewell
-Nate