Newbie Prius Plug In Owner - Charging at work question

I cant answer your questions, but congratulations on your New PIP. You will love it.

 

Welcome to the world of PiP! One thing is to check with the building management on whether it is OK to plug in.

 

Plugging the car into a random outlet won't hurt the car, but the point is well taken to get permission from building management before plugging it in. The main issue is whether that circuit can handle the load. (OK, and the $0.50/day it may cost in electricity.)

 

welcome to priuschat! i concur on getting permission. there are only two kinds of outlets, 120v and 240v. the plugs are different, so you can't make a mistake. all the best!

 

Just check the plug voltage with a multimeter.

 

Yes, that sounds right if you were largely on electric. Note that value assumes the cost of electricity is zero, so isn't a real reflection of the actual energy used to travel that distance. For that calculation we use MPGe - there are lots of threads here where you can read about this.

I would also encourage you to speak to the building owners before plugging in!

 

There's a button on the EVSE to check the electricity going into the plug. Is it too naïve to think this button check isn't sufficient enough to confirm the plug is good? If not? Call me bliss.

 

That button checks the EVSE itself, and maybe that the outlet is grounded. (The EVSE should indicate no ground even if the button isn't pushed.) It has no way of "knowing" if there is enough capacity left in the circuit to provide you with 12 amps and not trip a breaker or blow a fuse. That's the #1 reason you should check with the building staff. Make sure to mention that it requires 12 amps.

 

Another reason to always ask is that you don't know the condition of the socket/circuit. Even if its breaker has more that you need capacity a loose wire or poor contact may cause socket burned down or even catch fire. Who would be held responsible then?

 

After you test the voltage of the outlet with a multimeter, you can then test if the outlet is wired correctly with one of these. When all the testing is done, then you can ask for permission. This is what I did to use the outlet at work.

 

When I was rewiring my house many years ago, I found that you can easily check outlets for ground and polarity with a simple test light. Just place one pin of the tester (grasping the insulated handle areas) in the smaller slot (this should be the "Hot" one) and the other on the outlet cover screw. If the light lights up, you have a ground and the polarity is right. If it doesn't, first put the light prongs in both slots: if it lights, try using the large slot and the cover screw. If that works, you have reversed polarity and the outlet was wired backwards. If neither slot plus the center screw or box gives you a light, you have no ground in that outlet. If the outlet isn't grounded but you can get a light by touching the Hot slot and the metal outlet *box* only, then the outlet isn't grounded, but *can be*, just by adding a grounding wire to the box.

 

Ask for permission BEFORE testing.

 

You test it first. This way you know if it's even worth pursuing. Takes 2 seconds.

 

My signature on a lot of forums is
"Better to ask forgiveness then to ask for permission and be denied" I say go for it
Thats why theres an outlet in a parking spot
For tenemts use or a homeless to plug in his blanket