Question about Heating & Cooling

2 Answers

Electrican Question - For a School Paper Not a Real Scenario

This is to prepare a "defense" for a school law paper. I am certainly not going to mess with electricity so rest assured. Here is my scenario. An electrician with 10 years of experience turned on a breaker without testing for short circuits first. (According to the scenario, this step of testing for short circuits is a basic thing to do.) The electrician gets electrocuted and then tries to sue the company for negligence. My contention would be that with 10 years of experience a licensed electrician should know this. So, can you give me the basic steps an electrician would follow to turn the breakers back on?

Posted by on

2 Answers

  • Level 1:

    An expert who has achieved level 1.


    An expert that has over 10 points.


    An expert whose answer got voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 5 Answers

The breaker is to protect the wire. Turning it on first is done all the time. If a short exists, the breaker should trip to protect the wire and avoid a fire. The electrician would have to be touching bare copper or aluminum to get bit turning on a breaker, unless it was a very large circuit. So I assume he/she was probing inside some cabinet or box. More detail is needed.

GFCI breakers and receptacles, as well as arc fault breakers protect people from shock.

What company would he/she sue; the breaker/panel manufacturer, equipment being energized, company that owns the bldg. or company that leases the building, or another company that ordered the work?

The electrician tests for shorts on larger circuits where arc flash could result upon initial energizing - first time turning breaker on. For branch ckts he/she just turns it on and goes to test the voltage (and rotation if a 3 phase motor) where utilized.

Posted on Mar 11, 2009

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 5 achievements.


    An expert who has answered 200 questions.


    An expert whose answer got voted for 20 times.

  • Expert
  • 210 Answers

In my opinion turning on circuit breaker first is ok. First to determine what is tripping the breaker. Isolate what is on that circuit. There are always different ways of troubleshooting.

Posted on Mar 23, 2008

1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

What type of roof ? EPDM or TPO

My preference is PVC but TPO would be my second choice. EPDM is old school, more expensive not as good. All need good drainage add drains to eliminate any ponding areas.

Aug 25, 2016 | Heating & Cooling

1 Answer

Oil pressure gauge does not move, message, no oil pressure, after a couple of minutes the oil pressure gauge works.

Hi Mike:
Four possibles?
1) Oil pump problem
2) Oil pressure sensor/sender problem
3) Oil pressure guage problem.
4) Bad wire connection between sensor and guage
Being really "Old School" I'd see if it is possible to install a "real" oil pressure guage so that I knew what was happening.
- If you don't have oil pressure within 10 seconds of the engine starting I would be concerned.
- How many km on the engine?
- maintenance history?
- problem history?
- Are you the original owner?
Reply as a COMMENT to this post and I'll try to help.

Jan 08, 2016 | Chevrolet 2007 Chevrolet Avalanche 1500...

1 Answer

Why is my high side pressure 400 psi

Compressed refrigerant has a higher pressure than vapor on the low metered side returning back to the compressor

Dec 11, 2013 | Heating & Cooling

2 Answers

How measure resistance with an ohm meter

Jun 11, 2011 | Heating & Cooling

1 Answer

Hello i want to refill my home A/C r407c freon type and i need some guidance. can you help me pls?

Hi, just to let you know and to be honest to you on this problem, if you are not a certified service tech, and certified through the E.P.A with your card, you can't even buy any type of refrigerant other then what they sell for your auto now the R-134a. You are going to have to have this done for you. R-407 comes only in 30lb. jugs from a/c wholesale only places for certified contractors, and we must show our certification card that we have been through school for safe handling of all freon. This law went into affect in 1992, so I am sorry to give you this news. If you know this is the problem for sure, make some calls to a/c repair companies to see what they will charge you to check this out for you. I wish you the best of luck on this, but this has been the law for a lot of years. The R-134a that you can buy is ozone friendly, so you can buy it but no other kind as there are over 100 different types of freon on the market. Best of luck to you on this.
A/C, Heating & Refrigeration Contractor

Aug 27, 2010 | Whirlwind FH-778 Air Conditioner

1 Answer

Loud banging and squeaking

that depends - it sounds like fan motor going out or a foreign object. With a flashlight go outside and observe the unit running ( ideally during the malfunction ), you will want to shine the flashlight into the louvers of the case so that you can see inside the unit (( depending on construction)). Look for bent / loose fan blades and/or foreign materials. If no obvious obstructions are found you will need to consult a qualified person. To give you an idea of what you can expect I will construct a repair scenario :
Service call : $65 - $90
Fan Motor : $ 80 - $150
Fan Blades : $ 30 ( hopefully you can re-use your old one if it is not damaged)

The only other thing that it could be is the compressor, if that is the case don't bother repairing. Get a new unit.
Take my example, add it up and compare it to a new unit with a least as much or more BTU output. If repair costs are 50% or more of a replacement unit I would recommend replacing it with a new one.

A few words on selecting the right repairman.

If you choose to consult a repair service check to see if they are listed with the BBB.
Ask around - friends & relatives may be able to point you to somebody.
Take advantage of vocational programs in your area : Most vocational schools have heat and air classes. The young people attending these classes will sometimes repair your unit for parts cost to get the practice ( check with the school)

Hope this helps

Jul 22, 2009 | Whirlpool ACQ108XL Air Conditioner

1 Answer

Ice chipping and minimal cooling

hey mary you might be right about the cleaning which would possibly cause icing also a low refrigerant level.which supprising you would think would cause it to be warmer but refrigerant doesnt work that way,depends on the pressure level in the system causes refrigerant to change its advice is that if it was under 2 or 3 hundred dollars,get a deal on the cleaning if possible which is unlikely,but window ac system are more or less disposable maybe get a new one and donate that one to a tech school in your area

May 26, 2009 | GE AJCS06LCB Air Conditioner

1 Answer

No owners manual or installation manual.

1: Go to Google Search Engine. Type in:Goodman model no. CPLE18-1C

2: Then Click on: rpt-parts manual cover.

Your Manual is there.

Thanks and Good Luck With Your Career.

Please don't forget to rate me


Apr 28, 2009 | Heating & Cooling

3 Answers

Amana ptac


Sep 10, 2007 | Amana AAC051FRB Air Conditioner

Not finding what you are looking for?
Heating & Cooling Logo

Related Topics:

112 people viewed this question

Ask a Question

Usually answered in minutes!

Top Heating & Cooling Experts


Level 3 Expert

2096 Answers

Dan Webster
Dan Webster

Level 3 Expert

8205 Answers

Donni Steen

Level 3 Expert

659 Answers

Are you a Heating and Cooling Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides