Wiring Experts Lewiston ME

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Cumberland Electric
(207) 331-5183
56 Forest Lake Rd
Cumberland , ME
10% off $250 or more of services.

Also, don't get left in the dark ask about our maintenance program for your electrical panel.
Monday 8:00 AM - 4:00 PM
Tuesday 8:00 AM - 4:00 PM
Wednesday 8:00 AM - 4:00 PM
Thursday 8:00 AM - 4:00 PM
Friday 7:00 AM - 3:00 PM
Saturday Closed
Sunday Closed
Circuits & Wiring, Commercial Electrical Services, Electrical Inspections, Electricians, Lighting Design & Installation, Residential Electrical Services

Jim's Residential Wiring
(207) 729-0033
Brunswick, ME
Electric Contractors, Generator Dealers
Lighting, Remodeling

Bennett Electric Inc
(207) 655-3282
42 Turtle Cove Road
Raymond, ME
Electric Contractors Residential, Electric Motors & Generators Wholesale & Manufacturers

RCC Electric
(207) 743-8869
Elm Hill Road
South Paris, ME
Electric Contractors Residential, Electric Equipment Service & Repair
New Construction, Commercial - Industrial

Advanced Wiring
(207) 783-2889
215 Pine Street
Lewiston, ME
Electrical Systems of Maine
(207) 783-7126
1200 Minot Ave
Auburn, ME
Electric Contractors, Infrared Spectroscopy Testing Laboratories, Electric Motor Dealers, Infrared Equipment & Services
Payment Options
MasterCard, VISA

Reed Electrical Services
(207) 865-4015
105 Flying Point Road
Freeport, ME
Electric Contractors, Electric Contractors Commercial & Industrial, Home & Recreational Generators, Lighting Consultants & Designers, Phone Equipment & Systems Wiring & Installation

Flanders Electric Inc
(207) 743-6526
50 Beal Street
Norway, ME
Electric Contractors Residential, Electric Motors & Generators Wholesale & Manufacturers
Electric Motors

Renaud Electric
(207) 782-7020
21 Libby Avenue
Lewiston, ME
Saindon & Son Electrical Contractors Inc
(207) 783-2309
158 North Temple Street
Lewiston, ME

Adding a ground to your outlets

Your house has old wiring, and your outlets don't have the third slot for the ground prong. What can you do? How do you go about adding a ground wire or ground connection to your outlets?

First, why have a ground? The ground wire was added for personal protection. Appliances that have the third prong for the ground, have a portion of the equipment, or casing connected to that ground prong. Then if there are any wires inside the appliance that get loose, and make contact with the casing, the current will flow through the ground wire, instead of you. Without the ground connection, you may well be the best or only path to ground, and you can receive a shock.

So, for your protection, it is a good thing to have grounded outlets where ever you use anything that comes with the ground prong.

Older wiring didn't have the ground.. as the years went by, standards changed, and while it is not usually required to upgrade your house, it is still a good idea. As with all wiring, make sure you are only working on dead, de-energized circuits. Check with your local building inspector to determine if any permits are required or inspections.

Well, perhaps the best way, if access allows, new wire can be run that has a ground. At the entrance box (where your fuses or breakers are), the ground wire will attach to the grounding bar, which in many cases is the same as, or connected to, the neutral bar. Then, in your outlets, the ground wire can be attached to the green ground screw of the new grounded receptacles.

Some homes without the ground wire, may be wired with BX or armored cable. This is the cable with the flexible metal casing around the wire. If this is the supply to your outlets, and it runs from your metal boxes all the way to your entrance box (where your fuses are), you are in luck. The outer casing of this wire can serve as the ground. For you to use this as the ground, your entrance box should be connected to ground (it usually is) and the BX cable connected to metal receptacle boxes in your walls. You should test this first be verifying that the voltage between the hot lead and the box is 110 V. The new grounded outlets should be wired from the green ground screw to a screw into the metal receptacle box.

Perhaps one of the cheapest and simplest ways to address this is by using a ground fault interrupter or GFI also known as a GFCI outlet. This is a good choice for many hard to re-wire cases. Instead of running a ground wire, or connecting a ground connection to the outlet, you will rely on the GFI function to provide the personal protection. It is not the same thing, but for most instances it is better. A GFI breaker or outlet will trip when there is not the same amount of current flowing in both electrical lines. So, if there is a loose wire, and some of the current starts to travel into the casing (toward you), it will trip and stop all current flow. Better than just letting it travel to...

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