How important is it to completely insulate bare wire in outlet?


At most home centers, you can buy an economy outlet for about...

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Answer for USA, Canada and countries running a 60 Hz supply service. Your question is, "Is it possible?" And yes, it is. It would work just fine as a 2 wire outlet. It will

…even provide GFCI protection, contrary to what many people believe. However, it is a violation of code and highly ill advised to do so. Code requires that when replacing any 2 wire outlet that it be upgraded to a 3 wire circuit. I know hardware stores still sell 2 wire outlets but that is beside the point. The third wire, the ground wire, is there for your protection, or it should be installed. There is no way to properly install a 3 wire outlet, GFCI or not, on a 2 wire circuit. The national Electric Code allows the replacement of two wire receptacles with three wire GFCI outlets refer to NEC section 406.4 for more clarity on the subject. As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed. Before you...
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We were given a welder that has a big 240 volt plug, but our home doesn't have any 240V outlets already wired. What to do? Wire your own!

Turns out the plug we had is NEMA 6-50. You can probably figure out what yours is from a chart. If it's close, measure the lengths of the prongs and compare to what is listed. Once you know your plug type, find a mating receptacle on Amazon or somewhere else - probably about $10.

Now go check your breaker box. In most US residential neighborhoods, you'll have two thick wires coming in from the street. These are the mains 240V alternating current (oscillates between 120V positive and 120V negative). Each of the 120V AC outlets in your house uses one of the lines from the 240V pair and one "neutral" line (which has a 0V potential), so the total potential at the outlet is 120V. But we want 240V so we'll have to draw from both lines (poles) at once. For that, we'll need a double throw (2 pole) 50 or 60 Amp (lots of current for a...

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By Lee Wallender

When replacing or installing an electrical outlet, it is essential that you need to know how to connect the wires to the outlet.

There are two methods of connecting the wires: 1.) side wiring; 2.) backwiring. Side wiring is where you connect the wires directly to the side screws by forming a loop in the wire and turning the screw so that it holds the wire firmly in place. Backwiring is where you insert the end of the wire into a slot in back of the outlet.

Books on electrical wiring have varying opinions on side wiring vs. backwiring. Side wiring is considered to be a more solid "fix" and is often the choice of electricians. Backwiring allows you to connect wires faster, but usually does not hold the wires as firmly in place as does side wiring. The reason for this is many outlets have a "spring-loaded" slot that does not provide as solid a hold as do screws.

However, I recommend you look for an outlet that combines the best of both...

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If you want to install a electrical double outlet, you should know that it is a little different than when wiring in a single outlet. However, wiring a double outlet is very easy and can be completed in just a few minutes. This simple step-by-step guide will show you everything you need to know. Let's get started.

Step 1 - Shut Off Power to the Circuit

Before you start, go to your home's main electrical breaker box and shut off the power that will provide electricity to the outlet you will be installing. Once the breaker has been shut off, test the circuit with a multimeter our test flight just to be sure.

Step 2 - Prepare Wire from Circuit Breaker Box

Ensure that the junction box where you will be installing the new double outlet already has a wiring that runs from the main circuit breaker box. Take the wiring and cut off the ends with wire cutters. Then, use the wire strippers to strip about 3/4 inch of wire that will be used to connect the new...

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Determine which devices are not connected to GFCI.

Some devices should not be connected to GFCI receptacles because of the possibility for "nuisance tripping"; for example, refrigerators, fluorescent lights, laser printers, garbage disposals, trash compactors, dishwashers, clothes washers and dryers, home heating and cooling systems, artesian well and driven point jet type pumps,microwave ovens and freezers are some of the more commons items.

For switches: Label the wires with some sort of identifying mark on masking tape wrapped around each wire. Use the same mark for each wire connected to the same terminal screw of the device Determine the type of switch you have. A single-pole switch (one switch controls the light fixture(s)) will have two screws and be marked "ON" and "OFF" if a toggle type, a 3-way switch (two switches control the light fixture(s), typically at each end of a stairwell) will have three screws, one of which is black, and a 4-way switch (three switches...
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Electricity is responsible for running pumps and motors, ignites gas heaters, and operates controls. When major renovation or installation of electrical circuits is required, call a professional electrician and subcontract the job. When troubleshooting short circuits or other specialized electrical problems, an electrician will solve and repair it faster than you can, so again, call a professional and let him do his job.

Water technician and electrician is required to make basic electrical connections, troubleshoot underwater lights that won't work, switch appliances from 110 volt to 220 volt, and so on. Understanding the basic concepts of how electricity works, is controlled, and is conducted, will keep you both safe and profitable.

Electrical Terms

Electrical Terms definitions are as below

Amperage (amps) is the term used to describe the actual...

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Battery Wiring

Slow Cranking System Test

Negative lead

Dielectric grease

Battery Wiring

Trunk Mounted Battery Installation

Drag Race Legal Trunk Battery

For the past 40 years, I have designed products that consume, produce, or measure significant current. These products are used on high voltage power mains and low voltage systems. I also designed (and was responsible for production of) vehicle gauges and test equipment, including instrumentation (meters) in products marketed by national suppliers. Our instrumentation customers included Snap On, Mac Tools, Sears, and others. You can skip all the technical stuff in the beginning, and just move on to battery wiring or to trunk mounted battery.

Battery Grounds, Accessory Grounds, and Equipment Grounds

The most misunderstood automotive connections are connections to the battery negative. The Negative Lead page goes into details. Please read it before connecting things to a...

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Marine Electrical Check List

A Guide to Inspecting Marine Electrical Systems

This document is available on the Internet at and it is shareware.
copyright (c) 1990, 1996 by Robb Zuk, Salt Spring Island, Canada. All rights reserved.

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This document is an explanatory guide for checking marine electrical systems. There are some good, detailed publications on this subject and I recommend them for additional reading when you have the time...

For now, this check list will get you started with a minimum of reading. I summarised points from Canadian, American and British marine wiring regulations. However, I did not quote these publications exhaustively so don't consider Marine Electrical Check List a legal document.

Before working on your system, clarify any confusing points with a professional...

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