Do-It-Yourself Electrical
Electric Contractors;
Electric Equipment Service & Repair
Prior to attempting any electrical do-it-yourself project, make sure you are confident in your abilities and have a basic knowledge of electrical wiring. Serious harm could result if you are unsure about what to do. If you have doubts or are uneasy about any electrical tasks, call an
electrician. With electrical projects, it is always better to err on the side of safety.
Projects involving low-voltage wiring for
cable television,
speakers, and
security systems are safe for the average do-it-yourselfer. With a bit more experience, standard-voltage electrical wiring powering
lights,
electrical outlets, and
appliances can be tackled with caution and care. Before taking on any electrical task, research how the project should be handled and follow all detailed professional instructions.
Basic Wiring
Electrical current travels through metal conductors or wires located inside switches and receptacles (outlets). These currents travel in a circular loop or circuit from the service panel to each switch and receptacle. The service panel receives its power from a transmission via a meter provided by the
power company. Inside the service panel, several circuit breakers or fuses are attached to two metal bars connected to the meter. The power distributed through the meter energizes the two metal bars which in turn provide power to circuit breakers or fuses. Each circuit breaker or fuse provides power to a number of switches and outlets.
Electricity then travels from the service panel through an insulated, energized wire (typically black, red or another color other than green or white). Once at the switch or receptacle, power returns to the panel via a neutral wire (typically white). A third wire (typically green or bare) provides a ground. The neutral and ground wires are both connected to a separate neutral metal bar located in the service panel. This neutral metal bar is connected to the neutral line from the main power line.
Circuit breakers or fuses serve as a safety device. When too much power is being drawn through a particular circuit, it automatically shuts off. This keeps the system from overheating. Once a circuit breaker is tripped, it can be reset, restoring power. If a fuse is blown, it cannot be reset and will need to be replaced.
Labeling Circuit Breakers
Prior to beginning any electrical projects, make sure your service panel is properly labeled. Each circuit breaker or fuse controls the electricity to a particular portion of the house. Verify that each circuit breaker is properly mapped and identified. Before handling any electrical wiring, ensure that all power to the wires has been shut off. Proper labeling of circuit breakers or fuses makes this task much easier.
Replacing Light Switches
After extensive use, it is not uncommon for the contact points inside a switch to become worn or corroded. Replacing a single-pole switch is a good do-it-yourself project. However, if you are looking to increase to a three-way switch that can be turned on from multiple
locations, this job is better left to an
electrician.
Make sure the problem is isolated to the switch by testing it with a hand held lamp you know is working. This ensures the problem is the switch itself and not the
light bulb or
fixture. Standard single-pole switches need to be replaced with other single-pole switches but the style does not need to remain the same. There are a variety of styles and colors that provide elegance to any room.
Dimmers,
hand-held remotes or
switches that turn lights on automatically when someone enters the room can be installed as well. Switch features options include a
toggle,
pilot light, or
timer.
Before opening up the switch, make sure the power is turned off at the circuit breaker. This is critical to avoiding electrical shock. Be sure to check the amp and voltage ratings on the back of the switch to be replaced. The new switch needs to have the same amp and voltage rating. Also check to see if the home has aluminum wiring, as this requires switches that are designated “CU-AL” to ensure compatibility. Follow instructions found on do-it-yourself websites or advice received from
home improvement centers. If you feel nervous or unsure about the task, contact an
electrician for assistance.
Replacing a Receptacle
Also known as
outlets or
wall plugs, receptacles are the electrical interface between
lamps,
computers,
appliances, and other devices. After extensive use or due to age, connections between the receptacle and device prongs will become loose, requiring the receptacle to be replaced. For those with a good knowledge of receptacles or for a confident do-it-yourself, changing the receptacle is a good project.
The majority of receptacles in the home are a duplex type receptacle powered with either 15 or 20 amperage and 120-voltage, featuring two slots and a grounding hole. Each receptacle is marked on the face of the plate indicating the number of amps and volts powering that receptacle. This ensures that devices requiring a particular voltage can be verified prior to plugging it in. To avoid plugging the wrong appliance into the wrong receptacle,
tool and appliance manufacturers have designed specialized prongs that require a specialized receptacle.
Clothes dryers require a combination 120/240-volt receptacle while saw tools require a 240-volt receptacle. These higher voltage receptacles have specialized prong configurations ensuring only higher voltage devices are powered by the receptacles. Another type of receptacle commonly used in kitchens and bathrooms is a GFCI receptacle. Used in areas where the possibility of shock is more prevalent, these receptacles have a trip switch that shuts off automatically shut when too much power is generated.
Receptacles are also stamped to indicate the type of wiring it can accommodate. One stamped AL-CU accommodates both copper and aluminum wiring. If it is unmarked or has a slash through the AL, only copper wiring should be used. There are two methods to wiring an electric receptacle. The first is a screw terminal that uses the screw terminals on the side of the receptacle. The second is backwiring using the wire holes on the back side of the outlet. Again, the type of wiring plays a role in determining which method should be used. Backwiring is only suitable for copper wiring.
Before starting any
electrical project, make sure power to the receptacle has been shut off. Do-it-yourself websites or
home improvement experts provide step by step instruction on how to replace receptacles. Make sure you are comfortable with the task and feel confident with what is required. If you have any confusion about what is required, consult an
electrician. When looking to change the type of wiring or raising the voltage servicing the receptacle, leave these projects to a professional
electrician.
Replacing a Light Fixture
Changing a
light fixture is one of the more simple do-it-yourself projects. Following manufacturer’s instructions located in the box is often all the instruction you need. Adding a
new fixture to a room dramatically changes the appearance. Regardless of the age of the old fixture, it can be replaced with a newer fixture. Flush
ceiling lights can be replaced with chandeliers, track lighting, or a
ceiling fan. Specialty lights may require different mounting hardware that what currently exists but it can be replaced fairly easy. Take into account the size and weight of the new fixture to ensure the mounting hardware can support the weight. Heavier fixtures require mounting the hardware directly into the ceiling joists.
If your home improvement project requires installing a light fixture where there wasn’t one before, consult an
electrician. Installing a fixture and ceiling mount requires running new cable through walls which is a difficult and extensive job. An experienced electrician will ensure all wiring is hidden and that electrical wiring is properly connected to the service panel.
Finding a Quality Electrician
All electrical needs beyond changing out switches, receptacles, and light fixtures should be left to
professionals. Ensuring the job is done right is critical to your health and the safety of the home. Faulty wiring is a fire waiting to happen. Electrical projects require compliance with building code and permits need to be obtained prior to beginning any work.
Electricians have an in-depth knowledge of wiring infrastructure and building code. Leaving the majority of electrical needs in their hands brings peace of mind knowing a skilled professional is completing the project.
Check Licenses:
Begin the selection process by asking to see a state license. There are two types of electricians depending on their qualifications and experience. A
master electrician has passed a standardized test and has a minimum of two years experience. He/she has knowledge of the National Electrical Code and any recent modifications that have been made specifically by your state. Master electricians are also qualified to maintain, plan, design, and install electrical systems. A journeyman electrician has yet to qualify for a master’s license and often works directly with one. He/she is licensed by the state but is only qualified to install wiring and equipment, he cannot design systems.
Create a Short List:
Most electricians specialize in a certain type of work. Some focus on new construction, commercial work or making service calls to fix standard electrical needs. Others specialize in remodeling and additions and have an extensive knowledge of techniques blending new wiring into existing structures. They are familiar with capacity needs of existing circuits and when a project requires adding another service panel.
Start creating a list of possible
electricians based on the specialized project you are looking to complete. Recommendations can be provided by your current
general contractor, local home builders associations, and local
electrical supply stores, or by visiting the
Electric Contractors heading on
MyYP.com.
Narrow the List:
Contact each
electrician on the short list and request a copy of their license and proof of insurance. It is critical that both of them are current.
Insurance coverage should cover a liability minimum of $500,000. If everything is in order, ask for a list of references. Call the references and ask if you can view the final project. Seeing the electrician’s work first hand is an excellent indication of their skill level and dedication. Check service panels to ensure wiring is clean and orderly. Verify that receptacles are flush to the wall and plumb. Quality
electricians take the time to ensure the job is done right and neatly.
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