Texas Professional Inspector License #21796
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Electricity is an essential part of our lives. But, it has the potential to cause great harm. Electrical systems will function almost indefinitely, if properly installed and not overloaded. Electrical fires in our homes claim the lives of approximately 500 Americans each year and injure 2,405 more. Some of these fires are caused by electrical system failures and appliance defects, but many more are caused by the misuse and poor maintenance of electrical appliances, incorrectly installed wiring, and overloaded circuits and extension cords. Some safety tips to remember:
- Never use anything but the proper fuse to protect a circuit.
- Detect and correct overloaded circuits.
- Never place extension cords under rugs.
- Outlets near water should be GFCI protected.
- Don't allow trees near power lines to be climbed.
- Keep ladders, kites, equipment and anything else away from overhead power lines.
Electricity enters the home through a control panel and a main switch where one can shut off all the power in an emergency. In Texas, these panels are usually located in the garage. Control panels use either fuses or circuit breakers. Install the correct fuses for the panel. Never use a higher-numbered fuse or a metallic item, such as a penny. If fuses are used and there is a stoppage in power, look for the broken metal strip in the top of a blown fuse. Replace the fuse with a new one marked with the correct amperage. Reset circuit breakers from "off" to "on." Be sure to investigate why the fuse or circuit blew. Possible causes include frayed wires, overloaded outlets, or defective appliances. Never overload a circuit with high-wattage appliances. Check the wattage on appliance labels. If there is frayed insulation or a broken wire, a dangerous short circuit may result and cause a fire. If power stoppages continue or if a frayed or broken wire is found, contact an electrician.
Outlets and Extension Cords
Make sure all electrical receptacles or outlets are three-hole, grounded outlets. If there is water in the area, there should be a GFCI or ground-fault circuit interrupter outlet. All outdoor outlets should be GFCIs. There should be ample electrical capacity to run equipment without tripping circuit breakers or blowing fuses. Minimize extension cord use. Never place them under rugs. Use extension cords sparingly and check them periodically. Use the proper electrical cord for the job, and put safety plugs in unused outlets.
Appliances need to be treated with respect and care. They need room to vent. Avoid enclosing them in a cabinet without proper openings, and do not store papers around them. Level appliances so they do not tip. Washers and dryers should be checked often. Their movement can put undue stress on electrical connections. If any appliance or device gives off a tingling shock, turn it off, unplug it, and have a qualified person correct the problem. Shocks can be fatal. Never insert metal objects into appliances without unplugging them. Check appliances periodically to spot worn or cracked insulation, loose terminals, corroded wires, defective parts and any other components that might not work correctly. Replace such appliances or have them repaired by a qualified individual.
Electrical Heating Equipment
Portable electrical heating equipment may be used in the home as a supplement to the home heating system. However, caution must be taken when using these heating supplements. Keep them away from combustibles, and make sure they cannot be tipped over. Keep electrical heating equipment in good working condition. Do not use them in bathrooms because of the risk of contact with water and electrocution. Many people use electric blankets in their homes. They will work well if they are kept in good condition. Look for cracks and breaks in the wiring, plugs and connectors. Look for charred spots on both sides. Many things can cause electric blankets to overheat. They include other bedding placed on top of them, pets sleeping on top of them, and putting things on top of the blanket when it is in use. Folding the blankets can also bend the coils and cause overheating.
Electricity and Water
A body can act like a lightning rod and carry an electrical current. People are good conductors of electricity, particularly when standing in water or on a damp floor. Never use any electrical appliance in the tub or shower. Never touch an electric cord or appliance with wet hands. Do not use electrical appliances in damp areas or while standing on damp floors. In areas where water is present, use outlets with GFCIs. Shocks can be fatal.
Several electrical hazards exists outside the home. Be aware of overhead and underground power lines. People have been electrocuted when an object they are moving has come in contact with the overhead power lines. Keep ladders, antennae, and poles away from power lines leading to the house and other buildings. Do not plant trees, shrubs or bushes under power lines or near underground power lines. Never build a swimming pool or other structure under the power line leading to your house. Before digging, learn the location of underground power lines.
Do not climb power poles or transmission towers. Never let anyone shoot or throw stones at insulators. If you have an animal trapped in a tree or on the roof near electric lines, phone your utility company. Do not take a chance of electrocuting yourself. Be aware of weather conditions when installing and working with electrical appliances. Never use electrical power tools or appliances with rain overhead or water underfoot. Use only outdoor lights, fixtures and extension cords. Plug into outlets with a GFCI. Downed power lines are extremely dangerous. If you see a downed power line, call the electric company, and warn others to stay away. If a power line hits your car while you are in it, stay inside unless the car catches fire. If the car catches fire, jump clear without touching metal and the ground at the same time.
In summary, household electrocution can be prevented by following the tips offered in this guide and by hiring an InterNACHI inspector.
Why do many garages pose a fire hazard?
The following tips can help prevent garage fires and their spread:
- Where are you most likely to do any welding, or any work on your car? These activities require working with all sorts of flammable materials.
- Water heaters and boilers are usually stored in garages, and they can create sparks that may ignite fumes or fluids. Car batteries, too, will spark under certain conditions.
- Oil and gasoline can drip from cars. These fluids may collect unnoticed and eventually ignite, given the proper conditions.
- Flammable liquids, such as gasoline, motor oil and paint are commonly stored in garages. Some other examples are brake fluid, varnish, paint thinner and lighter fluid.
If there is a door that connects the garage to the living area, consider the following:
- If the garage allows access to the attic, make sure a hatch covers this access.
- The walls and ceiling should be fire-rated. Unfortunately, it will be difficult for untrained homeowners to tell if their walls are Type X fire-rated gypsum. An InterNACHI inspector can examine the walls and ceiling to make sure they are adequate fire barriers.
- The floor should be clear of clutter. Loose papers, matches, oily rags, and other potentially flammable items are extremely dangerous if they are strewn about the garage floor.
- Use light bulbs with the proper wattage, and do not overload electrical outlets.
- Tape down all cords and wires so they are not twisted or accidentally yanked.
Concerning items placed on the floor, you should check for the following:
- Do not install a pet door in the door! Flames can more easily spread into the living area through a pet door, especially if it's made of plastic.
- Does the door have a window? An InterNACHI inspector can inspect the window to tell if it's fire-rated.
- The door should be self-closing. While it may be inconvenient, especially while carrying groceries into the house from the car, doors should be self-closing. You never know when a fire will happen, and it would be unfortunate to accidentally leave the door open while a fire is starting in the garage.
- Check the joints and open spaces around the door. Are they tightly sealed? Any openings at all can allow dangerous fumes, such as carbon monoxide or gasoline vapor, to enter the living area. An InterNACHI inspector can recommend ways to seal the door so that fumes cannot enter the living area.
In summary, there are plenty of things that you can do to prevent garage fires from spreading to the rest of the house, or to keep them from starting in the first place. However, it is highly recommended that you have your garage periodically examined by an InterNACHI inspector.
- Store your flammable liquids in clearly labeled, self-closing containers, and only in small amounts. Keep them away from heaters, appliances, pilot lights and other sources of heat or flame.
- Never store propane tanks indoors. If they catch fire, they can explode. Propane tanks are sturdy enough to be stored outdoors.
Central Air-Conditioning System Inspection
A building's central air-conditioning system must be periodically inspected and maintained in order to function properly. While an annual inspection performed by a trained professional is recommended, homeowners can do a lot of the work themselves by following the tips offered in this guide.
Clean the Exterior Condenser Unit and Components
The exterior condenser unit is the large box located on the side of the building that is designed to push heat from the inside of the building to the outdoors. Inside of the box are coils of pipe that are surrounded by thousands of thin metal "fins" that allow the coils more surface area to exchange heat. Follow these tips when cleaning the exterior condenser unit and its inner components -- after turning off power to the unit!
Inspect the Condensate Drain Line
- Remove any leaves, spider webs and other debris from the unit's exterior. Trim foliage back several feet from the unit to ensure proper air flow.
- Remove the cover grille to clean any debris from the unit's interior. A garden hose can be helpful for this task.
- Straighten any bent fins with a tool called a fin comb.
- Add lubricating oil to the motor. Check your owner's manual for specific instructions.
- Clean the evaporator coil and condenser coil at least once a year. When they collect dirt, they may not function properly.
Condensate drain lines collect condensed water and drain it away from the unit. They are located on the side of the inside fan unit. Sometimes there are two drain lines-a primary drain line that's built into the unit, and a secondary drain line that can drain if the first line becomes blocked. Homeowners can inspect the drain line by using the following tips, which take very little time and require no specialized tools:
Clean the Air FilterThe air filter slides out for easy replacement
- Inspect the drain line for obstructions, such as algae and debris. If the line becomes blocked, water will back up into the drain pan and overflow, potentially causing a safety hazard or water damage to your home.
- Make sure the hoses are secured and fit properly.
Air filters remove pollen, dust and other particles that would otherwise circulate indoors. Most filters are typically rectangular in shape and about 20 inches by 16 inches, and about 1 inch thick. They slide into the main ductwork near the inside fan unit. The filter should be periodically washed or replaced, depending on the manufacturer's instructions. A dirty air filter will not only degrade indoor air quality, but it will also strain the motor to work harder to move air through it, increasing energy costs and reducing energy efficiency. The filter should be replaced monthly during heavy use during the cooling seasons. You may need to change the filter more often if the air conditioner is in constant use, if building occupants have respiratory problems,if you have pets with fur, or if dusty conditions are present.
In addition, homeowners should practice the following strategies in order to keep their central air conditioning systems running properly:
Have the air-conditioning system inspected by a professional each year before the start of the cooling season.
Reduce stress on the air conditioning system by enhancing your home's energy efficiency. Switch from incandescent lights to compact fluorescents, for instance, which produce less heat.
In summary, any homeowner can perform periodic inspections and maintenance to their home's central air-conditioning system.
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