AE 868
Commercial Solar Electric Systems

Other Hazards

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Exposure to sun

PV systems are installed where the sun is brightest and no shade exists. Sunburn and dehydration due to extreme temperature may occur.

Insects, Snakes, and Other Vermin

Installers should pay attention to any of inhabitant in the site where the PV system will be installed. Serious injuries may occur due to neglect. The site may be treated against these hazards before the installation starts.

Cuts and Bumps

Most PV systems contain metal items with sharp edges and can cause injury if you are not careful. Installers should wear gloves when handling metal, particularly if you are drilling or sawing.

Falls, Sprains, and Strains

Many PV systems are installed in remote areas in rough terrain with different altitudes. Walking to and around the site, particularly carrying materials or test equipment, can result in falls and/or sprains. Installers should follow correct dress codes from head to toe.

The following videos offer more on sprains and strains.

Video: Sprains and Strains in Construction/Pulling Cables (2:47)

Sprains and Strains in Construction/Pulling Cables.
Click for transcript of Sprains and Strains in Construction/Pulling Cables.

Each year in the U.S., 31,000 construction workers seek medical attention due to sprains and strains suffered on the job. These injuries happen when the human body is forced to work beyond its limits. Lifting, pulling, pushing, reaching, bending, and other common construction activities can cause these injuries. The pain resulting from these injuries can last a lifetime and affect construction workers' lives at work and at home. But these injuries can be prevented.

This video shows how overexertion at construction sites can lead to worker injuries. The video will also show what employers must do so that the work can be done more safely. Employers have a responsibility to provide a safe workplace and required protective equipment. You'll see that taking the right protective steps can help prevent these injuries.

An experienced commercial electrician was wiring a newly built commercial building. He had been doing this kind of work for several years. While standing on a ladder that was too short for the job, he pulled long runs of a heavy gauge wire. He then attached the wiring above his head to the ceiling. The job involves awkward pulling movements while reaching overhead.

After several days on the job, the stress on the electrician's arms, neck, back, and shoulders has become too much. As a result, the pain the electrician feels has affected his ability to do the work.

Let's look at the events leading up to these injuries, and see how they could have been prevented. As before, the electrician is attaching wiring to the ceiling.

But this time, he is standing on an elevated platform that is the right height for the job. This reduces his overhead movements, and prevents stress to his body. Also, as he attaches the wiring, he is now using a mechanical wire puller to get the wire he needs. This way, he doesn't hurt himself by pulling the wire by hand and straining his body as he did before. Making these types of small changes in work activities can prevent painful injuries.

This example shows the importance of employers using OSHA's ergonomics guidelines. These are guidelines designed, so workers can avoid stress and injury to their bodies. These types of injuries are preventable.

Follow OSHA's guidelines at work sites. By following the guidelines, workers can avoid suffering a lifetime of pain from these injuries.

If you would like more information, contact OSHA at www.osha.gov or 1-800-321-OSHA that's 1-800-321-6742.

Credit: US Department of Labor

Video: Sprains and Strains in Construction/Laying Stone (2:44)

Sprains and Strains in Construction/Laying Stone.
Click for transcript of Sprains and Strains in Construction/Laying Stone.

Each year in the U.S., 31,000 construction workers seek medical attention due to sprains and strains suffered on the job. These injuries happen when the human body is forced to work beyond its limits. Lifting, pulling, pushing, reaching, bending, and other common construction activities can cause these injuries. The pain resulting from these injuries can last a lifetime and affect construction workers' lives at work and at home. But these injuries can be prevented.

This video shows how overexertion at construction sites can lead to worker injuries. The video will also show what employers must do so that the work can be done more safely. Employers have a responsibility to provide a safe workplace and required protective equipment. You'll see that taking the right protective steps can help prevent these injuries.

An experienced stonemason and her tender were using large stone pieces to build a walkway for a new two-story town home. A concrete slab was already in place, and the workers were putting the stone on top of the slab. The tender was mixing the mortar in five-gallon buckets and carrying the mortar to the mason.

After the mason spread some of the mortar onto the concrete slab, the workers bent over at the waist to pick up one of the heavy stone pieces. They kneeled down and hunched over to lay the stone piece on top of the mortar. After several days of carrying these heavy loads and kneeling and hunching while doing their work, both of these workers are experiencing severe lower back and knee pain.

Let's look at the events leading up to these injuries, and see how they could have been prevented. As before, the tender is mixing mortar. This time, a cement mixer is being used and the tender wheels the mortar over to the stonemason. The stone pieces have also been placed off the ground, and both workers are now wearing knee pads. After the mason spreads some of the mortar, the workers pick up and lay one of the stone pieces into the wet mortar. Making these types of small changes in work activities can prevent painful injuries.

This example shows the importance of employers using OSHA's ergonomics guidelines. These are guidelines designed, so workers can avoid stress and injury to their bodies. These types of injuries are preventable.

Follow OSHA's guidelines at work sites. By following the guidelines, workers can avoid suffering a lifetime of pain from these injuries.

If you would like more information, contact OSHA at www.osha.gov or 1-800-321-OSHA or 6742.

Credit: US Department of Labor

Burns

Metal left exposed in the sun can reach high temperatures that can cause serious thermal burns. In addition, most stand-alone PV systems contain acid batteries that can create acid burn hazards. Chemical burns will occur if the acid makes contact with an unprotected part of the body. Safety glasses and gloves are recommended for installers.