Tag Archives: wind power

Eye Protection, General Safety Issues, Head Protection, Protective Clothing

MAY IS NATIONAL ELECTRIC SAFETY MONTH

The theme of this year’s National Electrical Safety Month is “Be in the Know about the New.”  Sponsored by the Electrical Safety Foundation (ESFI), a non-profit organization dedicated exclusively to promoting electrical safety in the home, school, and workplace.  This month’s observance is to increase public awareness of electrical hazards in order to reduce the number of electricity-related fires, fatalities, injuries, and property loss.  We often take electricity for granted.  There are new ways of furnishing electricity, such as solar power and wind power.  The electricity that you use in your home travels through an electrical grid, going through an interconnected network of generating plants, transformers, and transmission lines.  

Solar power is derived from sunlight.  Sunlight can be directly utilized, converted in electrical energy, or converted into mechanical energy.  This is an important source of sustainable alternate energy.  Three common types of solar power are:

  •         Passive Solar
  •         Photovoltaic (Solar Cells)
  •         Solar Thermal (Electric Power Plants)

Solar power is advantageous for its cost effectiveness and environmental friendliness.  However, before choosing to install a solar power system for your home there are a variety of considerations.

  •          Your property should have open rooftop space or land that is free of shade five hours per day. 
  •          You should have your home evaluated by a licensed, qualified professional to ensure it can support this new technology.
  •          Only professionals should be hired to install and repair solar panels at your home or workplace.
  •          Building, electrical, and plumbing codes also apply to solar power installations.
  •         Solar power systems present unique safety challenges for fire fighters.  In the event of a fire, inform all officials of the use of solar panels as well as  identify the type used, in order to help them assess the risks. 

Wind power has become more mainstream in recent years.  The power of the wind is harnessed and transformed into electrical energy through the use of wind turbines; when wind blows over the blades of the wheel, it creates lift, causing them to turn.  The blades are connected to a shaft, which turns an electric generator, thus converting kinetic energy into electric energy.

Here again, there are certain aspects that homeowners should consider, such as:

  •          An average annual wind speed of at least 10 mph is considered necessary to make a small wind system economical.
  •          Determine the requirement and costs for connecting your system to the grid by checking with your utility company.
  •          Be sure of your household electricity needs and purchase the correct size wind turbine. 

We have named a couple of new sources of electric energy.  One thing remains: electricity is dangerous.  Here are some things you should know about electrical safety: 

  •          Arcing faults are one of the major causes of more than 50,000 home electrical fires that occur each year in the United States.  This is a dangerous problem caused by damaged, overheated, or stressed electrical wiring or devices.
  •          GFCI’s (Ground Fault Circuit Interrupters are designed to protect people from shock and electrocution.  They constantly monitor electricity flowing in a circuit, and switch off power if they sense any loss of current.  According to the Consumer Product Safety Commission, GFCI’s could prevent over two-thirds of home electrocutions that occur each year.
  •         TRR’s (Tamper Resistant Receptacles) look like regular outlets, but are designed with spring-loaded receptacle cover plates that close off the receptacle openings, or slots.  The 2011 National Electrical Code (NEC) requires installation of TRRs in all new homes because they have proven to be so effective.
  •          Every year in the U.S. more than 2,400 children under ten years old are treated in emergency rooms for electric shock or burns caused by tampering with a wall outlet, which could have been prevented by having TRRs in the home. 

It is estimated that electricity causes 140,000 fires each year.  Electricity kills almost 400 people and injures thousands more annually.  Most could have been avoided with an increased awareness of electrical safety.  Power line contact with construction equipment, ladders, and gardening tools are among the leading cause of electrocutions.  Flickering lights, overloaded circuits, and discolored outlets and light switch faceplates indicate the need for electrical upgrades.  By addressing these hazards, lives can be saved, injuries reduced, and economic losses caused by electrical fires will be lessened.

Utility company personnel are required to wear several types of Personal Protective Equipment, such as special safety glasses with dielectric hinges designed without metal parts, hard hats, antistatic shoes and antistatic coveralls (flame retardant).  

This article was shared with Jack Rubinger,  http://graphicproducts.blogspot.com/2012/04/may-is-national-electrical-safety-month.html 

Source: Electrical Safety Foundation International (ESFI)

 

 

 

General Safety Issues, Uncategorized

WHAT’S BLOWING IN THE WIND?

In many sections of the United States, you have probably seen these tall, windmill-looking structures on the landscape. They look very peaceful, gracefully creating a new type of power to help energize our country.

Wind turbines have been used in Europe for a number of years, and in the past several years have become popular in the U.S.  Mechanical power from windmills is used to pump water, energy for grinding, etc.

Working opposite of a fan, which makes wind, turbines use wind to make electricity.  The huge blades spin a shaft inside, which connects to a generator and makes electricity.  A large group of these turbines contribute energy to the utility grid of power companies, and in turn, are distributed to homes, schools, and businesses.

  1. For persons who are contemplating using this type of energy, there are many things to be considered. The cost of interconnecting with the electric company, insurance in case the turbine causes damage or problems to utility systems, and liability insurance for damage to nearby properties.
  2. One of the hazards of the turbines are icing of blades, which could result in shedding of ice.Severe weather might cause problems.
  3. Blade throws are another hazard mentioned; however, these wind turbines are state-of-the-art and very safe. Equipped with sensors, blade throws are virtually non-existent.  The turbines have controllers that start the turbine when the wind is 8 to 16 MPH, and stop it if the wind reaches 55 MPH, due to risk of damage.
  4. Lastly, studies have been done by several medical experts that in certain cases, there is a correlation between persons who have been exposed for long periods of time to low frequency noise and vibration and living too close to a wind farm, that have experienced health problems.

Because every contractor is concerned with safe operations, the wind energy industry poses unique safety concerns.  The size of the propellers and remote location of the wind farms are two issues.  There has been a lack of a cohesive industrial study for wind project safety; however, a process has recently begun by an ANSI A10 subcommittee made up of wind industry experts and safety professionals.  As with any industry, training and planning are key elements to successful safety programs.

Issues being considered are:

  • On-Site Rescue: because of their remote locations, emergency personnel are not close by or may not be equipped with tools necessary to rescue persons from high structures.  Personnel of the contractor must be trained and able to reach injured workers, getting them to the ground and ready for local EMS to take over.
  • Weather Planning: Because some of the farms are located where harsh conditions exist, such as high winds, dust, ice, rain, the appropriate Personal Protective Equipment must be used, and workers must be trained to recognize when weather circumstances exceed safe working conditions.
  • Multiple Contractors: Several specialty contractors are involved in building wind farms, and all have to work in close proximity with each other.  Each contractor should know what hazards are present in the project, and communicate this information with all other contractors.  Communication is necessary to have successful safety performances.

It will be fascinating to see how many more of these wind farms will be built.  It’s a great plan to help with the demand for energy that is needed to keep our country going.