High voltage systems can be very dangerous. It is described as “electrical circuits in which the voltage used is the cause of particular safety concerns and insulation requirements.” High voltage is commonly used in electrical power distribution. There are two factors that are considered when classifying high voltage. One is with a spark in the air. The second is the danger of electric shock by contact or just being close. These can refer to the voltage either between two conductors of a system or between any conductor and a ground.
High voltage is too dangerous for individuals. Some solar powered systems deal with DC or direct current up to 600 volts. I have experience with 480 volts (AC)at a shipyard. But DC is a lot different than working with AC. DC reaches out and touches. “Voltages of greater than 50 V applied across dry unbroken human skin are capable of producing heart fibrillation if they produce electric currents in body tissues that happen to pass through the chest area.” In other words, DC can be a heart stopper. DC is very dangerous. If you have an accidental contact with high voltage, you may experience severe injury, burns, or death. Because of its arching capabilities, DC is commonly known for burns. Many people think DC is nothing because they use it every day like in batteries.
Electricians are trained but not in every facet of the electrical field. Take generators for instance. Not every electrician knows how to fix problems that occur within a generator. Many electricians are identified with one field. For instance, an electrician might be known for residential, commercial, or industrial. They can specialize within an area like conduit bending. But just because someone is an electrician doesn’t mean they have encountered every facet within the electrical field.
A lot of the jobs that I have gone to that was done by the homeowner have actually made more work for me. I had to help them to do the work. Once on the site, I explain to the homeowner the things he did wrong and what he needs to do to correct it. It is usually 90% of their work will need replacing and repairing. I know that discourages homeowners by pointing out the problems but I must point out code. Many times the things that homeowner Harry does every day is not as simple as they think. You must follow the NEC, National Electric Code.
If you are planning on installing solar powered system, I suggest you hire a contractor that is a certified solar installer with an electrical license to install it. He is designated within that field. Just like a generator repair man, he is designed to install and repair generators. You need to find the same within the solar field. High voltage is nothing to play with. Hit the comment button below and tell me how you found your solar installer.
"Electricians are trained but not in every facet of the electrical field."
Always make sure your electrician or electrical contractor is qualified to do the job you are hiring him/her to do. Check references and make sure he/she has a valid contractor's license.
Posted by: Electrician | October 04, 2011 at 03:27 PM