The decision should not be taken lightly because it depends on the efficient functioning and durability of an installation of photovoltaic panels. Then briefly detail my analysis of both possibilities through the search and study of the options available on the Internet. Buy solar panels used. This seems the most logical choice to rule after the purchase of new panels. There are a variety of prices, brands, and qualities that allows choosing the most appropriate to our needs.
It's great that there is this wide range of offerings, but on the other side may be a degree of complication. It is necessary to know the technical basis for solar power generation to make a good choice and purchase. Avoid being led by a great price without checking carefully the operating status of the panels. Construction of solar panels. It may seem odd, but to build solar panels do not need to be technical. These devices are surprisingly simple and there are many manuals, guides and instructions available for construction. The great advantage is that a homemade panel is built with new parts at a price much lower than that of a panel used.
The downside is obvious, it takes desire and some time to undertake this work. My decision. I prefer the new products, especially for electrical devices, because of that and the low costs involved, I decided to build my own solar panels. I would like now to share the results of my search, hoping that this information is useful for those who want to switch to clean energy and significantly reduce their energy supply costs. In the link I put down is a good summary of what is in my opinion the best choices in terms of self-built photovoltaic systems. It is a professional guide with step by step videos designed for anyone to follow instructions, no matter the lack of expertise or level of English.
A series of laws (ANVISA) regulates this procedure, and defines 14 a gamma of products that are citizens to the system of quality how much to the potential risk the health in users on the basis of norms techniques NBR-IEC, to be applied to the suppliers of medical products and in the fulfilment of the rules of the document ' ' Good the Practical ones of Manufacture of Mdicos' Products; '. In Brazil as well as in diverse countries attention in the certification of medical products if concentrates before the commercialization. The eletromdicos equipment not yet is citizens the conformity evaluation after the commercialization, in use, done exception to some equipment of x-ray and 15 radiodiagnstico . Lasers of low power characterized by not ionizing the electromagnetic radiation, (monochromatic, polarized and coherent) is studied and used clinically it has more than four decades in the treatments neuro-to articulate and of human fabrics and for being capable to induce a fotobiolgico process, or of bioestimulao, not-thermal and not-destructive they do not modify the cellular functions, being one practical one considered for literature, relatively 16 insurance . Amongst the resultant effect of the equipment the laser 17 with low intensities frequently used in therapeutical processes, exists the adverse ones, provoked for the emission of the radiation laser and that they must be observed how much to the security aspects. In them the ocular effect are enclosed, whose protection must guarantee safe levels of radiation absorption. Norm IEC 60825-1 (NBR IEC 601.2.22) suggests security requirements 18 in eletromdicos equipment the laser, including the ocular protection, based in levels of permissible maximum expositions. Biological effect (physiological, biochemists or induced mannering alterations in an organism, fabric or cell) occur when they are detectable changes capable to be measured in a biological system, after the introduction of some types of stimulatons. The comment of a biological effect 19, not necessarily suggests the existence of a biological danger or a harmful effect to the health, therefore it becomes a security risk if the detectable causes to result in damages to the health of the individual.