solar panels and electric?
Is there any possibility of being electrocuted by the solar panels? Is there a risk to firefighters when they enter in a building where solar power is not standing in a puddle of water if no short circuit between the solar panels and water. Normal cut power before entering the buildings, but not enough juice from residential solar panels to consider this a risk? edit: you can place a normal shutdown switch, solar panel and connect to the fire alarm for industrial systems, the switch should be open even when the power fails. And he is right in saying that is the current that kills, but we always have to have enough volts for a current through a decent human being (regardless of the maximum output current is). The real question is, do Solar panels have a fixed current output (then its dangerous) or a fixed voltage (at the time with a maximum of 50 volts is not even a problem wet)
Solar panels are usually 12 or 24 volts for children, and the voltages are quite safe. larger matrices can be connected in series or in parallel, depending on the configuration of the battery. It is likely that a large facility to produce 48 volts or more, and tensions can be dangerous. The voltages high are used in large facilities to reduce the cost of wiring. But any investor has a solar array somewhere, running with a battery, and that is the output 240 VAC or 120, and that is definitely dangerous. So this raises an interesting point. If all solar panel installations include a cutoff switch accessible firefighters? It seems that they should. The switch has to cut the tension in the matrix, and also turn off the inverter. edit: but to disconnect the array voltage is not sufficient because the matrix is still without electricity (assuming that the sun is shining). One possibility is to use a relay for multiple poles located near matrix to open two wires + and - in the array. Thus, there is no path for current to reach the ground. If the water is all wet, the matrix itself was cut through but still isolated from the earth. But what if the relay fails? Max, who seems to have the idea that it takes a large amount of current that are dangerous. No, can 20mA happen to you, 50mA can kill you, and there are plenty of arrangements we can make many amps 48 volts. Edit2: "Edit: you can put a switch to normal off in the solar array and connect it to the fire alarm for industrial systems, the switch should be open even when the power fails. And he is right in saying that is the current that kills, but still have to have enough volts to get a decent flow through a human (regardless of the maximum output current is). True question is, do the solar panels have a fixed current output (then its dangerous) or a fixed tension (at the time with a maximum of 50 volts is wet or even a problem) "I'm sorry, 50 volts is a problem, many people have been killed from 50 volts. I admit it's not as likely as 100 or 200 volts, but it is still possible, especially with plenty of water around. Suddenly I do not remember UL, but I think it is about 20 volts. Solar panels have a variable voltage depending on the amount of light in them. You have to plan at the highest possible voltage. The current output is usually in the tens of amps or higher than enough to kill, so is the voltage that will determine the current through your body. edit3: dividing the world into constant voltage sources and current sources constant does not make sense, since neither exists in real life. All sources of stress are an imperfect voltage source or current source imperfect or something in between ..
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P3 International P4400 Kill A Watt Electricity Usage Monitor
$50.00 Empowers You to Save Hundreds on Electric Bills Electricity bills are rising. Now you can cut down on costs and find out what appliances are actually worth keeping plugged in. Simply connect these appliances to the Kill A Watt, and it will assess how efficient they really are. The large LCD display counts consumption by the kilowatt-hour, the same as your local utility. You can calculate your elec... |
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$30.80 Energy Film Shade is a thin, tinted window film that provides immediate year-round energy savings by retaining interior heat in the winter and blocking solar heat in the summer. Energy Film Shade is an inexpensive and easy way to make the home or office more energy efficient while providing UV protection. It is easy to apply and uses no adhesives.Summer/Winter insulating filmSaves up to 12-18% of ... |
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A Complete Guide to the Installation of Off-Grid PV Solar Power Systems
$46.55 This DVD set is a 4 hour, 16 chapter comprehensive course on the installation of Off-Grid photovoltaic solar power electric systems. It is designed to take the complete beginner to full competency. The course is taught by Bob Nagy who is the teacher in over 40 videos on high-tech subjects. Bob's bio includes 20 years at the University of Texas, ABC TV, and NASA. His clear and friendly style bri... |
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AIMS AGM 6 Volt Battery - 220 Amp
$319.00 The Deka Solar series of batteries is designed to offer reliable, maintenance-free back-up power for renewable energy applications where frequent deep cycles are required and minimum maintenance is desirable. We offer AGM and gel technologies to fit all of your solar applications including: Solar Panel Electricity Collection, Water Pumping, Wind Generation, Cathodic Protection, Lighting Navigation... |
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Deka 12 Volt Gel Battery - 225 Amp
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$350.99 The Deka Solar series of batteries is designed to offer reliable, maintenance-free back-up power for renewable energy applications where frequent deep cycles are required and minimum maintenance is desirable. We offer AGM and gel technologies to fit all of your solar applications including: Solar Panel Electricity Collection, Water Pumping, Wind Generation, Cathodic Protection, Lighting Navigation... |
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Sunforce 50033 15-Watt Solar Charging Kit
$94.95 Works with Automobiles/Boats/Tractors/ATVs/Electric Fences/Deer Feeders/Telemetry and More. Maintenance Free / Easy Installation. Pre Cut Holes for Easy Installation. 4 Stainless Steel Screws. Battery Clamps. CLA Adapter. 12ft Wire. 7 Amp Charge Controller. Works in All Weather Conditions. Ultra Bright Blue LED Provides Charging Indication. Built-in Blocking Diode Protects Battery Discha... |
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Sunforce 50048 60-Watt Solar Charging Kit
$279.95 The Sunforce 50048 60-Watt Solar Charging Kit gives you several more reasons to love the sun. It provides the power you need, while helping you save money and protect the environment. This kit is ideal for cabins, recreational vehicles, remote power, back-up power, and 12-volt battery charging. It comes with everything you need to start producing up to 60 Watts/4 Amps of clean, free power in all w... |
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Solar Wind Turbine - Polished Aluminum
$109.95 This beautiful 1:87 scale miniature wind turbine makes a great executive gift. Restful and hypnotic in action. Turbine blades spin when sunlight falls on the solar panel. Polished aluminum model and stand with high quality solar cell. Batteries not needed. Requires simple assembly. Excellent for demonstrating solar power in action... |
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