Interestingly, while most people think of electricity in terms of voltage, the most dangerous aspect of electrical shock is the amperage, not the voltage.
Voltage and amperage are two measures of electrical current or flow of electrons. Voltage is a measure of the pressure that allows electrons to flow, while amperage is a measure of the volume of electrons.
An electrical current at 1, volts is no more deadly than a current at volts, but tiny changes in amperage can mean the difference between life and death when a person receives an electrical shock. Although the physics are complicated, some experts use an analogy of a flowing river to explain the principles of electricity. In this analogy, voltage is equated with the steepness, or pitch, of the river, while amperage is equated with the volume of water in the river.
An electrical current with high voltage but very low amperage can be seen as a very narrow, small river flowing nearly vertical, like a tiny trickle of a waterfall.
It would have little potential to really hurt you. But a large river with lots of water amperage can drown you even if the speed of flow voltage is relatively slow. Of the two, amperage is what creates the greatest risk. Different amounts of amperage affect the human body in different ways. The following list explains some of the most common effects of electrical shock at various amperage levels, according to the U. To understand the amounts involved, a milliampere mA is one-thousandth of an ampere or amp.
A standard household circuit that supplies your outlets and switches carries 15 or 20 amps 15, or 20, mA. This gives you an idea of just how much danger there is in the home wiring system we take for granted, where wires carry 15, or 20, mA.
Looking back at our example of water flowing through a hose, we can now see how power is directly related to current and voltage using this equation. The faster the wheel turns, the more power is generated. If the hose size remains the same, we can make the wheel turn faster in two ways. The first is to increase the flow rate, which means more water and weight are hitting the wheel and spinning it faster.
The second way is to increase the water pressure so that the water is hitting the wheel with more force and turning it faster. In our analogy, the water flow rate is equivalent to current and water pressure is equal to voltage. As the equation above shows, if you increase either the current or the voltage, your power will also increase. Now that you have a basic understanding of the fundamentals of power and electricity, you should be able to tackle your RV electrical projects with a little more confidence.
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Hi Suzanne, happy to help with this one! Our team suggests using just an adapter to a V device will be enough for your rig! Please let us know if you have any additional questions and have a great rest of your afternoon. I want to build a camper can I the spring. I want a BattleBorn lithium battery for my electric needs. Will I need an inverter, converter, or router or all 3?
How much solar will I need? The efficiency of electric motors also improves at higher voltages. This improvement in efficiency is what drove the automobile industry to consider switching from volt electrical systems to volt systems in the s. As more cars shipped with electric-powered amenities — video displays, seat heaters, "smart" climate control — they required thick bundles of wiring to supply enough current.
Switching to a higher-voltage system would provide more power with thinner-gauge wiring. The switch never happened , because carmakers were able to boost efficiencies with digital technology and more efficient electric pumps at 12 volts.
But some new models employ hybrid systems with a separate volt generator to power advanced features like idle shut-off while increasing overall system efficiency. Sign up for our Newsletter! Mobile Newsletter banner close.
Mobile Newsletter chat close. Mobile Newsletter chat dots. Mobile Newsletter chat avatar. Mobile Newsletter chat subscribe. Environmental Science. Energy Production. Some pylons near a power transform station at sunrise. More voltage in an electrical system makes more current flow. Electrical Efficiency " ". Electrical systems are more efficient when a higher voltage is used to reduce current. How much does it cost to run an electric blanket?
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