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If the minimum resistance of the human body is 1200 Ω, what is the maximum voltage allowed to be applied to the human body
U=IR=0.03x1200=36(V)
The safety voltage is determined by the product of the current allowed by human body and the resistance of human body
Right or wrong?
1. Because each person's individual response to electricity is different, and also has a great relationship with the humidity of the environment. In addition, the direct current or alternating current is different. Of course, the basis must be based on the situation of the human body
2. There are standard provisions (gb3805). It is generally safe for human body when the voltage level is 24 V (24, 12, 6V). In addition, 42V and 36V also belong to the scope of safe voltage level, but relevant protection measures are required
Why is the voltage low in peak period
Parallel circuit is not equal voltage shunt ~ why the voltage will become low
When the power of the transformer remains unchanged, the current will increase and the voltage will decrease at the peak of power consumption. Moreover, when the power and current increase at the peak of power consumption, the voltage generated by the line will increase, so the voltage will also decrease
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