One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 261
Thread Content
In the event of a ground fault, the closer a person is to the grounded object, the higher the step voltage; the farther away they are, the lower it is. Under normal circumstances, when the distance from the object is approximately ( ), the step voltage is considered to be zero. Within 10m ； Outside B20m ； C more than 30m away. Answer: B
Under normal circumstances, the step voltage at a distance close to the body (beyond 20m) is considered zero.
In the event of a ground fault, the closer a person is to the grounded object, the higher the step voltage; the farther away, the lower it is. Under normal circumstances, the step voltage is considered zero when the distance from the object is more than 20 meters.
When a ground fault occurs in bg1.png, the closer a person is to the grounded object, the higher the step voltage; the farther away, the lower it is. Under normal circumstances, the step voltage at a distance close to the object (B) is considered to be zero. Within 10m ； Outside B20m ； C more than 30m away.
C more than 30m away. In the event of a ground fault, the closer a person is to the grounded object, the higher the step voltage; the farther away, the lower it is. Generally, when the distance from the object is more than 30 meters, the step voltage is considered to be zero.
In the event of a ground fault, the closer a person is to the grounded object, the higher the step voltage; the farther away they are, the lower it is. Under normal circumstances, the step voltage is considered zero when the distance from the object is close to zero (B).
Outside B20m； ! ! ! ! ! ! ! ! ! ! ! ! ! !