5 ms·
In theory if you leap from the bus such that you are completely in the air for a moment, you won't be in contact with a conductor and the ground at the same tim
by dharmab 5y ago
In theory if you leap from the bus such that you are completely in the air for a moment, you won't be in contact with a conductor and the ground at the same time. (Given enough voltage, electricity can cross the gap to the ground, but if there's a fire you gotta do what you gotta do.) You then have to keep hopping with your feet together or shuffle-step away due the the potential energy difference in the ground.
A problem is that many people who use a bus are not physically capable of a leap. They may be elderly, disabled, pregnant or simply be very small children.
- jhgb 5y ago> Given enough voltage, electricity can cross the gap to the ground Doesn't smoke make air more conductive?
- dharmab 5y agoYes but if the smoke is that thick you're about to pass out from smoke inhalation anyway
- jhgb 5y agoI'm pretty sure that even almost invisible smoke can already cause significant trouble in this respect. Partly because particles of smoke themselves can be electrostatically attracted to objects under significant voltage, so even low density smoke can concentrate itself in problematic places. See Figure 3. and the text above it in https://www.osti.gov/servlets/purl/3313 https://www.osti.gov/servlets/purl/3313 .
- bagels 5y agoThis is the recommended procedure for exiting some stricken Formula 1 cars due to their hybrid powertrains.
- dharmab 5y agoMany race series will require internal and external buttons to cut the battery as well: https://youtu.be/qM_iXuuwC9M?t=687 https://youtu.be/qM_iXuuwC9M?t=687