middriveebike said:
Sometime the bike is chassis grounded.
It makes it much for easier to short on the positive wire than the -ve one.
So it makes sense to fuse the positive wire on the battery.
-this is for clearing up any misconceptions you may have
I've not seen every e-bike ever manufactured (they've been made since the 1880's thereabouts)
I've yet to see an e-bike "grounded"
caveat: I've only owned -or- seen/worked on four manufactured e-bikes so far.
All others I've built for myself (about six so far)
It makes no difference if you installed the fuse on the batterys' positive or negative terminal.
I understand not everyone on this board is an expert in electronics so I'll keep this discussion as simple as possible. (i r x purt)
All electrical circuits no matter their complexity can basically be broken down to a power source (B) that feeds it's power into a load (fig 1)
The load be simply be described as a variable reactance consisting of resistance (R), capacitance (C) and inductance (L)
The current flow is no different between the positive or negative "terminal" of the power source. The current flow of any complete circuit is what it is and goes from one terminal to the other, as determined by the load.
-whether a fuse in inserted on the power sources positive or negative* terminals' makes -0- difference. (fuse inserted before the 'ground' connection (little triangle at the bottom of Fig 2 and 3))
If the current goes above the fuses' rating, the fuse will stop the flow of current. (although not instantly, which is sometimes a porblum)
