By fusing at the battery you protect both the radio and the wiring in case of a radio failure or a short to the wiring. By fusing both positive and negative you protect the radio if another high current circuit opens for some reason and finds its way back to the battery through the radio and wiring.?
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On Apr 28, 2020, at 11:18 PM, James Stafford <aj5bs@...> wrote:
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What do you mean by "longer period of time?"
Remember, the purpose of the fuses is only to protect the radio in case of a short, thus preventing a fire. In the case that you develop a short without the fuses, you give up that protection and in the event of a fire, you may or may not be able to reach the mechanical connection point to disconnect the radio.
James B Stafford
On Tuesday, April 28, 2020, 10:08:41 PM CDT, vaclav_sal via groups.io <vaclav_sal@...> wrote:
At some point it was discussed and recommended to fuse BOTH positive and negative leads, especially in mobile installation.
In my opinion unnecessary and to be truthful? I woudl NOT use fuses at all - assuming there is some mechanical way to disconnect? the supply from source. Again I am referring to mobile? use.
But some will argue that if the rig is connected directly to car battery it has to be fused.
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If one wants to be really technical about the powering issue of 857 - the "standard / factory " provided connector IS NOT reliable when FULLY loaded for longer period of time. Period.
Fortunately there is a "solution" called "brown wire "? HI HI
I have been using plain PC Molex (4 wire) connector , they are not that hard to find then the original connector,? and even when wires are concreted in parallel the connector gets pretty warm after prolonged usage .
