| Re: Upgrade my headlights |
Subject: Re: Upgrade my headlights by CentralCoaster on 2008/9/16 23:23:17 The fuse is the weakest link in the circuit on purpose. Hypothetically speaking, lets say the wiring can handle 18 amps, the fuse is 15 amps, and the lights draw 11 amps. If you put 19 amps worth of lighting on that circuit, it'll blow the fuse. So you get wise and put a 20A fuse in. Now you've made your wiring the weakest link in the system, not the fuse. Turning your lights on is going to melt the circuit wiring and potentially set the car on fire. It's hypothetical, in reality the fuses have more margin of safety than that. But I'm trying to show why you should never ever upsize a fuse. GM sized the fuses to protect the wiring harness. Too large a fuse defeats the purpose of the fuse entirely. |
