How to Clean Fuse Holder Corrosion | eHow Fuses are used in electrical circuits for over-current protection. If the fuses are placed in wet or humid environments they can corrode at the metal connection points. Corroded connections can cause over heating and failure of the holder. A safeguard is to check fuses and corresponding holders Ask Away! with Jeff Smith: Clean or Replace Corroded Fuse Sep 29, 2017Multiply this over 50 years and you have a fuse box full of rusty connections. The GM fuse boxes bolt together at the firewall with the power feed coming from the battery/alternator connection. This live battery wire enters the fuse box with something as simple as a female blade connector over a male terminal. Once the corrosion starts Water Damage and Corrosion in Your Electrical Panel Jan 26, 2017What You Should Know About Water Damage and Corrosion in Your Electrical Panel. Written by Chadwick Electric Services Inc 1 on January 26, 2017ed in Safety. When you notice water dripping out of your electrical panel box, your first reaction is to panic.