Introduction
When preparing for emergencies, it’s easy to overlook the humble fuse, but it plays a crucial role in protecting your electrical systems. Fuses are designed to break the circuit when too much current flows, preventing damage from power surges, brownouts, and overloads. Without them, your devices and appliances could suffer irreparable damage. This guide will walk you through identifying and stocking up on the right fuses for your home, vehicles, and RVs.
Identifying Fuses in Your Home
Start by checking your home’s service entry box. Older homes might have screw-in fuses, while modern panels typically use cartridge fuses behind Bakelite handles. To identify the type of fuses you need, open your service panel and look for the fuse blocks. If you see screw-in fuses, you’ll need to stock up on those. If you see cartridge fuses, note their size and type. You can find this information in your home’s electrical manual or by consulting a professional electrician.
Next, inspect your devices and appliances for internal fuses near power inputs. These fuses are often labeled with part numbers, such as F1013. Make a list of these part numbers and the corresponding devices. This way, you’ll know exactly which fuses to replace if they blow during an emergency.
High-Power Devices and Fuses
High-power devices like inverters, generators, and battery chargers can have multiple fuses that might blow sequentially during overloads. These devices often have inline fuses that protect the circuit from damage. To ensure you have the right fuses, check the manual or label on the device. Note the fuse ratings, which are typically listed in amps. For example, a 20-amp fuse will handle up to 20 amps of current before it blows. Stock up on a variety of fuse sizes to cover different devices.
Fuses in Vehicles and RVs
Vehicles and RVs also rely on fuses to protect their electrical systems. Check the fuse panel in your vehicle or RV, which is usually located near the steering column or under the dashboard. Note the fuse sizes and types, as they can vary between different makes and models. Some vehicles and RVs use blade fuses, while others use glass fuses. You can find a list of fuse sizes and types in the vehicle’s manual or online.
Battery packs in vehicles and RVs can also contain internal fuses. These fuses can be temporarily repaired with soldering if they blow. However, it’s best to replace them with new fuses to ensure proper protection. Always carry a spare set of fuses for your vehicle and RV in your emergency kit.
Tracing Inline Fuses
Inline fuses are critical for protecting AC power, generators, and battery systems. To trace inline fuses, start by identifying the power source and the devices connected to it. Use a multimeter to check the current flowing through the circuit. If the current exceeds the fuse rating, the fuse will blow. To prevent this, replace the fuse with one that can handle the current without blowing.
For example, if you have a 12-volt battery connected to a 10-amp fuse, and you’re drawing 15 amps from the circuit, the fuse will blow. Replace the 10-amp fuse with a 20-amp fuse to prevent this from happening. Always trace the wiring to ensure you’re replacing the correct fuse.
Conclusion
Fuses are a crucial but often overlooked component of your emergency preparedness kit. By identifying and stocking up on the right fuses for your home, vehicles, and RVs, you can protect your electrical systems from damage during power disruptions. Remember to check your service entry box, inspect your devices and appliances, and trace inline fuses to ensure you have the right fuses for your needs. With the right fuses, you can keep your critical electronics running during power outages and other emergencies.