Knowing the difference between indoor and outdoor electrical wires is essential to providing the quality service your clients expect. Not only does it ensure a proper level of power, but it also reduces the potential for fire hazards. Ensure you’re ready for an upcoming project by considering the following and brushing up on the basics.

What Are the Differences Between Indoor & Outdoor Electrical Wires?

Insulation

Since outdoor wires experience temperature fluctuations and regular precipitation, they tend to feature a more durable type of insulation. This prevents moisture accumulation and ensures that the wire remains dry. Unless there’s a leak somewhere within the structure, indoor wires have a lower chance of contacting water. As such, they feature a thinner type of insulation around the wire that prevents direct contact with surrounding materials.

Amperage

Amperage measures the amount of power that an electrical wire provides. The higher the amperage, the greater the electrical supply. Using the wrong one could overload the system and cause the breaker to blow. Since outdoor equipment tends to require more power than a vacuum or kitchen appliance, these wires are made to transfer a higher amperage than their indoor counterparts. This ensures a proper amount of electricity without endangering the home.

Gauge

Gauge is the measurement of the wires within the cord. Those with a sizeable diameter have a greater current capacity than smaller ones. Since outdoor wires average 150 feet or longer, they’re slightly thicker than indoor wires that are only 25 feet in length. This allows them to provide the necessary power without overcharging the wire and damaging the cord.   

If you’re about to undertake an electrical rewiring project, reach out to Husker Electric Supply in Lincoln, NE. They have been in the business for more than 40 years and maintain one of the largest inventories in the region. They stock top-of-the-line brand names, including Eaton and Cutler-Hammer, and feature electrical wires, baseboard heaters, and light fixtures at wholesale prices. They’re committed to quality customer service and will answer any questions that you may have. Call (402) 467-4624 to request an estimate or visit their website for more information.