Before beginning the installation of your hot tub, it is important to know what the National Electrical Code is. The National Electrical Code refers to an accepted code that applies to all 50 U.S. states.
It provides a guideline for electric design and installation that ensures safety. Licensed electricians know both the National Electrical Code and local coding laws.
It can also be helpful to keep a few code requirements in mind when it comes to wiring a hot tub.
For one, always turn off the power supply before beginning installation. Then, plan the location of the hot tub panel.
When choosing the location of your hot tub, always consider where you will place the spa panel. The spa panel should be a minimum of five feet and a maximum of 10 feet away from the spa. Within a foot of the hot tub panel, you will need to dig a trench and install the conduit. Local codes prevent you from digging near power or communication lines.
You are also not allowed to install the wiring directly beneath the hot tub itself. You must also avoid placing wiring or the hot tub directly under any power lines.
Going with a full-size hot tub will usually require that you hardwire the spa into the ground fault circuit interrupter.
You should also never use extension cords when installing the wiring for your hot tub.