Do not imagine having a pool installed without the proper permits being applied for and issued by your local government. Most jurisdictions require a minimum of a Zoning Permit in addition to an Electrical Permit and many communities may require a Building Permit as well. There is not a greater nightmare in the world than spending $50,000 on a pool and patio and then having the local government tell you that you have to fill it in because pools are not zoned in your area or the proper inspections weren't done. Save yourself a giant headache and spend the money to get all of that cleared up ahead of time. Any reputable pool contractor will explain the zoning and permitting process to you ahead of time. If any contractor associated with an in-ground pool installation doesn't mention permits and inspections…run from them as fast as you can. For safety reasons demand inspections and permits throughout the process. Okay, you have your permits how does my electric get installed?
Article 680.26 of the National Electric Code details the bonding requirements for permanently installed swimming pools in order to “eliminate voltage gradients in the pool area as prescribed.” Bonding the metallic parts in and around the pool area prevents differences of potential from developing in the event of an electrical equipment fault and reduces the possibility of electric shock. The area created by bonding the metallic parts together is known as an equipotential
Any metallic equipment within 12′ of the inside edge of the pool or is equipment that is used to service the needs of the pool must be bonded. Simply put you are interlocking all of the metal components together that form the pool shell underground to the metal components of the equipment serving the pool. This includes metal fences, diving boards, steps, motors, or any other metal component in that 12′ range. These photos are pictures of the bonding loop between a pump motor and a pool heat pump condensing unit. This plane is absolutely essential to maintain an equipotential electrical plane. NEVER
disconnect one of these wires from your equipment. If you have pool equipment that is missing these wires call immediately as this could be a serious risk to people's lives.