Like most, the NEC only governs new installation, not maintenance. By adding an anode to your pool plumbing installation, and by connecting the anode to the bonding grid, you effectively make the rest of your pool equipment the cathode in a galvanic couple. Bonding is the process of connecting all metal components together with a low-resistance conductor. A new tin plated copper lay-in lug was installed and the broken bonding wire was spliced together using a copper C tap and a crimping tool. What components are in the bonding grid? If they pass, they will automatically reset. Builder Blunders: Lack of Equipment Bonding. Within that blog, we briefly mentioned pool bonding and grounding. Then, when you touch a doorknob or another piece of metal, the charge jumps off you and through the air.
"This is my mission for the rest of my life. Therefore, pool contractors and electricians will bond your pool pumps, heaters, pool cage, lights, screen enclosure, and ALL metal surrounding your pool (i. e. door/window frames). This bonding grid connects all metal components in the pool area with bare copper wire. These products are all ETL Certified to UL and CSA standards. Unlike grounding, bonding isn't a very common electrical task. Place bonding plate on post, aligning hex details. One issue should be put to rest immediately, lest it cause distraction: It was not a high-voltage light that caused the death of Chris Sloan's son. A task such as changing a motor may seem simple; however, grounding and bonding wires must be installed correctly, with the right connectors. Every pool needs to be fun, every pool needs to be well built and every pool needs to be safe. 2 (the Wiring Rules) where electrical equipment situated in a classified zone is required to be earthed, all extraneous conductive parts in Zones 0, 1 and 2 shall be connected together by equipotential bonding conductors and connected to the protective earthing conductor of the electrical equipment. This allows the electricity to dissipate, preventing electrical shocks and keeping you and your loved ones safe. 26(C) the Bonding Device shall: • Consist of at least 9 sq. Question of illumination. Pool bonding lug home depot. Anything metal within three feet from the inside wall of the pool must be bonded to the same #8 wire.
If metallic low voltage lights are within the zones, they may also mean the pool must be bonded. A bonded pool balances the electrical pressure and keeps all currents flowing outward into a bonding wire or grid where they are safely dispersed. If you have any further questions on bonding or grounding of pool systems, comment below! How to attach bonding lug to pool 8. The first thing you need to do is contact your pool guy or a certified electrician to troubleshoot the problem. Set the multimeter to test for continuity.
D., president of Austin-based engineering and architectural firm Hamilton and Associates, and the Association of Pool & Spa Professionals' principal representative on the committee that writes the NEC's pool and spa section. An electrician bonds pool equipment by connecting it all together with conductive wire also known as a bonding wire when it comes to pools. Econ Union Water Bond. When a short occurs, this path could be through a piece of bare metal, wood framing, or a person touching a piece of equipment. How to attach #8 bonding wire to IG steel pool wall panels. This is done by creating a "bonding grid. Please feel free to share your thoughts or questions in the comments section.
In fact, some industry statistics show nicheless lighting slowly gaining on traditional wet niche pool lighting. Velvet furniture, an infinity pool and exposed metal supports take a rural three-gabled home beyond mere classicFull Story. Learn more about the inline anode and water bond. In a similar vein, while some lights may be low-voltage, their transformers hold high- and. Just as important, an improperly wired low-voltage system still can function as a path for stray current generated from another source: As it seeks to complete the circuit, the current could travel through the grounding wire, for instance, to water. I spliced some #8 copper wire onto the existing #8 bonding wire to extend the bond to the pool control support posts. So even though we have everything bonded, we still need to ensure it is all grounded. Bonding lugs for above ground pool. This leads some to believe that the true incidence of deaths caused by faulty electrical systems is likely lower. But some professionals don't know the difference between these processes.
Touch one lead to the ground wire near the green ground screw and the other to the motor frame across from the ground connection. As discussed, this will provide cathodic protection to your pool equipment, which results in increased rust resistance. Without proper bonding and grounding, you and other pool users run the risk of electric shock when using your pool or equipment. What is Pool Bonding. In some cases, seemingly minor steps are overlooked during the installation or replacement of constituents in an electrical system. Hamilton relates the story of a California inspector who found two installations where the.
A swimming pool should have a bonding grid — not having one is a serious safety concern. Fortunately there are options available that can make this an easy and cost-effective addition to pool construction. To prevent humans from becoming a wire shunting two different electrical potentials, a bonding grid is used to keep everything in and around a pool at the same electrical potential. "It takes 120 volts and turns it into 1, 200, " Brotz says. Do not substitute an "earth ground" from a grounding rod or bonding connection. 21 Do not connect power wires until the ground wire installation is completed. "You can have connecting devices that are listed for use underground that won't last a month in a pool environment. The stainless steel coil is hidden inside the union and does not impede water flow.
7 of the Wiring Rules. By code, all electrical pool devices, lights, pumps, control boxes etc., must be tied into (or bonded to) a common grid that surrounds the pool. In the case of pool equipment, though, the charge can also jump through the water or even through people as it seeks the ground. I basically rigged some Unistrut and strut fittings onto the existing concrete bolts and strut and that made the pool controls more secure. According to the NEC the number one purpose of the code is "the practical safeguarding of persons and property from hazards arising from the use of electricity. But if a wire is broken or frayed, or if a piece of equipment malfunctions, it can create a short circuit (or fault) that makes electricity flow down a path it isn't supposed to. Each component of your pool system that contains metal should be bonded directly to the casing of the machine. "Instead of knocking it down by a factor of 10, the transformer is now a step-up transformer. Bonding lug or wire missing. Unfortunately, there are stories in the news every year about the tragic dangers related to electricity in a pool area.
Bonding is the process by which the electrical and metallic components of the pool are joined together with a wire to form a non-resistive path between the components. Grounding protects people against a possible fault in the system by electrically attaching equipment to earth ground, which is at the lowest "electrical potential, " referred to as 0 Volt potential. The number one concern of any professional installer has to be the safety of all pool swimmers. How does bonding and earthing work together in a pool?
I pulled the extra wire out of the lug and made a splice using a copper crimp and a copper split bolt connector. After the ground connection has been made, the power connections can be completed. Together, both reduce the risk of fatal shock. For this reason, they believe code should not ban high-voltage lights. If the pump is bonded and grounded properly, that minimizes the hazard because the breaker will trip; however, this safeguard should be done observed.
If you were to take a multimeter and measure the conductivity between all different components, they would, in theory at least, all have no electrical resistance in between them. In addition, all metal within 5 feet of the inside of the pool wall must be bonded with the equipment to form the equipotential bonding grid. This is a predictable electromechanical process, and one that can actually be used to help protect your pool equipment. In Hamilton's observations inspecting pool and spa electrical systems, the light itself was rarely the problem. In addition, low-voltage lights require a transformer or power supply listed for that application. The second amendment now requires that the equipotential bond point be: - provided with adequate space and always accessible; - protected against mechanical damage; - protected against corrosion; and, - made using a suitable device in accordance with the manufacturer's specification that provides adequate electrical conductivity. The tragedy made international headlines, even garnering a viral social-media campaign in which people — including some celebrities — posed with a self-portrait Calder had drawn, labeled with his nickname, "Mr. But, as you can imagine, electrical safety is very important whenever water is involved.
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