Retractable Grounding Assembly® (RGA®) 750
Lightning Protection for Floating Roof Storage Tanks
The Retractable Ground Assembly (RGA 750) from Lightning Eliminators offers unparalleled lightning strike protection for floating roof tanks
.Engineered for durability and reliability, the RGA ensures a permanent, low-impedance bond that prevents fires triggered by lightning currents.
The ATEX approved and patented RGA substantially reduces the risk of tank fires by subduing sustained arcs during lightning events and other electrical phenomena. The RGA does this better than other traditional methods for bonding floating roofs because the retractable cable is always at the shortest possible length. The resultant low resistance and impedance results in too low of a voltage to sustain the arc, so no fire.
There are currently over 17,000 RGAs from Lightning Eliminators in service today protecting floating roof storage tanks from lightning strikes, keeping customers running through the storm.
Easy Retrofit and Inspection
The RGA is designed to retrofit easily onto any existing tank, even those in service. It is also easy to inspect and constructed to be low maintenance, providing a long-term solution for lightning protection.Key Features
- Pre-Tensioned Design: The RGA 750 is pre-tensioned at the factory, eliminating the need for on-site tensioning.
- Corrosion Resistance: The new aluminum cable, originally developed for marine use, significantly improves corrosion resistance and is highly resistant to hydrogen sulfide (H2S).
- Easy Installation: Installation takes only two hours on both new and existing tanks.
- Effective and Durable: The RGA provides a reliable, low-impedance bond that prevents fires triggered by lightning currents. It requires virtually no maintenance compared to traditional shunts.
- Standards Conformant: The RGA conforms to both API 545 and NFPA 780 recommendations and meets the API 545 requirements for a bypass conductor.
Why Choose RGA for Lightning Protection for Floating Roof Tanks?
The patented RGA from Lightning Eliminators is the original retractable grounding solution for floating roof storage tanks. Our high-quality, robust design ensures reliable lightning protection over the long-term for your tank farm, terminal, or refinery.In the United States, LEC has an exclusive patent for the RGA. If your facility is outside the U.S., we encourage you to contact us to learn what sets the original RGA from Lightning Eliminators apart from imitations.
The RGA ® is a Patented Product and a registered trademark of Lightning Eliminators & Consultants, Inc. in the United States of America.
The Petroleum Industry Choice for Storage Tank Lightning Protection
Figure 1 shows a conventional bypass conductor when the roof is high. Note how the conductor is randomly coiled upon itself, resulting in high impedance.
Note below how the conductor is as short as possible, thus providing the lowest possible impedance between the roof and shell. When a typical floating roof tank is 80% full, the impedance of the RGA is only 15% of that of a conventional bypass conductor.
Figure 2 shows the RGA when the roof is high.