SF6: The Perfect Gas for the Atlanta, GA Utilities Industry


Sidney Lee Medical & Scientific Gases seen as a significant producer of dielectric gases – also known as insulating gases – for the Atlanta, GA electrical utilities industry. These gases are used most often to either avert or quickly tamp down electrical discharges, for which their dielectric qualities render them most suitable. The most notable of these gases and the one most sought from us is sulfur hexafluoride (SF6).

Utilities use SF6 to electrically insulate high-voltage transformers, sulfur hexafluoride circuit breakers, switchgear, and other such hardware.

In the matter of SF6 circuit breakers, they’re pretty much replacing oil-filled circuit breakers (OCBs), which, given the fear of their harboring now-banned, environmentally toxic polychlorinated biphenyls (PCBs), have fallen out of favor.

The predominant use of SF6 under pressure in gas-insulated switchgear is due to its manifesting a dielectric strength considerably higher than air or dry nitrogen (the latter another gas used almost universally by our utilities industry customers).

One very real reward of SF6’s high electronegativity and density is that it allows the utilities industry to reduce the size of electrical gear. This, in turn, permits locating such gear in more-practicable indoor environments, as opposed to air-insulating it outdoors. Gas-insulated gear placed indoors is, of course, less likely to suffer the damages inflicted by climate and pollution. Besides that, a controlled environment also promote greater system reliability and longevity.

If for whatever reason you’re not yet acquainted with SF6 and would like to understand more about its benefits in utilities industry application, get hold of Sidney Lee Medical & Scientific Gases, your Atlanta, GA PurityPlus® Partner, today.