SF6: The Perfect Gas for the Columbus Utilities Industry


Delille Oxygen Company seen as a prime provider of dielectric gases – also commonly referred to as insulating gases – for the Columbus electrical utilities industry. These gases are used routinely to either avert or rapidly extinguish electrical discharges, for which their dielectric properties render them most suitable. The most prominent of these gases and the one most purchased from us is sulfur hexafluoride (SF6).

Utilities work with SF6 to electrically insulate high-voltage transformers, sulfur hexafluoride circuit breakers, switchgear, and other comparable types of hardware.

Where SF6 circuit breakers are involved, they’re pretty much singularly taking the place of oil-filled circuit breakers (OCBs), which, due to the fear of their being polluted with now-banned, environmentally toxic polychlorinated biphenyls (PCBs), are no longer favored.

The extensive use of SF6 under pressure in gas-insulated switchgear is due to its exhibiting a dielectric strength markedly higher than air or dry nitrogen (the latter another gas in broad use by our utilities industry customers).

One major perk of SF6’s high electronegativity and density is that it allows the utilities industry to cut the size of electrical gear. This, in turn, permits placing such gear in more-practicable indoor environments, as opposed to air-insulating it outdoors. Gas-insulated hardware situated indoors is, of course, less subject to the damages inflicted by climate and pollution. Besides that, a controlled environment also helps ensure greater system dependability and longevity.

If for whatever reason you’re not yet acquainted with SF6 and would like to understand more about its advantages in utilities industry application, get hold of Delille Oxygen Company, your Columbus PurityPlus® Partner, today.