If you are vision-impaired or have some other disability under the Americans with Disabilities Act or a similar law, and you wish to discuss potential accommodations related to shopping or ordering on or using the benefits of our website, please contact Alliant Energy at 1-800-ALLIANT (800-255-4268).
Emergency? Call 1-800-ALLIANT (800-255-4268)

Corrugated Stainless Steel Tubing (CSST)

CSST If your home or business was built after 1990 or you’ve had work done to your natural gas system, Corrugated Stainless Steel Tubing (CST) may have been installed.

What is CSST?
CSST is a flexible stainless steel pipe and has a yellow or black plastic coating. CSST does not connect directly to appliances, but instead it runs through a home or business – sometimes under floors, along sidewalls and in the attic.

If lightning strikes a structure containing CSST, there is a risk it can travel along the structure’s natural gas piping system and cause a leak or, in some cases, a fire.

CSST gas piping systems shall be bonded to the electrical service grounding electrode system or, where provided, lightning protection ground electrode system. The bonding jumper shall not be smaller than 6 AWG copper wire or equivalent and no longer than 75 feet. The CSST gas piping shall not be used as a ground conductor or electrode.

Alliant Energy does not provide inspection service for CSST installations.

What should I do if I find CSST?
If you find CSST after inspecting your home or business, Alliant Energy recommends that you contact a licensed electrician to make sure it’s bonded and grounded properly.

If you are unsure whether your building contains CSST, contact a building inspector to obtain a professional inspection.

For more information:
Refer to the National Fire Protection Association 54: National Fuel Gas Code, Section 7.13 Electrical bonding and grounding. A good web resource can be found at http://www.csstsafety.com/
If you are vision-impaired or have some other disability under the Americans with Disabilities Act or a similar law, and you wish to discuss potential accommodations related to shopping or ordering on or using the benefits of our website, please contact Alliant Energy at 1-800-ALLIANT (800-255-4268).