Grounding of Storage Tanks

[coloradog1]

Can someone explain why fiberglass storage tanks are grounded?

 

[dpc]

Static electricity.

http://www.fiberglasstankandpipe.com/handlingpetrol.htm

 

[coloradog1]

If tank is used for storing a non-flammable material is grounding still necessary?

 

[Compositepro]

Only conductive objects can be grounded and fiberglass composite is generally non-conductive. All conductive objects in a plant should be grounded, including piping and tanks. Fiberglass is not usually used for flammable materials because it is not fire resistant and it also is not conductive.