Q. When bonding a swimming pool shell, which of the following shall be considered conductive materials due to water permeability and porosity?

  1. poured concrete
  2. pneumatically applied or sprayed concrete
  3. concrete block with a painted coating
  4. concrete block with a plastered coating
  5. all of the above

Answer: E

When bonding a swimming pool shell, the Code considers all of the above mentioned construction products to be conductive materials due to water permeability and porosity [680.26(B)(1)].

Owen is the owner and president of National Code Seminars and the holder of master electrician certifications in 46 states. He can be reached at necexpert@aol.com.