Flexible cords immersed in or exposed to water in a fountain shall be _____.
a) extra-hard usage type
b) listed with a W suffix
c) encased in not less than 2 in. of concrete
d) a and b
See answer and applicable Code reference
The correct answer is: d) a and b
Article 680 covers the installation requirements for swimming pools, fountains and similar installations. As noted in 680.56(B), "Flexible cord immersed in or exposed to water shall be of a type for extra-hard usage, as designated in Table 400.4, and shall be a listed type with a "W" suffix."