Question: what is the difference between gfci and gfpe?
Answer: There are two types of ground-fault protection required by the NEC: 1) the GFCI and 2) the GFPE. A GFCI is intended to protect persons against shock and electrocution. As implied by its name, the GFPE protects equipment from damaging line-to-ground faults and is not intended for the protection of people.