All layers of the skin are burned. These burns can be fatal if not under a doctor's care. Burns of this nature will need to be covered with dressings to prevent infection. Thermal and Flash burns are also very serious. Remove the clothing from the person right away and apply cold water towels immediately and seek medical attention.
Electrical burns can cause serious damage to internal organs.
Even though the person says they feel ok, take them to the hospital anyway. Make sure that they are not in contact still with the electrical source before helping them. If you have an older child that is leaving on vacation with another family for the weekend, send your child with sunblock and make sure they understand how important it is to use it. If the sunblock washes off, have them re-apply it. You can also purchase waterproof sunblock, but I would recommend applying it again after one hour to be on the safe side.