Warning: Lockout and disconnect the main power before tightening the main supply lugs in order to avoid the hazard of electrical shock, which could result in serious personal injury or death.
Tighten the main supply lugs every 24 hours during the first week of operation.
Caution: When checking the element terminal connections, use a wrench on both nuts to avoid twisting the terminal stud and damaging the equipment.
If all elements have been operating normally and each element bank draws its rated current or amperage, where no further element tests are necessary.
Source: Cleaver Brooks