Rated test loads are to be connected to the output circuits of the product. The test loads are to be electric locking mechanisms, remote indicators, relays, or the equivalent intended for connection to the product. If an equivalent load is used for an intended inductive load, a power factor of 60 percent is to be used. The rated loads are to be established with the product initially connected to a source of supply as specified in 26.3.1, after which the voltage is to be increased to 115 percent of the initial value