Industrial occupancy’s differ from residential and commercial in that they are designed to create industry. And example of this would be a concrete plant. The people that work at a concrete plant are building products for an industry, rather than transacting business by allowing customers to come in and purchase products. Industrial occupancy’s tend to have large amounts of machinery and equipment that are the prime reasons for the electrical system.
there may also be offices and kitchens inside of an industrial building however that is not the main use of the structure, rather it is a separate part of the structure that helps to support the main directive of creating products. Most industrial complexes are heavily engineered so that the electrical system has enough power available for all of the machinery needed.