Industrial switchboards consist of usually metal enclosures in which electrical control equipment and components are installed. These equipment and internal parts can be different depending on the application of the electrical panel. Another application of electrical panels is to protect people against electric shock. As the same time, it protects its internal equipment  from the effects of environmental factors. The switchboard places components such as phase control, contactor and load control, fuses and teminal etc. in insulted rows and in a regular manner so that they can be easilu controlled, replaced and repaired by the operator. In the meantime, some switchboards may need to have special features such as proper ventilation to reduce temperature, protect against radio frequancy interference, or the ability to protect against electrostatic discharge.