In the absence of standards Was determined to use the equipment and safety systems and installation engineering principle and must be approved by the department.
In cases where there are no standards have been set, use the equipment and safety systems and installation of engineering principles, and must receive approval from the Department of plant.
In the case where there is no standard and the system has been configured to use the device, security, and the installation in accordance with engineering and must be approved by the Department of the factory