Mayer once remarked: People do seem surprised at how tall I really am. At 6'3, Josh Duhamel definitely has that whole tall, dark and handsome thing going. With a commanding voice and brash demeanor, Kimora Lee Simmons is impossible to ignore. Her 6 foot frame is just icing on the scary cake.
Types of Explosion Protection for Electrical Equipments. Different construction techniques used for electrical equipments working in marine hazardous areas to prevent explosion. Explosion protection equipments are identified by the symbol Ex followed by the letter indicating the type of protection. Flameproof enclosure (Exd)
The objective of the standards is to minimize such potential hazards by specifying design characteristics of safety in use of electrical equipment and systems. OSHA's electrical standards were carefully developed to cover only those parts of any electrical system that an employee would normally use or contact. The exposed and/or operating elements of an electrical installation-lighting equipment, motors, machines, appliances, switches, controls, enclosures, etc. - must be so constructed and installed as to minimize electrical dangers to people in any workplace.