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)
This is why fuses are increasingly being replaced by automatic circuit breakers. What about residual current? An electrical system is therefore protected by an automatic circuit breaker against short circuits and overloads, but not against residual current (earth leakage). Therefore, in order to protect people against electrocution and to prevent fire as a result of current leakage, there is yet another type of circuit breaker.