ANSI Device Numbers. From Wikipedia, the free encyclopedia. The ANSI Standard Device Numbers[1] [2] [3] denote what features a protective device supports (such as a. relay or circuit breaker). These types of devices protect electrical systems and components from damage when. an unwanted event occurs, such as an electrical fault.
The piston ring speed on the average chainsaw travels 2,500 surface feet per minute. A chain slides across the surface of the sawbar rail at around 5000 feet per minute. The chain is moving at 55 to 60 m.p.h. or a mile per minute (88 feet per second).
From Wiki A shot, one of the forged lengths of chain joined by shackles to form an anchor cable, was usually 15 fathoms long . A shot is @90 ft of chain. On deck means the amount of chain that is showing from the anchor locker on the deck, so they know how much is out, and how much is left.