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).
Standard manual metal saws can cut cable very fast, however armored cable like ABUS Steel-O-Flex series 1000 or 1050 models are a good compromise. A properly hardened* quality security chain, depending on the link gauge, will be either very difficult or impossible to cut with bolt-cutters or manual tools. * many Made in China brands are not consistent in hardening and steel quality.