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Zone 1 classified location An area where ignitable concentrations of flammable gases, vapors or liquids are likely to exist under normal operating conditions. As a guide for Zone 1, this can be defined as 10–1000 hours per year or 0.1–10% of the time. [3] Class I, Division 2 or Zone 2 classified locations
Shutdown valve. A shutdown valve (also referred to as SDV or emergency shutdown valve, ESV, ESD, or ESDV; or safety shutoff valve) is an actuated valve designed to stop the flow of a hazardous fluid upon the detection of a dangerous event. This provides protection against possible harm to people, equipment or the environment.
The ESV is derived from the 1971 text edition of the Revised Standard Version. [18] [36] [47] ESV translation committee member Wayne Grudem claims that approximately eight percent (or about 60,000 words) of the 1971 RSV text being used for the ESV was revised as of first publication in 2001. Grudem states that the committee removed "every trace ...
For instance, there are similarities between 1 Peter and Peter's speeches in the Biblical book of Acts, [14] allusions to several historical sayings of Jesus indicative of eyewitness testimony (e.g., compare Luke 12:35 with 1 Peter 1:13, Matthew 5:16 with 1 Peter 2:12, and Matthew 5:10 with 1 Peter 3:14), [15] and early attestation of Peter's ...
In electric power systems and industrial automation, ANSI Device Numbers can be used to identify equipment and devices in a system such as relays, circuit breakers, or instruments. The device numbers are enumerated in ANSI / IEEE Standard C37.2 Standard for Electrical Power System Device Function Numbers, Acronyms, and Contact Designations .
The 1984 to 1987 turbo models featured a Garrett T3 turbocharger with a 7.8:1 compression ratio, whereas 1988 to 1989 models featured a low inertia T25 turbocharger with an increased 8.3:1 compression ratio and slightly more power — 165 hp (123 kW) naturally aspirated and 205 hp (153 kW) turbocharged.
Peter Sinks is a natural sinkhole in northern Utah that is one of the coldest places in the contiguous United States . Peter Sinks is located 8,100 feet (2,500 m) above sea level, in the Bear River Mountains about 20 mi (32 km) east of Logan, within the Wasatch-Cache National Forest. Due to temperature inversions that trap cold nighttime air ...
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