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Insulation system. The electrical insulation system for wires used in generators, electric motors, transformers, and other wire-wound electrical components is divided into different classes by temperature and temperature rise. The electrical insulation system is sometimes referred to as insulation class or thermal classification.
v. t. e. In finance, a Class B share or Class C share is a designation for a share class of a common or preferred stock that typically has strengthened voting rights or other benefits compared to a Class A share that may have been created. [1] The equity structure, or how many types of shares are offered, is determined by the corporate charter.
B shares are a special class of shares on the New York Stock Exchange. Comparison with A shares [ edit ] B shares carry a back-end load , whereas A shares carry a front-end load .
In the USSR, per GOST 2582-72 with class N insulation, the maximum temperatures allowed for DC motors were 160 °C for the armature, 180 °C for the stator, and 105 °C for the collector. The one-hour rating is typically about 10% higher than the continuous rating and is limited by the temperature rise in the motor.
Vapour-compression refrigeration or vapor-compression refrigeration system ( VCRS ), [1] in which the refrigerant undergoes phase changes, is one of the many refrigeration cycles and is the most widely used method for air conditioning of buildings and automobiles. It is also used in domestic and commercial refrigerators, large-scale warehouses ...
Thermoreceptor. A thermoreceptor is a non-specialised sense receptor, or more accurately the receptive portion of a sensory neuron, that codes absolute and relative changes in temperature, primarily within the innocuous range. In the mammalian peripheral nervous system, warmth receptors are thought to be unmyelinated C-fibres (low conduction ...
Class 350 Rating. This rating is the requirement for protecting paper documents. Above 350 °F (176.7 °C) paper is distorted by the heat and information is lost. A Class 350-4 Hour vault must keep the temperature below 350 °F. for at least four hours, with temperatures up to 2,000 °F. (1,093.3 °C) outside the vault.
Nb 97.8 B 2.2 – High-temperature. Can be used for brazing tungsten. 2.2: Nb 97.8: Nb 80 Ti 20 – High-temperature. Can be used for brazing tungsten. 20: Nb 80: Pt 85 W 11 B 4 – High-temperature. Joint remelt temperature 2200 °C. Can be used for brazing tungsten. 85: 11: 4: W 75 Os 25 – Very-high-temperature. Requires very intense ...