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release projects exhibition / overseas exhibitions domestic exhibitions canton fair news / cccme news member news statistics & analysis upcoming events about cccme profile branches leadership working committees contact menu overseas economic and trade zones products products members news sign in services for...
release projects exhibition / overseas exhibitions domestic exhibitions canton fair news / cccme news member news statistics & analysis upcoming events about cccme profile branches leadership working committees contact menu overseas economic and trade zones products products members news sign in services for...
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and optical fibers spring manufacturing machines machines for sheet metal manufacturing and processing tube machinery various machines and accessories used machinery and equipment continuous casting machines plants back plants automation systems, electrical systems treatment equipment and furnaces pneumatics...
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显示更多显示收起 crowbar a crowbar is a method used to limit the maximum output voltage of a power supply. in the event of overvoltage the output is short circuited by an electronic switch, (a thyristor or suppressor diode, for example), which protects connected consumers from damage. crowbar circuits are not...
depend on the correct function of a device. components responsible for functional safety must meet the requirements of iec (vde ). this standard provides general guidelines for the prevention and control of outages in devices. it sets organisational and technical requirements for the development and...