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JB 5863-1991 AC drive steel rope belt conveyor electronic control
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This standard specifies the general requirements for the electrical control equipment of AC asynchronous motor driven steel cord b
2024-09-26 category：Machinery Industry Standard (JB)+ View
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JB/T 5862-1991 Performance test procedure for surface feedwater heaters for steam turbines
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This standard specifies the performance test method of surface feedwater heaters to determine the following performance indicators
2024-09-26 category：Machinery Industry Standard (JB)+ View
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JB/T 5861-2002 Directional relays and power relays with two input excitation quantities
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This standard specifies the technical requirements, test methods, inspection rules, marking, labeling, instruction manual, packagi
2024-09-26 category：Machinery Industry Standard (JB)+ View
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JB/T 5860-1991 Rated parameters of relays and relay protection devices
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JB/T 5860-1991 Rated parameters of relays and relay protection devices JB/T5860-1991 standard download decompression password: www
2024-09-26 category：Machinery Industry Standard (JB)+ View
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JB/T 5849-1991 Impedance relays and devices
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JB/T 5849-1991 Impedance relays and devices JB/T5849-1991 standard download decompression password: www.bzxz.net
2024-09-26 category：Machinery Industry Standard (JB)+ View
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JB/T 5848-1991 Guidelines for thermal cycle load test methods
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This standard specifies the thermal cycle load test method for common rectifiers, common thyristors and their derivative devices.
2024-09-26 category：Machinery Industry Standard (JB)+ View
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JB/T 5847-1991 High temperature blocking test method guide
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This standard specifies the high temperature blocking test method for common rectifiers, common thyristors and their derivative de
2024-09-26 category：Machinery Industry Standard (JB)+ View
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JB/T 5846-1991 Guide to calculation of thyristor characteristic curves
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This standard provides the technical requirements, calculation formulas and methods for characteristic curves such as power consum
2024-09-26 category：Machinery Industry Standard (JB)+ View
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