The most widely used electrical high voltage porcelain knife switch, by definition, in the circuit isolation from its working principle and structure is relatively simple, but due to the high reliability requirements of the use of a large amount of work on the substationpower plant design, build and safe running. The main features of the knife without breaking the ability points, or only in the case of no load current circuit.
James supply the lamp holders, bulb holders, E27 lamp holder and GU10 lamp holder 30 years!
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