FIELD: electrical engineering.
SUBSTANCE: invention relates to an electrical device for interrupting electric current, comprising electric arc extinguishing chamber (20) for electric arc quenching, provided on electric contacts disconnection section, provided with extinguishing gases outlet nozzle (24), and system (26) for filtering extinguishing gases located at the outlet of the outlet nozzle and comprising filter (28) and diffuser (30) of gases, which comprises superimposed central layer and two outer layers made on each side of said central layer, wherein central layer is provided with first through holes, each outer layer is provided with second through holes, said first holes are shifted relative to data of second holes so that each of second holes is detected on solid part of central layer without any whichsoever first hole.
EFFECT: technical result is provision of more effective protection against risk of electric arc electric current loopback to filter.
9 cl, 7 dwg
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| DEVICE FOR EXTINGUISHING ELECTRIC ARC | 0 |
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SU1005672A3 |
