| 摘要 |
<p>An electric power switch including a contact zone and an arc extinction zone with the arc extinction zone around the contact zone, the contact zone including at least two contacts separable to provide a multiplicity of contact gaps around the contact zone and the arc extinction zone including arc extinction elements spaced around the contact zone and extending outwardly therefrom, the spaced arc extinction elements cooperate with the contact gaps to receive arcs arising at the contact gaps on the separation of the contacts to break a current flowing, in operation, through the closed contacts. A conductor of the switch may extend at least part of the way around the arc extinction zone.</p> |
