| 摘要 |
<p>PURPOSE:To improve mechanical strength, keeping dielectric strength, by interposing an insulating ceramic section between an embedded metal and a resin section. CONSTITUTION:Three-phase penetrating conductors a, b and c are integrally calcinated with insulating ceramic sections 3 made of zirconia, etc. Metal fittings 4 of a spacer 1 are also calcinated with ceramic sections 5 such as zirconia, etc., on their outside circumference except the fitting hole surface. The ceramic sections 3 are arranged in the center section of the insulating spacer 1, while the ceramic sections 5 are arranged on the outside circumference of the insulating spacer 1 for the pieces as required. They are formed of epoxy resin.</p> |
