| 摘要 |
<p>A housing for electricity meters provides a composite structure, with the internal structure in plastics and the outer in steel. The plastics inner ayer provides protection against electrical faults and the steel layer against fire hazards. The sides, back and base are formed from hollow section plastics, profiled to provide the necessary rigidity. The edges are slotted to allow the top on a steel panel to be slid into position. Formed tongues ensure retention.</p> |
