| 摘要 |
<p>The protection device has a transverse vertical section in the shape of a capital gamma. The vertical limit prevents accidental access to the rail from the side and the horizontal limit prevents accidental access from above. The device is assembled from adjacent injection moulded plastics segments (1), incorporating transversal reinforcing streets (4) on the inside and/or the outside. Pref. each of the segments (1) has a length of between 65 and 95 centimetres and the longitudinal spacing of the successive reinforcing struts (4) is between 7 and 15 centimetres, the segments (1) secured between vertical posts (2) along the length of the current rail, e.g. spaced every 3 metres.</p> |
