| 摘要 |
<p>The fence (1) has a blue net lengthening element (11), a reflector (12) and an active light source (13) e.g. LED, present in an upper area of the fence. Holding distance (10) is provided between a fence lower edge (8) and a reference line corresponding to a bottom (9). A fence net (2) has net lengthening elements (22) arranged over each other and partially provided with adjacent electrical conductors that are subjectable with complementary polarities. The net has a cross-connection (21) transferring pressures between the lengthening elements.</p> |
