| 摘要 |
<p>Fixing system for a panel with anti-piercing alarm. The panels are sandwich panels with two metal outer faces and an inner zone made of electrically-insulating material. The system is characterized in that it has at least two holes or bores at the ends of the panel such that each hole has two different diameters to prevent the two metal outer faces from communicating with one another once the screws or bolts have been positioned in the holes to fix the boards to the metal sections (the support structure for the panels). The hole of greater diameter spans one of the metal sheets, while the hole of lesser diameter spans the insulating material and the other metal sheet. Thus, the head of the metal fixing member sits on the core of insulating material without touching one of the metal sheets but in contact with the other. An electrical installation can therefore be put in place on the metal sections, and will constitute the conducting part, to activate an alarm when the panel is pierced, torn or broken.</p> |
