Translation of "Circuit de coupure de surtension " (French → English) :

Electrical apparatus for switching or protecting electrical circuits, or for making connections to or in electrical circuits (for example, switches, relays, fuses, surge suppressors, plugs, sockets, lamp holders, junction boxes), for a voltage not exceeding 1 000 V (excl. control desks, cabinets, panels, etc. of heading 8537 )

8536 | Electrical apparatus for switching or protecting electrical circuits, or for making connections to or in electrical circuits (for example, switches, relays, fuses, surge suppressors, plugs, sockets, lamp holders and other connectors, junction boxes), for a voltage not exceeding 1000 V; connectors for optical fibres, optical fibre bundles or cables | Manufacture from materials of any heading, except that of the product | Manufacture in which the value of all the materials used does not exceed 50 % of the ex-works price of the product |

A break, impedance, or short-circuit to earth in the electrical circuit, defects in the hydraulic or pneumatic leads, Bowden cables, solenoids or other components controlling or transmitting the energy intended to activate the concealment device.

If the rescue services require disconnection of the traction power supply, they shall receive a guarantee that the relevant sections of catenaries or conductor rails have been disconnected before entering the tunnel or a section of the tunnel.

However, if undervoltage and/or over voltage protection is provided, the requirements shall be met at rated voltage and in the immediate vicinity of the cut-off points.

3.15.2.2. a break, impedance, or short-circuit to earth in the electrical circuit, defects in the hydraulic or pneumatic leads, Bowden cables, solenoids or other components controlling or transmitting the energy intended to activate the concealment device.