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US 8,822,826 B2Granted
Cable and installation kit for electrical installation with circuit integrity in case of fire
AssigneeWoertz AG
InventorsTamas Onodi, Andreas Dreier
Life of this patent
Estimating the term…
Abstract
A cable providing circuit integrity in case of fire is configured as a flat cable with plural high power current strands extending parallel adjacent to one another in a plane. Fire resistant insulating material is arranged between the high power current strands. An insulating jacket envelopes the high power current strands and the fire resistant insulating material.
Claims2
An installation kit for an electrical installation with circuit integrity in case of fire comprising
- a cable with circuit integrity in case of fire,
- wherein the cable with circuit integrity is configured as a flat cable with plural high power current strands extending parallel and adjacent to one another in a plane,
- wherein fire resistant insulating material is arranged between the high power current strands, and
- an insulating jacket envelopes the high power current strands and the fire resistant insulating material,
- and further comprising
- at least one flat cable deflection device comprising a cylindrical cable deflection element made from fire resistant insulating material,
- a support for the cylindrical deflection element where the support is made from fire resistant material and offset from the deflection so that the support facilitates the flat cable to envelop the deflection element without the flat cable contacting the support,
- at least one connection device for tapping into the flat cable with plural high power current strands extending parallel to one another in a plane, where the tapping is performed without strippin insulation, the high power current strands comprising conductors,
- wherein the connection device reaches about the flat cable and comprises contact screws that are configured to be screwed into the flat cable, where a respective pair of contact screws is provided for the respective high power current strands,
- wherein the two contact screws of a pair are arranged so that one contact screw contacts one side of the conductor of the high power current strand and the other contact screw contacts another side of the conductor of the high power current strands when the flat cable is connected, and
- wherein the contact screws comprise a thread so that the conductor is laterally clamped by both contact screws with the threads.
8 more elements
An electrical installation, comprising
- at least one cable with circuit integrity in case of fire,
- wherein the cable with circuit integrity is configured as a flat cable with plural high power current strands extending parallel and adjacent to one another in a plane,
- wherein fire resistant insulating material is arranged between the high power current strands, and
- an insulating jacket envelopes the high power current strands and the fire resistant insulating material;
- and further comprising
- at least one flat cable deflection device with a cylindrical cable deflection element made from fire resistant insulating material,
- a support for the cylindrical cable deflection element, where the support is made from fire resistant material and offset from the cylindrical cable deflection element so that it facilitates the flat cable to envelop the cylindrical cable deflection element without the support contacting the flat cable,
- wherein the cable transversal direction in front and after the deflection device extends horizontally, and
- wherein the flat cable at least partially envelops the cylindrical cable deflection element,
- at least one connection device for tapping the flat cable without stripping an insulation where the flat cable comprises plural high power current strands extending parallel to one another in a plane, the high power current strands comprising conductors,
- wherein the connection device reaches about the flat cable and comprises the contact screws that are configured to be screwed into the flat cable, where a respective pair of contact screws is provided for the respective high power current strands,
- wherein the two contact screws of a pair are arranged so that one contact screw contacts one side of the conductor of the high power current strands, and another contact screw contacts another side of the conductor of the high power current strands when the flat cable is connected, and
- wherein the contact screws comprise a thread so that the conductor is laterally clamped by the two contact screws with the threads.
10 more elements
Dependencies are inferred from the claim text.