Cable tray fire protection

A modular cable tray system comprising:

• a carrying element for a cable, the carrying element comprising a base and an upper side opposite the base, and at least two opposing side walls, each side wall having an outer side;
• and
• a first and a second fire protection layer, each comprising a surface corresponding to the base of the carrying element, and at least two opposing side edges;
• wherein the first fire protection layer is configured for enveloping, when in use, in a snug fit, at least the base of the carrying element and a portion of the side walls, and the second fire protection layer is configured for, when in use, covering at least the upper side of the carrying element and a portion of the side walls;
• and
• a fastening mechanism for fastening the first and the second fire protection layer to the carrying element,
• wherein that the fastening mechanism comprises a pin on an inner side of the side edges of the first and the second fire protection layers, and a catch on the outer side of the side walls of the carrying element, wherein the pin and the catch are arranged in a snap fit configuration.

A fire protection layer for a carrying element for a cable, the carrying element comprising a base and at least two opposing side walls, wherein the fire protection layer comprises:

• a surface corresponding to the base of the carrying element;
• at least two opposing side edges;
• a pin on an inner side of each of the side edges arranged to be, when in use, in a snap fit configuration with a corresponding catch on an outer side of each of the side walls of the carrying element;
• and
• spacers on the surface;
• wherein the fire protection layer is configured for enveloping, in use, in a snug fit, at least the base of the carrying element and a portion of the side walls, and wherein the fire protection layer expands when exposed to heat.

A fire protection layer for a carrying element for a cable, the carrying element comprising a base and at least two opposing side walls, and wherein the fire protection layer comprises:

• a surface corresponding to the base of the carrying element;
• at least two opposing side edges;
• a pin on an outer side of each of the side edges arranged to be, when in use, in a snap fit configuration with a corresponding catch on an inner side of a side wall of a cladding for the carrying element;
• and
• spacers on the surface;
• wherein the fire protection layer is configured for enveloping, in use, in a snug fit, at least the base of the carrying element and a portion of the side walls, and the fire protection layer expands when exposed to heat.