6 results about "Firestop" patented technology

A firestop for pipes and conduits comprises a metal housing in which fire protection packs are attached, with a protective rail on the front face.

An apparatus for firestopping a cable tray having a cable load and extending through a partition. A housing of the apparatus is constructed to envelope a portion of the cable tray within the partition and defines an axial passageway between open front and back sides of the housing through which the cable tray and cable load extend. Firestop pads are arranged along the inside of the housing. An actuator is connected to a top firestop pad and is operable to move the top firestop pad between a first position disengaged from the cable load, which allows the cable load to be altered without interference from the top firestop pad, and a second position engaged with the cable load, which firestops the passageway surrounding the cable load.

The invention relates to the technical field of photovoltaic cable or wire installation, basic electrical elements, connecting devices and adhesives, in particular to a photovoltaic cable fire extinguishing protector, system, material and method for an MC4 connector. The protector comprises a hollow shell, a perfluorohexanone microcapsule patch arranged towards a heating area, a composite seal, a limiting structure and a high-viscosity heat-conducting interface material, and a closed cavity is formed after the hollow shell, the perfluorohexanone microcapsule patch, the composite seal, the limiting structure and the high-viscosity heat-conducting interface material are assembled. The equivalent heat transfer gap is limited, the equivalent ventilation rate is checked through a concentration-time curve, the patch explosive load is determined according to calculation, second-level establishment is achieved, and the volume fraction not lower than the fire extinguishing threshold value is maintained within the set time. The device does not need external energy supply, has the functions of mechanical protection, rapid fire extinguishing and after-combustion inhibition, and is suitable for various outdoor photovoltaic scenes.

The invention relates to a fire-fighting plugging device for an electrical equipment shell, and belongs to the technical field of electrical equipment shell parts. The device is installed in a through hole of an electric equipment shell and comprises a center channel used for a cable bundle to penetrate through and further comprises an annular piston rod which is coaxially arranged in a mechanism space on the periphery of the center channel. The wall surface locking mechanism comprises at least one wall surface locking block capable of moving in the radial direction; the cable bundle locking mechanism comprises at least one cable bundle locking block capable of moving in the radial direction; the first conversion mechanism is used for axially displacing the annular piston rod; and the second conversion mechanism is arranged to be used for converting the axial displacement of the annular piston rod into the radial inward movement of the cable bundle locking block. In the initial stage of a fire, a fire-fighting plugging body which is firmly anchored with an equipment shell and tightly attached to an internal cable bundle is actively formed.

The invention relates to a metallic housing (5) for a firestop through penetration device (4) The housing (5) is preformed to be installed in a break-through (3) of a firewall (2) to form a side wall of an axial channel and configured to receive penetrants (10); and has one or more of the following constructional features reducing thermal conduction between its opposite openings (6, 7): - a radial thickness of less than 2 mm; and / or - stainless steel, chrome steel, and / or other steel alloys with chrome, nickel, molybdenum, titanium, and / or tungsten used as its material(s); and / or - a corrugated longitudinal profile, increasing the length of heat conduction paths connecting the opposite openings (6, 7); and / or - a plurality of slots (17, 17a, 17b) extending at least partly in a circumferential direction and being successively arranged in the axial direction with offsets, increasing the length of heat conduction paths connecting the opposite openings (6, 7).

A firestop for one or more service components (fluid pipes, data and electrical cables, and HVAC ducts) the firestop comprising: a housing having: a first tubular part 12 that defines a first longitud