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Differences between fire-resistant cable tray and ordinary cable tray

Differences between fire-resistant cable tray and ordinary cable tray

2020-12-21 Origin: Web View: 156

The fire-resistant cable tray is to spray a layer of fire-resistant paint on the surface of the ordinary cable tray to play the role of fire-retardant and fire-retardant! In fact, the cable tray itself does not catch fire, only the cable may catch fire.

Fire cable trays are different from ordinary cable trays in three points:

Firstly, different functions:

Fireproof cable tray: The fireproof cable tray is to spray a layer of fireproof paint on the surface of the ordinary cable tray to play the role of fire retardant.

2.Ordinary cable trays:  The cable trays in the building can be erected independently, or can be attached to various building (structure) and pipe corridor supports, should reflect the characteristics of simple structure, beautiful appearance, flexible configuration and convenient maintenance, all parts need to be galvanized and installed on the open cable tray outside the building.

Secondly, different structure:

1.Fireproof cable tray: The fireproof cable tray has a matte surface and is generally used in the distribution lines of firefighting equipment, including fire control rooms, fire pumps, fire elevators, smoke exhaust fans and automatic fire alarm systems, except for fire alarms. Fire-resistant cables can be used for other distribution lines outside the system, without the use of fireproof cable trays.

Ordinary cable tray: The cable tray is divided into cable trunking, perforated cable tray and cable ladder, net format and other structures, which are composed of brackets, supporting arms and installation accessories.

Thirdly, different requirements:

1.Fireproof cable tray: The fire-resistant cable trays are required to be fire-resistant for more than 1h in underground garages. For sections requiring fire protection of cable trays, refractory or incombustible plates and net materials can be added to pallets and ladders to form closed or semi-closed structures, and the surface of the cable trays should be painted in accordance with CECS 2490 “Technical Specification for Fire Protection Coatings for Steel Structures” Fireproof coating.

Ordinary cable trays: In engineering design, the layout of cable trays should be comprehensively compared based on economic rationality, technical feasibility, operational safety and other factors to determine the best plan, and also fully meet construction and installation, maintenance and repair and cable Laying requirements.