The E90 (or E60) class signifies that the specific product has been in a fire test where the electric circuit has been functional for a minimum of 90 (or 60) minutes in the non-collapsed system. All lengths, and all material and surface treatment options up to a 600 mm width. Long span fireproof cable tray, is a type of cable tray specially designed for cable laying over long distances, commonly available in channel and ladder type, capable of providing support between long spans, and usually used in industrial facilities, buildings, bridges or tunnels. It is mainly. One of the most common questions regarding cable trays is their span length. How far can they stretch? The answer depends on several factors, including the type of tray, the weight of the cables, and local building codes. Typically, cable trays can span anywhere from 6 to 24 feet without additional. Surface Finishing:Customized;Application:Network, Industrial, Construction, Cable Support, Cable Laying;Model Number:Customized;Product Name:Cable trunking;Material:Steel, Aluminum, Stainless Steel 201/304/316, FRP,Plastic spraying;OEM:Availabe;All Finishes:Pre-Gal, Electro-Gal, HDG, Powder. For fire-resistant cable trays, load capacity must be considered in two conditions: Normal operating conditions Fire exposure conditions, when steel strength is reduced by heat A tray that performs well at room temperature may deform or collapse quickly during a fire if it is not designed for. Meka Pro has tested and continues to test its products and cable management systems´ fire resistance with the cables installed and connected according to the temperature curve in the EN 1363-1 standard. Large span cable tray is assembled by pultruded FRP profiles.