Fire-resistant bridge bracketThe surface of the ordinary bridge is coated with a fire-retardant paint to act as a fire-resistant barrier! In reality, the bridge itself will not catch fire; it's only the cables that could potentially ignite. The fire-retardant principle of the paint...

Fire-resistant bridge trays are protected to the thickness specified in JB/T 10216-2000 for electrical control and distribution equipment.Cable trayTable 10 specifies that electroplating should be greater than 12μm, hot-dipping greater than 65μm, spray painting greater than 50μm, and fire-retardant greater than 500μm, which can be measured with a thickness gauge.

Flame-retardant fire-resistant bridge架main parameters

Fire-retardant Paint

Appearance: Dark gray

Uniformly thick fluid, free from lumps.

Surface dry time: 2 hours

Bond Strength: 0.78 MPa

Seismic resistance: The coating L/200 does not peel or flake off under bending.

Flexural resistance: No delamination or peeling of the coating at L/100 deflection.

Fire resistance: Coating remains unchanged after being soaked in tap water for over 24 hours.

Acid Resistance: Coating remains unchanged after immersion in 3% HCL for over 24 hours.

Alkaline Resistance: Immerged in 3% Ca(OH)2 solution for over 24 hours, the coating shows no change.

Salt Resistance: Coating remains unchanged after immersion in 3% NaCl solution for over 24 hours.

Freezing Resistance: 15 times

Different fire-resistant coating thicknesses are as follows:

Fire resistance limit: h 0.5, 1, 1.5, 2, 2.5

Coating Thickness mm 0.4-0.6 0.8-1.0 1.4-1.6 1.8-2.0 2.4-2.6

Inorganic refractory board

Fire resistance A grade

Thermal Conductivity (W/M, K) ≤ 0.5

Tensile Strength (Mpa) ≥ 15

Compressive Strength (Mpa) ≥ 45

Flexural Strength (Mpa) ≥ 35

Impact Strength (Mpa) ≥ 2.0