Standard: According to UL 1581 and UL 1685 “Vertical-Tray Fire-Propagation and Smoke-Release Test for Electrical and Optical-Fiber Cables”.
Scopeï¼the test purpose is to determine flame propagation and smoke characteristics of these cables to qualify the cables for the limited smoke marking.
This test does not investigate the Toxicity of the products of combustion or Decomposition and the Constructional Requirements for the cable or any electrical, optical, or other performance requirements for the cable etc. function
Main Componentsï¼
1. ignition control system; 2. Collection hood and exhaust duct.
3. Flow - measuring control system; 4. Smoke-measuring instruments.
5. Temperature-measuring control system; 6. Flame-measuring control system
7. Date -acquisition system a). Flow-measuring, b). Temperature-measuring,
c). Velocity-measuring, d). Smoke-measuring.