GB4715 "Technical requirements and test methods for Point type smoke fire detector"

ISO7240-7

Equipment No.:                   PX08004

Console Dimension：         600(W)×650(D)×1200(H)mm

Test Chamber Dimension：10000(W)×7000(D)×4000(H)mm

Power Supply:                     AC220V 7.5KW 

Weight:                                400kg 

• Room size 10m x 7m x 4.2m, interior black latex paint

  
  

• A 1m x 1m x 5mm iron plate is placed in the center of the laboratory to protect the ground.

  
  

• Required laboratory temperature 15 ~35℃, humidity: 25%~75%RH

  
  

• The smoke exhaust equipment is composed of an air collecting hood, a butterfly valve, an exhaust fan, and a smoke exhaust pipe. The end of the smoke exhaust pipe is connected with the main smoke exhaust pipe of the system.

  
  

• The smoke hood and exhaust pipe are made of SUS304, and the smoke hood is installed on the top of the laboratory

  
  

• Equipment according to the requirements of the standard to provide the following 4 fire source devices:

  
  

• SH1- Wood pyrolytic smouldering fire: 10 75×25×20mm beech sticks (approximately 5% water content) placed radially on a heating plate. Heating plate: rated power 2KW, diameter 220mm on the heating plate

  
  

• SH2- Cotton rope smouldering fire: Fuel: clean, dry cotton rope, 80m long, 3g weight, 90 support: metal ring and support with diameter of 10CM. Ignition method: manual ignition

  
  

• Sh3-polyurethane plastic fire: fuel: mass density of about 20kg/m³ non-flame retardant homogeneous polyurethane foam; Layout: 3 50cm×50cm×2cm pads are stacked together, the bottom plate is aluminum foil, and its edges are rolled inward; Ignition fuel: in a 5cm diameter disk, add

  
  

• Add 5mL methylated alcohol; Ignition method: manual ignition is adopted at the bottom

  
  

• A corner of the pad ignites the alcohol

  
  

• Sh4-n-heptane fire: fuel: n-heptane (purity & GT; =99%) + 3% toluene (purity 99%) 650g; Layout: placed in a container of 1100 square centimeters (33cm×33cm) in degree and 5cm height made of 2mm thick steel plate; Ignition method: manual ignition with long handle igniter;

  
  

• The imported OMEGA K thermocouple is used to measure the temperature of the electric heating plate. The temperature range is 0~1100℃ and the accuracy is 0.1℃

  
  

• Equipped with 8.2kg range, accuracy 0.1g of the electronic scale to measure fuel weight

  
  

• Equipped with German ALM-F fire laboratory special optical density meter, resolution 0.001dB/m, accuracy +/-0.001dB/m

  
  

• MIC ion concentration meter was selected

  
  

• The electric heating plate control system is composed of programmable logic controller (PLC), expansion module, power regulator and thermocouple, which can raise the temperature of the electric heating plate to 600℃ and stabilize in 11 minutes.

  
  

• Computer + professional software control test operation, guide the test process, and real-time display test data, save query.