Introduction:
This apparatus is used to test the vertical installation of a bunched cable or optical cable to suppress the flame vertical spreading under the specified conditions, is the necessary equipment for power cables, control cables and fiber optic cable bundle burning test.In addition,if the tester burner adjust of 20 degrees,it can be achieved by IEEE 383 (IEEE 1202) testing standards.This tester can also be equipped with heat release instrument configure port, with the gas analyzer can measure the thermal power values such as HRR (heat release rate), SPR (smoke production rate) and so on.
Standard:
• UL1685
1. UL combustion exposure detection is a combustion detection on the vertical cable shelf, which is used to determine the cable encounter When the fire source is burned, the cable of the electrical and fiber cable damage the height value and the amount of smoking. In line with UL detection rules.
The cable must meet the following requirements (see 10.1 and 10.2):
a) The damage height of the cable should be less than 8 feet (244cm) from the bottom of the cable.
b) Total smoke does not exceed 95 square meters.
c) The maximum smoking rate does not exceed 0.25 square meters per second.
2. This test is to determine the spread of these "limited smoke production" cables and the specialty of smoke to determine these electricity
Whether the cable is eligible to add the "LS" logo to their type of letters.
3. The combustion or decomposition of the products that are not surveyed in this test.
4. This test does not include the structural requirements of the cable or any electrical, optics or other performance requirements of the cable.
• IEC 60332-3-10
1 Scope
The international standards include 3-10, 3-21, 3-23, 3-24 and 3-25 of IEC60332. The test method is given in this standard. Under the prescribed conditions, the beam wires, cables, and flame vertical spread of vertical installation under the flame conditions are evaluated.
This section of IEC60332 provides detailed regulations for instruments and its settings and calibrations.
IEC60695-4; Fire Risk Test-Part 4: Terms of Burning Tests;
IEC Guide 104: The formulation of security publications, basic security publications and combined safety publications.
• EN 50399
• GB/T 18380.31
• IEC 60332-3 :Test on Electric cables under fire conditions part 3 : Test on bunched wires or cables
• KS C IEC 60332-3-21 : Category A F/R
• KS C IEC 60332-3-22 : Category A
• KS C IEC 60332-3-23 : Category B
• KS C IEC 60332-3-24 : Category C
• KS C IEC 60332-3-25 : Category D
Feature:
1.The dimension of the stainless steel test chamber is 1,000±100(W)x2,000±100(D)x4,000±100(H)mm. Interior surface of the chamber is higher than the ground, and the rear side covered with insulation material;
2.Equiped with a stainless steel ladder.
3, 2 spare sample holder;
4, ladders are made of stainless steel，corrosion resistant and easy to clean;
5,In the lower part of the chamber, there is an air inlet which dimension is 800±20(W)×400±10(D) , at the position of 150±10 mm in the front of the box.
6, There is mounted a dia 2mm K type thermocouples inside of the chamber;
7.The top of the chamber is equipped with anemometer; monitoring the wind speed outside the chamber.
8.There is an vent 300±30 (W) ×1,000±100 (D) on the top of the chamber,which is convenient for flue gas removal during the test process, and the wind speed is at 10m/s (adjustable).
9.Equipped with a standard electrical control cabinet;
10.Stainless steel smoke exhaust pipe and related accessories
Combustion System:
1.The burner: Belt type propane gas burner size of 257mm × 4.5mm, with total of 242 openings, which arranged in 3 lines of 81,80,81, the diameter of the hole is 1.35mm, the distance between the holes is 3.2 mm;
2.Equiped with high-precision ball valve to control the gas off;
3.Two flowmeters: air flowmeter and gas flowmeter and control valve;
4. The front of the tester is provided with a flame stop tube to prevent the propane gas from tempering, thereby ensuring the maximum safety of the sample.
5. Combustion angle: horizontal; automatic ignition device; (20 degrees adjustable is optional)
6.The flame temperature of the burner can reach 1100 ℃.
7.Gas and air compensation can be automatically completed by computer program
8.Real-time temperature monitoring in the chamber; equipped with high temperature alarm and automatic control of gas shutdown
Control System:
1.PLC with large touch-screen control system;
2, This tester can automatic ignition and automatic timing, timing range of 999min and precision 1s;
3, Experimental data is automatically stored, free inquiry;
4, With 40 minutes and 1 hour timing reminder function;
5.Emergency Cut-off Device
6.Standard parameters can be queried on the screen
Apparatus Parameters:
1、The size of thechamber is 1,000±100(W)x2,000±100(D)x4,000±100(H) mm;
2、Dia 2mm K type thermocouples.
3、Adiabatic coefficient of the chamber is 0.7W/m2K.
4、Gas: 95% purity propane (customer-owned)
5、Gas control flow: 100 kpa, air velocity at 20 ℃:（77.7±4.8）L/min；propane（13.5±0.5）L/min；
Option:
1.Pollution Smoke Absorber:acidproof, anticorrosive, multi-access dust removal device;Equipped with relevant accessories such as pumps and fans
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