BS Wire and Cable Fire Resistance Tester Product description: The structure and performance of BS fire resistance impact shock tester, including fire resistance test, water spray fire resistance test and mechanical fire resistance test, suitable for mineral insulated cable which the rated voltage is not exceeding 450/ 750V, maintain circuit integrity for a long time under fire conditions. In comply with the British fire resistance cable standard BS 6387 Standard: • BS6387: 2013 1. Fire resistance test: the fire resistance test bed consists of the following parts: 1.1: Heat source Cable support system: Both ends of the cable sheath are horizontal clamped. The middle part of the cable is fixed by two metal rings (spacing distance 300mm), the metal rings and the other metal parts of the device are grounded. For those non-armored cables which diameters are less than 10mm, or some other cable with noticeable displacement occurred during the test, the metal rings should be 2 pcs, and each metal ring is fixed in the original ring at about 150mm 1.2 Continuous detection device: During the test, make the current get through all the cores of the cable, a three-phase star shape connected transformer or three single-phase transformers (or a single-phase transformer, if the test is for single-core cable), and ensure that it is absolutely able to keep it maintaining 3A maximum allowable leakage current at the test voltage. At the other end of the cable, each core wire is connected with a lamp, and load the current of close to 0.25A under the rated cable voltage 1.3 Heat supply is a tubular gas burner with 610 mm length and can be forced to supply methane and a flame dense 1.4 Temperature measurement: place a armored thermometer of 1.5mm diameter near the inlet, and be parallel to the top of the burner 75mm 1.5 Testing flame temperature and time: (view BS6387 flame rating) A 650℃ ± 40℃ -- 3 hours B 750℃ ± 40℃ -- 3 hours C 950℃ ± 40℃ -- 3 hours S 950℃ ± 40℃ -- 20 minutes 1.6 Specimen: Specimen is a section of finished product, with a length not less than 1200mm, remove the sheath and covering layer of 100mm on the both ends. The wires of the cable two ends should be in accordance with the electrical connection 1.7 Test voltage: 100~1000V adjustable 1.8 Test Current: 100~260mA adjustable 2. BS resistance to mechanical shock and fire: 2.1 Walls and installations: The walls are made of heat resistant, flame retardant materials, and fixed to the two horizontal girders, one on upper of the board and the other one on bottom of the board. This board is about 900mm long, 300mm wide, 9mm thick, and the total weight of walls (that is to say, the board plus the supporting frame) is 10 ± 0.5 kg. Each girder is about 1m long, 25㎡ square pipe. If you need to fill materials, you need to place them inside of girders. The upper girder has to be fixed on the board, to make the upper surface be flush with the upper edge of the board. There is a horizontal hole on each girder and outer edge of the board, the precise position is determined by the requirements of the particular support pad and the supporting frame. The wall is bonded to the frame by 4 rubber bushings, the bushing diameter is approximately 32mm, thickness is 20mm 2.2 Heat supply: a strip burner with a length of 500mm which is able to burn 500mm cable specimens, the burner assembly is adjustable, it is able to furnish a bright flame with temperature of 650℃ 2.3 Temperature measurement: an armored thermometer of 1.5 mm diameter, make the thermometer through the wall and keep one end of the thermometer 8mm-10mm away to the wall. The temperature is measured by the following procedure: In one end of the low-carbon steel rod with diameter 3mm ± 5%, length 300mm, tie a thermometer on it, so that it can measure the temperature of the rod. Grab the rod and make it close to the flame, keep it 40mm to 50mm far away from the flame. When the flame temperature reaches to 950℃, the steel rod temperature reaches 400℃ in 10s to 20s, when the flame temperature reaches to 650℃, the steel rod temperature reaches 400℃ in 20s to 40s. 2.4 Test flame temperature and time: Test temperature needs to be selected from the following table: X 650 ± 40℃, Y 750 ± 40℃, Z 950 ± 40℃. 2.5 Shock device: a low-carbon steel rod (diameter 25mm ± 5%, length 600mm ± 5%). Longitudinal section of the rod parallels to the wall, and is higher than the top of wall 200mm. An axis divides it into 200mm and 400mm two parts, the longer section towards the wall. Every 30±2s, it drops down from the parallel position to the center of the wall at 60℃. 2.6 Test voltage: 100 ~ 1000V adjustable. 2.7 Test Current: 100~260mA adjustable 3. Water and fire resistance test: 3.1 Heat supply: a strip burner with a length of 500mm which is able to burn 500mm cable specimens, the burner assembly is adjustable, it is able to furnish a bright flame with temperature of 650℃ ± 40℃. 3.2 Temperature measurement: Place an armored thermometer of 1.5 mm diameter under the surface of the cable. 3.3 Test flame temperature: 650℃ ± 40℃. 3.4 Water spray: a shower nozzle mounted on a test stand, in the middle of the burner, the pressure is 250KPa to 350KPa, spray 0.25L/㎡ to 0.30L/㎡ water around the specimens. This rate measurement requires a collection tray, this tray should have a sufficient depth to make its long axis parallel to the axis of the cable and be center placed. This tray is approximately 100mm wide 400mm long. 3.5 Specimen: Specimen is bigger than 1500mm from the finished products, and has been done bending test at ambient temperature, remove sheaths and coating layers of 100mm at each end. The lead wires at the ends of the cable should be properly handled in accordance with electrical connections and suggestions of manufacturers 3.6 Test voltage: 100 ~ 1000V adjustable. 3.7 Test Current: 100~260mA adjustable Specifications: • Test main machine dimensions: 2430mm (W) × 770mm (D) × 1600mm (H) • Console dimensions: 1500mm (W) × 900mm (D) × 1300mm (H) • Tank dimensions: 1500mm × 1200mm × 900mm • Test chamber: 3M × 3M × 3M(prepared by users) • Air source: propane, air (prepared by users) • Power supply: two-phase AC380V + N 50 / 60Hz 30A go to product group+
TICW8-2012 Medium Voltage Wire and Cable Fire Resistant Tester Product description: As the development of high-rise buildings, the improvement of the fire-prevention level and the safety awareness of citizens, the medium voltage fire resistant wires and cables are emerged at the right moment, however, the low voltage cable fire-resistant test standard of the nominal voltage which is up to 0.6/1KV is unable to reflect the property of medium voltage cable correctly, so this medium voltage wire and cable fire resistant tester is designed to improve its quality. The test machine consists of two parts that specimen holder and control cabinet, the structure and properties are designed according to the standard TICW8-2012 Standards: • TICW8-2012 Technical parameters: • Fire frame: the inside frame welded by square tube, A3 steel plate shell + black anti-static spray, both ends of the specimen are independent supporting frame Burner: 500mm ribbon burner 2 pcs (including venturi mixer), the blowtorch is able to be up and down, back and forth to adjust to meet the position requirements of the specimen • Sample holder: consists of two metal ring bracket, the intermediate space is about 500mm, test supporting metal ring inner diameter of 150mm, wire diameter of 10 ± 2mm; one end of the specimen fixed with clamps to prevent movement, and the other end is a free support • Specimen applied voltage: AC1 ~ 10KV adjustable, leakage current 0 ~ 50mA • Stop fire supply and cut off voltage when specimen is failure • Fire supply time: 0 ~ 999 Min, adjustable • Control and regulation of gas source: air mass flow meter 20 ~ 200L / min adjustable, propane mass flow meter 2 ~ 20L / min adjustable • Flame temperature detection: two pcs of Φ1.5mm US OMEGA temperature sensor • Control mode: push-button control Specifications: • Specimen support dimensions: 1000mm (W)×600mm(D)×1000mm(H) • Control cabinet dimensions: 2000mm (W)×900mm(D)×1300(H) • Test chamber: 3m×3m×3M (prepared by users) • Gas source: propane and air (prepared by users) • Power supply: AC380V 50/60Hz 30A go to product group+
GB2406-2009 Digital-readout Oxygen Index Tester Product description: Digital-readout oxygen index tester is used to test the required oxygen concentration (volume percent) in the process of polymer burning. Polymer OI value is the min oxygen volume percent of the required oxygen and nitrogen gas mixture in the process of this material is able to be kept burning for 50 mm or 3 minutes once being ignited. Standard: • GB2406-2009 Features: • Simple structure, and easy operation • It is a tool to identify the polymer burning performance, as well as a tool of the related research, thereby, we can get a better understanding of the polymer burning • Applied to test the property of plastic, rubber, forth etc • The test result is accurate and with very good reappear function, therefore, it’s an essential testing instrument for researching and producing flame-resistant materials Technical parameters: • Internal diameter of the combustor: 100mm • Height of the combustor: 450mm • Pipe hole diameter of the long pole igniter trailing end ¢2±1mm • Flowmeter: 160~1600L/H adjustable • Precision of the pressure gauge: level 2.5 • Resolution of the pressure gauge: 0.01Mpa • Resolution of the Oxygen concentrate indicator: 0.1% • Oxygen sensor: imported from Germany with high precision • Gas source: the GB3863 specified oxygen, the GB3864 specified nitrogen • Experiment environment: temperature: 10~35℃, humidity: 45-75% • Input pressure: 0.2-0.3Mpa • Working pressure: 0.05-0.15Mpa • Sample type: self-supporting materials and non-self-supporting materials • Oxygen index die: 10mm×100mm Specifications: • Overall dimensions: 700mm(W)×400mm(D)×600mm(H) • Power supply: AC220V, 50/60Hz 5A • Air source: oxygen, nitrogen( prepared by users) go to product group+
UL1581-21003 VW-1 (Vertical-specimen) Flame Tester Product description: VW-1 (Vertical-specimen) Flame Tester is designed in accordance with UL1581 and approved by Guangzhou Meihua UL corporation, completely in line with VW-1 flame test standard, is used for test of VW-1 and FT-2. It’s economic and applicable, which is widely used in wire and cable industry. The test is taken in a sealing laboratory which volume is 4.32 cubic meters. Test methods: Adjust the height of the flame, put the top of the flame under the sample to burn for 15s, then put out for 15s. Examine the sample’ burning situation after repeating 5 times. You can set the burning, go out time and times of repetition freely and make it operate automatically. Standards: • UL1581-21003 Technical parameters: • Test chamber: It adopts electrostatic spray paint in outside and electrostatic roast black paint inside, who is rustproof and has a great looking • There’s a fume extractor on the top, so that the waste gas can be released when the test is completed. There’re 2 air intakes on the lower of both sides, and it’s equipped with a set of pneumatic seal operation device • There’s an observing-window in the front, which is convenient for observation • It adopts anti-smoke and anti-mist round Lamps inside • 7" color touch screen and PLC control • Flame time setting: 0~999S adjustable • Stop flame time setting: 0~999S adjustable • Continuous flame time setting: 0 ~ 999s, settable • Heat sensor adopts high rates of electrolytic copper • Equipped with a imported thermocouple of ¢0.5, type K, whose shell is stainless steel • The smart temperature controller is match with the K type thermocouple, the reading is beyond to 1000℃ • With the function of high-pressure auto ignition • Blowtorch: imported from USA HUMBOLDT, applying with the requirements of ASTM D 5025-99, standard power: 500W, angle: 20° • Test support frame: VW-1 and FT2 flame test support frame • "U" type tube pressure meter: 1 (imported from American Dwyer) • Flowmeter: 0.2 ~ 2L / Min adjustable, high-precision • Equipped with a micro-printer. Specifications: • Dimensions of test chamber: 2m(W)×1.2m(D)×1.8m(H) • Overall dimensions: 2020mm(W)×1250mm(D)×2365mm(H) • Power supply: AC 220V 50/60Hz 3A • Air source: propane, air( prepared by users) go to product group+
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