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Product introduction
This test apparatus to be used for testing cables required to maintain circuit integrity when subject to fire alone or fire with shock where the test condition is based upon flame with a controlled heat output corresponding to a temperature of at least 750˚C or fire with shock at a temperature of at least 830 °C.
Technical parameters
1.Heat Source : AGF Ribbon Type Propane Gas Burner
2.Structured with 3 rows of cross holes, Average front width of
burner: 15mm, Hole diameter: 1.32mm, Distance between the center:
3.2mm.
3.A polished hole row in pilot hole for flame preservation in both
faces of Burner plate.
4.Two thermocouples are horizontally installed separated 45mm left
and right of burner center-line to check temperature.
5.Mass flow controllers to regulate the gas and air flow, the
accuracy is not less than 1.5%.
6.Software can show the burner calibration temperature, propane and
air flow rate etc.
7.The current is provided by a three-phase star transformer with
sufficient capacity to maintain the required test voltage when
circuit integrity cannot be maintained.
8.Conductor connection indicator (LED indicator) to form a current.
9.The voltage value is automatically set by software and adjusted
by a panel controller.
10.Digital display of the current and voltage data, accuracy of
current is 0.001A.
11.Current protection using fuse with 2A.
12.The real-time measurement data of all current and voltage are
collected by computer, and the curves of current and voltage are
generated.
13.When circuit integrity cannot be maintained, the corresponding
indicator lamp is extinguished, the computer automatically
determines the state and records the time, and sends out the sound
and light alarm.
Product Features
1. The sample support device shall be such that the sheath or the
protected end of the cable or cable sample is supported
horizontally. One end of the sample is clamped by a fixed clamp to
prevent movement, and the other end supports the sample, cable or
The middle part of the cable is supported by two metal rings 300 mm
apart. The metal ring and other metal parts of the supporting
device are well grounded. The inner diameter of the metal ring is
about 150 mm, and the round bar with a diameter of 10±2 mm is used.
2. The ignition source is American AGF propane ribbon burner with
nozzle length of 500mm and nozzle nominal width of 15mm. The nozzle
has three rows of staggered nominal diameters of 1.32mm and a
center distance of 3.2mm. There is one on each side of the nozzle.
The small holes serve as guide holes to maintain flame combustion,
and the dimensional tolerance is ±5%;
3. The imported mass flow controller regulates the gas and air
flow, and the reading accuracy is not less than 1.5%;
4. Imported pressure reducing valve can provide an outlet pressure
of 0.1Mpa±3pa;
5. Imported pressure gauge, can provide 0-200kpa pressure range;
6. Imported Omega thermocouple with a diameter of 1.5mm for burner
temperature calibration;
7. Can set the burning test time, and automatically cut off the
gas;
8. Standard test software, can display burner calibration
temperature, propane flow, air flow;
9. The test is applicable to cables with rated voltage of 0.6/1.0
KV and below;
10. During the test, the current used for continuity inspection
shall pass through all the conductors of the cable. This current is
provided by a three-phase star transformer. The transformer has
sufficient capacity to maintain the required test voltage when the
leakage current is allowed. At the other end of the sample, each
conductor or each set of conductors is connected to a pointing
device (LED indicator) to form a current through which the data can
be obtained in computer software;
11. The voltage setting can be entered by the computer,
automatically set the voltage value. The voltage can also be
fine-tuned through the panel buttons;
12. The test circuit current protection adopts a fuse and conforms
to the D II type specified in GB 13539.5. Fuse standard 2A. Easy to
replace. And use imported miniature circuit breakers to protect
each test circuit;
13. The current and voltage data of the test cable are all passed
through the secondary instrument, digitally displayed, the test
current accuracy is 0.001A, and the actual current is 0.25A is the
best test current;
14. Real-time measurement data of all currents and voltages are
collected by computer and generate current and voltage curves,
showing the current and voltage curves of each cable under fire
conditions, and determining the fire resistance performance.
Further analysis of the cable as a function of fire time can be
made. The final data is stored in a computer database and a
standard report is generated for easy access;
15. Calibration of the flame temperature before the test, the
imported armored thermocouple is calibrated, the calibration
temperature is collected by the computer for at least 10 minutes,
and the fire mode is selected in the computer. According to the
fire supply mode, the computer performs steady-state sampling and
difference calculation according to the collected temperature, and
gives a verification report. Save the report and store it in the
database to ensure the reliability and authority of the
verification;
16. During the test, the gas and auxiliary air are both mass flow
controllers, and the venturi is mixed, the computer automatically
controls the flow valve, and the data is recorded in real time in
the database. The computer automatically controls the gas and
auxiliary air ratio to make the combustion Fully, producing a
stable flame and stabilizing the flame temperature;
17. When the circuit is normally energized, each circuit adopts the
imported indicator light. When the line is incomplete under the
flame condition, the corresponding circuit indicator is
extinguished. The computer automatically determines the current
state and controls the sound and light alarm.
Application:The wire and cable fire tester is used to test the fire resistance of the cable for wiring or grid, and burns in a flame of not less than 750 ° C and 950 ° C to test the integrity of the cable to maintain the circuit.
Standards
IEC:IEC 60331-11&12:2002,IEC 60331-21~23:1999
IEC 60331 Test for electric cables under fir conditions Circuit
integrity
IEC 60331 Part 11 Fire alone at a flame temperature of at least
750˚C
IEC 60331 Part 21 Cables of rated voltage up to and including
0.6/1kV
IEC 60331 Part 12 Fire with shock at a flame temperature of at
least 830˚C
IEC 60331 Part 31Fire with shock Cables of rated voltage up to and
including 0.6/1kV
Dimension:1750 mm (W) x 680 mm (D) x 1400 mm (H)
Weight:160kg
Installation requirements
Electrical: AC 380V 3-phase, 50/60Hz, 30A
Ambient Temperature: Operating 10°C to 35°C
Testing room: 3,000 mm (W) x 3,000 mm (D) x 3,000mm (H)
Gas: Air and Propane
Cables and Wires Flammability Testing Equipment.pd...
What is fire resistance cable?
The definition of a fire-resistive or fire-rated cable is a cable that will continue to operate in the presence of a fire. This is commonly known as a circuit integrity (CI) cable and is 2-hour fire-rated. ... This 2-hour fire-resistive cable is designed for emergency power circuits for fire pumps and emergency generators.
What is wire heating?
Resistance heating wire is used in a variety of applications for
generating heat. Household use can be found in toasters, portable
space heaters, warming plates and more. Stove burners are an
example of an electrical element used to create heat. Industrial
furnaces and dryers use wire elements to produce heat.