IEC60331 Small Furnace Method Reliable Fireproof Cables Fire Test/Testing Machine
1. Product Description
This test device is divided into two test zones according to the JIS A1304 standard, Japanese basic fire resistant requirements, IEC60331-12, IEC60331-31 requirements, Japanese standard wire and cable fireproof test furnace and IEC standard wire and cable fire resistance, ram impact test combustion chamber. The refractory furnace temperature increase program meets the temperature rise curve specified in JIS A1304. The test area is controlled by a main control cabinet and a PC, sharing the wire load and gas supply station. After the entire device on-line, the fire resistance performance of wire and cable can be tested.
2. Standards
JIS A1304, IEC60331
3. Technical Parameters
A: Japan standard wire and cable fire resistance test furnace
| The test tunnel composed |
brick,steel structure and fireproof and heat insulation material |
| Furnace size |
height 1.4m X width 0.45m X depth about 1.2m |
| The largest sample size |
length about 800 X diameter 80mm. |
| Working voltage |
AC380V±5%, 50Hz |
| Gas flow |
0-100m³/h |
| Maximum gas pressure |
3000Pa |
| Air flow |
5000m³/h |
| The maximum air pressure |
4000Pa |
| Test temperature control |
Conforms to the temperature requirements of 3-11 in JIS1304 |
| Furnace temperature |
±15°C |
| Specimen internal temperature |
±10°C |
| Timing range |
0-300min |
| Timing accuracy |
±1s |
| Temperature sensor |
The performance, number, and location of thermocouples in a furnace conform to the requirements of JIS A1304 |
B: IEC standard wire and cable fire-resistant, slamming test burning chamber
| Test flame gas source |
propane gas or liquefied petroleum gas (user-supplied gas) |
| The burner is a propane gas torch with Venturi mixer |
nozzle length 500mm, width 15mm |
| There are three rows of staggered holes in the nozzle |
the hole diameter is 1.32mm, and the hole pitch is 3.2mm. The test stand is made according to IEC60331 Figure 1, Figure 2, Figure 3, Figure 4 |
| Shock generating device |
Φ25 ± 5% thick round bar, length 600mm |
| The impact device hits at an angle |
60° |
| |
Impact time is automatically timed and automatic action is performed |
| |
With dual flow meter and pressure regulation |
| Air flow meter range |
0.5-5m³/ h |
| Gas flow range |
0.1-1m³/ h |
| With a temperature measuring device |
the flame temperature is automatically adjusted according to the set value (830°C) during the test, including the flameout protection device |
| Test time |
0-99min99s, can be set arbitrarily by PC |
| Intelligent detection function |
when the sample in the test process short circuit, automatic alarm and turn off the fire source |
| The size of the combustion chamber |
3.5m X 3m X 3m with exhaust air outlet |
C: specimen load and pressure resistant test system
| Load cabinet |
test voltage three-phase AC600V-1500V; test current range: 0.1-1A, test current can be adjusted according to the standard requirements, but more than 2A protection (fuse or circuit breaker); sample loop can monitor up to 5 (L1, L2, L3, N, PE lines) |
| Withstand voltage test |
Withstanding voltage (kV): AC 0.6-1.5 adjustable; Breakdown current (mA): 1-100 can be set; Withstand voltage time: 1-99min99s can be set; Automatic boost, boost speed : 1500V/min |
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