灼热丝试验仪

一、用途：USES:
    在设备内部容易使火焰蔓延的绝缘材料或其他固体可燃材料的零件可能会由于灼热丝或灼热元件而引燃。在一定条件下，例如流过导线的故障电流、元件过载以及不良接触的情况下，某些元件会达到某一温度而使其附近的零件起燃。

    本试验机是利用模拟技术评定由于灼热元件或过载电阻之类的热源，在短时间内所造成热应力的着火危险性。适用于电工电子设备及其元件、部件，也适用于固体电气绝缘物料或其他固体可燃材料。
Inside the device makes the flame spread of insulating materials or other solid combustible materials of parts may be ignited by hot wire or hot components. Under certain conditions, such as fault current flows through a wire, components under the condition of overload and bad contact, some components will reach a light-off temperature and make the near its parts.
This machine is the use of simulation technology evaluation due to heat element or overload resistance of heat, in a short period of time caused by the fire risk of heat stress. Apply to electrical and electronic equipment and components, components, can also be applied to solid electrical insulating materials or other solid combustible materials.


二、参考标准：Reference standard:
参照标准：GB/T5169.10，IEC60695，UL746A 
Reference standard: GB/T5169.10 IEC60695, UL746A
 
三、试验原理：Test principle:
使用无火焰起燃源的灼热丝试验（灼热丝是一个规范的电阻丝环）它使用电加热到规定温度，然后在试验条件下，使灼热丝和试验样品接触。
Use the glow wire test no flame fuel source (hot) is a specification of resistance wire ring it using electrical heating to the temperature regulation, and then under the test conditions, make the glow wire contact with test samples.
 
四、性能详述Detailed performance 
1.箱内容积：0.5m3，宽*深*高：950*600*900（mm） 
2.灼热丝温度在500℃~1000℃范围可调 
3.测温装置：直径为0.5mm铠装细丝热电偶 
4、灼热丝：用镍/铬丝制成直径4.0mm的环（详见图1） 
5.加热电流：温度为960℃时电流在120A~150A之间 
6.对试验施加的力：0.8 N ~1.2N，并限制压入深度至少为7mm 
7.起燃时间（T1）和停燃时间（T2）的计时器: 0~99.99s范围内可调 
8．外形尺寸：L1130 mm×W630 mm×H1305mm
1. The overall volume: 0.5 m3, wide high deep * * : 950 * 600 * 900 (mm)
2. The glow wire temperature in 500 ℃ ~ 1000 ℃ range is adjustable
3. The temperature measuring device: 0.5 mm diameter thermocouple sheathed filaments
4, glow wire: made with nickel/chromium wire diameter 4.0 mm ring (see figure 1)
5. The heating current: when the temperature is 960 ℃ current between 120 a and 150 a
6. To test the force applied: 0.8 N ~ 1.2 N, and limit the depth of 7 mm at least
7. The light-off time (T1) and stop burning time (T2) timer: 0 ~ 99.99 s adjustable range
8. Overall dimensions: L1130 mm * H1305mm W630 mm
 
伍、使用方法Method of use
1．根据相关试验标准及试验要求，准备好试样，并将试样固定于试验架上，调整试样插入尺寸，以达到试验要求。（注：在试样安装好后，一定要关好观察窗门，以免温度不能达到试验要求。）
2．正确地接好试验机箱后的电源线，然后确认进线电源是否有良好接地，电源电压为AC 220V。
3、打开操作面板上的电源开关，并检查仪表是否正常。
4、根据相关试验标准及试验要求，设置面板上的“试验温度”、“灼热时间Ta”、“起燃时间Ti”及“停燃时间Te”。
5、上述操作到位后，便可打开操作面板上的“加热”开关，转动“电流调节”旋钮直至电流表显示出试验电流所需值（注：在调节电流的同时，灼热丝头的温度也在发生变化）。并观察“试验电流”和“试验温度”的数据显示情况。
6、待“试验温度”（即灼热丝头的温度值）达到试验所需温度值时，按下面板上的“试验启动”，载样小车便会自动向右移动，靠近试样，当试样与灼热丝头接触时，“灼热时间Ta”与“起燃时间Ti”同步计时，即试验开始。（注：调节试样与灼热丝头之间的位置时，若有偏差，可按“左行”或“右行”来进行微调。）
7、当试样被引燃时，立即按下“Ti停止”，使“起燃时间Ti”停止计时，“停燃时间Te”开始自动计时。
8、当“灼热时间Ta”计时停止时，载样小车将自动脱离（即返回原位），同时加热也会停止。
9、观察试样在燃烧过程中所掉下的残渣，当试样燃烧到快熄灭时，则需立即按下“Te停止”钮，使“停燃时间Te”停止计时。（注：在此试验中，停燃时间就是试样燃烧所用时间。）
10、试验结束后，打开操作面板上的“风扇”及“照明”开关，以便观察试样，并排除废烟气。
11、然后打开观察窗门，取下试样，记录试验结果，清洁箱内污垢，并关闭电源。
1. According to relevant test standard and test requirements, ready to sample, the sample is fixed on the test rack, adjust the insert sample size, to meet the test requirements. (note: after the sample is installed, be sure to close observation Windows, so as to avoid temperature cannot meet the test requirements.)
2. Good test case after the power cord correctly, and then confirm whether power is well grounding, power supply voltage of 220 v AC.
3, open the power switch on the operation panel, and check whether the instrument is normal.
4, according to relevant test standard and test requirements, set up on the front panel "test temperature", "hot time Ta", "the light-off time Ti" and "stop burning time Te".
5, after the above operations in place, can open the "heat" on the operation panel switch, turn the "current" knob until the ammeter shows test current required value (note: in regulating current at the same time, there are changes in the temperature of the hot wire head also). And watch the "test current" and "test temperature according to the situation.
6, to test temperature (the temperature of hot wire head) to test the required temperature, press the "test launch," on the front panel sample car will automatically move to the right, close to the sample, when sample contact with hot wire head, "Ta" burning time and timing "light-off time Ti", namely the trial begins. (note: the adjustment between the sample and glow wire head position, if there is deviation, can press "left" or "right" to fine-tune.)
7, when the sample is ignited, immediately press the "stop Ti", make "the light-off time Ti" stop timing, "stop burning time Te" began to automatic timing.
8, when "Ta" hot time timer stop, the car will automatically load sample from (i.e., return to the in situ), also will stop heating.
9, observe the specimen in the process of burning off the residue, when sample burns out to fast, need to press "Te stop" button immediately, make "stop burning time Te" stop timing. (note: in this experiment, stop burning time is used sample combustion time.)
10, after the test, open the operation panel "fan" and "light" on the switch, in order to observe the sample, and eliminate waste gas.
11, and then open the observation Windows, remove the sample, record test results, clean the dirt in the cabinet, and shut off the power.

陆、注意事项Matters needing attention
1、在试验期间，此设备必须接地，以免产生静电反应。
2、试验时，必须关闭试验箱门，以免灼热丝头的温度不能达到试验要求。
3、试验结束后，请勿用手去接触灼热丝，以免高温烫伤。
4、定期给设备传动部件注入润滑油，以免影响试验的顺利进行。
5、做好设备的维护与保养工作。
1, during the test, the equipment must be grounded, lest produce electrostatic reaction.
2, test, it must be the door is closed test, in order to avoid the temperature of the hot wire head can not meet the test requirements.
3, after the test, please do not use hand to touch hot wire, so as to avoid high temperature burns.
4, on a regular basis to lubricating oil injection equipment driving part, lest affect test smoothly.
5, equipment maintenance and maintenance work.