Visual analysis system for thermal extension test of cross-linked cables
Designed and manufactured to meet the terms of IEC 60811-2-1; IEC 60811-1-2 and other relevant standards.
I Requirements for thermal extension test.
1. Heat extension test high temperature box
1.1. High temperature box for natural ventilation aging box
1.2. Temperature range: room temperature -300 ° C
1.3. the number of air changes: 8-20 times / h
1.4. Temperature fluctuation: <±0.5℃.
1.5. Temperature uniformity:±2℃
1.6. Temperature deviation: ± 2 ℃ heating time: room temperature -200 ℃ not more than 60min
1.7. The inner box material: 304 # stainless steel
1.8. High-temperature box should be equipped with an observation window, not less than 35cmx35cm
1.9. Power supply: 220V/4KW
1.10. The size of the inner box: not less than 550(W)x450(D)x650(H)mm.
2. Heat extension test device
2.1. ruler length: not less than 0-150mm ruler precision: 1mm
2.2. Material: 304# stainless steel
3. Weight( Not less than two sets of standard weights.)
II the technical parameters indicators.
1. temperature control range: room temperature ~ 300 ℃, temperature fluctuations ± 2 ℃.
2. the initial marking line spacing measurement: 5-25mm (20mm and 10mm automatic identification), ± 1%;.
3. Time control:0-9999s,±1s.
4. elongation index: range 0%~300%, ±1%. 
