The main factors for cable cracking are related to selection of cablecompound and extrusion process. The cable cracking may be also caused by inappropriate application and storage of materials.
无卤低烟阻燃电缆的应力开裂影响因素主要与材料选用，工艺挤出有关，也与使用环境和储存条件不恰当有关。
2
The middle annealing process can change the strength of cable foil, improve its elongation, reduce its anisotropy, and it's advantageous to the compound of aluminium foil.
中间退火工艺能改变电缆箔强度指标，提高其延伸率，减小各向异性，有利于铝箔的复合。
3
The hydrogen absorbing filling compound can be used to reduce the fiber attenuation caused by hydrogen and protect the optical fiber cable.