GB/T 12706-2002对电力电缆铠装钢带的厚度进行了调整，相应的护套厚度也发生了变化，材料用量相应降低。
The GB/T 12706-2002 adjusts the thickness of armouring steel tape of power cable, and the thickness of corresponding protective jacket changes too, and material usage reduces correspondingly.
youdao