屏蔽：用轧纹(不轧纹)双面涂塑铝带纵包于缆芯包带之外，两边搭接粘合。
Shield: a corrugated (or non-corrugated) al tape with both sides plastic coated is applied to longitudinally wrap the core covering with two edges overlapped overlap seam sealed.
扁钢与扁钢焊接应采用搭接焊，搭接长度至少为扁钢宽度的2.5倍，且至少3边焊接。
The overlapped length should be at least 2.5 times of the width of the flat steel, and at least 3 edges need to be welded.
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