For example, in the case of {HEAD ~ an insulator} which is assembled from a glass fibre rod surrounded by a flexible polymeric housing including a number of sheds, the barriers may be formed integrally with, or fitted to, the sheds prior to final assembly of {TAIL ~ the insulator} 
For example , in the case of { HEAD ~ an insulator } which is assembled from a glass fibre rod surrounded by a flexible polymeric housing including a number of sheds , the barriers may be formed integrally with , or fitted to , the sheds prior to final assembly of { TAIL ~ the insulator }
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL