The dielectric material provides {HEAD ~ capacitive coupling} of alternating currents from {TAIL ~ one conductor} to the other while preventing coupling of direct current from one to the other 
from
The dielectric material provides { HEAD ~ capacitive coupling } of alternating currents from { TAIL ~ one conductor } to the other while preventing coupling of direct current from one to the other
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH