Clio II HT Leads - When To Replace?

Hi all,



1 x HT Lead has got a small chip in it. I can see the white netting (presumably for insulation) in the inner core of the wire. Should I replace?



If so, which brand is good to go for?



Car is 1.6 RXE Auto 1999. 37,000 on the clock.



Cheers,



J.