Se latelang ke karolo ea li-insulators tsa rona tse ntle ka ho fetisisa tsa terata ea motlakase, li-insulators tsa rona tse ntlehali tsa terata ea motlakase li entsoe ka HDPE ea maemo a holimo e nang le UV inhibitor e phahameng.

Hape re ka bula hlobo bakeng sa hao ha ho hlokahala. haeba otara ya hao ngata e phahameng, re bile re khona ho lefella litšenyehelo hlobo.

Lits’ireletso tse ntle ka ho fetisisa tsa terata ea motlakase li fapane le tsa moruo insulators ea terata ea motlakase, li insulators tse ntle ka ho fetesisa tsa terata ea motlakase tse entsoeng ka lisebelisoa tsa boroetsana, tse matla le ho tšoarella ho feta insulators ea terata ea motlakase ea moruo.