8546 (01/1988-..) Electrical insulators of any material (excl. insulating fittings)

85461000 (01/1988-..) Electrical insulators of glass (excl. insulating fittings) 85462000 (01/2011-..) Electrical insulators of ceramics (excl. insulating fittings) 85462010 (01/1988-12/2010) Electrical insulators of ceramics, with no metal parts (excl. insulating fittings) 85462091 (01/1988-12/2010) Electrical insulators of ceramics, with metal parts, for overhead power transmission or traction lines 85462099 (01/1988-12/2010) Electrical insulators of ceramics, with metal parts (excl. those for overhead power transmission or traction lines and insulating fittings) 85469010 (01/1988-..) Electrical insulators of plastics (excl. insulating fittings) 85469090 (01/1988-..) Electrical insulators (excl. those of glass, ceramics or plastics and insulating fittings) 8547 Insulating fittings for electrical machines, appliances or equipment, being fittings wholly of insulating material apart from any minor components of metal, e.g., threaded sockets, incorporated during moulding solely for purposes of assembly (other than insulators of heading 8546), electrical conduit tubing and joints therefor, of base metal lined with insulating material