Insulating fittings of ceramics

85.47 - Insulatin fittings for electrical machines, appliances or equipment, being fittings wholly o insulating material apart from any minor components of metal (for example, threaded sockets) incorporated during moulding solely for purposes of assembly, other than insulators of heading 85.46; electrical conduit tubing and joints therefor, of base metal lined with insulating material. f 8547.10 8547.20 8547.90 - Insulating fittings of ceramics - Insulating fittings of plastics - Other (A) INSULATING FITTINGS FOR ELECTRICAL MACHINES, APPLIANCES OR EQUIPMENT, BEING FITTINGS WHOLLY OF INSULATING MATERIAL APART FROM ANY MINOR COMPONENTS OF METAL (FOR EXAMPLE, THREADED SOCKETS) INCORPORATED DUFUNG MOULDING SOLELY FOR PURPOSES OF ASSEMBLY, OTHER THAN INSULATORS OF HEADING 85.46 With the exception of insulators as such (heading 85.46), this group covers all fittings for electrical machinery, appliances or apparatus, provided : L (i) They are wholly of insulating material, or are wholly of insulating material e.g., plastics) apart from an mnor com onents of metal (screws, threaded soc ets, sleeves, etc.) incorporate during moul$ng solely for purposes of assembly. d' and (ii) They are designed for insulating purposes even though at the same time they have other functions (e.g., protection). In general the fittings of this group are obtained by moulding or casting, or by sawing, cutting or otherwise working the raw material. They may be drilled, threaded, filed, grooved, etc. They may be made of an insulating material (e. , glass, ceramics, steatite, hardened rubber, plastics, resin impregnate paper or paperboard, as%. estos-cement or mica). B These fittings may be in various forms. This grou includes, inter alia, covers, bases and other arts of swtches, circuit breakers, etc.; bases an supports for fuses; rings and other parts for ?amp-holders; formers for resistors or coils; connection strips and dominoes not fitted with their terminals; cores for bobbins and windings of various kinds; sparking plug bodies. The heading does not cover fittings which, even though made wholly of insulating rnaterial (or made wholly of insulating material apart fiom any minor components of metal incorporated during moulding solely for the purposes of assembly), have not been specially constructed for insulating purposes, such as containers, covers and separator plates for accumulators (heading 85.07). (B) ELECTRICAL CONDUIT TUBING AND JOINTS THEREFOR, OF BASE METAL LINED WITH INSULATING MATERIAL This group covers the metal tubin used in permanent electrical installations (e.g., house wiring) as insulabon and protection for t e wires, provided it has an interior lining of insulating material. Uninsulated metal tubing, often used for the same purpose, is excluded (Section XV). % The tubing of this group consists either of spiralled metal strip wound on to an interior tube of insulating materid, or of rigid metal tubing (usually iron or steel) coated or lined on the inside with insulating material. The insulating material may be special electricall Insulating varnish, paper or paperboard, rubber, plastics, etc. Metal tubing simply coated w i 4 varnish to prevent corrosion is excluded (Section XV). This group also covers joints used for connecting the tubing of this heading provided they are also of base metal and coated or lined with insulating material (e.g., straight joints, elbows, tee joints and cross-overs). Joints such as tee 'oints, cross-overs, etc., fitted with terminals for electrical connections are excluded (heading 85.35 m 15-36). The heading also excludes tubing who11 of insulating material (e.g., of rubber, plastics, braided textile yarns or glass fibre yarns); this 1s classi ed accordmg to the constituent material, unless constituting an ~nsulatorof heading 85.46. H