Other low tension procelain insulators including telegraph and telephone insulators
Low tension ceramic insulators for telegraph and telephone lines
HSN 8546 20 50 (other low tension porcelain insulators, including telegraph and telephone insulators) is not covered by a Bureau of Indian Standards Quality Control Order and carries no Partner Government Agency clearance requirement at the tariff-line level. Import follows the standard customs procedure: Importer-Exporter Code (IEC), bill of entry, commercial invoice, packing list. Other ceramic insulators within Chapter 85 — particularly high-tension types or insulators for power distribution — may fall under separate tariff lines that carry compliance.
The absence of compliance at this tariff line does not extend to the broader heading: high-tension ceramic insulators and glass or composite insulators classified elsewhere within heading 8546 each occupy distinct tariff lines that may attract BIS Quality Control Order obligations. Re-classification by customs on examination — for example, from low-tension to high-tension service — triggers retrospective compliance, including detention pending the relevant certification. Verify the rated voltage, intended application, and material specification against the customs tariff before relying on the absence of compliance here.