Explanatory notes
… 8546.90 ‑ Other Insulators of this heading are used for the fixing, supporting or guiding of electric current conductors … of non‑insulating materials, such as water, salts, dusts, oxides and smoke. Insulators are often given bell, … or compounded insulating materials. They may contain fixing devices (e.g., metal brackets, screws, bolts, clips, …