Short answer: an industrial plant MV/LV electrical BOM should separate medium-voltage cable systems, low-voltage panels, grounding, routing protection and maintenance spares.
| MV system | Include MV terminations, joints, lugs, surge arresters, cleats, CTs and switchgear accessories. |
|---|---|
| LV system | Include terminals, cable lugs, busbar supports, panel accessories, cable ties and labels. |
| Grounding | Include ground rods, conductors, clamps, exothermic welding, bonding braids and earth bars. |
| Cable routing | Include cable tray, conduit, glands, supports, covers, bends and fasteners. |
Industrial BOMs become incomplete when cable routing accessories and grounding items are separated from the main electrical package.