Short answer: a utility project electrical BOM should group products by voltage class, site area, equipment interface, installation function, standard, drawing reference and delivery batch.
| Cable system | Include cable joints, terminations, lugs, glands, cleats, trays, conduits and sealing parts. |
|---|---|
| Overhead line | Include insulators, clamps, crossarms, brackets, shackles, guy hardware, preformed fittings and fasteners. |
| Substation and switchgear | Include CTs, bushings, insulators, surge arresters, disconnect switches, panel accessories and busbar parts. |
| Grounding and lightning | Include ground rods, conductors, clamps, exothermic welding, earth bars, inspection pits and SPDs. |
Utility BOMs become risky when products are listed without voltage class, drawings or installation position. Grouping by function improves quotation accuracy.