… Rail locomotives powered from an external source of electricity or by electric accumulators. …
Explanatory notes
… 86.01 ‑ Rail locomotives powered from an external source of electricity or by electric accumulators. 8601.10 ‑ Powered from an external source of electricity 8601.20 ‑ Powered by electric … powerful accumulators carried on the vehicle, or from an external conductor which may be either a rail or an overhead …