NF C 33-209 vs IEC 60502: How to Specify Low Voltage Aerial Bundled Cables Correctly

Many EPC contractors and distributors still assume that “XLPE 0.6/1kV cable” is enough information to place an order. In overhead distribution, that assumption causes rejections at site.

For projects in France, Portugal, West Africa, the applicable reference is often NF C 33-209 / DMA C-33-209​ for aerial bundled conductors, not the underground power cable standard IEC 60502-1. The two standards differ in insulation thickness, messenger construction, UV rating and phase identification method.

Typical specification points that buyers miss:

• Phase conductor insulation on 70 mm² ABC is 1.8 mm XLPE, not the 1.2 mm used for underground cores.
• The street-lighting core (e.g. 16 mm²) uses 1.2 mm XLPE, with its own marking style.
• The neutral messenger can be bare AAAC or XLPE-insulated AAAC depending on utility rules; both are valid under different EDP and utility drawings.

Using IEC-general cables in an NF C 33-209 project usually fails the incoming inspection, even if the price looks attractive. The extra cost of a compliant cable is normally recovered by avoiding rework, penalty clauses and project handover delay.

For procurement teams, the practical checklist is: confirm the national standard in the BOQ, lock insulation thickness per core size, ask for third-party type test reports, and verify drum markings against the specified standard before shipment.

Zhenglan Cable manufactures LV ABC, LV/MV power cables and bare conductors to IEC, NF C, NP 3528, BS and NFC references, with factory test reports available on request.