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*SOLVED* Potential (typo) error in 709.521.1.4 Wiring systems of marinas

*Note, my mistake, corrected by Chris P. in 1st reply. Question left in case it is of interest to anyone else*


I have just noticed what looks like a possible error in my early 18th Edition, and it isn't addressed in the December 2018 Corrigendum. It might have been mentioned already on the forum, but if so I missed it.


709.521.1.4 The following wiring systems are suitable for distribution circuits of marinas:

(i) Underground cables

(ii) Overhead cables or overhead insulated conductors

(iii) Cables with copper conductors and thermoplastic or elastomeric insulation and sheath installed within an

appropriate cable management system taking into account external influences such as movement, impact,

corrosion and ambient temperature

(iv) Mineral-insulated cables with a PVC protective covering

(v) Cables with armouring and serving of thermoplastic or elastomeric material

(vi) Other cables and materials that are no less suitable than those listed above


I assume "serving" in (v) should either be "sheath" / "sheathing" similar to the wording in (iii); or possibly "covering" as in (iv).


Does anyone know if this has been acknowledged and what the official correct wording (if different) should be?


Parents
  • Paper-insulated lead covered cables are usually protected by steel tape or steel wire armouring and served overall with hemp or pvc. The serving protects the steel armouring against oxidation and corrosion.

    This type of cable was (and still in service) mainly used by Electricity boards/ DNOs for the distribution systems in which case they are out of scope of IET regulations. But I think we are splitting hairs, I think we can let the regs off on this one, we know what they mean!


    Regards, UKPN
Reply
  • Paper-insulated lead covered cables are usually protected by steel tape or steel wire armouring and served overall with hemp or pvc. The serving protects the steel armouring against oxidation and corrosion.

    This type of cable was (and still in service) mainly used by Electricity boards/ DNOs for the distribution systems in which case they are out of scope of IET regulations. But I think we are splitting hairs, I think we can let the regs off on this one, we know what they mean!


    Regards, UKPN
Children
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