State the advantages if trunking over ducting system. – NABTEB QUESTION

Advantages of trunking over ducting system are:

(i) It serves as earth continuity conducts.

(ii) It has segregations which accommodate extra low voltage, low voltage or medium voltage.

(iii) It is supplied with large range of terminations and connections.

(iv) It can be used on rising mains (e.g. supplying the main to each floor of a multifloor flats) and generally mounted vertically.