AS NZS 61386.21:2015 pdf free.Conduit systems for cable management Part 21: Particular requirements- Rigid .conduit systems. 6 CLASSIFICATION This Clause of Part I is applicable, except as follows: Addition: 6.1.201 Rigid conduit and fittings of insulating material For rigid conduit and fittings of insulating material, including smooth bore profile wall, the following are not applicable: (a) Clause 6.3(a) and (c)....