AS NZS 61386.22:2015 pdf free

AS NZS 61386.22:2015 pdf free.Conduit systems for cable management Part 22: Particular requirements – Pliable conduit systems
The test shall be made on six samples of conduit, the length of each sample being at least –
(a) 30 times the nominal outside diameter for plain conduits; and
(b) 12 times the nominal outside diameter for corrugated conduits.
Three of the samples shall be tested at ambient temperature; the other three shall be tested at the minimum declared transport, application and installation temperature at the values marked in accordance with Clause 7.1(v) with a tolerance of±2°C.
For the test at ambient temperature, the sample shall be clamped vertically in the bending apparatus as shown in Figure 201. The sample shall be slowly bent by hand to the left through an angle of 90±5°，back to the vertical position, to the right through an angle of 90±5°，and back to the vertical position. This sequence of operations shall be repeated three more times but at the end the sample shall not be bent back to the vertical position.The sample shall be maintained in the bent position for 5 min, after which it shall be placed in such a position that the straight portions are at an angle of 45±5° to the vertical, one end of the sample pointing upwards and the other downwards.
For the test at the minimum declared transport, application and installation temperature according to marked temperature classification, the sample clamped in the bending apparatus as shown in Figure 201 shall be conditioned for 2 h in a cold chamber at this temperature with a tolerance of±2°C.
A sample of a conduit and terminating conduit fitting shall be assembled in accordance with the manufacturer’ s instructions and mounted as shown in Figure 203. A current of 25 A,having a frequency of 50 Hz to 60 Hz, derived from an a.c. source having a no-load voltage not exceeding 12 V, shall be passed through the assembly for 1 min. Then, the voltage drop shall be measured between the points as shown in Figure 203 and the resistance calculated from the current and this voltage drop.
Where special devices are required for the coupling of conduit and terminating conduit fittings, they shall be sufficient to remove the protective coating from the conduit, or the protective finish shall be removed in accordance with the manufacturer’s instructions.AS NZS 61386.22 pdf free.