BS EN 61386-25:2011 pdf download – Conduit systems for cable management Part 25: Particular requirements — Conduit fixing devices
10.3.2 Replacement of the last paragraph:
The test shall be made on the weakest part of the conduit fixing device.
10.3.3 Replacement:
After the test, the mandrel or conduit shall remain inside the conduit fixing device and there shall be no sign of disintegration nor shall there be any crack visible to normal or corrected vision without magnification.
At least nine of the twelve samples shall pass the test.
10.4 Bending test Not applicable.
10.5 Flexing test Not applicable.
10.6 Collapse test Not applicable.
10.7 Tensile test Not applicable.
10.8 Suspended load test Not applicable.
Addition:
10.101 Lateral load test
10.101 .1 Two conduit fixing devices are mounted with a mandrel as shown in Figure 1 01 or with an appropriate length of conduit as shown in Figure 1 02.
Conduit fixing devices which can be used with any type of conduit, with outside diameters according to IEC 60423, shall be tested using a steel mandrel with an outside diameter according to the minimum diameter of the relevant size, applying a load, including the weight of the steel mandrel, according to the classification in 6.1.101, and Table 101. The steel mandrel shall have a surface roughness of 7 µ m Ra in accordance with ISO 4287. The manufacturing tolerance of the mandrel shall be ) ( 0 02 , 0 − mm up to and including 20 mm and ) ( 0 03 , 0 − mm above nominal size 20 mm. Conduit fixing devices which can only be used with a specific conduit shall be tested using that conduit and the manufacturer shall declare the performance of the combination of conduit and fixing device. For the purpose of applying the load, a steel rod with an outside diameter of 30 % to 50 % of the inside diameter of the conduit is inserted through the conduit and a load including the weight of the steel rod, according to the classification in 6.1.101, and Table 101, is applied across the two ends of the steel rod. The test is carried out on 3 pairs of conduit fixing devices wall mounted and another 3 pairs of conduit fixing devices ceiling mounted.
10.101.2 For metallic fixing devices, the test load, as declared by the manufacturer or responsible vendor, is applied, without shock, for a period of ) 300 ( 10 0 + s at ambient temperature.
10.101.3 For non-metallic and composite fixing devices, the sample assembly is then placed in a full draft air circulating oven. The tests are carried out after the oven temperature has reached and maintained the declared maximum temperature according to Table 2 with a tolerance of ) ( 2 2 + − °C. The load is applied, without shock, and held for a period of ) 60 ( 5 0 + min.
10.1 01.4 After the test, the conduit shall still be supported by the conduit fixing devices. This test is not intended to check the fixing into the mounting surface.
10.1 02 Axial load test
10.1 02.1 Conduit fixing devices declaring axial conduit retention according to 6.1.102 are tested as follows:
Conduit fixing devices which can be used with any type of conduit, with outside diameters according to IEC 60423, shall be tested using a steel mandrel of appropriate length with an outside diameter according the minimum diameter of the relevant size. The steel mandrel shall have a surface roughness of 7 µ m R a in accordance with ISO 4287.
The manufacturing tolerance of the mandrel shall be ) ( 0 02 , 0 − mm up to and including 20 mm and ) ( 0 03 , 0 − mm above nominal size 20 mm. The mandrel is assembled to a conduit fixing device, in accordance with the manufacturer’s instructions and Figure 103.
Conduit fixing devices which can only be used with a specific conduit shall be tested using that conduit and the manufacturer shall declare the performance of the combination of conduit and fixing device.
A sample of conduit with appropriate length is assembled to a conduit fixing device, in accordance with the manufacturer’s instructions and Figure 103.