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EN 50086-2-4 Testing Methods of Conduit systems for cable management

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EN 50086-2-4: Specification for conduit systems for cable management. Particular requirements. Conduit systems buried underground 


EN 50086-2-4 test method is applicable to the study of underground pipeline systems, including pipelines and pipeline accessories used in electrical installations or electronic communication systems for protecting and handling insulated wires and cables. it stipulated the compression test, falling weight impact test and bending test. 


Test Method and test equipment required: 

Compression Test

Samples shall be (200± 5) mm long.

The samples shall be compressed between two flat steel plates having minimum dimensions (100 x 200 x 15) mm, the length 200 mm being along the length of the sample. 

The samples shall be compressed at a rate of(15 +0,5) mm/min and the load recorded at the vertical deflection equivalent to 5 % of the average value of the original inside diameter of the sample.


Method: Apply constant‑rate displacement compression along the conduit’s major axis until one of three termination criteria is met:

Specimen fracture (force drop)

Predefined force limit reached

Predefined displacement limit reached

Purpose: Evaluate resistance to soil pressure, backfill loads, and vehicle‑induced ground pressure.


Universal Testing Machine (UTM): Capable of controlled displacement‑rate compression.


Hardened‑Steel Compression Platens: Parallel, flat anvils to apply uniform load.

EN 50086-2-4 Testing Methods of Conduit systems for cable management

Falling weight impact test

Mechanical impact test, which is a critical Type Test (a one-off test on a sample to validate design) for rigid conduits (both metallic and non-metallic) and their fittings. Its primary objective is to evaluate the conduit's ability to resist physical damage from external blows during installation and service life, thereby ensuring continued protection for the enclosed cables.


The test simulates an external mechanical impact, such as from a falling tool or accidental kick. A defined impact energy is delivered to a specimen of conduit mounted on a rigid support using a standardized striker (hammer). The specimen is then inspected for permanent deformation, cracks, or other damage.


EN 50086-2-4 Testing Methods of Conduit systems for cable management


Impact Testing Machine: Typically a pendulum hammer (like a Charpy hammer) or a guided falling-weight apparatus.


EN 50086-2-4 Testing Methods of Conduit systems for cable management

Striker (Hammer): The standard specifies a striker with a hemispherical steel face of radius (10 ± 0.1) mm. The mass of the hammer assembly is chosen to deliver the required impact energy.


Specimen Support: A rigid steel block or frame that securely clamps the conduit specimen, simulating a fixed installation (e.g., on a wall).


Measuring Apparatus: A depth gauge or calibrated mandrel to measure the residual deformation (indentation depth) and verify that the internal diameter has not been reduced beyond the permissible limit.

Bending testThe test is made on six samples having an appropriate length. Three samples are tested at room temperature, the other three are tested at(5+ 1) C.

For the test at -5 C, the samples shall be conditioned in a cold chamber for 2 hours.

The test apparatus consists of a device as shown below allowing to bend the conduit with a bending radius.

One of the ends of the samples shall be fixed on the test apparatus by means of an appropriate device. The sample is then bent to approximately 90o and hold.

During the test, the sample shall not flatten.

EN 50086-2-4 Testing Methods of Conduit systems for cable management

EN 50086-2-4 Testing Methods of Conduit systems for cable management


Related products and device

EN 50086-2-4 Universal Testing Machine

WDW Series Computer Control Electronic Universal Testing Machine made by UNITEDTEST range from 100N to 600KN load capacity with various models like single columns, table type, door frame type etc., is used to perform tension, compression, flexure/bending, shearing, peeling etc., test for metal and nonmetal specimens. Matched with UNITEDTEST design and produced various test fixture, like peel, flexure, puncture, tear, pneumatic grip, belt tension etc., this UTM can be used to almost all materials include but not limited to steel rod, rubber, steel wire, plastic, seat belt, textile, wood, panel etc., mechanical performance inspection.

EN 50086-2-4 compression test fixture

Electrical Conduit Compression test fixture to test compression properties of conduit systems for cable management according to DIN EN 61386-1. EN 50086-2-4 etc.,

EN 50086-2-4 falling weight impact testing machine

XJL-1000 Conduit pipe Drop (Free Falling) Weight Impact Tester is used to apply momentary impact force to test specimen of plastic, construction pipe etc., to measure the impact energy when specimen is broken. Also can be sued to compare two kinds material performance.

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