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        what is EN/IEC 60068-2-75 IK hammer test and striking elements?
        From: BONAD  Date: 2024-03-15 15:01:07


        WHAT IS STANDARD EN/IEC 60068-2-75?

        HAMMER TEST

        Standard EN/IEC 60068 consists of 3 methods for testing the impact resistance of a test object against impacts with different severity levels. It serves to demonstrate the mechanical strength of a product and is intended primarily for the testing of electrical equipment. The test consists of a standardised test procedure with a defined number of impacts on the test object with a defined impact energy. Standard IEC 60068-2-75 covers impact energies from 0.14 J to 50 J.

        EN 60068-2-75 DIMENSIONS TABLE OF IMPACT ELEMENTS


        IK CODE

        IK00

        IK01

        IK02

        IK03

        IK04

        IK05

        IK06

        IK07

        IK08

        IK09

        IK10

        IK11

        Impact energy (Joule)

        *

        0.14

        0.20

        0.35

        0.50

        0.70

        1.00

        2.00

        5.00

        10.00

        20.00

        50.00

        Drop Heigth (mm)

        *

        56

        80

        140

        200

        280

        400

        400

        300

        200

        400

        500

        Mass (kg)

        *

        0.25

        0.25

        0.25

        0.25

        0.25

        0.25

        0.50

        1.70

        5.00

        5.00

        10.00

        Material

        *

        P1

        P1

        P1

        P1

        P1

        P1

        S2

        S2

        S2

        S2

        S2

        R (mm)

        *

        10

        10

        10

        10

        10

        10

        25

        25

        50

        50

        50

        D (mm)

        *

        18.5

        18.5

        18.5

        18.5

        18.5

        18.5

        35

        60

        80

        100

        125

        f (mm)

        *

        6.2

        6.2

        6.2

        6.2

        6.2

        6.2

        7

        10

        20

        20

        25

        r (mm)

        *

        6

        10

        17

        l (mm)

        *

        Must be adapted to the appropriate mass

        Swing hammer

        *

        Yes

        Yes

        Yes

        Yes

        Yes

        Yes

        Yes

        Yes

        Yes

        Yes

        Yes

        Spring hammer

        *

        Yes

        Yes

        Yes

        Yes

        Yes

        Yes

        No

        No

        No

        No

        No

        Free fall hammer

        *

        No

        No

        Yes

        Yes

        Yes

        Yes

        Yes

        Yes

        Yes

        Yes

        Yes

        Specifications from the standard EN 60068-2-75

        * not protected according to the standard
        1.Polyamide 85 ≤ HRR ≤100 Rockwell hardness according to ISO 2039/2
        2.Steel Fe 490-2 according to ISO 1052, Rockwell hardness HRE 80...85 according to ISO 6508



        Table 1 Striking element characteristics

         

        Energy / J

        ≤1

        ±10%

        2

        ±5%

        5

        ±5%

        10

        ±5%

        20

        ±5%

        50

        ±5%

        Equivalent Mass ±2%kg

        0.25(0.2)

        0.5

        1.7

        5

        5

        10

        Material

        Nylon

        Steel

        R/mm

        10

        25

        25

        50

        50

        50

        D/mm

        18.5(20)

        35

        60

        80

        100

        125

        f/mm

        6.2(10)

        7

        10

        20

        20

        25

        r/mm

        -

        -

        6

        -

        10

        17

        l/mm

        Adjusted according to the equivalent mass, see Appendix A

        Table 2 Height of Fall

         

        Energy /J

        0.14

        0.2

        (0.3)

        0.35

        (0.4)

        0.5

        0.7

        1

        2

        5

        10

        20

        50

        Equivalent Mass /kg

        0.25

        (0.2)

        0.25

        (0.2)

        0.25

        (0.2)

        (0.2)

        0.25

        0.25

        0.25

        0.5

        1.7

        5

        5

        10

         
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