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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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