AS NZS 61058.1.1:2021 – Switches for appliances Part 1.1: Requirements for mechanical switches (IEC 61058-1-1:2016(ED.1.0) MoOD)
AS NZS 61058.1.1:2021 – Switches for appliances Part 1.1: Requirements for mechanical switches (IEC 61058-1-1:2016(ED.1.0) MoOD).
17.3 Thermal conditions
17.3.1 For switches according to 7.3.2, during the tests in 17.5.4 (TC4) all parts are
exposed to temperatures as follows:
— For the first half of the test period at maximum air temperature (T ÷5/0) C.
— For the second half of the test period at 25 C ± 10 C or at the minimum air temperature (T 01-5) C if T is less than 0 C,
173.2 For switches according to 7.3.3. dunng the tests in 17.5.4 (TC4). those parts that are declared for use at 0 C to 55 C shall be exposed to a temperature within this range for the complete test period.
— For the first half of the test period, the air temperature of the remainder of the switch shall. be maintained at the maximum air temperature (T ÷510) C.
— For the second half of the test period the tests are carried out at 25 C ± 10 °C or at the minimum air temperature (T 0/-5) C if T is less than 0 C.
17.3,3 For switches according to 7.3.1. during the tests In 17.5.4 (TC4). the switch shall be exposed to an air temperature of 25 C ± 10 C.
17.4 Actuating conditions
17.4.1 The switches are operated by means of their actuating member either manually or by an appropriate apparatus which is arranged to simulate normal actuation.
The operating speed for the operating cycles shall be as follows:
For the tests of mechanical switches:
a) for very Slow speed:
— approximately I /s for rotary actuation;
– approxámately 0,5 mm/s for linear actuation.
b) for slow speed:
— approximately 9°/s for rotary actuations at an angle of operation s45°;
– approximately 18°/s for rotary actuations at an angle of operation ‘45•;
— approximately 20 mm/s to 25 mm/s for linear actuat,ons.
C) for high speed, the actuation member shall be actuated by hand as fast as possible or
using the accelerated speed.
d) for accelerated speed:
– approximately 45 °/s for rotary actuations at an angle of operation i45°;
– approximately 90°/s for rotary actuations at an angle of operation -45°;
— approximately 80 mm/s for linear actuations.
17.4.2 For biased switches, the actuating member shall be moved to the limit of travel of the opposite position.
17.4.3 During the testing, care is taken that the test apparatus drives the actuating member, without impeding the designed movements of the switch.
17.4.4 During the accelerated speed test
a) care shall be taken to ensure that the test apparatus allows the actuating member to operate freely, so that there is no interference with the normal action of the mechanism;
b) for switches designed for a rotary actuation where the movement is not limited in either direction, three-quarters of the total number of operating cycles In each test shall be made In a clockwise direction, and one-quarter in an anti-clockwise direction;
c) for switches which are designed for rotary actuation in one direction only, the test shall be performed ,n the designed direction, provided that it is not possible to rotate the actuating member in the reverse direction using the torques necessary for actuation in the designed direction;
d) additional lubrication shall not be applied during these tests;
e) the forces applied to the end stops of the actuating members shall not exceed the declared values (if any) for rotary and linear actuation. The declared full travel of the actuating member (if any) shall be applied during these tests.
17.4.5 So far as the design allows, switches are operated with the following conditions.