UL 61058-2-5-2020 pdf free download

UL 61058-2-5-2020 pdf free download.Switches for Appliances-Part 2-5 Particular Requirements for Change Over Selectors.
12.2.101 A change-over selector shall be capable of carrying specified rated currents, and shall also be capable of carrying currents under specified abnormal circuit conditions, such as those of short circuit, for a specified amount of time.
13 Mechanism
This clause of Part 1 is apphcable, except as follows.
Subclause 13.1 Is not applicable to change-over selectors classified according to 7.101 .1 and 7.101.3.
14 Protection against ingress of solid foreign objects, ingress of water and humid conditions
This dause of Part 1 is apphcable.
15 Insulation resistance and dielectric strength
This clause of Part 1 is applicable.
16 Heating
This clause of Part 1 is applicable, except as follows.
16.4 Heating test
Item I) does not apply.
17 Endurance
This clause of Part 1 is replaced by the following:
17.101 Mechanical endurance tests
Change-over selectors classified according to 7.4.1 to 7.4.6 of IEC 61058-1:2016 shall be submitted to a mechanical endurance test. The thermal and mechanical conditions are according to 17.3 and 17.4 of IEC 61058-1 -1 :2016. During the test no electrical load is applied to the change-over selectors.
For change-over selectors with locking means (classified according to 7.101.1). the locking mechanism is also submitted to the mechanical endurance test. This test, however, may be made separately, and separate test specimens may be used.
Change-over selectors classified according to 7.4.7, 7.4.8 of IEC 61058-1:2016 and 7.101.1 of this document are submitted to a mechanical endurance test, and following that, to a temperature cycling test according to 11.5.
After the tests, the switch is deemed to comply if the conditions according to 17.6 of IEC 61058-1-1:2016
are satisfied.
NOTE For change-over selectors wth screwless terminals, this test Is carned out dunng the tests of 11.5.
17.1 02 Abnormal operation
Unlocked change-over selectors (classified according to 7.101.2) shall have sufficient switching capacity under abnormal operation.
For unlocked change-over selectors intended for both AC and DC, compliance is checked by subjecting one set of test specimens to 10 cycles of operation at rated load having a cos ip = 0,6, and another set 01 test specimens to 10 cycles of operation at DC rated non inductive load. Other change-over selectors are tested with the relevant nature of supply.
The unlocked change-over selectors are actuated by hand at an ambient temperature of 25 °C ± 10 °C. After the test, the switch is deemed to comply if:
— all actions function as declared;
— the temperature rise at the terminals does not exceed 55 K when tested In accordance with 16.4, with the exception that the temperature rise test at the terminals is carried out at rated current.
18 Mechanical strength
This clause of Part 1 is applicable.
19 Screws, current-carrying parts and connections
This clause of Part 1 is applicable.
20 Clearances, creepage distances, solid insulation and coatings of rigid printed board assemblies
This clause of Part 1 is applicable.UL 61058-2-5-2020 pdf free download.