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LCS Notice Letter - IEC 60884-2-5
Author.
LCS
Source:
Post time:
2024-05-30
Dear Mr./Ms.
This letter is come from LCS testing.
People's lives are closely related to electronic and electrical equipment, and more and more people's lives, work, and entertainment cannot be separated from mobile phones, computers, televisions, etc. Once there is a power outage or network outage, it can be very confusing and feel like something has been lost.
Sometimes it's not the helplessness of losing power, but the annoyance of having electricity but not being able to use it. For example, when traveling abroad, I realize how regretful it is that the electrical plug I bring cannot be used locally.
So at this point, the role of travel adaptor is reflected, and with the improvement of people's living standards, more and more people are traveling abroad, and the market share of travel adaptor is also increasing.
So what are the additional requirements for a travel adaptor.
World plug types
6 Ratings
The rated current of the travel adaptor shall be the lowest value of the following:
– the lowest rated current of the plug type(s) of the plug part; or
– the highest rated current of the plug type(s) which can be inserted into the travel adaptors;
– the rated current of the incorporated overcurrent protective device, if any.
Explanation: The rated current of the travel adapter is the minimum current value under three conditions
8 Marking
The manufacturer shall indicate on the travel adaptor and/or in the documentation accompanying the travel adaptor that the travel adaptor is for temporary use only and that it shall not be used permanently.
Explanation: The manufacturer is obliged to indicate in the instruction manual that the travel adapter is for temporary use only and that it shall not be used permanently.
9 Checking of dimensions
For travel adaptors the plug part and the socket-outlet part shall comply with the national
specifications and standard sheets of the countries for which the manufacturer declares
compatibility.
For travel adaptors allowing the connection of plugs of different national systems or insertion
into different national systems the following deviations may be allowed if safety is not
impaired:
– overlapping entry holes on the socket-outlet part,
– plugs combining different national standards on the plug part,
– outer body dimensions.
NOTE 1 See also 9.3 for additional information about deviations from the dimensions specified in the standard
sheets.
NOTE 2 In the following countries travel adaptors with deviations from the national specifications and standard
sheets are allowed: CH, ES, FR, ZA.
NOTE 3 In the following countries restrictions to the overlapping entry holes are applied: AU, CN, DK, IT, MY.
NOTE 4 In the following countries travel adaptors with deviations from the national specifications and standard
sheets are not allowed: CA.
Travel adaptors allowing temporary connection of a plug with a socket-outlet having a higher
voltage rating are allowed, provided that the manufacturer gives information for the safe use
directly on the travel adaptor, for example “DOES NOT CONVERT VOLTAGE”.
Explanation:
Except some special countries, if travel adaptor meets the requirements for protection against electricl shock, deviations may be allowed.
In the Australia restrictions to the overlapping entry holes are applied.
A socket portion may incorporate multiple aperture sets. However, only two aperture sets shall have conjoining edges. For aperture sets incorporating conjoining edges, only two active apertures, two neutral apertures and where present, two earth apertures having conjoining edges shall be allowed (see AS/NZS 3122: 2021 Appendix A Figure A.1).
14 Construction of travel adaptors
The socket-outlet part of a travel adaptor may have one or more socket-outlet type(s), but it
shall accommodate only one plug at a time.
The socket-outlet part(s) of travel adaptors shall be provided with shutters.
For travel adaptors comprising several parts, the use of the travel adaptor shall remain safe
for all combinations of parts.
Live parts of any detachable plug part, when not attached to the relevant socket-outlet part of
the travel adaptor, shall not be accessible when inserted into the relevant socket-outlet.
Compliance is checked by inspections and, in case of doubt, by applying test probe 13
according to IEC 61032 with a force not exceeding 5 N, in every possible position, with the
plug part in full engagement with a socket-outlet. The test probe shall not touch live parts.
The plug part of a travel adaptor may have one or several plug type(s), but only one plug can
be electrically connected at a time.
There shall be no electrical connection between different pin combinations, if any, when one
of them is ready for use. This shall additionally be tested with the pin combinations (use and
unused, if any) in intermediate positions.
Explanation:
Travel adapters with multiple outlet types can only accommodate one plug insertion at a time, it is prohibited to insert two or more plugs at the same time.
Shutters must be provided in the socket portion of the travel adapt.
Test probe 13 according to IEC 61032
Travel adaptors shall not have any socket-outlet part which permits the insertion of a plug
with current rating exceeding 1,25 times the lowest rated current of the plug types(s) of the
plug part of the travel adaptor, unless the travel adaptor is provided with an overcurrent
protective device rated less than or equal to the rated current of the plug part.
Explanation:
For example, if the minimum current of the plug part is 10A, the maximum connection of the plug of the socket part is allowed to be 12.5A, unless there is an overcurrent protection device
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