En 60335 Pdf Italiano [UPDATED] Download

UL 60335-2-40 3rd Edition is an ANSI/SCC approved standard covering electrical heat pumps, air-conditioners and dehumidifiers. Further, it is a binational standard (U.S. and Canada) that is based on the international IEC 60335-2-40 standard. IEC 60335-2-40 is currently being used as the basis for the design, evaluation, testing and certification of HVAC equipment using Low GWP refrigerants in places like Europe. Overall, UL 60335-2-40 has adopted more conservative safety requirements than the IEC standard to address the unique product usage of the North American market.

One of the risks associated with UL 60335-2-40 equipment is refrigerant leakage. An integral component to mitigate this risk is a refrigerant leak detection system. Refrigerant leak detectors that sense loss of pressure are required for all systems in the occupied space exceeding a prescribed refrigerant charge limit, which typically consists of approximately four pounds of refrigerant for most permanently installed applications.

En 60335 Pdf Italiano Download

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In addition, UL 60335-2-40 requires that refrigerant charge limits be based on the minimum occupied volume of the room where the equipment is expected to be used. This charge limit requirement also includes a safety factor of four to ensure any leaked refrigerant is diluted to well below the lower flammability limit (LFL), based on room size. UL 60335-2-40 also requires appliances to be free of potential internal ignition sources to mitigate the risk of fire due to a leak.

IEC 60335-1, Ed. 6 provides technical changes and new safety requirements in many of its sections. Among other measures, it extends the software safety requirements from Annex R of its edition 5 to deal with new safety risks related to unauthorized access and transmission failures that arise when household and similar appliances connect to public networks, and it demands the adoption of cryptographic techniques.

Edition 6 of IEC 60335-1 is only to be used in conjunction with Parts 2 that have been established based on this new edition. However, manufacturers may still have to use older versions of the standard if the adoption process and publication of national standards is still ongoing, with no mandatory effective dates published yet.

After identifying that Annex U applies, software in household and similar appliances shall implement all the necessary measures to control fault/error conditions related to remote communication, including protection of safety-relevant data, integrity against corruption and wrong or incomplete communication. Annex U does not limit communication protocols/technologies used by appliances to establish remote communication. However, the selected security protocol implemented to fulfill Annex U requirements shall be verified and validated as required by IEC 60335-1.

In line with IEC60335-1, GB4706.1 22.3 test requirements. Compliance is determined by inserting the pin of the appliance under test into a socket without a ground contact in normal use. There is a horizontal pivot 8mm after the socket insertion surface and in the plane where these contact sleeves are located. This distance is determined by A displacement sensor A with an accuracy of at least 0.1mm. The insertion surface is kept in the vertical plane, and the torque here is tested. The test range is 0-1Nm and the accuracy is at least 0.01Nm. (The torque to hold the socket itself in the vertical plane is not included in the test value) A 50N tension can be applied to each pin in the longitudinal direction of the pin for 1min. The displacement of pins can be measured by displacement sensor A. A torque of 0.4Nm can be applied to each pin in each direction and the test time can be set to display the actual applied torque value with an accuracy of at least 0.01Nm

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In the United States, UL 60335-1 covers the General Requirements for electrical/electronic household products. This harmonized standard is part of the U.S. NRTL program. The U.S. participates in the HOUS category of the international IECEE CB Scheme for IEC 60335-1.

The fifth edition of UL 60335-1 is part of a tri-national standard, along with CAN/CSA-C22.2 No. 60335-1-11, 1st edition (Canada) and NMX-J-521/1-ANCE, 1st edition (Mexico). The tri-national standard was published October 31, 2011 and is based on IEC 60335-1, Edition 4.2:2006.

In regards to Part 2 particular standards, the U.S. only recognizes IEC 60335-2-3, 5th edition (Electric Irons) for the CB Scheme. There is a U.S. version of this standard: UL 60335-2-3. There are a number of other published -2s, but they need to be harmonized before they are suitable for the CB Scheme. These include UL 30335-2-8 (Shavers & Hair Clippers), UL 30335-2-34 (Motor-Compressors), and UL 30335-2-40 (Heat Pumps, A/Cs, and Dehumidifiers).

This new international standard, officially known as IEC 60335-2-89, provides safety requirements for commercial refrigerating appliances and contains positive improvements to the previous version, which blocked the use of climate-friendly flammable refrigerants, such as propane, through tight limits to the allowed charge size.

The initial result of the vote was presented as negative due to a miscalculation of votes. In view of this, ECOS and other stakeholders issued a request to the IEC to review one of the votes cast, which was not compliant with the IEC procedural rules, to recount the result and correct it. Consequently, the IEC 60335-2-89 standard was eventually approved at the beginning of May 2019, giving a happy end to a rather long debate.

IEC 60335-2-40 was approved at the end of April and is expected to be published by the end of June. This standard also applies to electric heat pumps, air conditioners and room dehumidifiers that contain flammable refrigerants. It takes into account refrigerants corresponding to class A2 or A3 according to ANSI/ASHRAE 34-2001 (ISO 817). Among other things, this has an impact on refrigerant quantities: for example, the limit for propane (R290) has been raised from 340 g to 988 g for a standard split system.

An IEC standard for skin care beauty appliances has recently been published, IEC 60335-2-115:2021. This mandatory safety standard is not country-specific; however, it will be implemented in all countries that are members of the International Electrotechnical Commission for Electrical Equipment (IECEE). be457b7860