Iec 60335 Wikipedia
Handling flammable refrigerants needs additional skills—and this is reflected in guidance which varies from one country to another. In the USA, it is highly recommended, in Europe, it is mandatory that flammable refrigerant systems are only serviced by technicians who have been specially trained. Some offer dedicated certification programs. For more information on flammable refrigerant best practice and training, visit our refrigerant transition center.
Iec 60335 wikipedia.org
This part is to be used in conjunction with the appropriate part 2 of IEC 60335. The parts 2 contain clauses to supplement or modify the corresponding clauses in this part to provide the relevant requirements for each type of appliance. This sixth edition of IEC 60335-1 is only to be used in conjunction with parts 2 that have been established on the basis of this edition.
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106); - the definition of normal operation has been changed (3. 9); - the method of carrying out the heating test has been changed (11. 7); - the requirement in 20. 114 has been modified to align with the test specification; - some notes in Subclauses 5. 2, 11. 107, 11. 110, 11. 116, 20. 103, 20. 107, 20. 108, 20. 117, 20. 119, 25. 14, and Annex AA were converted to normative text. This part 2 is to be used in conjunction with the latest edition of IEC 60335-1 and its amendments. It was established on the basis of the fifth edition (2010) of that standard. The attention of National Committees is drawn to the fact that equipment manufacturers and testing organizations may need a transitional period following publication of a new, amended or revised IEC publication in which to make products in accordance with the new requirements and to equip themselves for conducting new or revised tests. It is the recommendation of the committee that the content of this publication be adopted for implementation nationally not earlier than 12 months or later than 36 months from the date of its publication.
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(Right) Smart toaster with LCD touch screen. Harmonization in Europe and North America In North America, IEC 60335-1 has been used as the basis for a tri-national standard between the United States (UL 60335-1), Canada (CAN/CSA-C22. 2 No. 60335-1), and Mexico (NMX-J-521/1-ANCE). In the US, UL 60335-1, which is in its 6 th edition, is harmonized to IEC 60335-1 as part of its participation in the HOUS category of the IECEE CB Scheme. However, the United States does not recognize all of the part 2 standards. The part 2 requirements take precedence over the general requirements laid out in part 1. In Europe the harmonized standard is EN 60335-1 and defines how appliances may comply with European directives, such as the low voltage directive. Unlike the United States, the EU recognizes most, if not all, of the 100+ part 2 standards related to specific products. Impact on Power Supply Design When assessing a new standard, it is helpful to compare the requirements to one that is already familiar.
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Perhaps the most common product category for external adapters and power supplies is that of information and technology equipment (ITE). This category, which was once standardized to IEC 60950, and now IEC 62368, tends to be the benchmark to which most other power supply standards are compared. Below we will compare some common requirements that can impact the design of a power supply. Creepage and Clearance One of the first differences is in the creepage and clearance distances. Creepage is the shortest path between two conductive parts along the surface of the insulation (Figure 2). Clearance is the distance between two conductive parts through air (Figure 3). The requirement for each is dependent on the working voltage and insulation type (basic vs reinforced). In many cases the requirements are the same, but in certain instances the requirements may be more or less stringent. For example, IEC 60950-1 requires 6. 4 mm of creepage for reinforced insulation when the working voltage is between 250 V and 300 V, whereas IEC 60335-1, for the same conditions, requires 8.
What is the difference between IEC 60335-1 and EN 60335-1? - Quora
Wednesday, 10-Mar-21 22:27:07 UTC