IEC 60675-2:2020 pdf download

IEC 60675-2:2020 pdf download.Household electric direct-acting room heaters – Methods for measuring performance
1 Scope
This clause of IEC 60675:1994 is applicable, with the following modification: Replace the first paragraph with the following content: This document applies to electric direct-acting room heaters . This document defines performance characteristics related to the radiant effect and specifies methods for measuring the radiant factor for the information of users. This document is used to measure the radiant factor of direct-acting room heaters .
2 Normative references
Replace Clause 2 of IEC 60675:1994 with the following content: The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60675:1994, Household electric direct-acting room heaters – Methods for measuring performance IEC 60675:1994/AMD1:1998 IEC 60675:1994/AMD2:2018 IEC 60675-3:2020, Household electric direct-acting room heaters – Methods for measuring performance – Part 3: Additional provisions for the measurement of radiation efficiency
3 Terms, definitions and symbols Replace
Clause 3 of IEC 60675:1994 with the following content: For the purposes of this document, the terms and definitions given in IEC 60675:1994, IEC 60675:1994/AMD1:1998, and IEC 60675-3:2020 and the following apply. ISO and IEC maintain terminological databases for use in standardization at the following addresses: IEC Electropedia: available at http://www.electropedia.org/ ISO Online browsing platform: available at http://www.iso.org/obp
3.101 radiant factor ratio of the measured infrared heat output to the measured total energy input, expressed in % Note 1 to entry: The radiant factor can be measured for panel heaters , convector heaters and radiant heaters 3.102 radiation efficiency ratio of the heat flow into a (testing) chamber by radiation exchange between an active radiant heating surface and the inner surfaces of the chamber to the nominal electric power of a heater inside this testing chamber Note 1 to entry: The radiant factor and the radiation efficiency are measured on different physical backgrounds and not comparable. 3.103 radiation reference plane flat surface bounded by the edge of the reflector or, in the case where radiant parts project below this edge of the reflector, the flat surface touching the outermost radiant part (see Figure 101)3.105 measuring plane plane parallel to the radiation reference plane and 100 mm ± 3 mm away from it 3.106 measuring grid regular arrangement in the measuring plane of straight lines running parallel and perpendicular to the longitudinal axis of the appliance with sufficient precision (±1 mm) Note 1 to entry: The nodal points of the measuring grid are located at the points of intersection of these lines (see Figure 102) such that the distance between all adjacent nodes points on these lines is equidistant in each direction. The size of the measuring plane is determined individually per heater by the provision that the radiant intensity taken at the borders of the measuring plane is smaller than 1 % of the maximum value.
4 Classification
This clause of IEC 60675:1994 is applicable.
5 List of measurements
This clause of IEC 60675:1994 and IEC 60675:1994/AMD1:1998 is applicable.
6 General conditions for measurements
This clause of IEC 60675:1994 and IEC 60675:1994/AMD1:1998 is applicable.
7 Dimensions, mass and means of connection to the supply
This clause of IEC 60675:1994 is applicable.
8 Temperature rises of air-outlet grilles and external surfaces
This clause of IEC 60675:1994 is applicable.
9 Temperature rises of surfaces surrounding the heater
This clause of IEC 60675:1994 is applicable.
10 Warming-up time of the heater
This clause of IEC 60675:1994 is applicable.
11 Stability of room temperature
This clause of IEC 60675:1994 and IEC 60675:1994/AMD1:1998 is applicable.