IEC 60675:1998 pdf download – Household electric direct-acting room heaters -Methods for measuring performance

IEC 60675:1998 pdf download – Household electric direct-acting room heaters -Methods for measuring performance.
It does not apply to:
— thermal-storage room heaters (IEC 60531);
– heating appliances incorporated in the building structure:
— central heating systems;
— heaters connected to an air duct:
— wall-paper. carpets or drapes incorporating flexible heating elements.
This standard defines the main performance characteristics of direct-acting room heaters
and specifies methods for measuring these characteristics, for the information of users.
This standard does not specify values for performance characteristics,
NOTE – This standard do. not deal with
— salety requirenlents (IEC 60335-2-30):
— acoustical noise ot ten I.atets PEC 60704-2-21,
2 Normative reference
The following normative document contains provisions which, through reference In this text. constitute provisions of this standard. At the time of publication, the edition indicated was valid. All normative documents are subject to revision, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent edition of the normative document indicated below. Members of IEC and ISO maintain registers of currently valid International Standards.
IEC 60584-1:1977, Thermocouples — Part 1: Reference tables.
NOTE — Intormative relerences (bi6l.ograAiy) are given m annex D
3 Definitions
For the purposes 01 this standard. the following definitions apply:
3.1
direct-acting room heater
appliance which converts electrical energy into heat alter a demand for heat has arisen in a room and transfers this heat to the room without delay
NOTE — In this standard. direct-acting room heale is relerred to as a healer
panel heater
heater in which the temperature rise f all surfaces in contact with the circulating air does nQt exceed 75 K in normal use
NOTE I – Panel heaters may be oil tilled
NOTE 2’ Panel he.t.ra may be in column form.
3-3
convector heater
heater in which the temperature rise of at least one non-visible part in contact with the circulating air exceeds 75 K in normal use. The air is discharged through one or more outlets by natural convection
NOTE — NDflviSible part’ means that the part cannot be seen from a point situated 2 in In front of the heater and I.E m above th, 1100, when the heel,, Is installed
fan heater
heater In which the movement of air through It Is accelerated by a fan
3.5
radiant heater
heater in which the temperature rise of at least one visible surface exceeds 75 K in normal use NOTE – This visble surface nay be seen through solid material which is transparent 10 heal radiation. Materials such as quartz glass are considered to be transparent to heal radiation, while ordinary glass is no4
3.6
vIsIbly glowing radiant heater
radiant heater in which the heating element is visible from the outside of the heater and has a temperature of at least 650 ‘C in normal use
ambient temperature thermostat
thermostat, sensitive to the room temperature and adjustable by the user, with at least the sensing part incorporated in the heater
3.8
programmer
control for regulating the room temperature according to a programme preset by the user and which is incorporated in the heater
3.9
set-back device
device which allows the room temperature to be maintained at a lower value than the pre-set temperature without changing the setting of the ambient temperature thermostat
3.10
frost protection means
means which allows the room temperature to be maintained at a value of 7 °C ± 3 °C
NOTE — The means may be a par1cuIar setting of the ambient temperature thermostat.
rated power Input
power input assigned to the heater by the manufacturer
3.12
energy ratio
ratio between the energy consumption during a representative period of operation and the product of the rated power Input and this period
3.13
average room temperature
the arithmetic average of the maximum and minimum room temperatures for a setting of the ambient temperature thermostat
3.14
amplitude
difference between the maximum and the minimum room temperatures for a setting of the ambient temperature thermostat
3.15
drift
difference between the average room temperatures obtained at different energy ratios for a setting of the ambient temperature thermostat
3.16
usable power
average power input consumed by the heater.