IEC 60531:1999 pdf download.Household electric thermal storage room heaters – Methods for measuring performance
1 Scope
This International Standard applies to electric storage heaters having a daily operating cycle
and intended to heat the room in which they are located.
NOTE 1 – This standard does not apply to heating appliances incorporated in the building structure, to central
heating systems or to floor heating installations.
NOTE 2 – If an appliance is intended to be operated as a storage heater or as a direct-acting room heater, it is also
tested in accordance with IEC 60675 [1 ]* .
This standard defines the main performance characteristics of storage heaters and specifies
methods for measuring these characteristics, for the information of users.
NOTE 3 – Information which may be of interest to the consumer is listed in annex D.
This standard does not specify values for performance characteristics.
NOTE 4 – This standard does not deal with:
safety requirements [2];
acoustical noise [3].
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 :1 995, Thermocouples – Part 1 : Reference tables
3 Definitions
For the purposes of this International Standard the following definitions apply.
3.1 storage heater
heater which stores heat obtained from electric energy by charging an accumulating core
before a heat demand in a room occurs, the heat being discharged at any time
3.2 minimum discharge condition
condition under which the appliance is operated, the means for controlling the heat output,
such as flaps and fans, being set at the lowest position
3.3 maximum discharge condition
condition under which the appliance is operated, the means for controlling the heat output,
such as flaps and fans, being set at the highest position, any boost position being ignored
NOTE – A boost position is a setting of a control for occasional use which results in a higher temporary fan speed.
3.4 average room temperature
arithmetic average of the maximum and minimum room temperatures for a setting of the
ambient temperature thermostat
3.5 ambient temperature thermostat
thermostat, sensitive to the room temperature and adjustable by the user, with at least the
sensing part incorporated in the heater
3.6 amplitude
difference between the maximum and the minimum room temperatures for a setting of the
ambient temperature thermostat
3.7 drift
difference between the average room temperatures obtained at different charge levels for a
setting of the ambient temperature thermostat
4 Classification
4.1 According to type
a) storage heater without a direct-acting heating function;
b) storage heater with a direct-acting function manually controlled;
c) storage heater with a direct-acting function automatically controlled.
4.2 ccording to the control of heat output
a) storage heater without heat output control;
b) storage heater with the heat output controlled by flaps or similar means;
c) storage heater with the heat output controlled by a fan.
5
List of measurements
a) dimensions and mass (clause 7);
b) charge acceptance (clause 8);
c) room heating capability (clause 9);
d) heat retention (clause 1 0);
e) temperature rises of air-outlet grilles and external surfaces (clause 1 1 );
f) temperature rises of surfaces surrounding the heater (clause 1 2);
g) stability of room temperature (clause 1 3);
h) direct-acting heating function (clause 1 4).
The results of these measurements may be given in a test report.
NOTE – An example of a test report form is shown in annex E.
6 General conditions for measurements
Before carrying out the tests, the storage heater is assembled and installed in accordance with the instructions.
NOTE – Except for tests of clause 1 4, supplementary elements which provide direct heating are endered inoperative.
Unless otherwise specified, measurements are made under the following conditions.
IEC 60531:1999 pdf download
