TM013
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Issue A
HoMedicsEMEATest Method
TM:013
Date:12/7/11
Author:S Clark
Title:PerformanceTesting of Kettles
1.0Scope
This testing applies to all kettles designed for domestic use. It applies to all market sectors and to both jug and traditional format kettles in metal, glass and plastic construction. It does not apply to continuous water heating devices such as air pots.
This test method applies to the performance of the kettle and does not cover the endurance testing which is covered by a separate test method (TM0014)
2.0 Method
2.1 Power Check
To measure the correct power of a kettle, a calibrated power analyser is required. If this is not available then separate measurements of voltage and power can be used. As kettles will be predominantly resistive with very little reactive power, then wattage can be calculated by measuring current and calculating power.
2.2 Capacity Check
Capacity accuracy should be measured by filling the kettle with water up to the minimum and maximum marked levels and weighing the water. The recorded values should be compared against the specification.
2.3 Turn-Off Time Test
Fill the cold kettle to the minimum level with water from the cold tap and turn on. When rapid boiling starts, start timing and record the time taken for the kettle to turn off.
2.4 Combined Reset and Spitting Test
Fill the cold kettle to the maximum mark with water from the cold tap and turn on. As soon as the kettle turns off by the steam stat, start timing and remove the mains supply by either turning off at the plug or switching off at the socket. Then continue to press and release the kettle steam stat switch until it latches. Record this ‘first reset’ time. Return mains supply to the kettle and repeat this process to record the second, third and fourth reset times.
During this test it should be noted whether any water is ejected from the spout.
3.0 Acceptance Criteria
3.1 Power check
Measured power should be within 10% of rated for all price points.
3.2 Capacity check
Measured capacity should be within 10% of rated for all price points.
3.3 Turn off Time Test
The turn off time must be less than :
OPP: 15s
MPP: 10s
HPP: 10s
If no specific price point is stated then MPP should be assumed.
3.4 Combined Reset and Spitting Test
Reset times should be less than:
1st reset / 2nd reset / 3rd reset / 4th resetOPP / 10s / 15s / 20s / 30s
MPP / 5s / 10s / 15s / 20s
HPP / 5s / 5s / 10s / 15s
There should be no water ejected from the spout at any time for any price point.