UL 1083:2002 pdf download – Household Electric Skillets and Frying-Type Appliances.
27.7 Normally a sample will be carried through the complete leakage current test program as covered by
27.6 without inlerrupton for other tests. With the concurrence of those concerned, the leakage current
tests may be interrupted for the purpose of conducting other non-destructive tests.
28 OperatIonal Tests
28.1 Operation of an appliance while simulating anticipated conditions of use shall not increase the risk of fire, electric shock, or injury to persons
28.2 In conducting the test, the conditions mentioned in the manufacturer’s instructions, including cleaning, maintenance, and the use of accessories may be Included or omitted so as to simulate reasonably foreseeable achons of the user.
29 Calibration Tests of Probe-Type Temperature Controls
29.1 The maximum temperature at the center of the underside of the appliance cooking surface shall not be higher than 300°C (572°F) either before or after a probe-type control is dropped in accordance with 29.2. The average of the maximum and minimum temperatures shall not be higher than 260°C (500°F) either before or after the dropping.
29.2 Six samples of each control are to be calibrated, and the maximum or minimum temperature in any
case is to be the average of at least five temperature readings taken dunng the cycling of the control after
a stabilized cycling pattern has been established. After the initial calibration, each control, while still
heated, is to be dropped five times from a height of 3 ft (0.91 m) onto a hardwood surface, following which
the control is to be recalibrated.
29.3 The normal temperature test is to be conducted:
a) Employing the sample probe-type control that results in the highest center temperature before the drop test. and also, employing the sample probe-type control that results in the highest center temperature after the drop test, if that temperature is higher than the highest temperature obtained before the drop test, or
b) Employing the sample probe-type control that results in the highest center temperature after the drop test, if that temperature is higher than the highest temperature obtained before the drop test. However, If the highest center temperature is obtained before the drop test, a sample probe-type control that is calibrated to provide the highest center temperature is to be employed.
30 Mechanical Abuse
30.1 A detachable power-supply cord employing a magnetic appliance coupler that complies with the requirements of UL 498 or UL 817 need not comply with 302 and 303. A detachable powersupply cord set employing a magnetic appliance coupler and manufactured specifically for use with a deep-fat fryer, cookeriryer o- fondue need not comply with the Mechanical Endurance Test in UL 498 or UL 817 (though it must comply with all other applicable requirements in UL 498 or UL 817) povided that it complies with 30.2 and 30.3.
30.2 Each of six representative detachable powersupply cords employing a magnetic appliance coupler used in deep fat fryers, cooker.lryers and fondues is to be placed in a full-draft circulating-air oven for 24 hours at 10°C (18°F) higher than the maximum temperature on the magnetic appliance coupler, as measured under normal operating conditions, but not less than 70°C (158°F). After the conditioning and allowing to cool to room temperature, each magnetic appliance coupler Is to be examined for cracking, shrinkage or warping to the extent that the magnebc appliance coupler remains fully functional.
30.3 Each of the representative power-supply cords is to be bundled with the coupler under die cord and then allowed to drop as an assembly freely from a height of 3 feet (0.91 m) onto a hardwood surface (consisting of a layer of nominally 1-inch thick tongue-and-groove oak floonng mounted on two layers of 3/4-inch plywood) for a total 01125 drops, such that the coupler is impacted at various locations. Upon completion of the first 50 drops, each representative power-supply cord shall.