Moisture Resistance Test; Humidity; Water Spillage - Century UL 1086 Manual

Household trash compactors

Table of Contents

38.2 If internal wiring or connections are subject to motion during normal use of the appliance – for

example, a wire running from the stationary portion of the enclosure to the access door, or a

brush-and-slip ring connection of a cord reel – the parts involved are to be moved through three or more

cycles of operation while the test potential is being applied.

38.3 To determine if an appliance complies with the requirement in 38.1, the appliance is to be tested

using a 500-volt-ampere or larger capacity transformer, the output voltage of which can be varied. The

applied potential is to be increased from zero to the required test value, and is to be held at that value for

1 minute. The increase in potential is to be at a substantially uniform rate and as rapid as is consistent

with correct indication of its value by a voltmeter.

39 Moisture Resistance Test

39.1.1 A cord-connected appliance rated for a nominal 240 volts or less supply shall comply with the

requirements for Leakage Current Test, Section 33, following conditioning for 48 hours in moist air having

a relative humidity of 88 ±2 percent at a room temperature of 32 ±2°C (90 ±4°F).

a) The appliance is to be at a temperature just above the test chamber temperature when it is

placed in the humidity chamber.

b) The appliance is to remain in the humidity chamber for 48 hours.

c) Following this exposure, while still in the test chamber, the sample is to be tested unenergized

as indicated in 33.5(a).

d) The sample is then to be tested energized as indicated in 33.5 (b) and (c), except that the test

may be discontinued when the leakage current has stabilized or decreased. This test may be

conducted in the humidity chamber or immediately after the sample has been removed from the

humidity chamber.

39.2.1 To determine whether a small quantity of liquid that may be placed in the waste receptacle or

spilled or dripped onto the top, the front, the door, or the door assembly of an appliance will result in a risk

of electric shock when the appliance is conditioned as described in 39.2.3:

a) No obvious wetting that will adversely affect any electrical component shall be likely to occur

during any conditioning, see 39.2.2; and

b) The appliance:

1) Shall comply with the dielectric voltage-withstand requirements in 38.1; and

2) Shall, when evaluated using the method described in 33.3 – 33.6, not have a leakage

current of more than 5.0 milliamperes.

39.2.2 Obvious wetting signiﬁes wetting by a stream, spray, or dripping of water on the component that

will be repeated during each test, but does not signify wetting by random drops of water that may wet the

component by chance.

HOUSEHOLD TRASH COMPACTORS - UL 1086

FEBRUARY 1, 1996

Table of Contents