UL 1030-2015 pdf download

UL 1030-2015 pdf download.Sheathed Heating Elements.
15.5 For the one second single-phase and direct-current tests, the element need not be preheated. The potential is to be applied while the heating element is cold and de-energized.
15.6 For the one second quadrature test, me test potential is to be applied by the method illustrated in Figure 10.1. The element need not be preheated. The test potential is to be applied while the element Is energized
15.7 The test equipment is to include a visible indication of application of the test potential and an indication of breakdown that is audible or visible or both, In the event of breakdown, manual resetting of an external switch is to be required, or an automatic reject of the unit under test is to result. Other arrangements may be considered and accepted when found to achieve the results contemplated. A 500-volt-ampere or larger capacity transformer need not be used in tests by the manufacturer when the transfomier is provided with a voltmeter to measure directly the applied output potential.
RATiNG
16 Details
16.1 A heating element shall be rated in volts and volt-amperes or watts. The voltage rating shall be any
appropriate single voltage or range of voltage such as 100— 120, 208, 220— 240. 257— 277, 416. 440 — 480, 550, 575, and 600.
MARKING
17 Details
17.1 A heating element shall be legibly and permanently marked with:
a) The manufacturer’s name, trade name, or trademark or other descriptive marking by which
the organization responsible for the heating element may be identified;
b) A distinctive ‘catalog” or “model” number cx the equivalent:
C) The electrical rating; and
d) The date or other dating period of manufacture not exceeding any three consecutive months.
Exception No. 1: The manufacturer’s identification may be in a traceable code when the heating element is identified by the brand or trademark owned by a private labeler.
Exception No. 2: The date of manufacture may be abbreviated: or may be in a nationally accepted conventional code or in a code affirmed by the manufacturer, provided that the code:
a) Does not repeat in less than 20 years. and
b) Does no, require reference to the production records of the manufacturer to determine when the heating element was manufactured.
Exception No. 3: The electrical rating may be ormhed when a separate identifying destgnation is assigned for each rating.
172 A heating element intended for use in a household or similar cod•oonnected appliance, see 12.1, or the container in which the element is shipped shall be marked to indicate such use.
17.3 A heating element intended exclusively for use in a household electric range, oven, or surface assembly — see the Exception 10 12.1 — or me container in which such an element Is shipped — shall be marked with the word CAUTION’ and the following or the equivalent: Fo use only wi a household electric range, oven, or surface assembly where the exposed metal parts are connected to the neutral at the factory or provided with a tour-conductor cord at the factory. Use in any other cord-connected household appliance may result in a risk of electric shock.
17.4 When a manufacturer produces or assembles heating elements at more than one factory, each finished heating element shall have a distinctive marking, which may be in code, by which it may be identified as the product of a particular factory.
17.5 When the sheathed portion of the heating element is marked, the marking shall not be located on the outside diameter of a bend, and me element shall comply with the performance requirements in the standard after the marking is applied.
17.6 A heating element not intended for use in free air, or me container in which the element is shipped, shall be marked with the word CAUTION and the specific use for which it is intended, such as for use only submersed in water or For use only in a metal heat sink.
17,7 The marking specified in 17.2, 17.3, and 17.6 shall appear on the heating element or shipping container. The marking may also be included in the installation instructions but shalt be separated in format from the installation instructions.