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Standards Corner - Appliance Advisor Issue 2 2019

Standards updates for Issue 2 of Appliance Advisor

Standards Corner
June 19, 2019

Standards Information

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STP 325 – Door, Drapery, Gate, Louver, and Window Operators and Systems

A set of 11 proposals were circulated for ballot Q3 2018. Nine of the topics reached consensus, with six topics receiving comments, and moving to recirculation. The recirculation work area opened in CSDS on April 19, 2019, closing May 20.

STP 484 – Dehumidifiers and Room Air Conditioners

A new proposal topic covering a revision to the dielectric strength
test requirements was circulated for Standards Technical Panel (STP) ballot in April 2019. It reached consensus without any comments and will be published in May.

STP 507 — Electric Fans

The task group formed to continue work on a proposal submitted from the U.S. Consumer Product Safety
Commission (CPSC) to include a new thermal condition performance test for unattended fans, continues to make
progress. CPSC is leading the task group (TG), which completed development of a proposal for consideration by the
STP and the public. The proposal was discussed at the STP 507 Meeting held Feb. 26, 2019, in Clearwater Beach, Florida. As a result of the meeting, the TG is working to further refine the proposal based on input received during the meeting. Once the TG refines the proposal, it will be circulated for preliminary STP and public review
during Q2 2019.

STP 745 — Electric Tools

The first editions of the Standard for Electric Motor-Operated Hand-Held Tools, Transportable Tools and Lawn and Garden Machinery – Safety – Part 3-12: Particular Requirements for Transportable Threading Machines, UL 62841-3-12, and the Standard for Electric Motor-Operated Hand-Held Tools, Transportable Tools and Lawn and Garden Machinery – Safety – Part 3-14: Particular Requirements for Transportable Drain Cleaners, UL 62841- 3-14 were published April 5, 2019.

STP 858 – Household Electric Ranges

Two new proposals, including an update to the surface element turnoff requirements and a clarification for the off marking and heat setting requirement, were posted for ballot Q4
2018. Both topics reached consensus, with several comments received on the surface element topic; that topic was
recirculated — opened in CSDS — April 19, 2019, closing May 20.

A New Joint Task Group Has Been Formed

A joint task group (JTG) has been formed to develop requirements that address the potential hazards associated with user interface (UI)/actuators/components/sensors that are intended for use on household electric and gas cooktops, either independently or as a system. Using a system approach, the proposed requirements are intended to focus on the interoperability and interaction of these devices with the end-use appliance, so there is not an increased risk of fire when these devices are used with the appliance. Examples of devices include, but are not limited to, after-market appliance controls, voice-operated controls and remote. software updates using the UL 5500 requirements.

STP 982 – Motor-Operated Household Food Preparing Machines

A series of nine new proposal topics were posted for STP ballot in Q3 and Q4 2018. Topics address requirements
related to the following:

  • Clarification of applicability of self-holding protector abnormal operation test
  • Smart-enabled machines
  • Vacuum blender
  • Feed opening accessibility
  • Electric knife unintentional operation
  • Interlocked blender cover opening equivalent area
  • Food processors with momentary contact switch
  • Input test
  • Soup-making blenders

Comments received during STP ballot of the above topics were discussed at the STP 982 meeting held April 25, 2019, at UL’s Northbrook office. Recirculation of topics with revisions based on the STP meeting discussion
will open in Q2.

STP 1017 — Vacuum Cleaners, Blower Cleaners, and Household Floor Finishing Machines

A new revision cycle is underway. Work is ongoing, with a series of Technical Harmonization Committee (THC) meetings being held. Once the compiled draft proposals are ready, the next step will be to circulate the document for review by the consensus bodies and public.


STP 2595 — General Requirements for Battery-Powered Appliances

The new, third edition of UL/CSA 2595, General Requirements for Battery-Powered Appliances, has been developed and was circulated for preliminary STP review in 2018. The new edition will integrate, update
and clarify a number of requirements, related to maximum rated voltages, use of general purpose batteries, general
conditions of test requirements, normal charging of lithium-ion systems, power switches, and products powered or charged by universal serial bus (USB) power sources. A significant number
of comments were received, which are currently being considered by the THC. It is anticipated that the proposed new edition will be posted for ballot in the second quarter of 2019.


STP 60335-2-40 — Household and Similar Electrical Appliances – Safety – Part 2-40: Particular Requirements for Electrical Heat Pumps, Air Conditioners and Dehumidifiers

The international harmonization working group (CANENA 61D Work Group 10) addressed preliminary review comments received on the initial draft of the proposed new, third edition. Upon completion of that work, the
proposed new edition was circulated for STP ballot with a closing date of Feb. 5, 2019. The proposed new edition reached consensus with comments. The working group is now holding a series of meetings to review and address all ballot comments prior to final recirculation.

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