Subject 1647

Bulletin Dated: January 15, 2010

SUMMARY OF TOPICS

The following changes in requirements to the Standard for Motor-Operated Massage and Exercise Machines, UL 1647, are being proposed:

1. Proposed Revision And Addition Of Requirements To Specify Requirements For The Investigation Of Treadmills Intended For Use By Dogs

2. Proposed Addition Of Requirements To Specify Requirements For The Investigation Of Motion Simulators Used With Upholstered Furnishings

3. Proposed Revision And Addition Of Leakage Current Requirements To Update The Unit Of Measure Of Current To Measurement Indication Unit (MIU)

4. Proposed Addition Of Requirements To Specify Alternate Spacing Requirements For Printed Wiring Boards

5. Proposed Revision To Section 34A.3 And Paragraph 52.2.2 To Delete The Reference To Deceleration Of A Treadmill Belt

6. Proposed Revision To The Marking Requirements In Paragraph 34.7 To Delete The Reference To Standing On The Side Rails And Replace It With Wording To Caution Users While Stepping Onto Or Off A Moving Belt

7. Proposed Revision To Paragraph 24.6 To Indicate That Either A Single-Pole Or Double-Pole Switch Used For The On/Off Operation Shall Be Connected To The Ungrounded Conductor Of The Supply Cord

8. Proposed Revision To Paragraph 46.1 To Clarify That The Fuse Used In The Test Circuit For The Switch And Control Test Is Used For Testing Purposes Only And Is Not A Component Of The Machine

9. Proposed Revision To Paragraph 59.4 To Add An Exception That Allow Parts That Are Shipped Separately To Be Tested Separately Using A Test That Simulates Testing The Final Assembly

10. Proposed Addition And Revision Of Requirements To Specify Requirements For The Investigation Of Agility Trainers

11. Proposed Editorial Revisions To Paragraphs 45.2, 54.3.1, And 64.5 To Correct References And Clarify Requirements