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1、FOR INTERNAL UL OR CSDS USE ONLY NOT FOR OUTSIDE DISTRIBUTION Subject 73 September 29, 2006 SUMMARY OF TOPICS The following changes in requirements are being proposed: 1. For Preliminary Review Only: Rearrangement of current wording for 21.3.1 to clarify existing requirement specifying what products
2、 shall have thermal or overload protection. 2. For Preliminary Review Only: Revisions to 12.1.2.5 and 12.2.1.2 to clearly identify cord types that are allowable for portable and stationary appliances. 3. For Preliminary Review Only: New exception to 12.1.2.9 for power supply cord attachment plug rat
3、ings for appliances not constituting a continuous load. 4. For Preliminary Review Only: Deletion of the heading “INSTRUCTIONS PERTAINING TO A RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO PERSONS” from 58.1. 5. For Preliminary Review Only: Deletion of redundant marking requirements for outdoor use. COM
4、MENTS DUE: OCTOBER 13, 2006 For your convenience in review, proposed additions to existing requirements are shown underlined and proposed deletions are shown lined-out. 1. For Preliminary Review Only: Rearrangement of current wording for 21.3.1 to clarify existing requirement specifying what product
5、s shall have thermal or overload protection. BACKGROUND This proposal is for review and comment only (no ballot at this time). Please note that comments on a preliminary review document will not receive a response from the proposal author through CSDS. Instead, the proposal author is asked to review
6、 the comments received during the preliminary review and adjust the proposals and/or supporting rationale as the author determines to be appropriate. The preliminary review process is an informal mechanism that provides authors with the opportunity to refi ne their proposals before the proposals adv
7、ance in ULs standards development process. Normally, the next step in the process is the more formal STP ballot and stakeholder review process. Only comments newly posted during the more formal STP ballot and stakeholder review process will be addressed and responded to. RATIONALE Proposal submitted
8、 by Michelle Andersen, Underwriters Laboratories Inc. FOR INTERNAL UL OR CSDS USE ONLY NOT FOR OUTSIDE DISTRIBUTION Paragraph 21.3.1 is unclear due to the punctuation used, and the arrangement of the wording. The paragraph has been reformatted to clarify the types of appliances required to incorpora
9、te thermal or overload protection for the motor. PROPOSAL 21.3.1 An appliance shall incorporate thermal or overload protection in accordance with 21.3.2 if it is intended to be permanently connected, continuous-duty, and manually started, employing a motor rated 1 hp (746 W output) or less, or remot
10、ely or automatically controlled. 21.3.1 An appliance shall incorporate thermal or overload protection in accordance with 21.3.2 if it is intended to be: a) Permanently connected, continuous-duty, and manually started, employing a motor rated 1 hp (746 W output) or less; b) Remotely controlled; or c)
11、 Automatically controlled. 2. For Preliminary Review Only: Revisions to 12.1.2.5 and 12.2.1.2 to clearly identify cord types that are allowable for portable and stationary appliances. BACKGROUND This proposal is for review and comment only (no ballot at this time). Please note that comments on a pre
12、liminary review document will not receive a response from the proposal author through CSDS. Instead, the proposal author is asked to review the comments received during the preliminary review and adjust the proposals and/or supporting rationale as the author determines to be appropriate. The prelimi
13、nary review process is an informal mechanism that provides authors with the opportunity to refi ne their proposals before the proposals advance in ULs standards development process. Normally, the next step in the process is the more formal STP ballot and stakeholder review process. Only comments new
14、ly posted during the more formal STP ballot and stakeholder review process will be addressed and responded to. RATIONALE Proposal submitted by Michelle Andersen, Underwriters Laboratories Inc. The allowable cord types for portable appliances are specifi ed in 12.1.2.5, and the allowable cord types f
15、or stationary appliances are specifi ed in 12.2.1.2. However, 12.1.2.5 currently does not indicate that the cord types specifi ed are for portable appliances (only), and does not reference 12.2.1.2 for the cord types allowable for stationary appliances. The proposed revisions will clarify the above.
16、 PROPOSAL 12.1.2.5 Type SJ, SJE, SJO, SJOO, SJT, SJTO, or SJTOO cord is required when thea portable appliance is intended for commercial or industrial use, and Type SP-2, SPE-2, or SPT-2 when thea portable appliance is intended for household use. A heavier cord type at least equally serviceable for
17、the application may be used. See 12.2.1.2 for cord types allowed for stationary appliances. SEPTEMBER 29, 2006SUBJECT 73-2- FOR INTERNAL UL OR CSDS USE ONLY NOT FOR OUTSIDE DISTRIBUTION 12.2.1.2 A stationary appliance may be provided with not more than 8 ft (2.44 m) of Type S, SE, SO, SOO, ST, STO,
18、or STOO cord and an attachment plug for supply connection. The investigation of such a feature will include consideration of the utility of the appliance and the necessity of having it readily detachable from its source of supply by means of a plug. A heavier cord type at least equally serviceable f
19、or the application may be used. 3. For Preliminary Review Only: New exception to 12.1.2.9 for power supply cord attachment plug ratings for appliances not constituting a continuous load. BACKGROUND This proposal is for review and comment only (no ballot at this time). Please note that comments on a
20、preliminary review document will not receive a response from the proposal author through CSDS. Instead, the proposal author is asked to review the comments received during the preliminary review and adjust the proposals and/or supporting rationale as the author determines to be appropriate. The prel
21、iminary review process is an informal mechanism that provides authors with the opportunity to refi ne their proposals before the proposals advance in ULs standards development process. Normally, the next step in the process is the more formal STP ballot and stakeholder review process. Only comments
22、newly posted during the more formal STP ballot and stakeholder review process will be addressed and responded to. RATIONALE Proposal submitted by Michelle Andersen, Underwriters Laboratories Inc. Where the operation of a product is such that the load will not constitute a continuous load on the bran
23、ch circuit, it is permissible for the attachment plug to have a current rating not less than the current rating of the product. PROPOSAL 12.1.2.9 The attachment plug shall have an ampere rating not less than 125% of the rated current of an appliance, or, when the appliance is not provided with a cur
24、rent rating, the measured input current under maximum normal load conditions, and a voltage rating equal to the rated voltage of the appliance. If an appliance can be adapted for use on two or more different values of voltage by fi eld alteration of internal connections, the attachment plug provided
25、 with the appliance shall be acceptable for the voltage for which the appliance is connected when shipped from the factory. See 56.1.9. Exception No. 1: A stationary appliance, marked in accordance with 56.3.3, shall employ an attachment plug rated not less than the current rating of the appliance o
26、r, when the appliance is not provided with a current rating, the measured input current under maximum normal load conditions. Exception No. 2: When the appliance load does not constitute a continuous load (3 h or more) on the branch circuit, the current rating of the attachment plug shall not be les
27、s than the current rating of the appliance, or, when the appliance is not provided with a current rating, the measured input current under maximum normal load conditions. SEPTEMBER 29, 2006SUBJECT 73-3- FOR INTERNAL UL OR CSDS USE ONLY NOT FOR OUTSIDE DISTRIBUTION 4. For Preliminary Review Only: Del
28、etion of the heading “INSTRUCTIONS PERTAINING TO A RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO PERSONS” from 58.1. BACKGROUND This proposal is for review and comment only (no ballot at this time). Please note that comments on a preliminary review document will not receive a response from the proposal
29、 author through CSDS. Instead, the proposal author is asked to review the comments received during the preliminary review and adjust the proposals and/or supporting rationale as the author determines to be appropriate. The preliminary review process is an informal mechanism that provides authors wit
30、h the opportunity to refi ne their proposals before the proposals advance in ULs standards development process. Normally, the next step in the process is the more formal STP ballot and stakeholder review process. Only comments newly posted during the more formal STP ballot and stakeholder review pro
31、cess will be addressed and responded to. RATIONALE Proposal submitted by Michelle Andersen, Underwriters Laboratories Inc. The instructions pertaining to the risk of fi re, electric shock or injury to persons are required to be preceded by the statement Important Safety Instructions per 58.4. The ad
32、ditional heading required by 58.1 is not commonly used within other appliance standards, so its deletion has been proposed. PROPOSAL 58.1 For household appliances, instructions pertaining to a risk of fi re, electric shock, or injury to persons shall warn the user of reasonably foreseeable risks and
33、 state the precautions to be taken to reduce such risks. Such instructions shall be preceded by the heading INSTRUCTIONS PERTAINING TO A RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO PERSONS or the equivalent. 5. For Preliminary Review Only: Deletion of redundant marking requirements for outdoor use. B
34、ACKGROUND This proposal is for review and comment only (no ballot at this time). Please note that comments on a preliminary review document will not receive a response from the proposal author through CSDS. Instead, the proposal author is asked to review the comments received during the preliminary
35、review and adjust the proposals and/or supporting rationale as the author determines to be appropriate. The preliminary review process is an informal mechanism that provides authors with the opportunity to refi ne their proposals before the proposals advance in ULs standards development process. Nor
36、mally, the next step in the process is the more formal STP ballot and stakeholder review process. Only comments newly posted during the more formal STP ballot and stakeholder review process will be addressed and responded to. RATIONALE Proposal submitted by Michelle Andersen, Underwriters Laboratori
37、es Inc. UL proposes to delete 56.5 as it is already covered by the requirements in 56.8. SEPTEMBER 29, 2006SUBJECT 73-4- FOR INTERNAL UL OR CSDS USE ONLY NOT FOR OUTSIDE DISTRIBUTION PROPOSAL 56.5 Plumbing accessories 56.5.1 A plumbing accessory that has been evaluated for outdoor use shall be permanently marked For Outdoor Use, or the equivalent. Copyright 2006 Underwriters Laboratories Inc. SEPTEMBER 29, 2006SUBJECT 73-5- FOR INTERNAL UL OR CSDS USE ONLY NOT FOR OUTSIDE DISTRIBUTION SEPTEMBER 29, 2006SUBJECT 73-6- No Text on This Page