file e306570 vol 1 issued: 2007-04-10 revised: (100032-369

28
A n i n d e p e n d e n t o r g a n i z a t i o n w o r k i n g f o r a s a f e r w o r l d w i t h i n t e g r i t y, p r e c i s i o n a n d k n o w l e d g e. File E306570 Vol 1 Issued: 2007-04-10 Revised: FOLLOW-UP SERVICE PROCEDURE (TYPE R) COMPONENT - SWITCHES, CLOCK OPERATED (WGZR2,WGZR8) Manufacturer: KERDE ELECTRIC APPLIANCE FACTORY OF (100032-369) CIXI CITY DONGFAN HENGHE TOWN CIXI, ZHEJIANG 315318 CHINA Applicant: NINGBO TIMER-MATIC ELECTRONIC CO LTD (583871-001) DONGFAN HENGHE TOWN CIXI, ZHEJIANG 315318 CHINA Recognized Company: SAME AS MANUFACTURER (E312659) (100032-369) This Procedure authorizes the above manufacturer to use the marking specified by Underwriters Laboratories Inc.(UL), or any authorized licensee of UL, only on products covered by this Procedure, in accordance with the applicable UL Services Agreement. The prescribed Mark or Marking shall be used only at the above manufacturing location on such products which comply with this Procedure and any other applicable requirements. The Procedure contains information for the use of the above named Manufacturer and representatives of Underwriters Laboratories Inc. and is not to be used for any other purpose. It is lent to the Manufacturer with the understanding that it is not to be copied, either wholly or in part, and that it will be returned to Underwriters Laboratories Inc. (UL) or any authorized licensee of UL, upon request. This PROCEDURE, and any subsequent revision, is the property of Underwriters Laboratories Inc.(UL) and the authorized licensee of UL and is not transferable. Underwriters Laboratories Inc. Stephen Hewson William R. Carney Senior Vice President Director Global Follow-Up Service Operations North American Certification Program

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Page 1: File E306570 Vol 1 Issued: 2007-04-10 Revised: (100032-369

A n i n d e p e n d e n t o r g a n i z a t i o n w o r k i n g f o r a s a f e r w o r l d w i t h i n t e g r i t y, p r e c i s i o n a n d k n o w l e d g e.

File E306570 Vol 1 Issued: 2007-04-10 Revised: FOLLOW-UP SERVICE PROCEDURE (TYPE R) COMPONENT - SWITCHES, CLOCK OPERATED (WGZR2,WGZR8) Manufacturer: KERDE ELECTRIC APPLIANCE FACTORY OF (100032-369) CIXI CITY DONGFAN HENGHE TOWN CIXI, ZHEJIANG 315318 CHINA Applicant: NINGBO TIMER-MATIC ELECTRONIC CO LTD (583871-001) DONGFAN HENGHE TOWN CIXI, ZHEJIANG 315318 CHINA Recognized Company: SAME AS MANUFACTURER (E312659) (100032-369) This Procedure authorizes the above manufacturer to use the marking specified by Underwriters Laboratories Inc.(UL), or any authorized licensee of UL, only on products covered by this Procedure, in accordance with the applicable UL Services Agreement. The prescribed Mark or Marking shall be used only at the above manufacturing location on such products which comply with this Procedure and any other applicable requirements. The Procedure contains information for the use of the above named Manufacturer and representatives of Underwriters Laboratories Inc. and is not to be used for any other purpose. It is lent to the Manufacturer with the understanding that it is not to be copied, either wholly or in part, and that it will be returned to Underwriters Laboratories Inc. (UL) or any authorized licensee of UL, upon request. This PROCEDURE, and any subsequent revision, is the property of Underwriters Laboratories Inc.(UL) and the authorized licensee of UL and is not transferable. Underwriters Laboratories Inc.

Stephen Hewson William R. Carney Senior Vice President Director Global Follow-Up Service Operations North American Certification Program

Page 2: File E306570 Vol 1 Issued: 2007-04-10 Revised: (100032-369

Recognized Component Marking Data Page (RCMDP)

(FILE IMMEDIATELY AFTER AUTHORIZATION PAGE)

RECOGNIZED COMPONENT MARKING

Products Recognized under UL’s Component Recognition Service are identified by marking elements consisting of:

1. The Recognized Company’s identification specified in this document.

2. A catalog, model or other applicable product designation specified in the descriptive sections of this document.

3. The UL Recognized Component Mark shown below is optional unless required elsewhere in the Procedure.

Only those components, which actually bear the Marking, should be considered as being covered under the Recognition Program. The UL Listing or Classification Mark is not authorized for use on or in connection with Recognized Components. Recognized Component Mark

Minimum size of the Recognized Component Mark is not specified as long as it is legible. Minimum height of the registered symbol ® shall be 3/64 inch but may be omitted if it is out of proportion to the Recognized Component Mark or not legible to the naked eye. The manufacturer may reproduce the Mark electronically. Any decision regarding the acceptability of the manufacturer’s Mark reproduction will be made at the Reviewing Office.

THIS FORM PAGE IS TO BE REVISED BY THE NORTHBROOK LABEL DEPARTMENT ONLY

Page 3: File E306570 Vol 1 Issued: 2007-04-10 Revised: (100032-369

Recognized Component Marking Data Page (RCMDP)

(FILE IMMEDIATELY AFTER AUTHORIZATION PAGE)

RECOGNIZED COMPONENT MARKING

Products Recognized under UL’s Component Recognition Service are identified by marking elements consisting of:

1. The Recognized Company’s identification specified in this document.

2. A catalog, model or other applicable product designation specified in the descriptive sections of this document.

3. The UL Recognized Component Mark shown below:

(A) Recognized only to Canadian safety requirements, or; (B) Recognized to both U.S. and Canadian safety requirements.

Only those components, which actually bear the Marking, should be considered as being covered under the Recognition Program. The UL Listing or Classification Mark is not authorized for use on or in connection with Recognized Components. Recognized Component Mark

(A)

(B)

Minimum size of the Recognized Component Mark is not specified as long as it is legible. Minimum height of the registered symbol ® shall be 3/64 inch but may be omitted if it is out of proportion to the Recognized Component Mark or not legible to the naked eye. The manufacturer may reproduce the Mark electronically. Any decision regarding the acceptability of the manufacturer’s Mark reproduction will be made at the Reviewing Office.

THIS FORM PAGE IS TO BE REVISED BY THE NORTHBROOK LABEL DEPARTMENT ONLY

Page 4: File E306570 Vol 1 Issued: 2007-04-10 Revised: (100032-369

File E306570 Project 07CA07776

April 09, 2007

REPORT

On

COMPONENT - SWITCHES, CLOCK OPERATED

Applicant: Ningbo Timer-Matic Electronic Co Ltd Zhejiang China

Recognized

Company: Kerde Electric Appliance (E312659) Factory of Cixi City

Zhejiang China

Copyright © 2007 Underwriters Laboratories Inc.

Underwriters Laboratories Inc. authorizes the above named company to reproduce this Report provided it is reproduced in its entirety.

Underwriters Laboratories Inc. authorizes the above named company to reproduce that portion of this Report consisting of this Cover Page through Page 3.

Page 5: File E306570 Vol 1 Issued: 2007-04-10 Revised: (100032-369

File E306570 Vol. 1 Sec. 1 Page 1 Issued: 2007-04-09 and Report DESCRIPTION PRODUCT COVERED:

USR, CNR Component - Clock-Operated Switches, Timer Modules, Models TJ01, TJ02 and TV01. GENERAL:

These devices are mechanical clock-operated timer modules, time initiated and time terminated defrost timers arranged for manual time setting. The timer motor is normally energized continuously.

ELECTRICAL RATINGS:

Input (L-N):

125 V ac, 60 Hz.

Output (NO-COM):

15 A, 125 V ac, 60 Hz, Gen./ Res. 1/2 hp, 125 V ac, 60 Hz 10 A, 125 V ac, 60 Hz, Tungsten

MODEL DIFFERENCE:

Models TJ01, TJ02 and TV01 are identical to each other, except for time setting arrangement.

Page 6: File E306570 Vol 1 Issued: 2007-04-10 Revised: (100032-369

File E306570 Vol. 1 Sec. 1 Page 2 Issued: 2007-04-09 and Report NOMENCLATURE:

Cat. No. Description TJ01 24 hours Timer module with 15 minutes setting pins, see

Fig. 1 for details. TJ02 24 hours Timer module with 30 minutes setting pins, see

Fig. 3 for details. TV01 24 hours Timer module with 15 minutes setting pins, see

Fig. 5 for details.

Page 7: File E306570 Vol 1 Issued: 2007-04-10 Revised: (100032-369

File E306570 Vol. 1 Sec. 1 Page 3 Issued: 2007-04-09 and Report ENGINEERING CONSIDERATIONS (NOT FOR FIELD REPRESENTATIVE'S USE):

USR indicates investigation to the Standard for Clock-Operated Switches, UL 917, Fifth Edition.

CNR indicates investigation to Canadian National Standard CSA C22.2,

No. 177-92, Clock-Operated Switches.

Use - For use only in complete equipment applications where the acceptability of the combination is determined by Underwriters laboratories Inc. The product complies with the Standard UL 917 for Clock-Operated Switches.

Conditions of Acceptability - When installed in the final use equipment, etc, the following are among the considerations to be made:

1. These devices shall be installed in compliance with the enclosure, mounting, spacing, and segregation requirements of the end-use application.

2. The acceptability of the connections to these terminals including

temperature and secureness, shall be determined in the end-use application.

3. These devices are for factory wiring only.

4. These devices have been evaluated within ambient temperature of

25°C.

Page 8: File E306570 Vol 1 Issued: 2007-04-10 Revised: (100032-369

File E306570 Vol. 1 Sec. 1 Page 4 Issued: 2007-04-09 and Report FIG. No. Figure Title

1 Over view of Model TJ01

2 Unassembled view of Model TJ01 3 Over view of Model TJ02

4 Unassembled view of Model TJ02

5 Over view of Model TV01

6 Unassembled view of Model TV01

Page 9: File E306570 Vol 1 Issued: 2007-04-10 Revised: (100032-369

File E306570 Vol. 1 Sec. 1 Page 5 Issued: 2007-04-09 and Report CONSTRUCTION DETAILS:

The product shall be constructed in accordance with the following description.

Spacings - Spacings of not less than 1/16 in. (1.6 mm) through air or oil and 1/16 in. (1.6 mm) over the surface of insulating material are maintained between any uninsulated live parts of opposite polarity.

Tolerances - Unless specified otherwise, all indicated dimensions are nominal.

Corrosion Protection - All parts are of corrosion resistant material or are plated or painted as corrosion protection.

Markings – Company name or Trademarks, model designation and the UL Recognized Component Mark and when applicable Recognized Component Mark for nada are applied to the side of case. Electrical ratings are optional. Ca

Electrical Tubing and Sleeving – Unless otherwise noted, electrical

tubing or sleeving shall be Recognized Component tubing (YDPU2/8), and/or sleeving (UZFT2/8), rated 300 V, 80°C minimum.

Soldered Connections - All soldered connections are made mechanically secure before soldering. When hand soldered, leads on printed circuit boards are bent over prior to soldering.

Page 10: File E306570 Vol 1 Issued: 2007-04-10 Revised: (100032-369

File E306570 Vol. 1 Sec. 1 Page 6 Issued: 2007-04-09 and Report

MODEL TJ01 - FIGS. 1 AND 2

General – The general design, shape and arrangement shall be as illustrated except where variations are specifically described. Model TJ01 represents Models TJ02 and TV01.

1. Enclosure - Two pieces construction, Base and Cover, R/C (QMFZ2), PC, GE

Plastics China Ltd. E161723, Type 241, rated 125°C, V-2, secured together by physical fit.

Base – Overall 60.4 by 60 by 18.8 mm high, minimum 1.5 mm thick at the wall near the Motor Clips. Cover - Overall 60.4 by 60.1 by 22.3 mm high, minimum 1 mm thick at wall.

2. Indication Circle – R/C (QMFZ2), PC, GE Plastics China Ltd. E161723, Type 241, rated 115°C, V-2, overall 35.8 mm OD by 14.8 mm high, minimum 1 mm thick at the surface edge, physical fits to Cover.

3. Dial - R/C (QMFZ2), PC, GE Plastics China Ltd. E161723, Type 241, rated

115°C, V-2, overall 61.4 mm OD by 9.7 mm high, minimum 1 mm thick at the outer edge, engaged between Indication Circle and Cover.

4. Time Dial - R/C (QMFZ2), PC, GE Plastics China Ltd. E161723, Type 241,

rated 115°C, V-2, overall 49.4 mm OD by 8.4 mm high, minimum 0.8 mm thick, engaged between Dial and Cover.

5. Gear Assembly - Any R/C (QMFZ2) plastic. 6. Small Cover - R/C (QMFZ2), PC, GE Plastics China Ltd. E161723, Type

241, rated 125°C, V-2, overall 53.9 by 12.4 by 7 mm high, minimum 1.5 mm thick at live part supporting, physical fits to Base.

7. Motor – Synchronous motor, constructed as follows:

a. Bobbin – R/C (QMFZ2), PBT, Mitsubishi Engineering-Plastics Corp., E53664, type 5010GPN33, rated V-0, 75°C, minimum 0.5 mm thick, overall 9.6 by 16.9 by 9.5 mm wide.

b. Wire - Enamel copper wire.

c. Core - Steel, two pieces construction. Minimum 1.9 mm thick at

center of bobbin, provided with two slots as Crossover Lead Insulation.

Page 11: File E306570 Vol 1 Issued: 2007-04-10 Revised: (100032-369

File E306570 Vol. 1 Sec. 1 Page 7 Issued: 2007-04-09 and Report 7. Motor – Synchronous motor, constructed as follows:

d. Motor Case - Three pieces construction, Base, Frame and Cover, R/C (QMFZ2), PC, GE Plastics China Ltd. E161723, Type 241, rated 115°C, V-2. Base – overall 13.5 by 14.5 by 3.7 mm high, minimum 1.5 mm thick, physical fits to Frame. Frame - overall 13.3 by 21.3 by 11.3 mm high, minimum 0.8 mm thick, physical fits between Base and Core. Cover - overall 21 by 13.8 by 8.2 mm high, minimum 0.5 mm thick, physical fits to Core.

8. Output Switch – R/C (WOYR2/8), E136100, Toneluck Electronics Ind Co.,

Ltd., Cat. No. MQS-216 rated as electrical ratings of the device. Alternate - R/C (WOYR2/8), E302460, Cixi Kangbo Electrical Co., Ltd.,

Cat. No. KB-1 rated as electrical of the device. 9. Motor Clips - Phosphor bronze, two provided, 0.2 mm thick, forked ends

secured to motor terminals.

10. Switch Arm - R/C (QMFZ2), PC, GE Plastics China Ltd. E161723, Type 241, rated 115°C, V-2, minimum 1.1 mm thick, engaged between Base and Cover.

11. Motor Terminals – Silver plated copper alloy, male quick connect tabs,

two provided, 6.3 by 9.6 by 0.8 mm thick measured outside the Enclosure. 12. Resistor - Carbon film type, 22K ohm, 1W, connected in series between

Motor Clip and Motor Terminal.

Page 12: File E306570 Vol 1 Issued: 2007-04-10 Revised: (100032-369

File E306570 Vol. 1 App. A Page 1 Issued: 2007-04-09 APPENDIX A UL REPRESENTATIVE'S DUTIES AND INSTRUCTIONS FOR EXAMINATION OF THE PRODUCT I. UL REPRESENTATIVE'S DUTIES:

The UL Representative's duties include, but are not limited to:

A. Examining the construction of production intended to bear the UL Mark or Marking to determine compliance with the description of the product and any other requirements expressed in this procedure.

B. Where so specified by an Appendix B, forward samples to UL for

Follow-Up Tests.

C. Where so specified in Appendix C.

1. Witness the required tests, verifying that they are being performed correctly by the manufacturer.

2. Ensure that the instruments being used for the tests have

been calibrated at the prescribed interval and are in good working order.

3. Ensure that the proper information is being recorded and is

up-to-date.

D. Report to the manufacturer and Follow-Up Services Department by means of a Variation Notice (VN) if:

1. Variations in construction are found,

2. The manufacturer's method and/or frequency of test is not as

described,

3. The records maintained by the manufacturer are not as described,

4. The manufacturer's inspection program is not being performed

as described, or Nonconforming test results are witnessed during tests conducted specifically for the UL Representative.

Page 13: File E306570 Vol 1 Issued: 2007-04-10 Revised: (100032-369

File E306570 Vol. 1 App. A Page 2 Issued: 2007-04-09

E. Explain to the manufacturer that a Variation Notice is a means of communication with the manufacturer and forms a record of those items where nonconformance to the Procedure has been found. When a product does not comply with the Follow-Up Services Procedure, require that the manufacturer either shall (1) remove any markings referencing UL from the product, or (2) suitably modify all products that do not comply with the Follow-Up Services Procedure, or (3) hold shipment pending further instructions from Follow-Up Services.

In the event of a disagreement between the manufacturer and the UL Representative as to whether a product is acceptable, the manufacturer shall hold production at the factory pending resolution of the variations. The manufacturer has the right to appeal a decision with which he disagrees and the UL Representative shall provide the name of the FUS engineer to whom the appeal is to be made. Should Follow-Up Services grant temporary authorization for the continued use of the UL Mark, such temporary authorization shall only be for the time needed to review and/or process the Procedure revisions, or as otherwise specified to cover a particular lot or production run.

II. INSTRUCTIONS FOR INSPECTION OF THE PRODUCT:

A. At each inspection, samples of current production and/or stock shall be examined for compliance with the applicable descriptions and requirements contained in this Procedure.

Page 14: File E306570 Vol 1 Issued: 2007-04-10 Revised: (100032-369

File E306570 Vol. 1 App. B Page 1 Issued: 2007-04-09 APPENDIX B SPECIAL INSTRUCTIONS UL REPRESENTATIVE: GENERAL One or more products, covered by this Follow-Up Service Procedure have thermoplastic enclosures for live parts and are [Listed] [Recognized] with the understanding that the UL Representative will select representative samples for follow-up tests. The tests described below are a compilation of all the tests that may be conducted on products using plastic enclosures. The products and applicable tests are identified on Pages 5 and 6 of this Appendix. SAMPLES GROUPING: Enclosures, or covers are grouped by product, catalog, or model numbers. A selection of one enclosure or cover of the group is deemed sufficient to represent the entire group. PRIORITY: Frequency of enclosure sampling will be based upon one sample selection per group per year. The same model or type number enclosure shall not be selected in 2 consecutive years if possible. The quantity of complete samples and additional enclosures required is detailed on Page 5 of this Appendix. The samples requested from any one group are to be sent only once a year (any one quarter of the year). Depending upon the actual production or stock at the time of Follow-Up Service Inspection all desired products may not be available at one time. Therefore, a priority of first choice, second choice and third choice of a particular group has been established as detailed below. During the initial visit of the year the UL Representative shall discuss the availability of proposed sampling with the manufacturer. Based upon the number of products involved, sample pick-up amounts should be made to permit a uniform rate of testing during the year. The samples shall be appropriately identified, tagged to indicate the thermoplastic materials, as to their manufacturer and type designation, and forward to the Follow-up Services Department, Melville Office.

Page 15: File E306570 Vol 1 Issued: 2007-04-10 Revised: (100032-369

File E306570 Vol. 1 App. B Page 2 Issued: 2007-04-09 CONFORMITY ASSESSMENT SERVICES DEPARTMENT: The samples shall be subjected to the following tests as appropriate to the products and in accordance with Page 6 of this Appendix. TEMPERATURE TEST

METHOD Three samples of the complete appliance shall be placed in an oven for a period of seven hours and maintained at a uniform temperature of 70°C or higher, as indicated on Page 6 of this Appendix.

RESULTS There shall be no softening of the enclosure material, as determined by handling immediately after the heating in the oven. A slight amount of shrinkage or warping is not considered to be objectionable if there is no exposure of uninsulated live metal parts, but any cracking of the material is not acceptable. STRAIN RELIEF TEST

METHOD Immediately following the Temperature Test, when the test samples have cooled to room temperature, the appliance shall be subjected to the same Strain Relief Test which is applicable to the appliance in the "as received" condition.

RESULTS Warping or distortion shall be limited to the extent that the appliance will still have acceptable strain relief characteristics.

Page 16: File E306570 Vol 1 Issued: 2007-04-10 Revised: (100032-369

File E306570 Vol. 1 App. B Page 3 Issued: 2007-04-09 MECHANICAL ABUSE TEST

METHOD I Each of three samples shall be dropped three times from a height of 3 ft onto a hardwood surface. The manner of dropping shall be such that each sample will strike in an entirely different position in each of the three drops.

METHOD II Three samples shall be tested. A smooth steel sphere, 2 in in dia and weighing approx 1.18 lbs, shall be allowed to fall freely from rest through the distance required to cause it to strike the surface under test with an impact of 5.0 ft/lbs. For surfaces other than the top of an enclosure, the steel sphere shall be suspended by a cord and allowed to fall as a pendulum through the distance required to cause it to strike the surface with the specified impact. Immediately following impact (Method I or II) each sample is subjected to a Dielectric Withstand Test consisting of applying a 1000 V ac potential between uninsulated live parts and dead-metal parts (power supply cord to accessible dead-metal or foil wrapped around the enclosure) for one minute.

RESULTS Cracking of the enclosure shall not expose any live parts to accidental contact, nor affect the function of any safety or constructional features such as thermostats, overload protective devices, strain relief, etc. Cracking of the enclosure is not acceptable if a dust or moisture type enclosure is required. There shall be no dielectric breakdown following Method I or Method II.

Page 17: File E306570 Vol 1 Issued: 2007-04-10 Revised: (100032-369

File E306570 Vol. 1 App. B Page 4 Issued: 2007-04-09 FLAMMABILITY TEST

METHOD Three sections of the enclosure of the product most liable to be ignited are selected, as judged by their proximity to an internal component (such as a coil winding, switch, splice, etc.) whose failure by arcing or burning may ignite the enclosure, or as judged on the basis of comparable factors. With a separate sample in each case, each of such sections is to be subjected to the Flame Test, described below. In the performance of the test, the appliance is to be supported in its normal operating position in a draft-free location and nonthermoplastic portions of the enclosure in contact with or fastened to the thermoplastic portions shall not be removed; and, insofar as possible, the internal mechanism of the appliance shall be in place. The flame of a Bunsen burner shall be adjusted to have 3/4 in of yellow flame with no blue cone. Two 30 s applications of the tip of the flame shall be made to each section of the enclosure selected as indicated above, with a one-minute interval between the applications.

RESULTS The material shall be self-extinguishing to the extent that it will not continue for more than one minute after the second application of the test flame. The material is not acceptable if complete destruction of the sample occurs during the application of the flame or within one minute after removal of the test flame. The extent of permissible burning cannot be specified, because the nature of the plastic material and the formation and thickness of the parts have a considerable bearing upon the results obtained. ABNORMAL-OPERATION TEST

METHOD The appliance shall be operated under the condition of abnormal operation, such as stalled-rotor operation, operation without liquids, operation with current-carrying parts short-circuiting, etc. During the test, the appliance is to be draped with one layer of cheesecloth while resting on white tissue paper on a softwood surface. The appliance shall be operated continuously until the ultimate results have been determined. In most cases, continuous operation for 7 or 8 h will be necessary in order to make sure that the ultimate results have been determined.

BASIS OF ACCEPTABILITY There shall be (1) no ignition of the mounting surface or the cheesecloth as a result of emission of glowing or flaming materials, (2) no ignition of the enclosure, or (3) no exposure of live parts. Warping, shrinkage, expansion or cracking of the thermoplastic material is not objectionable.

Page 18: File E306570 Vol 1 Issued: 2007-04-10 Revised: (100032-369

File E306570 Vol. 1 App. B Page 5 Issued: 2007-04-09 SAMPLE GUIDE

Test Samples and Remarks Enclosu

re Product Section or (Items and

Figs) Group

Material

Identification

Report Date

Complete

Enclosure

or Photo Nos.)

Reserved for further use.

Page 19: File E306570 Vol 1 Issued: 2007-04-10 Revised: (100032-369

File E306570 Vol. 1 App. B Page 6 Issued: 2007-04-09

TEST GUIDE Tests to be Conducted and Remarks Report Tempera Strain Mech. Abnormal Model No. Section Date -ture Relief Flame Abuse Operation

Reserved for further use.

Page 20: File E306570 Vol 1 Issued: 2007-04-10 Revised: (100032-369

File E306570 Vol. 1 App. C Page 1 Issued: 2007-04-09 APPENDIX C UL REPRESENTATIVE INSTRUCTIONS FOR TESTS AT THE FACTORY

During the regular visits to the factory:

A. Verify that the manufacturer has the required test equipment. See Page 2.

B. Verify that the equipment is functioning properly and all the

instruments have been calibrated at least once annually.

C. Observe that the manufacturer is performing the Dielectric Withstand Test on 100% of production. See Page 6 for exceptions.

D. Observe that the manufacturer is performing the Grounding

Continuity Test on 100% of production of appliances having a grounding type attachment plug cap. See Page 6 for exceptions.

E. Review the manufacturer's records to assure that the tests are

being conducted and appropriate action is taken with respect to failures and rejections.

RESPONSIBILITY OF THE MANUFACTURER

1. Except as noted on Page 6, 100% of production of each appliance covered by this Procedure shall be subjected to the Dielectric Withstand Test, Method I or Method II employing the equipment noted on Page 2.

2. Except as noted in Page 6, the Grounding Continuity Test shall be

conducted on 100% of production of each cord connected appliance having a grounding type attachment plug cap.

3. Periodically the manufacturer shall determine that the test

equipment is functioning properly.

4. The instruments used for the required tests shall be calibrated at regular intervals (at least once annually).

5. The manufacturer shall maintain instrument calibration records,

and records of test performance. These test performance records shall include, but are not limited to: date(s) of production, results of test; (even though no failures occurred) number of units rejected; and corrective action taken. All records shall be readily available to UL personnel.

Page 21: File E306570 Vol 1 Issued: 2007-04-10 Revised: (100032-369

File E306570 Vol. 1 App. C Page 2 Issued: 2007-04-09 MANUFACTURER'S DIELECTRIC WITHSTAND TEST EQUIPMENT: The equipment specified below has been examined and found to be acceptable for use by this manufacturer in conducting the Production Line Dielectric Withstand Test: Manufacturer Designation

Page 22: File E306570 Vol 1 Issued: 2007-04-10 Revised: (100032-369

File E306570 Vol. 1 App. C Page 3 Issued: 2007-04-09 PRODUCTION LINE TESTS TO BE CONDUCTED: I. DIELECTRIC WITHSTAND VOLTAGE TEST FOR OTHER THAN DOUBLE INSULATED PRODUCTS:

1. Each appliance shall withstand without electrical breakdown, as a routine production-line test, the application of a 40-70 Hz potential between (1) the primary wiring, including connected components, and accessible dead-metal parts that are likely to become energized, and (2) between primary wiring and accessible low voltage (42.4 V peak or less) metal parts, including terminals.

2. The test shall be at not less than the test time and the

potential of either Condition A or B of the following table: Condition A Condition B Unit Rating and Form Potential, V Time, s Potential V, Time, s 250 V or less with an induction motor rated 1/2 hp(373 W) or less

1000 60 1200 1

600 V or less with a universal motor

1000 60 1200 1

All other tools 1000 + 2 V±a 60 1200 +

2.4 Va 1

a V is the maximum marked voltage but not less than 120 V for a appliance with a rating between 105-120 V inclusive, and not less than 240 V for a appliance with a rating between 210-240 V inclusive.

Page 23: File E306570 Vol 1 Issued: 2007-04-10 Revised: (100032-369

File E306570 Vol. 1 App. C Page 4 Issued: 2007-04-09

3. The appliance may be in a heated or unheated condition for the test.

4. During the test, all primary circuit conductors of the appliance

are to be connected together to one terminal of the test equipment; the second test equipment terminal is to be connected to the accessible dead-metal and accessible low voltage (42.4 V peak or less) metal parts, including terminals.

5. The test potential may be gradually increased to the required

value but the full value is to be applied for 1 second or 1 minute as required.

6. The test shall be conducted when the appliance is fully assembled.

It is not intended that the appliance be unwired, modified, or disassembled for the test.

Exception 1 - Parts such as snap covers, or friction-fit knobs, which would interfere with the performance of the test, need not be in place. Exception 2 - The tests may be performed before final assembly if the test represents that for the completed appliance. Any component not included shall not affect the results with respect to determination of possible electric shock from miswiring, defective component, insufficient spacings, incorrect assembly, etc. 7. Solid-state components that might be damaged by a secondary effect (including voltage surge, excessive heating, etc). of the test may be short-circuited by means of a temporary electrical jumper or the test may be conducted without the component electrically connected, providing that wiring and terminal spacings are maintained.

Page 24: File E306570 Vol 1 Issued: 2007-04-10 Revised: (100032-369

File E306570 Vol. 1 App. C Page 5 Issued: 2007-04-09 II. DIELECTRIC WITHSTAND VOLTAGE TEST FOR DOUBLE INSULATED PRODUCTS: The manufacturer shall determine, by a routine production line test, that each double-insulated appliance he produces will withstand for 1 second without breakdown, the application of a 60 Hz Sinusoidal Test potential as indicated in the following table.

Dielectric Withstand Test Potential Points Between Which Potential is to be Applied Test Potential in Volts (rms) A. Live parts and dead-metal parts insulated from each other by functional (basic) insulation.

1000

B. Inaccessible dead-metal parts and (1) accessible dead-metal parts, and (2) for a product with an outer enclosure of insulating material, metal foil wrapped tightly around the enclosure.

1500

C. Live parts and (1) accessible dead-metal parts, and (2) for a product with an outer enclosure of insulating material, metal foil wrapped tightly around the enclosure.

2500

Note A - If necessary because of the inaccessibility of parts, tests in accordance with Items 1 and 2 of the above table may be made on subassemblies of the appliance, in this case, the test indicated in Item 3 is to be made. If the tests in accordance with Items 1 and 2 are made on the completely assembled appliance, the tests indicated in Item 3 may be omitted if there is no reinforced insulation.

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File E306570 Vol. 1 App. C Page 6 Issued: 2007-04-09 III. GROUNDING CONTINUITY TEST 1. Except as noted on Page 6, each appliance having a power supply cord with a grounding conductor shall be tested to ensure grounding continuity between the grounding blade of the attachment plug cap and accessible dead-metal parts of the appliance. 2. Only a single test need be made if the accessible metal selected is conductively connected by design to all other accessible metal. 3. Any suitable indicating device (an ohmmeter, a battery and buzzer combination, or the like) may be used to determine compliance with the grounding continuity requirement. IV. PRODUCTS NOT REQUIRING TESTING DIELECTRIC WITHSTAND TEST General - Based on Engineering judgment, the Production Line Dielectric Withstand Test is not required to be performed on the models tabulated below:

Procedure Section Model Designation N/A

GROUNDING CONTINUITY TEST General - Based on Engineering judgment, the Grounding Continuity Test is not required to be performed on the models tabulated below:

Procedure Section Model Designation N/A

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File E306570 Vol. 1 Index Page 1 Issued: 2007-04-09 INDEX

Requirements Evaluated to

Model Sec. USR CNR Models TJ01, TJ02 and TV01 1 X X CNR = Indicates investigation to Canadian National Standard, C22.2 No. 177. USR = Indicates investigation to UL 917, the Standard For Clock-Operated

Switches

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File E306570 Vol. 1 Sec. Gen. Page 1 Issued: 2007-04-09 GENERAL PRODUCT COVERED

Component - Clock-operated switches. FACTORY LOCATION AND IDENTIFICATION:

When more than one manufacturing location is indicated on the authorization page addendum for the procedure volume, the following factory identification code is used:

Location Factory Identification

Reserved for future use

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File E306570 Vol. 1 Sec. Gen. Page 2 Issued: 2007-04-09 CONSTRUCTION DETAILS:

If provided and unless otherwise described in the individual Report, the following paragraphs apply to all products included in this Procedure. The references to "CN" only apply to products that have been evaluated to Canadian requirements as indicated in the individual Reports. Abbreviations - Sec. Gen. - Section General

R/C - Recognized Component PRI - Primary SEC - Secondary CNR - Canadian Standard, Recognized Component USR - United States, Recognized Component

"CN" indicates that the component has been evaluated to Canadian requirements. The Field Representative shall confirm that the component has a CSA Certification Mark or an equivalent identifier or a Canadian UL Listing or Recognized Mark. Note: To Field Representive:

All products covered in this file are dated coded. Manufacturer may mark the finished product with a combination of numbers and/or letters which is a date code representing the year and/or month and/or week in any form that the product was manufactured.