1、October 9, 20011SUBJECT 2069OUTLINE OF INVESTIGATIONFORBATTERY HOLDERSIssue Number: 2OCTOBER 9, 2001COPYRIGHT 2001 UNDERWRITERS LABORATORIES INC.OCTOBER 9, 2001SUBJECT 20692No Text on This PageCONTENTSFOREWORD 4INTRODUCTION1 Scope .52 General 5CONSTRUCTION3 General 5PERFORMANCE4 Vibration Test 55 Te
2、mperature Test .66 Jarring Test 67 Mold Stress Relief Test 98 Battery Replacement Test 99 Corrosion Tests (Optional) .99.1 General .99.2 Moisture hydrogen sulfide-air mixture exposure .109.3 Moisture carbon dioxide-sulfur dioxide-air mixture exposure 1010 Additional Considerations 10OCTOBER 9, 2001
3、SUBJECT 2069 3FOREWORDA. This Outline of Investigation contains basic requirements for products covered by UnderwritersLaboratories Inc. (UL) under its Follow-Up Service for this category within the limitations given below andin the Scope section of this Outline of Investigation. They are subject to
4、 revision as further experience andinvestigation may show is necessary or desirable.B. The observance of these requirements by a manufacturer is one of the conditions of the continuedcoverage of the manufacturers product.C. A product which complies with the text of this Outline of Investigation will
5、 not necessarily be judged tocomply with the Outline of Investigation if, when examined and tested, it is found to have other featureswhich impair the level of safety contemplated by these requirements.D. A product that contains features, characteristics, components, materials, or systems new or dif
6、ferentfrom those covered by the requirements in this Outline of Investigation, and that involves a risk of fire orof electric shock or injury to persons shall be evaluated using appropriate additional component andend-product requirements to maintain the level of safety as originally anticipated by
7、the intent of thisOutline of Investigation. A product whose features, characteristics, components, materials, or systemsconflict with specific requirements or provisions of this Outline of Investigation does not comply with thisOutline of Investigation. Revision of requirements shall be proposed and
8、 adopted in conformance with themethods employed for development, revision, and implementation of this Outline of Investigation.E. UL, in performing its functions in accordance with its objectives, does not assume or undertake todischarge any responsibility of the manufacturer or any other party. Th
9、e opinions and findings of ULrepresent its professional judgement given with due consideration to the necessary limitations of practicaloperation and state of the art at the time the Outline of Investigation is processed. UL shall not beresponsible to anyone for the use of or reliance upon this Outl
10、ine of Investigation by anyone. UL shall notincur any obligation or liability for damages, including consequential damages, arising out of or inconnection with the use, interpretation of, or reliance upon this Outline of Investigation.F. Many tests required by the Outline of Investigations of UL are
11、 inherently hazardous and adequatesafeguards for personnel and property shall be employed in conducting such tests.OCTOBER 9, 2001SUBJECT 20694INTRODUCTION1 Scope1.1 These requirements cover battery holders intended for, but not limited to lithium batteries, emergencylighting and power batteries, an
12、d sealed nickel-cadmium batteries, which hold coin and AAA to D size celltype batteries.1.2 These holders are intended for use in circuits where the charging voltage to the holder does notexceed Class 2 levels defined in the National Electrical Code, NFPA 70.1.3 These requirements are intended to re
13、duce the risk of fire or explosion when the batteries are usedin a product. The performance tests also address the acceptability of the battery holders. The finalacceptability of these battery holders is dependent on their use with the batteries in a complete productthat complies with the requiremen
14、ts applicable to products in which the product is intended to be used.2 General2.1 Unless otherwise specified, the battery holder manufacturer may elect to specify the type or types ofbattery a battery holder is intended for use with.2.2 Values stated without parentheses are the requirement. Values
15、in parentheses are explanatory orapproximate information.2.3 The battery holder manufacturer is to specify the current and voltage ratings of the battery holder.CONSTRUCTION3 General3.1 The construction of the battery holder shall comply with the requirements applicable to the type ortypes of batter
16、y under consideration.PERFORMANCE4 Vibration Test4.1 The number of samples specified in Table 4.1 are to be reconditioned by vibration prior to beingsubjected to the temperature and jarring tests. A battery holder shall withstand vibration with arepresentative cell, provided by the manufacturer, wit
17、hout dislodgement of the cell or sustaining damage.Following the vibration, the temperature and jarring tests shall be conducted.4.2 One battery holder with dummy cell shall be mounted in accordance with the manufacturersinstructions to a board in each of the following positions: right side up, righ
18、t side down, and two verticalpositions such that the second position has been rotate 90 degrees through the vertical plane. The boardsare then mounted to a variable speed vibration machine having an amplitude of 0.01 in. (0.25 mm). Thefrequency of vibration is to be varied from 10 to 35 cycles/secon
19、d (c/s) in increments of 5 c/s until resonantfrequency is obtained. The samples are then vibrated at the maximum resonant frequency for a period of1/4 h. If no resonant frequency is obtained, the samples are to be vibrated at 35 c/s for a period of 4 h.OCTOBER 9, 2001 SUBJECT 2069 54.3 For testing p
20、urposes, amplitude is defined as the maximum displacement of sinusoidal motion froma position of rest or 1/2 of the total table displacement. Resonance is defined at the maximummagnification of applied vibration.Table 4.1Number of holders to be conditioned for temperature and jarring testingTest To
21、BeConducted As ReceivedHoldersReconditioned byVibrationHoldersConditioned ByReplacementHoldersConditioned byH2SHolders ConditionedBy CO2/SO2Temperature 5 *4 5 5 5Jarring *4 *4 *4 *4 *4* Symmetric cells may only require three samples, each oriented in a distinct position.5 Temperature Test5.1 The num
22、ber of samples specified in Table 4.1 are to be subjected to the temperature test after theconditionings specified in Table 4.1. The temperature rise of the holder conditioned by vibration shall not(1) exceed 100C when added to the room temperature or (2) exceed by more than 30 percent thetemperatur
23、e rise of the as-received holders. With a dummy battery, as described in 5.2, in place andcarrying the holders rated current continuously, the temperature rise of the various parts of the batteryholder shall not exceed X, when X is determined by the following:X = 100C Temperature of holder prior to
24、testing.5.2 The Temperature Test is to be conducted at room temperature. Each battery holder is to be securedto a flat, non-conducting surface, in its normal mounting position. The dummy battery is to be of unplatedcopper and in the size of the battery the holder is intended for. Temperatures are to
25、 be measured withType J thermocouples. The test shall be conducted until the holder and dummy battery come toequilibrium and three constant temperature readings are noted at 5 minute intervals.5.3 In addition to the temperature rise limitations, there shall be no signs of damage or discoloration tot
26、he holder as a result of these tests.6 Jarring Test6.1 A battery holder shall withstand jarring resulting from impact, such as that which may occur duringnormal service, without causing dislodgement of the battery, and without adversely affecting subsequentoperation. The number of samples specified
27、in Table 4.1 are to be subjected to the jarring test.6.2 The battery holder is to be mounted in accordance with the manufacturers instruction in the vertical,horizontal, and upside down positions, see Figure 6.1, to the center ofa6by4ft.(1.8 by 1.2 m), nominal3/4 in. (19.1 mm) thick plywood board wh
28、ich is secured in place at four corners. A representative cell,provided by the manufacturer, is to be placed in the battery holder. Then a 3 ft-lb (4.08 J) impact is to beapplied to the center of the reverse side of this board by means of 1.18 lb (0.54 Kg), 2 in. (50.8 mm)diameter steel sphere (1) s
29、wung through a pendulum arc from a height (H) of 2.54 ft. (775 mm), and (2)dropped from a height of 2.54 ft. (775 mm) to apply 3 ft-lb (4.08 J) of energy.OCTOBER 9, 2001SUBJECT 206966.3 In addition, the battery holder is to be mounted in accordance with the manufacturers instructions intwo vertical
30、positions, such that the second position has been rotated 90 through the vertical plane, to a3/4 in. (19.1 mm) thick plywood board (fixture) which slides up and down freely between two rails for afree fall distance of 60 in. See Figure 6.2. A representative cell, provided by the manufacturer, is to
31、beplaced in the battery holder. The fixture is then to be raised to a height of 60 in. (1.52 mm) and droppedonto a concrete slab.This is generated text for figtxt.This is generated text for figtxt.Figure 6.1OCTOBER 9, 2001 SUBJECT 2069 7Figure 6.2OCTOBER 9, 2001SUBJECT 206987 Mold Stress Relief Test
32、7.1 For battery holders containing or constructed of polymeric materials, three samples of the holder shallbe placed in a full draft circulating oven for 7 hours at 100C or for 7 hours at 10C over the PolymericMaterials Relative Thermal Index Temperature, whichever is higher.7.2 The oven exposure sh
33、all not cause softening of the material as determined by handling immediatelyafter conditioning, nor after cooling to room temperature shall there be any shrinkage, or other distortionthat causes interference with the intended operation of the battery holder.8 Battery Replacement Test8.1 Battery hol
34、ders are each to be conditioned by 50 cycles of battery removal and replacement at a ratenot to exceed 6 cycles/min. Following the conditioning, the Temperature and Jarring Tests shall beconducted. The holders conditioned by replacement (1) shall not display a reduction in contact ormounting integri
35、ty as determined by visual examination immediately after conditioning, (2) shall notexceed 100C when the temperature rise is added to the room temperature or exceed by more than 30percent the temperature rise of the as-received holders, and (3) shall withstand the jarring test.8.2 A representative b
36、attery supplied by the manufacturer is to be used for this conditioning.9 Corrosion Tests (Optional)9.1 General9.1.1 Manufacturers who provided battery holders intended for applications where corrosion may beencountered can choose to have the corrosion tests conducted. The results will be included i
37、n the testrecord for the battery holder indicating that the holder has been investigated for corrosion effects.9.1.2 The battery holders shall be subjected to the Temperature Rise Test and the Jarring Test afterbeing subjected to the corrosive atmosphere tests described in 9.2 and 9.3. The battery h
38、oldersconditioned by corrosion shall operate as intended, withstand the jarring test and not have a temperaturerise which (1) exceeds 100C when the temperature rise is added to the room temperature or (2) exceedsby more than 30 percent the temperature rise of the as received holders. The samples are
39、 to be mountedin the horizontal position on a platform approximately 2 in. (50.8 mm) above the bottom of the exposurechamber. The relative humidity inside the chamber during the test is to be approximately 95 percent andthe temperature approximately 23 2 (73.4 3F).OCTOBER 9, 2001 SUBJECT 2069 99.2 M
40、oisture hydrogen sulfide-air mixture exposure9.2.1 Samples are to be exposed to a moist hydrogen sulfide-air mixture in a closed glass chamber fora period of 10 days. On the first through fourth and seventh through tenth days, an amount of hydrogensulfide equivalent to 0.1 percent of the volume of t
41、he chamber is to be introduced in the chamber from acommercial gas cylinder, the volume required being measured with a flowmeter and stopwatch. Prior toeach introduction of gas, the remaining gas-air mixture from the previous day is to be thoroughly purgedfrom the chamber. On the fifth and sixth day
42、 of the exposure, the chamber is to remain closed and nopurging or introduction of gas is to be provided. During the exposure, the gas-air mixture is to be gentlystirred by means of a small motor driven fan located in the upper middle portion of the chamber. A smallamount of water (10 ml/0.003 m3of
43、chamber volume) is to be maintained at the bottom of the chamberfor humidity.9.3 Moisture carbon dioxide-sulfur dioxide-air mixture exposure9.3.1 Samples are to be exposed to a moist carbon dioxide-sulfur dioxide-air mixture in a closed glasschamber for a period of 10 days. On the first through four
44、th and seventh through tenth days, an amountof carbon dioxide equivalent to 1.0 percent of the volume of the chamber, plus an amount of sulfur dioxideequivalent to 0.5 percent of the volume of the chamber, is to be introduced. On the fifth and sixth day ofthe exposure period, the chamber is to remai
45、n closed and no purging or introduction of gas is to beprovided. A small amount of water (10 ml/0.003 m3of chamber volume) is to be maintained at the bottomof the chamber for humidity.10 Additional Considerations10.1 Polymeric materials shall have at least a flammability classification of HB as spec
46、ified in theStandard for Tests for Flammability of Plastic Materials for Parts in Devices and Appliances, UL 94, thetest method for which can be found in ASTM D635, Standard Test Method for Rate of Burning and/orExtent and Time of Burning of Plastics in a Horizontal Position (IEC 60707, Flammability
47、 of SolidNon-Metallic Materials When Exposed to Flame Sources List of Test Methods, ISO/DIS 1201.2, Plastics Determination of the Burning Behavior of Horizontal and Vertical Specimens in Contact with a SmallFlame Ignition Source), and have a minimum Relative Thermal Index of 100C, which is to be bas
48、ed uponan evaluation of long-term thermal-aging data obtained under a program described in the Standard forPolymeric Materials Long Term Property Evaluations, UL 746B. Polymeric materials shall also complywith the tests contained in the Standard for Polymeric Materials Use in Electrical Equipment Evaluations,UL 746C. Also, battery holders intended to be used with rechargeable batteries shall be constructed suchthat he positive and negative electrodes cannot be made to contact when the battery is not present.OCTOBER 9, 2001SUBJECT 206910
