UL SUBJECT 60692-2016 Outline of Investigation for Circuit Interrupters with Fire Extinguishing Agent for Use in Electrical Appliances and Components (Issue 1).pdf

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1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULJune 13, 20161UL 60692Outline of Investigation for Circuit Interrupters with Fire ExtinguishingAgent for Use in Electrical Appliances and ComponentsIssue Number: 1June 13, 2016Summary of TopicsTh

2、is First issue of the Outline of Investigation for Circuit Interrupters withFire Extinguishing Agent for Use in Electrical Appliances andComponents, UL 60692, covers devices that are intended to be installedon printed wiring boards or in freestanding end products, and underabnormal conditions actuat

3、e at a predetermined temperature to extinguishany existing fire while interrupting the electrical circuit. The requirementsof this Outline of Investigation are intended to supplement or modifythe clauses of the Standard for Thermal-Links Requirements andApplication Guide, UL 60691.ULs Outlines of In

4、vestigation are copyrighted by UL. Neither a printed norelectronic copy of an Outline of Investigation should be altered in any way. All ofULs Outlines of Investigation and all copyrights, ownerships, and rights regardingthose Outlines of Investigation shall remain the sole and exclusive property of

5、 UL.COPYRIGHT 2016 UL LLCUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULJUNE 13, 2016UL 606922No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULCONTENTS1 Scope .42 Res

6、erved 43 Terms and definitions 44 General Requirements .55 General Notes on Tests .56 Classification .76.1 Electrical conditions .76.2 Thermal conditions .77 Marking 78 Documentation .79 Construction Requirements .79.1 General .79.2 Lead Secureness tests 89.3 Contacts used for the current path 89.4

7、Accessible mounting brackets or metal parts .99.5 Insulating materials .99.8 Temperature and humidity cycle conditioning 99.9 Terminals and terminations .109.101 Supply conductor (Conductive trace) 109.102 Clean extinguishing agent 1010 Dielectric Strength Test 1010.1 General .1010.2 Insulation resi

8、stance 1110.3 Interrupting current .1110.4 Transient Overload Current Test .1310.5 Limited short-circuit test .1311 Temperature Tests 1311.101 Temperature Rise and Current-carrying Capacity Test 1312 Resistance to Rusting .1413 Manufacturers Validation Programme .14101 Sensitivity Oven Heat Test .14

9、102 Temperature Holding Test (TH) 16103 Thermal Endurance 16104 Cold Thermal Cycling Test 17105 Aging Test 17106 Functioning Test .18107 Manufacturers validation program .18JUNE 13, 2016 UL 60692 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM

10、UL1 Scope1.1 These requirements apply to Circuit Interrupters with Fire Extinguishing Agent (CIFEA) intended to beinstalled on printed wiring boards or in freestanding end products. These devices are intended to actuateunder abnormal conditions of the controlled load, at a predetermined temperature

11、to release anextinguishing agent while interrupting the electrical circuit.Note A CIFEA does not replace the function of a fuse.1.2 This Outline supplements or modifies the corresponding clauses of the Standard for Thermal-Links Requirements and Application Guide, UL 60691. Unless otherwise noted, a

12、ll clauses of UL 60691 areapplicable.1.3 These requirements are intended to address the inherent electrical safety of the product and theefficacy of the functionality. The effectiveness of such products when used in combination with a specificend-product is outside the scope of this outline of inves

13、tigation.Note The acceptability of a CIFEA in any particular application or appliance depends upon itsacceptability for continued use under the conditions that prevail in actual service. Compliance of a CIFEAto the requirements in this Outline evaluates the electrical and thermal attributes of the d

14、evice. Theserequirements are intended to be used in conjunction with the Safety Standard requirements of anend-product, to determine whether the device is acceptable for use in an end-use application.1.4 The requirements of this outline are limited to devices that, when actuated, expel fire extingui

15、shingagents that are non-conductive (Halocarbon clean agent) and will not adversely interfere with the safe useof the equipment under normal operating conditions.1.5 The outline is applicable to devices with a rated voltage not exceeding 600V.2 Reserved3 Terms and definitions3.1 Clause 3 of this sta

16、ndard is applicable except as follows:Replacement:3.3 HOLDING TEMPERATURE (TH) The maximum temperature at which the CIFEA can bemaintained while conducting rated current under ambient temperature, for a period of time specified bythe manufacturer which will not cause a change in state of conductivit

17、y to open circuit or activation offire extinguishment.3.4 HOMOGENEOUS SERIES A series of CIFEA having common overall construction, deviatingfrom each other only in such characteristics that, for a given test, the testing of one or a reducednumber of particular CIFEA of that series shall be taken as

18、representative for all the CIFEA of theseries.3.5 INTERRUPTING CURRENT, Ib The value of the current that the CIFEA is capable of interruptingat rated voltage and under specified circuit conditions.3.6 3.8 Not applicable3.9 RATED CURRENT, Ir The current used to classify normal usage of a CIFEA.JUNE 1

19、3, 2016UL 606924UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL3.10 RATED FUNCTIONING TEMPERATURE (TF) The temperature at which the CIFEA activates itsmeans of fire extinguishment resulting in a change of its state of conductivity to open cir

20、cuit.3.11 RATED VOLTAGE, Vr The voltage used to classify normal usage of a CIFEA.3.12 and 3.13 Not applicable3.14 TRANSIENT OVERLOAD CURRENT, Ip A direct current pulse train which the CIFEA is able towithstand without impairing its characteristics.Additional Sub-clauses:3.101 CIRCUIT INTERRUPTER WIT

21、H FIRE EXTINGUISHING AGENT (CIFEA) A temperaturesensitive device that actuates and releases the extinguishing agent at a predetermined temperature.The electrical supply is disconnected as a consequential result of this actuation.3.102 CLEAN EXTINGUISHING AGENT A fire suppression solution that is con

22、tained within theCIFEA. The agent is released at the rated functioning temperature.Note Electrically non-conducting, volatile, or gaseous fire extinguishant that does not leave a residueupon evaporation. The word “agent” as used in this document shall mean “clean agent” unless otherwiseindicated.3.1

23、03 BODY The part of the CIFEA which encloses the extinguishing agent and supports thecontacts.3.104 CONTACTS The external metallic parts of the CIFEA used to complete the circuit.3.105 AMBIENT AIR TEMPERATURE The temperature of the air surrounding the CIFEA.4 General RequirementsThis clause of the s

24、tandard is not applicable.5 General Notes on TestsThis clause of the standard is replaced as follows:5.101 Unless otherwise specified, only tests that are not required to be performed inside anenvironmental chamber and/or test oven shall be carried out under the following conditions:Temperature: 15C

25、 to 35CRelative Humidity: 25% to 75% Air pressure: 8.6 x 104 Pa to 1.06 x 105 PaThe required atmospheric conditions during testing shall be controlled when carrying out the tests andduring the duration of the tests. The required atmospheric conditions do not have to be maintained in atest laboratory

26、 when tests are not performed.JUNE 13, 2016 UL 60692 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL5.102 If the position of a CIFEA may influence the result of a test, the CIFEA is to be tested in the positionthat will produce the most adve

27、rse results.5.103 Tests shall be conducted for each temperature rating unless it can be shown that one design isrepresentative of others.5.104 Unless otherwise indicated, representative commercial samples shall be subjected to the testsdescribed in the respective clauses. All samples are to come fro

28、m one production lot.5.105 The tests required and the order of conducting the tests is specified in Table 1. For tests notreferenced in Table 1, other CIFEA samples are to be used, and the order of testing is not specified.Table 1Test scheduleClause orsubclauseTest Sample groupsABCDEFG7 Marking Test

29、 X11.101 Temperature Rise and Current-Carrying Capacity Test XXXX10.4 Transient Overload Current X102 Temperature Holding Test X105 Ageing X10.3 Interrupting Current X103 Thermal Endurance X104 Cold Thermal Cycling Test X11.101 Temperature Rise and Current-Carrying Capacity Test X1XXXX106 Functionin

30、g Test X X X101 Sensitivity Oven Heat Test X10.1 Dielectric Strength XXXXX10.5 Limited Short Circuit2XNOTE 1 Applicable only if the conductive element on the CIFEA does not open during the Interrupting current test.NOTE 2 If declared.5.106 The total number of samples required is 70. Out of a total o

31、f 70 samples, 24 are to be kept asspares in case some of the tests have to be repeated. Out of a total of 70 samples, 46 are divided intogroups assigned an alphabetical letter from A to G. Groups A through F consists of six samples each,while Group G consists of 10 samples.5.107 If a failure is repo

32、rted during any of the testing, the cause of the failure will be identified andcorrective action taken. Based on the failure analysis report and the corrective action, at a minimum, thattest sequence shall be repeated on twice the number of revised samples and no further failures arepermitted. If th

33、e failure analysis report indicates critical design flaws or inadequacies, the entire testprogram may need to be repeated.JUNE 13, 2016UL 606926UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL6 ClassificationThis clause of the standard is appl

34、icable except as follows:6.1 Electrical conditions6.1.1 Items c), d), e) and f) are not applicable.6.2 Thermal conditions6.2.1 Items c), d) and e) are not applicable.7 MarkingThis clause of the standard is applicable except as follows:- Replace THERMAL-LINK by CIFEA.- Add to item c) of 7.1: rated vo

35、ltage (V) and current (A).8 DocumentationThis clause of the standard is applicable except as follows:- Item f) is not applicable.- Replace THERMAL-LINK by CIFEA.9 Construction RequirementsThis clause of the standard is applicable except as follows:9.1 GeneralReplacement:9.1.1 Except as indicated in

36、9.1.2, a component of a product covered by this outline shall:a) Comply with the requirements for that component as indicated in this outline;b) Be used in accordance with its rating(s) established for the intended conditions of use;c) Be used within its established use limitations; andd) Additional

37、ly comply with the applicable requirements of this outline of investigation.JUNE 13, 2016 UL 60692 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL9.1.2 A component is not required to comply with a specific requirement that:a) Involves a feat

38、ure or characteristic not required in the application of the component in theproduct covered by this Outline, orb) Is superseded by a requirement in this Outline.9.1.3 A component shall be used in accordance with its rating established for the intended conditions ofuse.9.1.4 Specific components are

39、incomplete in construction features or restricted in performancecapabilities. Such components are intended for use only under limited conditions, such as certaintemperatures not exceeding specified limits, and shall be used only under those specific conditions.9.1.5 Current-carrying parts shall be c

40、onstructed in such a way that contact pressure is not transmittedthrough non-metallic material other than ceramic, or any material considered as having sufficientdimensional stability over the range of temperatures to be expected, unless there is sufficient resilience inthe corresponding metal parts

41、 to compensate for any shrinkage or distortion of the non-metallic material.9.1.6 Current-carrying parts shall have the necessary mechanical strength, be capable of carrying therated current and shall be of a material that is acceptable for the particular application.9.1.7 Friction shall not be used

42、 to secure uninsulated live parts (including terminals) to supportingsurfaces if there is a risk of such parts turning or shifting their position, resulting in the reduction ofclearance and creepage distances to less than those required elsewhere in this outline of investigation.9.1.8 Leads and term

43、inal parts shall be secured so that stress on them during installation and normal usedoes not impair operation of the CIFEA.9.2 Lead Secureness testsThis clause of this standard is not applicable.9.3 Contacts used for the current pathThis clause of this standard is not applicable.JUNE 13, 2016UL 606

44、928UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL9.4 Accessible mounting brackets or metal partsThis clause of this standard is not applicable.9.5 Insulating materialsReplacement:9.5.1 A base for the support of a live part shall be of strong

45、, noncombustible, moisture-resistant,insulating material.9.5.2 A material other than slate, porcelain or cold-molded composition, or one that is rated for thesupport of live parts shall be investigated under conditions of intended service to determine if it has thenecessary electrical and mechanical

46、 properties and is otherwise rated for the application.9.5.3 A base shall be constructed so that, considering the material used, it will withstand the most severecondition likely to be met in service.9.5.4 Insulating material, including a barrier between parts of opposite polarity and material that

47、may besubjected to the influence of an arc formed by opening a circuit, shall be rated for the application.9.5.5 Vulcanized fiber may be used for an insulating bushing, a washer, a separator, or a barrier, but notfor the sole support of an uninsulated live part of other than a low-voltage circuit.9.

48、5.6 Polymeric electrical insulating materials shall comply with the applicable requirements of theStandard for Polymeric Materials Use in Electrical Equipment Evaluations, UL 746C. The materials shallhave the appropriate flammability class required by UL 746C based on the equipment intended use. The

49、material flammability class is determined by tests in the Standard for Tests for Flammability of PlasticMaterials for Parts in Devices and Appliances, UL 94.9.5.7 Alternative to the requirements in 9.5.6, polymeric materials used in the construction of the CIFEAshall comply with clause H.9.5.101.9.8 Temperature and humidity cycle conditioningThis clause of this standard is not applicable.JUNE 13, 2016 UL 60692 9UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL9.9 Terminals and terminationsT