Evaluation of Three Recent Models of UPS for Intersection Traffic Signals with LEDs

Transcription

1 Civil Engineering Stuies Trnsporttion Engineering Series No. 139 Trffi Opertions L Series No. 16 UILU-ENG ISSN Evlution of Three Reent Moels of UPS for Intersetion Trffi Signls with LEDs By Mhv V. Chitturi Rhim F. Benekohl A stuy onute y Trffi Opertions Lortory Deprtment of Civil n Environmentl Engineering University of Illinois t Urn-Chmpign Prepre for Illinois Deprtment of Trnsporttion July 2005

2 Tehnil Report Doumenttion Pge 1. Report No, FHWA-IL/UI-TOL Government Aession No. 3. Reipient's Ctlog No 4. Title n Sutitle Evlution of Three Reent Moels of UPS for Intersetion Trffi Signls with LEDs 5. Report Dte July 15, Performing Orgniztion Coe 7. Author(s) Mhv V. Chitturi n Rhim F. Benekohl 8. Performing Orgniztion Report No. UILU-ENG Performing Orgniztion Nme n Aress 10. Work Unit (TRAIS) Deprtment of Civil n Environmentl Engineering University of Illinois t Urn-Chmpign 205 N. Mthews Ave. Urn, Illinois Contrt or Grnt No. 13. Type of Report n Perio Covere Projet Report Sponsoring Ageny Nme n Aress The Illinois Deprtment of Trnsporttion 14. Sponsoring Ageny Coe 15. Supplementry 16. Astrt Uninterruptile Power Supply (UPS) systems re use to power the intersetion trffi signls tht hve Light Emitting Dioe (LED) signl moules, in se of power filure. The ojetive of this stuy ws to test the PB2000ITS UPS mnufture y US Trffi Corp., ME1000 UPS from TehPower Developments In n DUI 24M11 from Dimensions Unlimite In, n verify if they meet the Illinois DOT s speifition for UPS systems for trffi signls with LED moules. These were the most upte moels furnishe y the mnufturers t the time. Multiple tests with full lo (pproximtely 700 W) were onute t room temperture to etermine hrge n ishrge times. For PB2000ITS the verge run time ws 3:31 n verge rehrge time ws 16:25 t room temperture. For ME1000, the verge ishrge n rehrge times were 2:32 n 42:16 respetively t room temperture. For DUI 24M11 the verge ishrge n rehrge times were 3:57 n 18:58 respetively t room temperture. All the UPS systems meet the mjority of the IDOT Speifition requirements, ut h some minor shortomings. 17. Key Wors 18. Distriution Sttement Uninterruptile Power Supply for Intersetions, UPS, Intersetion Trffi Signls, LED Signl Moules, Bttery Bk up System for Trffi Lights, BBS. 19. Seurity Clssif. (of this report) Unlssifie 20. Seurity Clssif. (of this pge) Unlssifie 21. No. of Pges Prie `Form DOT F (8-72) Reproution of omplete pge uthorize ii

3 Aknowlegment n Dislimer This stuy ws onute y the Trffi Opertions Lortory (TOL) t the University of Illinois t Urn-Chmpign. The Illinois Deprtment of Trnsporttion sponsore the stuy. The ontents of this report reflet the views of the uthors who re responsile for the fts n ury of the t presente herein. The ontents o not reflet the offiil views or poliies of the Illinois Deprtment of Trnsporttion. This report oes not onstitute stnr, speifition, or regultion. iii

4 TABLE OF CONTENTS OBJECTIVE... 1 METHODOLOGY... 1 COMPANY LITERATURE... 1 QUESTIONS FOR MANUFACTURERS... 2 VISUAL INSPECTION... 2 LABORATORY EXPERIMENT... 2 NO n NC Rely Contt Closures... 2 Swithing from AC to UPS n k... 3 Dishrge n Rehrge Times... 3 TEST RESULTS... 4 MYERS PB2000ITS... 4 TECHPOWER ME Swithing from AC to UPS n k... 9 DIMENSIONS 24M SUMMARY OF FINDINGS REFERENCES APPENDIX A APPENDIX B APPENDIX C iv

5 OBJECTIVE The ojetive of this stuy is to test the Uninterruptile Power Supply (UPS) systems provie y the mnufturers n verify whether they meet the Speifition for UPS systems evelope y the Illinois Deprtment of Trnsporttion (IDOT) (1). The evlutions were onute t the Trffi Opertions L t the University of Illinois. Myers Power Prouts, TehPower Developments, In. n Dimensions Unlimite, In. re prospetive suppliers of UPS systems for IDOT. Myers Power Prouts furnishe unit of eh of two of their UPS moels: PB1250PC n PB2000ITS. Similrly, TehPower Developments, In. furnishe unit eh of its M1000 n ME1000 UPS systems. The results of evlution of Myers PB1250PC n TehPower M1000, whih were supplie erlier, hve een pulishe (2,3). Dimensions Unlimite, In. furnishe its DUI 24M11 UPS for evlution. This report isusses the methoology for testing (the sme methoology tht ws use for testing the erlier moels) n the results of the evlutions of Myers PB2000ITS, TehPower ME1000 n DUI 24M11 UPS systems performe t room temperture onitions. METHODOLOGY IDOT hs evelope UPS Speifition (1) tht is moele fter the ClTrns Speifition. Bse on the isussions with IDOT representtives, the vrious requirements of (luses) the UPS Speifition were lssifie into four tegories: Informtion tht is in ompny literture Questions ske from mnufturers/suppliers Visul inspetion of the unit Lortory experiment The tegories in whih eh of the luses ws ple is shown in the Appenies A-C. Compny Literture The mnufturer s literture ws reviewe to see to wht egree the literture lims tht the requirements of the Speifition re met. In generl the luses whih oul not e esily verifie in the Trffi Opertions Lortory were lssifie uner this tegory. For exmple, operting temperture for oth the inverter/power trnsfer rely n mnul ypss swith shll e -37 C to +74 C (1.4 in IDOT Speifition). For ll the luses groupe uner this tegory it ws eie tht literture provie y the ompny woul e use for verifition. The literture provie y the ompnies ws stuie. 1

6 Questions for Mnufturers The mnufturers were ontte n requeste to provie itionl informtion if it ws not ler from the literture whether their moels stisfie ertin luses. Also they were ske to provie ertifitions for the lims me in their literture, if ville. The luses in setion 5 of the Speifition el with the Qulity Assurne progrm, esign qulifition testing, n Proution qulity ontrol testing employe y the mnufturers. For exmple, QA proess n test results oumenttion shll e kept on file for minimum perio of seven yers (5.2 in IDOT Speifition). Sine this informtion is not puli knowlege, it ws eie tht pproprite questions e sent to the mnufturers to sertin if they stisfie these luses. Questions were sent to the mnufturers n their responses hve een inorporte in the report. Visul Inspetion For heking whether the UPS met ertin luses of the speifition, visul inspetion ws suffiient. For exmple, the temperture sensor shll e externl to the inverter/hrger unit. The temperture sensor shll ome with 2 meters (6 6 ) of wire (1.6.1 in IDOT Speifition). A visul hek ws performe on the moels n the results were inorporte. Lortory Experiment Certin luses of the speifition oul e verifie y running simple experiments, with reily ville equipment, t the Trffi Opertions L. For exmple, when the utility line power hs een restore t ove 105 VAC +/- 2 VAC for more thn 30 seons, the UPS shll ropout of ttery kup moe n return to utility line moe (1.11 in IDOT Speifition). The experiments performe were essentilly of three kins: rely ontt losures, swithing from AC to UPS n k, n ishrge n rehrge times of the tteries. NO n NC Rely Contt Closures The luses uner this group re relte to the four NO n NC (Normlly Open n Normlly lose) rely ontt losures tht nee to e provie n when they woul e energize. They re luses through For verifying these luses the events tht woul result in energizing the losures were rete n it ws verifie, if inee the losures were energize. For exmple, for verifying 1.3.1, while monitoring the rely, AC power ws shut own n it ws heke if the On Btt losure ws energize. Similr experiments were performe to verify the rest of the luses while monitoring the relys. 2

7 Swithing from AC to UPS n k The luses uner this group speify uner wht onitions the UPS shoul ypss/return to the utility power. Cluses 1.8, 1.11 n 1.12 ome uner this tegory. A vrile trnsformer ws use for reting the neessry moifitions to the AC voltge n it ws verifie if the UPS performe s it is suppose to. Dishrge n Rehrge Times The luses uner this tegory pertin to the urtion the tteries n power the lo n the urtion of hrging require for the tteries. They re n Dishrge Times: Aoring to the speifition, UPS STANDARD is require to power minimum lo of 700 W for minimum of two hours t room temperture. Using the LED signl moules n the intersetion pnel ville t the Trffi Opertions L, lo of roun 700 wtts ws set up. For mesuring the urtion of norml opertion, AC power ws shut own n the time the lo ws powere efore the tteries were shutown y the UPS to voi eep ishrge ws otine. Voltmeter Bttery Cinet Computer UPS n PTS Intersetion pnel, LED moules Controller Cinet AC Power Figure 1. Blok igrm of the experimentl setup. Rehrge times: After every ishrge experiment, the tteries were put to hrge. While the tteries were eing hrge their voltge ws monitore using voltmeter tht oul log in the voltge reings into omputer. One the tteries were fully hrge, the voltge of the tteries woul stilize. Using the voltge t logge in to the omputer y the voltmeter, the time for fully rehrging the tteries ws otine. It is expete tht there woul e some vriility in the ishrge n rehrge times of the tteries. Therefore multiple tests re require to sertin if the systems meet the speifitions. Severl tests were performe for otining the ishrge n rehrge times of the tteries t room temperture. Bse on 90 % onfiene level, smple size 3

8 n the vrine in the test results, the error in the estimte ws otine. It ws foun tht in ll the ses the error ws signifintly less thn the tolerle error. Therefore further testing ws not onute. The results of these tests re isusse in the Test Results setion of the report. To ompre the men vlues returne y the tests to the speifition requirements, t- tests were performe. The test ssoites onfiene level with whih one n onlue tht the men vlue is greter or lesser thn the speifition requirement. The finings of the evlution re presente in Appenix A. For eh luse of the speifition, the Does it meet the spe olumn inites if the UPS stisfies the requirements of the speifition. In the ourse of the evlution it ws foun tht there were severl instnes when the nswer to the question Does it meet the speifition? is not strightforwr or No. For this reson, se on our isussions with IDOT representtives, the responses in this olumn oul e, No, * n No*. n No lerly inite tht the system stisfies or oes not stisfy the speifition respetively. * n No* inite tht the system stisfies or oes not stisfy with some reservtion. Plese re the Comments olumn for n explntion of the speifi nswer. TEST RESULTS The results for MyersPB2000ITS UPS re presente first followe y the results for TehPower ME1000 UPS n Dimension 24M11 UPS. These were the most upte moels the mnufturer furnishe us t tht time. In eh setion the results for ishrging the tteries t full lo (700W) uner room temperture re presente followe y the results for rehrging. Myers PB2000ITS The UPS moel supplie y the mnufturer ws PB2000ITS n the tteries were Chirmn tteries (moel AGM-12100T, the sme tteries tht were use for evluting Myers PB1250PC UPS). The results of the ishrge tests performe t full lo for Myers PB2000ITS UPS t room temperture re shown in Tle 1 n Figure 2. 4

9 Test Numer Dte Durtion full lo ws powere (hh:mm) Beginning voltge (V) Cutoff voltge (V) 1 1/23/2004 3: /27/2004 3: /29/2004 3: /3/2004 3: /5/2004 3: Tle 1. Results of ishrge tests performe t room temperture for Myers PB2000ITS UPS To voi eep ishrge of the tteries, the UPS monitors the ttery voltge n isonnets the tteries from the UPS when the ttery voltge rehes ertin speifie voltge. Therefore run time of the tteries is iretly relte to the speifie utoff voltge. In generl, the eeper the ishrge tteries go through, the fewer the numer of yles of hrge n ishrge the tteries n enure. During the testing the ttery voltge ws monitore n the t ws logge into omputer. Tle 1 shows the y of test, the run time n the voltge of one of the tteries t the eginning of the test n when the tteries were isonnete y the UPS. The men voltge t the eginning of the test ws VDC n the men voltge t the shutown point ws VDC. The voltge t shutown vrie from to VDC. The estimte of the error from the true men, se on these oservtions, is 5.2 minutes whih is 4.4% of 2 hours (IDOT speifition requirement). Therefore more tests were not performe. From Figure 2, we n see tht the urtion onsistently exees the speifition requirement of powering full lo for 2 hours. Bse on the results, the verge urtion the tteries powere the full lo ws 3:31 n the minimum n the mximum vlues re 3:20 n 3:42. Bse on these oservtions, n the results of t-test, it n e onlue tht the estimte men of 3:31 is greter thn 2:00 with onfiene level greter thn 99.9%. Therefore it n e onlue tht this system meets the speifition requirement for powering full lo. 5

10 Figure 2. Run time of Myers PB2000ITS t room temperture 4:19 3:50 3:21 3:20 3:36 3:42 3:34 3:24 Run time (h:mm) 2:52 2:24 1:55 1:26 0:57 0:28 0: Test # The results for fully hrging the tteries for Myers UPS re shown in Tle 2. The estimte of the error from the true men, se on these oservtions, is 25.4 minutes whih is 2.1% of 20 hours (IDOT speifition requirement). Therefore more tests were not performe. From Figure 3 we n see tht the time to fully hrge the tteries is onsistently n signifintly less thn the speifition requirement of 20 hours. The verge time to hrge the tteries fully ws 16:25 n the minimum n mximum vlues re 15:37 n 17:22. The speifition requires tht the rehrge time for the ttery, from protetive low-utoff to 80% or more of full ttery hrge pity, shll not exee twenty (20) hours. Bse on these oservtions, n the results of t-test, it n e onlue tht the estimte men of 16:25 is less thn 20:00 with onfiene level greter thn 99.9%. Therefore this system meets the speifition requirement for hrging the tteries. Test Numer Dte Chrging Time (hh:mm) 1 1/23/ :35 2 1/27/ :45 3 1/29/ :22 4 2/3/ :37 5 2/5/ :46 Tle 2. Results for fully hrging the tteries for Myers PB2000ITS UPS. 6

11 Figure 3. Rehrge times for Myers PB2000ITS t room temperture Rehrge time (h:mm) 19:12 16:48 14:24 12:00 9:36 7:12 4:48 2:24 0:00 16:35 15:45 17:22 15:37 16: Test # TehPower ME1000 The UPS system supplie y the mnufturer ws ME1000 n the tteries were Optim tteries (moel D34M, the sme tteries tht were use for evluting TehPower M1000 UPS). The results of the ishrge tests performe t full lo for Tehpower UPS re shown in Tle 3 n Figure 4. Test Numer Dte Durtion full lo ws powere (hh:mm) Beginning voltge (V) Cutoff voltge (V) 1 10/17/2003 2: /20/2003 2: /24/2003 2: /29/2003 2: /3/2003 2: /17/2003 2: /19/2003 2: /21/2003 2: /2/2003 2: /4/2003 2: Tle 3. Results of ishrge tests performe t room temperture for TehPower ME1000 UPS 7

12 During the testing the voltge of the ttery string ws monitore n the t ws logge into omputer. Tle 3 shows the y of test, the run time n the voltge of one of the tteries t the eginning of the test n when the tteries were isonnete y the UPS. The men voltge t the eginning of the test ws VDC n the men voltge t the shutown point ws VDC. The voltge t shutown vrie from to VDC. It shoul e note tht TehPower UPS is 24VDC system s oppose to Myers PB2000ITS whih is 48VDC system. From Figure 4, we n see tht the urtion onsistently exees the speifition requirement of powering full lo for 2 hours. The estimte of the error from the true men, se on these oservtions, is 4 minutes whih is 3.4% of 2 hours (speifition requirement). Therefore more tests were not performe. Bse on the results, the verge urtion the tteries powere the full lo ws 2:32 n the minimum n the mximum vlues re 2:20 n 2:41. Bse on these oservtions, n the results of t-test, it n e onlue tht the estimte men of 2:32 is greter thn 2:00 with onfiene level greter thn 99.9%. Therefore it n e onlue tht this system meets the speifition requirement for powering full lo. 3:01 2:31 Figure 4. Durtion of ttery power (hh:mm) t room temperture for TehPower ME1000 UPS 2:41 2:40 2:38 2:35 2:36 2:31 2:29 2:28 2:22 2:20 Durtion (hh:mm) 2:00 1:30 1:00 0:30 0: Test # The results for fully hrging the tteries for TehPower UPS re shown in Tle 4. From Tle 4 we n see tht the urtion to fully hrge the tteries is onsistently higher thn 24 hours. It shoul e note tht the previous moel furnishe for evlution lso took longer thn 24 hours for hrging the tteries ompletely. The mnufturer lime tht the previous unit ws efetive n furnishe the newer moel. As it is evient from Tle 4, the time to rehrge the tteries ompletely rnge from 37:55 to 45:35. Therefore the TehPower ME1000 unit oes not meet the speifition requirement for hrging the tteries. 8

13 Test Numer Dte Chrging Time (hh:mm) 1 10/20/ : /24/ : /17/ : /19/ : /2/ :55 Tle 4. Results for fully hrging the tteries for TehPower UPS. Swithing from AC to UPS n k The voltges t whih the UPS swithes from AC power to UPS were mesure for TehPower ME1000 UPS n re presente in Tle 5. As shown in Tle 5 these re ifferent from the vlues speifie in the IDOT speifition. Senrio Line to Bttery Bttery to Line Line to Bttery Bttery to Line Speifition Requirement (VAC) TehPower ME 1000 voltge (VAC) 100 ± ± ± 2 > ± 2 unknown Tle 5. Swithing voltges of TehPower ME 1000 Vs Speifition requirements. Some UPS systems provie power onitioning y using Buk n Boost fetures. When the line voltge rops elow 110 VAC, ut is greter thn lower limit, the UPS woul step-up the line voltge to 110 VAC. This is lle Boost. Similrly if the voltge is greter thn 110 VAC, ut lesser thn n upper limit, the UPS woul step-own the voltge to 110 VAC. This is lle Buk. When the line voltge is greter thn the upper limit or lesser thn the lower limit, the UPS woul isonnet the line power n supply ttery power. 9

14 The TehPower ME 1000 uses Buk n Boost pility to run the system on AC power without swithing to tteries. Therefore, the tteries re not use unless the AC voltge level flls to 75 V or goes ove 140V. The tul threshols it uses re shown in Tle 6. Senrio Voltge (V) From Boost to Bttery 75 From Bttery to Boost 80 From Line to Boost 105 From Boost to Line 109 From Buk to Line 122 From Line to Buk 128 From Bttery to Buk Unknown From Buk to Bttery > 140 Tle 6. Voltges t whih swithing tkes ple for TehPower ME 1000 From Tle 6 it n e seen tht ME1000 UPS swithes to Boost moe when the AC voltge rops to 105 VAC n returns to Line moe when the voltge rehes 109 VAC. Similrly it goes into uk moe when the voltge exees 128 VAC n returns to Line moe when the voltge rehes 122 VAC. TehPower ME 1000 oes not use the tteries unless the line voltge is less thn 75VAC or greter thn 140 VAC. Therefore it woul use the tteries fewer numer of times thn wht it woul hve if it were to follow the speifition s threshols for swithing. Though it oes not stisfy the IDOT speifition, this feture of TehPower ME 1000 is vntgeous from the prtil point of view when the qulity of AC power t n intersetion is poor. Dimensions 24M11 The UPS moel supplie y the mnufturer ws 24M11 n tteries were Dek Unigy tteries (moel AGM-12100T). It shoul e note tht this system is lso (like 10

15 TehPower ME1000) 24 VDC system. The results of the ishrge tests performe t full lo for Dimension 24M11 UPS t room temperture re shown in Tle 7 n Figure 5. Test Numer Dte Durtion full lo ws powere (hh:mm) Beginning voltge (V) Cutoff voltge (V) 1 1/21/2005 3: /26/2005 3: /27/2005 2: /29/2005 2: /31/2005 2: Tle 7. Results of ishrge tests performe t room temperture for Dimension 24M11 UPS Tle 7 shows the y of test, the run time n the voltge of the ttery string t the eginning of the test n when the tteries were isonnete y the UPS. The men voltge t the eginning of the test ws VDC n the men voltge t the shutown point ws VDC. The voltge t shutown vrie from to VDC. The estimte of the error from the true men, se on these oservtions, is 2.6 minutes whih is 2.1% of the IDOT speifition requirement of 2 hours. Therefore more tests were not performe. From Figure 5, we n see tht the urtion onsistently exees the speifition requirement of powering full lo for 2 hours. Bse on the results, the verge urtion the tteries powere the full lo ws 2:57 n the minimum n the mximum vlues re 2:52 n 3:03. Bse on these oservtions, n the results of t-test, it n e onlue tht the estimte men of 2:57 is greter thn 2:00 with onfiene level greter thn 99.9%. Therefore it n e onlue tht this system meets the time requirement of the speifition for powering full lo. 11

16 Figure 5. Run Times of Dimensions 24M11 UPS t room temperture 3:21 2:52 3:03 3:00 2:55 2:52 2:55 2:24 Run Time (h:mm) 1:55 1:26 0:57 0:28 0: Test # The results for fully hrging the tteries for Dimensions 24M11 UPS re shown in Tle 8. The estimte of the error from the true men, se on these oservtions, is 28.1 minutes whih is 2.3% of the IDOT speifition requirement of 20 hours. Therefore more tests were not performe. Figure 6 shows the time neee to fully hrge the tteries. The verge time to fully hrge the tteries ws 18:58 n the minimum n mximum vlues re 18:14 n 20:17. The speifition requires tht the rehrge time for the ttery, from protetive low-utoff to 80% or more of full ttery hrge pity, shll not exee twenty (20) hours. Bse on these oservtions, n the results of t-test, it n e onlue tht the estimte men of 18:58 is less thn 20:00 with onfiene level greter thn 95%. Therefore this system meets the time requirement of the IDOT speifition for hrging the tteries. Test Numer Dte Chrging Time (hh:mm) 1 1/26/ :23 2 1/29/ :57 3 1/31/ :00 4 3/30/ :17 5 4/8/ :14 Tle 8. Results for fully hrging the tteries for Dimensions 24M11 UPS. 12

17 Figure 6. Rehrge Times for Dimensions 24M11 UPS t room temperture 21:36 19:12 18:23 18:57 19:00 20:17 18:14 16:48 Rehrge Time (h:mm) 14:24 12:00 9:36 7:12 4:48 2:24 0: Test # 13

18 SUMMARY OF FINDINGS The verge run time with full lo (pproximtely 700 W) t room temperture for Myers PB2000ITS ws 3 hrs 31 min n the verge time to hrge the tteries fully t room temperture ws 16 hrs 25 min. Myers PB1250PC UPS meets the speifition requirements for run time n rehrge time. The run time epens on temperture n utoff voltge n the men voltge of ttery t the shutown point ws VDC. Detils on how Myers PB2000ITS meets eh speifi requirement of the IDOT Speifition re given in Appenix A. The mjor shortomings of this moel re: this moel oes not hve NO n NC ontt losure for initing inverter/hrger filure. Also the fn in the ttery inet runs on 48VDC s oppose to the speifition requirement of running on AC power. This moel hs some minor shortomings suh s not proviing suffiiently long les, or-level shemti n wiring igrms et. In summry, Myers PB2000ITS UPS meets the mjority of the IDOT Speifition requirements. It hs the two mjor n some minor shortomings tht n e orrete to stisfy ll IDOT Speifition requirements. The verge run time with full lo (pproximtely 700 W) t room temperture for TehPower ME1000 ws 2 hrs 32 min n the verge time to hrge the tteries fully t room temperture ws 42 hrs 16 min. The run time t full lo meets the speifition requirements. However the TehPower ME1000 UPS oes not stisfy the IDOT speifition requirement for rehrging the tteries. The men voltge of the ttery string t the shutown point ws VDC. Detils on how TehPower ME1000 meets eh speifi requirement of the IDOT Speifition re given in Appenix B. The mjor shortomings of this moel re: The hrge time t room temperture oes not stisfy the speifition requirements. This moel oes not hve NO n NC ontt losure for initing tht the tteries rehe 40% level. The speifition requires tht eh UPS e given minimum 100 hr urn-in perio to th ny premture filures. However, the mnufturer gives 100 hr urn-in perio only to rnomly pike units. The supplie tteries re 55 Amp-hr while the speifition requires them to e t lest 65 Amp-hr. The UPS oes not hve temperture sensor for mesuring the temperture of the ttery. Also the UPS oes not shutown the hrging of the tteries when their temperture exees 50 C. The mnufturer is yet to supply ttery inet for evlution. This moel lso oes not stisfy some itionl speifition requirements. These inlue: The UPS swithes to Line Power s soon s the power is restore inste of witing for 30 seons s require y the Speifition. Also, the voltges t whih the UPS ypsses line power re ifferent from the Speifition requirements. But s esrie previously, this feture of TehPower might tully e helpful in rel worl situtions. In summry, TehPower ME1000 UPS hs some mjor n minor shortomings tht n e orrete to stisfy ll IDOT Speifition requirements. The verge run time with full lo (pproximtely 700 W) t room temperture for Dimensions 24M11 UPS ws 2 hrs 57 min n the verge time to hrge the tteries fully t room temperture ws 18 hrs 58 min. The run time t full lo n the rehrge time of the Dimensions 24M11 UPS meet the speifition requirements. The men 14

19 voltge of the ttery string t the shutown point ws VDC. Detils on how Dimensions 24M11 meets eh speifi requirement of the IDOT Speifition re given in Appenix C. The mjor shortomings of this moel re: This UPS is not line intertive n oes not provie voltge regultion n power onitioning when utilizing utility power. This moel oes not hve NO n NC ontt losure for initing inverter/hrger filure. The speifition requires tht eh UPS e given minimum 100 hr urn-in perio to th ny premture filures. However, the mnufturer gives only 3 hr urn-in perio to the units. The mnufturer i not supply ttery inet for evlution. This moel lso oes not stisfy some itionl speifition requirements suh s not proviing or level shemti n wiring igrms, n tteries not initing mximum rehrge t n rehrging yles. In summry, Dimensions 24M11 UPS hs some mjor n minor shortomings tht n e orrete to stisfy ll IDOT Speifition requirements. 15

20 REFERENCES 1. Illinois Deprtment of Trnsporttion, Bureu of Opertions. Speifition for Uninterruptile Power Supply For Trffi Signls utilizing Light Emitting Dioes (LED) Trffi Signl Moules, Springfiel, Chitturi M.V. & R.F. Benekohl. Evlution of UPS for Intersetion Trffi Signls with LEDs: Finings for Myers PB1250PC UPS. University of Illinois Urn-Chmpign, TOL Series 7, De Chitturi M.V. & R.F. Benekohl. Evlution of UPS for Intersetion Trffi Signls with LEDs: Finings for TehPower M1000 UPS. University of Illinois Urn-Chmpign, TOL Series 9, De

21 Appenix A Finings for Myers PB2000ITS UPS The tle elow shows the lssifition of the ifferent luses of the Speifition into ) Compny Literture ) Question for Mnufturer ) Visul Inspetion ) Lortory Experiment Note: For rows whih ontin "*" or "No*" in "Does it meet the spe" olumn, plese re the "Comments" olumn Cluse # Cluse Metho Comments Does it meet the spe? 1 1 The UPS shll e line intertive n provie voltge regultion n power onitioning when utilizing utility power. Mnufturer's reponse:"the UPS provies voltge regultion n power onitioning vi uk n oost. The UPS is Line Intertive" The UPS shll provie minimum two (2) hours or minimum six (6) hours of full run-time opertion for n LED-only intersetion (minimum 700W/1000VA tive output pity, with 80% minimum inverter effiieny). The two UPS, iffering in the minimum urtion of full run-time opertion, shll e esignte s UPS STANDARD n UPS EXTENDED respetively. Rn five yles of ihrge t room temperture. for UPS STANDARD 1 2 The mximum trnsfer time from loss of utility power to swithover to ttery ke inverter power shll e 65 milliseons. Mnufturer verifie tht the trnsfer time is 60 milliseons. 1 3 The UPS shll provie the user with 4-sets of normlly open (NO) n normlly lose (NC) single-pole oule-throw (SPDT) rely ontt losures, ville on pnel-mounte terminl lok, rte t minimum 120V/1A, n lele so s to ientify eh ontt (Mnul Bypss Swith n Rely Contts Stnr). Six Progrmmle ontt losures re provie The first set of NO n NC ontt losures shll e energize whenever the unit swithes to ttery power. Contt shll e lele or mrke On Btt. Experimente 17

22 The seon set of NO n NC ontt losures shll e energize whenever the ttery pprohes pproximtely 40% of remining useful pity. Contt shll e lele or mrke Low Btt. The thir set of NO n NC ontt losures shll e energize two hours fter the unit swithes to ttery power. Contt shll e lele or mrke Timer. Experimente Experimente The fourth set of NO n NC ontt losures shll e energize in the event of inverter/ hrger filure. Contt shll e lele or mrke UPS Fil. No* 1 4 Operting temperture for oth the inverter/power trnsfer rely n mnul ypss swith shll e -37 C to +74 C (-35 F to 165 F). Verifie with the Mnufturer 1 5 Both the Power Trnsfer Rely n Mnul Bypss Swith shll e rte t 240VAC/30 mps, minimum. Verifie with the mnufturer 1 6 The UPS shll use temperture-ompenste ttery hrging system. The hrging system shll ompenste over rnge of mv/ C or ( mv/ F) per ell. Verifie with the mnufturer The temperture sensor shll e externl to the inverter/hrger unit. The temperture sensor shll ome with 2 meters (6.5 ft) of wire. 1 7 Btteries shll not e rehrge when ttery temperture exees 50 C ± 3 C (122oF + 5oF). Verifie with the mnufturer 1 8 UPS shll ypss the utility line power whenever the utility line voltge is outsie of the following voltge rnge: 100VAC to 130VAC (± 2VAC). Use vrile trnsformer to moify line power 1 9 When utilizing ttery power, the UPS output voltge shll e etween 110 VAC n 125 VAC, pure sine wve output, 3% THD, 60Hz ±3Hz. Voltge etween 110 n 125 V, Frequeny 60+/- 3 Hz 1 10 UPS shll e omptile with Illinois DOT s trffi ontroller ssemlies utilizing NEMA TS 1 or NEMA TS 2 ontrollers n inet omponents for full time opertion. Teste UPS in TS2 Type 1 inet 1 11 When the utility line power hs een restore t ove 105 VAC ±2 VAC for more thn 30 seons, the UPS shll ropout of ttery kup moe n return to utility line moe. Use vrile trnsformer to moify line power 18

23 1 12 When the utility line power hs een restore t elow 125VAC ±2 VAC for more thn 30 seons, the UPS shll ropout of ttery kup moe n return to utility line moe. Use vrile trnsformer to moify line power 1 13 UPS shll e equippe to prevent mlfuntion feek to the inet or from feeing k to the utility servie. Verifie with the mnufturer 1 14 In the event of inverter/hrger filure, the power trnsfer rely shll revert to the NC stte, where utility line power is reonnete to the inet. Experimente 1 15 Rehrge time for the ttery, from protetive low -utoff to 80% or more of full ttery hrge pity, shll not exee twenty (20) hours. Rn five yles of ishrge n rehrge t room temperture Inverter/Chrger Unit shll e rk or shelf -mounte (Reserve) All interonnet wiring provie etween Power Trnsfer Rely, Bypss Swith n Cinet Terminl Servie Blok shll e no less thn 2 meters (6.5 ft) of #10 AWG wire. Rely ontt wiring provie for eh set of NO/NC rely ontt losure terminls shll e 2 meters (6 6 ) of #18 AWG wire. Wire is #14 AWG * Wire is #10 AWG * To ensure interhngeility etween ll UPS mnufturers, UPS Power Trnsfer Rely n Mnul Bypss Swith shll e interonnete with Type IV or Type V NEMA inets oring to the Deprtment stnrs (Reserve) 2 2 * ( Reserve) Inverter/Chrger, Power Trnsfer Rely n mnully operte Bypss Swith shll fit insie typil fully equippe Type IV or Type V NEMA Cinet tht houses one NEMA TS 1 or NEMA TS 2 ontroller. Inverter: PTS:Proly no No* Btteries shll e house in NEMA Stnr TS 2 rte inet, self supporte n mounte on the onrete fountion oring to the Deprtment stnrs. This externl ttery inet shll onform to the IDOT Stnr Speifitions for the onstrution n finish of the inet. Di not test for the onformne of the inet to IDOT Speifition * Btteries shll e mounte on iniviul shelves for the inet housing four (4) tteries n two (2) tteries per shelf for the inet housing eight (8) tteries. Cinet provie n ommote only four tteries Four shelves shll e provie. Eh shelf shll support lo of 30 kg (66 l) minimum for single ttery or 60 kg (132 l) minimum for ul tteries (Reserve) Cinets housing four (4) tteries shll hve nominl outsie imensions of with 356 mm (14 in.) epth 229 mm (9 in.) n height within 1143 mm to 1397 mm (45 in. to 55 in.). Cinets housing eight (8) tteries shll hve nominl outsie imensions of with 711 mm (28 in.) epth 229 mm (9 in.), n height within 1143 mm to 1397 mm (45 in. to 55 in.). Clerne etween shelves shll e minimum of 254 mm (10 in.). 19

24 2 3 7 The ttery inet shll e ventilte through the use of louvere vents, filter, n one thermosttilly ontrolle fn s per NEMA TS 2 speifitions. Vent,Fn n Filter re there.venor lims tht fn meets NEMA TS2 Speifition The ttery inet fn shll e AC operte from the sme line output of the Mnul Bypss Swith tht supplies power to the Type IV or Type V Cinet. Fn runs on 48VDC, 1A No The ttery inet shll hve oor opening to the entire inet. The oor shll e tthe to the inet through the use of ontinuous stinless steel or luminum pino hinge. The inet shll e provie with min oor lok whih shll operte with trffi inustry onventionl No. 2 key. Provisions for ploking the oor shll e provie. Visully inspete The UPS with ttery inet shll ome with ll olts, onuits n ushings, gskets, shelves, n hrwre neee for mounting. Visully inspete. 3 1 The UPS shll inlue isply n /or meter to inite urrent ttery hrge sttus n onitions. LCD pnel n isply ttery voltge 3 2 The UPS shll hve lightning surge protetion omplint with IEEE/ANSI C Seeking ertifition from mnufturer * 3 3 The UPS shll e equippe with n integrl system to prevent ttery from estrutive ishrge n overhrge. Verifie with the mnufturer 3 4 The UPS n tteries shll e esily reple with ll neee hrwre n shll not require ny speil tools for instlltion. 3 5 The UPS shll inlue resetle front-pnel event ounter isply to inite the numer of times the UPS ws tivte n front-pnel hour meter to isply the totl numer of hours the unit hs operte on ttery power., front pnel event ounter n hour meter isply re resettle 3 6 Mnufturer shll inlue two (2) sets of equipment lists, opertion n mintenne mnuls, n or-level shemti n wiring igrms of the UPS, n the ttery t sheets. Only O & M mnuls re there. Others re not there No* 4 1 Iniviul tteries shll e 12V type, 65 mp-hour minimum pity t 20 hours, n shll e esily reple n ommerilly ville off the shelf. Btteries re 12 V 100 mp-hour 4 2 Btteries use for UPS shll onsist of 4 to 8 tteries with umultive minimum rte pity of 240 mp-hours. Provie 4 tteries eh 100 Amp-hr 4 3 Btteries shll e eep yle, ompletely sele, prismti lelium se AGM/VRLA (Asore Glss Mt/ Vlve Regulte Le Ai) requiring no mintenne. 4 4 Btteries shll e ertifie y the mnufturer to operte over temperture rnge of 25 C to +71 C (-13oF to 160oF). Brohure inites the sme rnge for ttery opertion. Verifire with the mnufturer 20

25 4 5 The tteries shll e provie with pproprite interonnet wiring n orrosion-resistnt mounting trys n/or rkets pproprite for the inet into whih they will e instlle. Provie 4 6 Btteries shll inite mximum rehrge t n rehrging yles. Btteries o not inite ny suh t No* 4 7 Bttery interonnet wiring shll e vi moulr hrness. Btteries shll e shippe with positive n negtive terminls pre-wire with re n lk ling tht termintes into typil power-pole style onnetor. Hrness shll e equippe with mting power-pole style onnetors for tteries n single, insulte plug-in style onnetion to inverter/hrger unit. Hrness shll llow tteries to e quikly n esily onnete in ny orer n shll e keye n wire to ensure proper polrity n iruit onfigurtion. 4 8 Bttery terminls shll e overe n insulte so s to prevent ientl shorting. 5 1 Eh UPS shll e mnufture in orne with mnufturer qulity ssurne (QA) progrm. The QA progrm shll inlue two types of qulity ssurne: (1) Design qulity ssurne n (2) Proution qulity ssurne. The proution qulity ssurne shll inlue sttistilly ontrolle routine tests to ensure minimum performne levels of UPS units uilt to meet this speifition n oumente proess of how prolems re to e resolve. Mnufturer Response: Aheres to ISO 9001 n 900. Meets ClTrns Spe * 5 2 QA proess n test results oumenttion shll e kept on file for minimum perio of seven yers. Mnufturer Response: Aheres to ISO 9001 n 900. Meets ClTrns Spe * 5 3 Bttery Bkup System esigns not stisfying esign qulifition testing n the proution qulity ssurne testing Conlusion Conlusion of this test performne requirements esrie elow shll not e lele, of the test vertise, or sol s onforming to this speifition The mnufturer, or n inepenent testing l hire y the mnufturer, shll perform esign Qulifition Testing on new UPS esigns, n when mjor esign hnge hs een implemente on n existing esign. A mjor esign hnge is efine s esign hnge (eletril or physil) whih hnges ny of the performne hrteristis of the system, or results in ifferent iruit onfigurtion. Mnufturer Response: s stnr prtie A single unit for eh esign shll e sumitte for Design Qulifition Testing. Venor furnishe Test units shll e sumitte to the Trffi Opertions L, 1605 Titn Drive, Rntoul, IL 61866, fter the mnufturer s testing is omplete. Venor furnishe Mnufturer s testing t shll e sumitte with test units for IDOT s verifition of Design Qulifition Testing t. Venor furnishe No 21

26 5 4 3 The smple systems shll e energize for minimum of 5 hours, with full lo of 700 wtts, t tempertures of +74 C n -37 C (+165oF n 35oF), exluing tteries, efore performing ny esign qulifition testing. Mnufturer Response: s stnr prtie Any filure of the UPS, whih reners the unit non-omplint with the speifition fter urn-in, shll e use for rejetion. Mnufturer Response: s stnr prtie For Design Qulifition Testing, ll speifitions will e mesure inluing, ut not limite to: Run time while in ttery kup moe, t full lo Proper opertion of ll rely ontt losures ( On-Btt, Low - Btt, Timer n UPS-Fil ). Inverter output voltge, frequeny, hrmoni istortion, n effiieny, when in ttery kup moe. All utility moe ttery kup moe trnsfer voltge levels. See UPS Spe 1.8, 1.11 n Power trnsfer time from loss of utility power to swithover to ttery ke inverter power Bkfee voltge to utility when in ttery kup moe IEEE/ANSI C ompline. Seeking ertifition from mnufturer * Bttery hrging time. Verifie t room temperture only Event ounter n runtime meter ury Proution Qulity Control tests shll onsist of ll of the ove liste tests n shll e performe on eh new system prior to shipment. Filure to meet requirements of ny of these tests shll e use for rejetion. The mnufturer shll retin test results for seven yers. On eh unit, tests orresponing to , n re performe.one out of th of 300 units is pike n tests orresponing to n re performe. No* Eh UPS shll e given minimum 100-hour urn-in perio to th ny premture filures. Compny reponse: 100 hours Eh system shll e visully inspete for ny exterior physil mge or ssemly nomlies. Any efets shll e use for rejetion. Mnufturer Response: s stnr prtie The IDOT will perform rnom smple testing on ll shipments, onsistent with ANSI/ASQC Z Smpling Proeures n Tles for Inspetion y Attriutes. Smple testing will normlly e omplete within 90 ys fter elivery to the Trffi Opertions Lortory, rring efiienies in the shipment, whih woul reset the lok. Uner onsiertion Uner onsiertion 22

27 5 6 3 All prmeters of the speifition my e teste on the shipment smple The numer of units teste (smple size) shll e etermine y the quntity in the shipment. The smple size n eptne or rejetion of the shipment shll onform to ANSI/ASQC Z1.4. Uner onsiertion 6 0 Mnufturers shll provie two (2) yer ftory-repir wrrnty for prts n lor on the UPS from te of eptne y the Stte. Btteries shll e wrrnte for full replement for two (2) yers from te of purhse. The wrrnty shll e inlue in the totl i prie of the UPS. Wrrnty sttes tht the wrrnty is vli for 24 months from the te of Mnufture, NOT te of eptne y the stte. Also for tteries the wrrnty is provie y the originl mnufturer n NOT Myers. * 23

28 Appenix B Finings for TehPower ME1000 UPS The tle elow shows the lssifition of the ifferent luses of the Speifition into e) Compny Literture f) Question for Mnufturer g) Visul Inspetion h) Lortory Experiment Note: For rows whih ontin "*" or "No*" in "Does it meet the spe" olumn, plese re the "Comments" olumn Cluse # Cluse Metho Comments Does it meet the spe? 1 1 The UPS shll e line intertive n provie voltge regultion n power onitioning when utilizing utility pow er. Line Intertive UPS. Verifie with Mnufturer The UPS shll provie minimum two (2) hours or minimum six (6) hours of full run-time opertion for n LED-only intersetion (minimum 700W/1000VA tive output pity, with 80% minimum inverter effiieny). The two UPS, iffering in the minimum urtion of full run-time opertion, shll e esignte s UPS STANDARD n UPS EXTENDED respetively. Rn ten tests of ishrge t room temperture. for UPS STANDA RD 1 2 The mximum trnsfer time from loss of utility power to swithover to ttery ke inverter power shll e 65 milliseons. Trnsfer time is etween 2 n 6 milliseons. 1 3 The UPS shll provie the user with 4-sets of normlly open (NO) n normlly lose (NC) single-pole oule-throw (SPDT) rely ontt losures, ville on pnel-mounte terminl lok, rte t minimum 120V/1A, n lele so s to ientify eh ontt (Mnul Bypss Swith n Rely Contts Stnr). Four NO/NC ontt losures re provie on pnel The first set of NO n NC ontt losures shll e energize whenever the unit swithes to ttery power. Contt shll e lele or mrke On Btt. Two sets of ontt losures re provie. They re lele "AC Off" n "On Bttery". Both re energize when the unit swithes to ttery 24

29 1 3 2 The seon set of NO n NC ontt losures shll e energize whenever the ttery pprohes pproximtely 40% of remining useful pity. Contt shll e lele or mrke Low Btt. No rely is mrke "Low Btt" No The thir set of NO n NC ontt losures shll e energize two hours fter the unit swithes to ttery power. Contt shll e lele or mrke Timer. One of the relys is mrke "flsh". It is energize fter urtion hosen y the user. * The fourth set of NO n NC ontt losures shll e energize in the event of inverter/ hrger filure. Contt shll e lele or mrke UPS Fil. Experimente 1 4 Operting temperture for oth the inverter/power trnsfer rely n mnul ypss swith shll e -37 C to +74 C (-35 F to 165 F). Verifie with Mnufturer. 1 5 Both the Power Trnsfer Rely n Mnul Bypss Swith shll e rte t 240VAC/30 mps, minimum. Verifie with Mnufturer. 1 6 The UPS shll use temperture-ompenste ttery hrging system. The hrging system shll ompenste over rnge of mv/ C or ( mv/ F) per ell. Verifie with Mnufturer The temperture sensor shll e externl to the inverter/hrger unit. The temperture sensor shll ome with 2 meters (6.5 ft) of wire. No Temperture Sensor No 1 7 Btteries shll not e rehrge when ttery temperture exees 50 C ± 3 C (122oF + 5oF). Rehrging of the tteries oes not stop. No 1 8 UPS shll ypss the utility line power whenever the utility line voltge is outsie of the following voltge rnge: 100VAC to 130VAC (± 2VAC). Bypsses Line power when elow 75 VAC. Di not ypss even when utility power rehe 141 VAC. No* 1 9 When utilizing ttery power, the UPS output voltge shll e etween 110 VAC n 125 VAC, pure sine wve output, 3% THD, 60Hz ±3Hz. Voltge etween 110 n 125 V, Frequeny 60+/- 3 Hz 1 10 UPS shll e omptile with Illinois DOT s trffi ontroller ssemlies utilizing NEMA TS 1 or NEMA TS 2 ontrollers n inet omponents for full time opertion. Teste UPS in TS2 Type 1 Cinet 1 11 When the utility line power hs een restore t ove 105 VAC ±2 VAC for more thn 30 seons, the UPS shll ropout of ttery kup moe n return to utility line moe. Immeitely Restore No* 25

30 1 12 When the utility line power hs een restore t elow 125VAC ±2 VAC for more thn 30 seons, the UPS shll ropout of ttery kup moe n return to utility line moe. Immeitely Restore No* 1 13 UPS shll e equippe to prevent mlfuntion feek to the inet or from feeing k to the utility servie. Verifie with Mnufturer In the event of inverter/hrger filure, the power trnsfer rely shll revert to the NC stte, where utility line power is reonnete to the inet. Experimente 1 15 Rehrge time for the ttery, from protetive low -utoff to 80% or more of full ttery hrge pity, shll not exee twenty (20) hours. No Inverter/Chrger Unit shll e rk or shelf -mounte (Reserve) All interonnet wiring provie etween Power Trnsfer Rely, Bypss Swith n Cinet Terminl Servie Blok shll e no less thn 2 meters (6.5 ft) of #10 AWG wire Rely ontt wiring provie for eh set of NO/NC rely ont t losure terminls shll e 2 meters (6 6 ) of #18 AWG wire To ensure interhngeility etween ll UPS mnufturers, UPS Power Trnsfer Rely n Mnul Bypss Swith shll e interonnete with Type IV or Type V NEMA inets oring to the Deprtment stnrs (Reserve) 2 2 * ( Reserve) Inverter/Chrger, Power Trnsfer Rely n mnully operte Bypss Swith shll fit insie typil fully equippe Type IV or Type V NEMA Cinet tht houses one NEMA TS 1 or NEMA TS 2 ontroller. Inverter: PTS: presently mounte on the inet oor * Btteries shll e house in NEMA Stnr TS 2 rte inet, self supporte n mounte on the onrete fountion oring to the Deprtment stnrs. This externl ttery inet shll onform to the IDOT Stnr Speifitions for the onstrution n finish of the inet. No inet provie No* Btteries shll e mounte on iniviul shelves for the inet housing four (4) tteries n two (2) tteries per shelf for the inet housing eight (8) tteries. No inet provie No* Four shelves shll e provie. Eh shelf shll support lo of 30 kg (66 l) minimum for single ttery or 60 kg (132 l) minimum for ul tteries. No inet provie No* (Reserve) Cinets housing four (4) tteries shll hve nominl outsie imensions of with 356 mm (14 in.) epth 229 mm (9 in.) n height within 1143 mm to 1397 mm (45 in. to 55 in.). Cinets housing eight (8) tteries shll hve nominl outsie imensions of with 711 mm (28 in.) epth 229 mm (9 in.), n height within 1143 mm to 1397 mm (45 in. to 55 in.). Clerne etween shelves shll e minimum of 254 mm (10 in.). No inet provie No* 26

31 2 3 7 The ttery inet shll e ventilte through the use of louvere vents, filter, n one thermosttilly ontrolle fn s per NEMA TS 2 speifitions. No inet provie No* The ttery inet fn shll e AC operte from the sme line output of the Mnul Bypss Swith tht supplies power to the Type IV or Type V Cinet. No inet provie No* The ttery inet shll hve oor opening to the entire inet. The oor shll e tthe to the inet through the use of ontinuous stinless steel or luminum pino hinge. The inet shll e provie with min oor lok whih shll operte with trffi inustry onventionl No. 2 key. Provisions for ploking the oor shll e provie. No inet provie No* The UPS with ttery inet shll ome with ll olts, onuits n ushings, gskets, shelves, n hrwre neee for mounting. No inet provie No* 3 1 The UPS shll inlue isply n /or meter to inite urrent ttery hrge sttus n onitions. No inition of ttery sttus No 3 2 The UPS shll hve lightning surge protetion omplint with IEEE/ANSI C Seeking ertifition from mnufturer 3 3 The UPS shll e equippe with n integrl system to prevent ttery from estrutive ishrge n overhrge. Verifie with Mnufturer. 3 4 The UPS n tteries shll e esily reple with ll neee hrwre n shll not require ny speil tools for instlltion. 3 5 The UPS shll inlue resetle front-pnel event ounter isply to inite the numer of times the UPS ws tivte n front-pnel hour meter to isply the totl numer of hours the unit hs operte on ttery power. Resettle Event ounter isply provie. Hour meter not provie. No* 3 6 Mnufturer shll inlue two (2) sets of equipment lists, opertion n mintenne mnuls, n or-level shemti n wiring igrms of the UPS, n the ttery t sheets. Only one opy of User Mnul provie. Others re not. No* 4 1 Iniviul tteries shll e 12V type, 65 mp-hour minimum pity t 20 hours, n shll e esily reple n ommerilly ville off the shelf. Btteries re 12 V, 55 Amp-hour No 4 2 Btteries use for UPS shll onsist of 4 to 8 tteries with umultive minimum rte pity of 240 mp-hours. Provie 4 tteries, eh 55 Amp-hour No 4 3 Btteries shll e eep yle, ompletely sele, prismti lelium se AGM/VRLA (Asore Glss Mt/ Vlve Regulte Le Ai) requiring no mintenne. 4 4 Btteries shll e ertifie y the mnufturer to operte over temperture rnge of 25 C to +71 C (-13oF to 160oF). Verifie with Mnufturer. 27

32 4 5 The tteries shll e provie with pproprite interonnet wiring n orrosion-resistnt mounting trys n/or rkets pproprite for the inet into whih they will e instlle. None Provie. No Cinet provie. No* 4 6 Btteries shll inite mximum rehrge t n rehrging yles. Btteries o not inite ny suh t No* 4 7 Bttery interonnet wiring shll e vi moulr hrness. Btteries shll e shippe with positive n negtive terminls pre-wire with re n lk ling tht termintes into typil power-pole style onnetor. Hrness shll e equippe with mting power-pole style onnetors for tteries n single, insulte plug-in style onnetion to inverter/hrger unit. Hrness shll llow tteries to e quikly n esily onnete in ny orer n shll e keye n wire to ensure proper polrity n iruit onfigurtion. Hrness oes not hve mting power-pole style onnetors. Everything else is OK. No* 4 8 Bttery terminls shll e overe n insulte so s to prevent ientl shorting. No 5 1 Eh UPS shll e mnufture in orne with mnufturer qulity ssurne (QA) progrm. The QA progrm shll inlue two types of qulity ssurne: (1) Design qulity ssurne n (2) Proution qulity ssurne. The proution qulity ssurne shll inlue sttistilly ontrolle routine tests to ensure minimum performne levels of UPS units uilt to meet this speifition n oumente proess of how prolems re to e resolve. Verifie with Mnufturer. 5 2 QA proess n test results oumenttion shll e kept on file for minimum perio of seven yers. Verifie with Mnufturer. 5 3 Bttery Bkup System esigns not stisfying esign qulifition testing n the proution qulity ssurne testing Conlusion performne requirements esrie elow shll not e lele, of the test vertise, or sol s onforming to this speifition. Conlusion of this test The mnufturer, or n inepenent testing l hire y the mnufturer, shll perform esign Qulifition Testing on new UPS esigns, n when mjor esign hnge hs een implemente on n existing esign. A mjor esign hnge is efine s esign hnge (eletril or physil) whih hnges ny of the performne hrteristis of the system, or results in ifferent iruit onfigurtion. Mnufturer performs internlly n lso hs n inepenent testing A single unit for eh esign shll e sumitte for Design Qulifition Testing. Venor furnishe Test units shll e sumitte to the Trffi Opertions L, 1605 Titn Drive, Rntoul, IL 61866, fter the mnufturer s testing is omplete. Venor furnishe Mnufturer s testing t shll e sumitte with test units for IDOT s verifition of Design Qulifition Testing t. Venor furnishe No 28