92006 Draft 2003 - nttworldwide.com

1 DESCRIPTIONR-Temp fluid is a fire Resistant Hydrocarbon Fluid(FRHF) dielectric coolant formulated for use indistribution transformers where its unique electrical,thermal and safety properties are fluid is essentially non-toxic1and readilybiodegradable2,3,4, making it eminently satisfactory toenvironmentalists. It is compatible with standardinsulating materials, and processing equipment andprocedures. R-Temp fluid also contains a proprietarychemical marker allowing confirmation via laboratorytests that it has not been diluted with other materials. R-Temp fluid is also referred to as a High fire PointFluid, a High Molecular Weight Hydrocarbon or a Less-Flammable Dielectric R-TEMP FLUID PROPERTIESDue to its excellent performance characteristics,applications forR-Temp fluid have expanded into avariety of other equipment, including sectionalizingswitches, electromagnets, voltage regulators, rectifiersand high voltage substations.

2 The fluid is also used foraskarel and oil retrofill applications and as a make-upfluid for askarel-filled PERFORMANCE HISTORYS ince the energization of prototypes in 1975, over100,000 R-Temp transformers have been installed,accumulating hundreds of thousands of unit-years ofreliable field service. The fire safety record has ,6 The monitoring of operating R-Temptransformers,including the earliest prototypes, has demonstratedR-Temp fluid to be exceptionally stable, without thesludge formation common to conventional mineral TRANSFORMERST ransformers filled with R-Temp fluid for indoor,submersible and outdoor applications are available froman extensive list of manufacturers in the United Statesand indoor applications, R-Temp transformers notonly provide the proven performance of liquid-filleddesign, but at a lower total owning cost than otheralternatives with equal transformers are also an excellent choicefor outdoor.

3 Network or subsurface vault installationswhere an extra margin of safety against explosion andfire is desired as compared to conventional where enhanced safety is recommendedinclude close proximity to buildings or valuableequipment, rooftop installations and close proximity topedestrian areas. Types of transformers presentlyoperating with R-Temp fluid include pole-mounted, pad-mounted, small and medium power substations (>700kV BIL), network and rectifier transformers have been widely accepted byindustry and government. The fluid's favorable healthand environmental properties make R-Temp transformersa frequent choice in food processing plants. ContactCooper Power Systems or your equipment supplier for acopy of the User's List, Bulletin FLUIDP ropertyValueTest MethodElectricalDielectric Strength56 kV @ 25 C ( in. gap)43 kV @ 25 CASTM D1816 ASTM D877 Relative Permittivity[Dielectric Constant] @ 25 CASTM D924 Dissipation Factor[Power Factor] @ 100 CASTM D924 Volume Resistivity1 X 1014W-cm @ 25 CASTM D1169 Physical and ChemicalSpecific @ 25 CASTM D1298 Interfacial Tension40 mN/m @ 25 CASTM D971 Acid Number5 x 10-3mg KOH/gASTM D974 Kinematic Viscosity113 cSt @ 40 CASTM D44512 cSt @ 100 CColorL D1500 ThermalFlash Point276 CASTM D92 fire Point312 CASTM D92 Pour Point-24 CASTM D97 Thermal X 10-4cal/(cm sec C) @ 25 CCPS MethodSpecific (cal/gm/ C) @ 25 CASTM D2766 Coefficient of x 10-4cc/cc/ C @ 25 CCPS MethodTypical properties subject to change without notice.

4 Contact CPSD ielectric Fluids for recommended acceptance values. Ask for R-Temp fluid Specification Guideline Bulletin 92006 Product InformationAugust, 2003(Supersedes June, 1997)(Applicationscontinued)RETROFILLING CONVENTIONAL OIL-FILLED TRANSFORMERSR-Temp fluid is well suited as a replacement fluid forupgrading the safety margin of conventional mineral oil-filled advantages for mineraloil retrofilling are high dielectric strength, excellentlubricity, material compatibility and a coefficient ofexpansion similar to conventional mineral Cooper Power Systems for (PCB) RETROFILLAll major retrofilling companies list R-Temp fluid as apermanent fluid option. R-Temp fluid advantages foraskarel retrofilling are high dielectric strength, excellentlubricity, material compatibility and a coefficient ofexpansion similar to FLUIDR-Temp fluid is fully miscible with askarel and oil.

5 Itmay be used as a make-up fluid for topping off eithertype of transformer. Using R-Temp fluids as a make-upfluid eliminates the risk and expense of storing andhandling askarel or other hazardous fluids such aschlorinated benzenes. For additional information,contactCooper Power Systems or your equipment SWITCHING DEVICESE xcellent dielectric strength, lubricity and arcsuppression make R-Temp fluid an excellent loadbreakswitching applications include newand retrofilled sectionalizing switches, voltage regulatorsand transformers with loadbreak accessories such asbayonet fusing, on-off switches, sectionalizing switchesand load tap changers. Due to viscosity differencescompared to conventional mineral oil, suitability of eachapplication should be reviewed by the APPLICATIONSThe inherent safety and performance features of R-Temp fluid have led to its application in electricalequipment other than transformers, including industrialelectromagnets, precipitator transformer/rectifier sets,power supplies for electrostatic painting equipment andelectron beam furnaces.

6 R-Temp fluid has excellentlubricity, an important characteristic for application inequipment with movable fluid has been successfully used in each ofthe listed applications. However, suitability of eachapplication of R-Temp fluid is the responsibility of SAFETYThe National fire Protection Association has nothad any report of fires caused by transformers filled withR-Temp attests to the fire resistance of R-Temp fluid and other listed less-flammable many large and small scale tests, fire resistanthydrocarbon fluids have demonstrated greater fireresistance than other askarel substitutes. Based onlarge scale testing, a study conducted by the NationalElectrical Manufacturers Association for the NationalInstitute of Standards and Technology concluded silicone oil appeared slightly more flammable than highmolecular weight hydrocarbons ( R-Temp fluid) eventhough their flash and fire points are essentially thesame.

7 10A fire hazard rating standard was developed byUnderwriters Laboratories in 1972, UL Standard graph shown demonstrates the favorable ratingassigned to R-Temp fluid. UL reports R-Temp fluid to benon-flammable at ordinary Cooper Power Systems for additionalinformation on any of these THE CODESR-Temp fluid is recognized as a fire safeguard bySection 15 of the National Electrical Safety Code(Accredited Standards Committee C2-2002).12R-Tempfluid meets the 2002 National Electrical Code Section450-23 requirements as a listedless-flammable is covered by Occupational Safety and HealthAssociation (OSHA) Article , Section 5(v). Foradditional information, request the NEC /NESCR equirements Guideline, Bulletin fluid is Factory Mutual Approved and hasbeen UL Classified Less-flammable per NEC Article450-23 since 1984. 14,11R-Temp fluid is also recognizedfor use by Industrial Risk Insurers per their applicationguide ( ).

8 10009030-4010-204-54-52-3 WaterAskarelR-TempFluidSiliconeParaffinO ilKeroseneGasolineEthylEtherR-TempFluidF IRE HAZARD RATINGUL STANDARD 340 ENVIRONMENTAL & HEALTH R-Temp fluid is carefully formulated to minimizehealth and environmental fluid is not listed as hazardous byEnvironmental Protection Agency (EPA), OSHA orDepartment of Transportation (DOT). Oral toxicity animaltests reported no signs of toxological reactions, nor haveany human contact reactions been reported. R-Tempfluid is not classified as bioaccummulating silicone, R-Tempfluid ,3,4 The University of Dayton, under an Electrical PowerResearch Institute (EPRI) contract, tested for thermaldecomposition by-products from typical utility fluid was placed in the least decomposition by-products from R-Tempfluid were also analyzed by the EPA as reported in theFederal Register.

9 R-Temp fluid did not produce PCDF's(Furans) or PCDD's (Dioxins) under the experimentalconditions. 16 Testing for acute toxicity of thermal degradationproducts also produced a favorable rating - superior tomost materials tested, even more favorable than othernatural materials such as wood and product safety information is provided inthe R-Temp fluid Material Safety Data Sheet (MSDS)available upon INFORMATIONSPECIFICATION GUIDELINEThe dielectric coolant shall be a listed less-flammable fluid meeting the requirements of NationalElectrical Code Section 450-23, including a minimum firepoint of 300 C and the requirements of the NationalElectrical Safety Code (IEEE C2-2002), Section 15. Thefluid shall be non-toxic, non-bioaccumulating shall be Factory Mutual Approved andUL Classified, R-Temp fluid or recommended acceptance values, contactCooper Power Systems or your equipment supplier forBulletin AND HANDLINGThe same basic procedures for storing and handlingconventional mineral oil should be followed with R-Tempfluid.

10 For additional storage and handling information,contact Cooper Power Systems or your MAINTENANCEP eriodic maintenance tests for R-Tempfluid-filledequipment should follow the same schedule used forconventional mineral oil-filled equipment. Recommendedmaintenance tests strength per ASTM D 877. The acceptablelimit for continued use of service-aged R-Temp fluidis 24 kV minimum (69 kV equipment and below).2 Flash Point and fire Point. Relatively small amountsof conventional oil or other contaminants may reducethe flash point and fire point of R-Temp fluids. If it issuspected that the fluid may be contaminated, flashpoint and fire point should be measured inaccordance with ASTM D Gas Analysis. Recommended particularlyfor high value equipment or equipment servicingcritical loads. ANSI/IEEE guide fordetection and analysis of generated gases should Testing one or more of the following propertiesprovides a good indication of possible fluidcontamination or unusual degradation.