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Luse Substation Fire Mitigation System

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Luse Substation Fire Mitigation System Luse Substation Fire Mitigation System Presentation Transcript

  • Who is Luse Thermal Technologies?Luse Companies started 1923. 4th generation is actively running the companyOur Primary Utility Services Include:Substation , Fossil, & Nuclear FirestoppingTransformer ProtectionPower Plant Heat Rate Recovery RepairsNuclear Mech. InsulationNuclear & Fossil Abatement
  • The Live Electric and Substation Environment WHY IS LTT QUALIFIED TO WORK IN YOUR FACILITY?LTT has installed fire protection in over 230 energizedsubstations during the past three years, withoutaccidents, injuries, or lost time incidents. Customersinclude ComEd, PG&E, PECO, DTE, Beta Steel, &Ameren to name a few. SAFETY IS LTT’s FIRST PRIORITY
  • FIRE: The uninvited guest to the dance of electrons PLANNING FOR FIRE EVENTS Proactive decisions help ensure the electrons keep flowing: ▪ Install fire protection enhancements. ▪ Learn from root cause lessons of others: When new cable is pulled, restore the fire protection system, (i.e., rebuild penetration seal). Plan for the restoration of fire protection items and schedule time for their repair, not just time to pull the new cable. Implement a periodic fire protection inspection program.
  • Planning For Fire Events FIRE: The uninvited guest to the dance of electronsUtilities are undertaking a proactive campaign to help ensure theelectrons keep flowing. Some first steps to take are: ▪ Learn from root cause lessons and review industry practices ▪ Implement a multi-year fire protection program  Passive Fire Protection  Fire Plans and Fire Department Training  Detection  Suppression
  • Planning For Fire EventsEvents Planning For Fire FIRE: The uninvited guest to the dance of electrons
  • LTT FortiFire® System restores Barrier Compartment SWITCHGEAR ROOM SUB-STATION BASEMENT LTT PROVIDES FIRE FIRE PROTECTION ENHANCEMENTS COMPARTMENTS HELP KEEP FIRE IN ROOM OF ORIGIN
  • Substations with Cable Space Areas Station Battery 12kV Circuit Breakers (DC Control Power) Cable 12kV Bus Space Hatch Grade Control Wire Cable Duct ToCable 12kV Power Cables in streetDuct Cable Space Tostreet
  • Dealing With ChallengesEnvironments can be challenging
  • Finding Solutions
  • Creative Problem Solving THE FIRE DOOR HAD A HOLE IN ITSome field conditions go beyond unique. This door opening was sealed with acombination of firestop materials restrained by steel plate (painted yellow) anddoor frame.The door closes against this seal assembly, providing an enhanced level offire resistance for this untested configuration.
  • Preview of LTT’s FortiFire© System FortiFire© Firestopping Live Cable PenetrationsFortiFire© Power Cable Joint ProtectionFortiFire© Control Cable ProtectionFortiFire© Hatch Cover Protection
  • Preview of LTT CapabilitiesTransformer Cable Drop PenetrationsCable Trough SealingProtection from Oil Filled EquipmentSilicone Elastomer Penetration Seals
  • Preview of LTT CapabilitiesFlexible Boot Penetration SealsWeather SealsTransformer Failure ShieldsSpecification, Procedure and Drawing Preparation
  • Preview of LTT CapabilitiesField Survey and Status AssessmentStructural Steel FireproofingGeneral and Task Specific TrainingFire Barrier Construction & Problem Solving
  • Luse Thermal Technologies Dawn of LTT FortiFire© SystemELECTRICAL SUB-STATIONS LTT Installs Fire Protection in live 12,000 volt environment NO OUTAGE REQUIRED
  • Cost / Benefit Ratio WHY SPEND MONEY ON FIRE PROTECTION ?LTT’s FortiFire© passive fireprotection upgrade packagewill help reduce the level ofequipment damage, outagetime to a service area, andnegative PR which can followan event.The cost of one substation fire $exceeded $7,000,000.A similar fire event in a sub-station where LTT’s turnkey Sub-station repair costspackage had been installed, after a firehelped reduce repair costs toless than $300,000.It makes sense to considerspending a little now to save a Fire Protectionlot later. upgrade costs Proactive Approach Reactive Approach
  • The Live Substation Environment SAFETY IS BUILT INTO LTT WORK PROCESS  Job Brief / Safety meeting 2 times a day  Perform "lessons learned" job critique at end of shift  Underground Electrician can be part of work crew if required  Field survey spots unique design conditions prior to arrival of work crew  Hazards identified before the work starts  Use of designs and procedures, validated by years of hands-on experience  LTT staff certifications include: OSHA 30 OSHA 1910.269 OSHA 1910.331-335 NFPA 70E Confined Space Entry CPR / First Aid
  • Stop - Think - Act - ReviewWORK SAFE AND SMARTRespect Equipment Zones
  • PENETRATION SEALS ARE THE LAST LINE OF DEFENSE IN A FIRE
  • Recognizing Fire Barrier Deficiencies THE DEGRADED FIRESTOP PROBLEM Problems:Sealant degradation  Unqualified or missing penetration seals (firestops) degrade the fire rating of the floor separating the switchgear room from the basement.  Examples of degraded fireNo seal installed barriers can allow passage of fire and smoke through the floor openings, creating problems for the operation of switchgear and/or the total loss of sub-station.Unqualified design  Smoke can travel up to 420 feet per minute, making containment essential.Combustible material
  • Solutions for the Substation Basement THE UP-SIDE-DOWN APPROACH  The vast majority of Firestop Systems are designed to be installed from above the floor.  In substation basements, “above the floor” typically means inside a switch gear or bus cabinet.  LTT has designed in conjunction with select firestopOne of the first steps is the removal of manufacturers seal designs asunqualified sealant designs. part of the FortiFire© system that can be efficiently installedDigging into the unknown requires use of from underneath the floor.safety equipment, such as 12 kV ratedlineman gloves.  LTT communicates directly with Fire Protection Engineers.LTT has developed safety protocols to removematerials under all energized conditions
  • LTT Penetration Seal Solutions LTT Firestop Instruction LTT FortiFire© DESIGN LIBRARY CABLES THROUGH HOLLOW CORE FLOOR OPENING SEALED FROM UNDERNEATH FLOOR FIRE RATING: 3-HOURS  LTT has performed penetration seal SMOKE SEAL: YES BARRIER TYPE: BARRIER LINING: HOLLOW CORE FLOOR CONCRETE OR STEEL upgrade work in over 230 substations. BARRIER THICKNESS: 8 INCH MINIMUM OPENING SIZE: ≤ 6 INCH ROUND ANNULAR SPACE: 0" TO 3-1/2" PENETRANT(S):  This experience created a library of POWER OR CONTROL CABLES seal designs engineered to bePLACEMENT OF SEALANT MATERIALS: INSTALLATION INSTRUCTIONS: installed from underneath the floor.  HILTI FS657 FIRE BLOCKS (ITEM E)  INSERT FIRE BLOCKS INTO HOLLOW CORE FLOOR. USE FULL 8" LENGTH AND PUSH BLOCK INTO THE OPENING SO IT ENTERS THE UPPER PART OF THE FLOOR (ABOVE HOLLOW ZONE). THE BOTTOM OF BLOCK SHOULD BE FLUSH WITH BOTTOM SURFACE  The LTT library includes seal designs for different floor types, OF OPENING. ACCURATE CUTTING OF THE FIRE BLOCK IS 8" NECESSARY TO FIRMLY ABUT CABLES. BEVEL EDGES OF BLOCK SO NEXT BLOCK ABUTS THE PREVIOUS BLOCK. SHAPE BLOCKS SO THEY COMPRESS AGAINST THE CIRCULAR SIDES OF THE including: OPENING. KEEP GAPS AS SMALL AS POSSIBLE.  HILTI FS-ONE CAULK (ITEM B, C OR D)     INSTALL CAULK INTO ALL GAPS BETWEEN CABLES AND CABLES CABLES AND FIRE BLOCKS Hollow core floors NOTE: CABLES AND OPENING FIRE BLOCKS AND FIRE BLOCKS FIRE BLOCKS AND OPENING 3 inch concrete slab DO NOT INSTALL FIRE BLOCKS IN HORIZONTAL 6 to 9 inch concrete slab INSTALL CAULK TO THE MAXIMUM EXTENT LAYERS. POSSIBLE EACH VERTICAL FIRE BLOCK MUST LINE UP WITH  HILTI CP 643N FIRESTOP COLLAR (ITEM F, G, H OR I) Concrete on metal pan deck THE FLOOR AREA ABOVE AND BELOW THE HOLLOW COLLAR SHOULD BE LARGE ENOUGH TO COVER ZONE. THIS IS DIFFICULT TO ACCOMPLISH BECAUSE OPENING IN FLOOR. TRY TO KEEP A 1/2 INCH GAP THE BLOCK CAN GET "CAUGHT" BY THE TOP OF THE BETWEEN CABLE AND COLLAR. HOLLOW AREA AS THE BLOCK IS BEING PUSHED INTO THE OPENING. ACCURATE CUTTING AND PLACEMENT IS  3/16" CONCRETE SCREW (ITEM L) WITH 3/4" OR LARGER WASHER (ITEM N) Metal floor NECESSARY TO FIT RECTANGULAR SHAPED BLOCKS  FILL GAP BETWEEN CABLE(S) AND CP 643N INTO ROUND OPENING WITH ROUND PENETRANTS. FIRESTOP COLLAR WITH FS-ONE CAULK.Based on Hilti Engineering Judgment xxxx DESIGN HC - 4
  • New Penetration Seal Design Drawing Format LTT Firestop Instruction LTT ENHANCED FortiFire® DRAWINGS POWER CABLES THROUGH OPENING IN CONCRETE ON PAN DECKPHOTO OF EXAMPLE OPENING: SEAL FROM ABOVE AND BELOW FLOOR FIRE RATING: 3-HOURS  Photographs are used to describe SMOKE SEAL: YES BARRIER TYPE: BARRIER LINING: CONCRETE ON PAN DECK CONCRETE W/ BEVELED EDGE field conditions, helping personnel to choose correct firestop design for the BARRIER THICKNESS: 7 INCH MINIMUM OPENING SIZE: ≤ 40 INCH X 30 INCH ABOVE OPENING: OPEN (NO CABINET) ANNULAR SPACE: PENETRANT(S): MINIMUM - 6" MAXIMUM - 20" specific field situation. THREE 69KV POWER CABLESPLACEMENT OF SEALANT MATERIALS: INSTALLATION INSTRUCTIONS:  New installation directions are based  18 GAUGE SHEET METAL PLATE  CUT SHEET METAL SO IT OVERLAPS ONTO PAN DECK A MINIMUM OF 2" AND STAYS AWAY FROM upon installing sealant from  CABLE 2-1/2". USE 3/16" CONCRETE SCREW WITH 1-1/2" STEEL WASHER TO FASTEN PLATE(S). ONE FASTENER EVERY 8 INCHES. underneath the floor.  MINERAL WOOL (4 PCF DENSITY) (2" THICK) PLACE MINERAL WOOL ON TOP OF SHEET METAL, MAKING SURE CABLES ARE ENCAPSULATED. FILL ENTIRE AREA OF OPENING WITH MINERAL WOOL.  HILTI FS657 FIRE BLOCKS INSERT FIRE BLOCKS INTO FLOOR OPENING.  Design limitations have been expanded by sealant manufacturer to USE 8" LENGTH AND COMPRESS BLOCK IN PLACE  THE BOTTOM OF BLOCK SHOULD REST ON TOP OF  MINERAL WOOL. NOTE: STAGGER FIRE BLOCK INSTALLATION (IE BRICK WALL). ACCURATE CUTTING OF THE FIRE BLOCK IS NECESSARY TO FIRMLY ABUT OPENING AND CABLES. CUT BLOCKS SO GAPS BETWEEN BLOCKS, encompass expected field conditions. CABLES AND OPENING ARE SMALL AS POSSIBLE.  HILTI FS-ONE CAULK INSTALL CAULK INTO ALL GAPS BETWEEN CABLES AND CABLES CABLES AND FIRE BLOCKS CABLES AND OPENING FIRE BLOCKS AND FIRE BLOCKS FIRE BLOCKS AND OPENING INSTALL CAULK TO THE MAXIMUM EXTENT POSSIBLE .Based on Hilti Engineering Judgment xxxx DESIGN PD - 2
  • Penetration Seal InstructionsGENERAL INSTALLATION GUIDELINES LTT Firestop Instruction KNOWLEDGEABLE DIRECTIONSEXAMPLE OF INCORRECTLY INSTALLED FIRE BLOCKS  PHOTO SHOWS THE WRONG WAY TO INSTALL FIRE BLOCKS. CORRECT SMALL PIECE OF FIRE BLOCK INSTALLED INSTEAD OF 8" LONG PIECE. INCOMPLETE FIRE BLOCK INSTALLATION INCLUDES: • FIRE BLOCKS NEED FULL 8 INCH LENGTH INSTALLED VERTICALLY IN HOLLOW CORE FLOOR BARRIERS.  Correct FortiFire© installation requires more than access to a FILL AROUND CABLES. • THE SIDES OF FIRE BLOCKS NEED TO BE ACCURATELY CUT SO THE GAPS BETWEEN ADJACENT BLOCKS ARE SMALL. FIRE BLOCK INSTALLED • THE ENTIRE OPENING NEEDS VERTICAL FIRE BLOCKS INSTALLED. HORIZONTAL INSTEAD firestop design drawing. OF VERTICAL. • FIRE BLOCKS ARE INSTALLED LIKE BRICK WALLS, WITH THE JOINTS STAGGERED. CAULK ALL GAPS ON UNDERSIDE.CUT FIRE BLOCKS TO CONFORM TO OPENING AND PENETRANTS  LTT General Installation Guidelines  CUT BLOCKS ACCURATELY APPLY CAULK TO ALL GAPS. TO FOLLOW THE CONTOUR OF ROUND OPENINGS AND INSTALL AS MUCH CAULK AS PENETRANTS. POSSIBLE INTO ALL GAPS. STAGGER JOINTS BETWEEN BLOCKS. RULE: THE BIGGER THE GAP, THE DEEPER THE CAULK NEEDS TO BE provide expanded directions required for qualified installation. These INSTALLED.STAGGER JOINTS BETWEEN FIRE BLOCKS  CORRECT FIRE BLOCK INSTALLATION PROCESS CALLS FOR JOINTS TO BE STAGGERED, SO CUT THE BLOCK IN HALF WHEN INSTALLING THE SECOND COURSE. instructions are worded so a first time PHOTO SHOWS AN OPTIONAL BEAD OF CAULK PLACED BETWEEN THE BLOCKS, PRIOR TO BLOCK INSTALLATION. FIRE BLOCKS ARE FRICTION FIT IN-PLACE. installer, following the steps, will have a functioning component of the THIS EXAMPLE SEAL IS IN A SOLID CONCRETE FLOOR THAT IS ONLY 6 INCH THICK. THIS EXPLAINS WHY THE FIRE BLOCKS IN THIS PHOTO HAVE BEEN INSTALLED WITH THE 5 INCH DEPTH PENETRATING THE BARRIER. FortiFire© system installed. HOLLOW CORE FLOORS REQUIRE FIRE BLOCKS TO BE INSTALLED WITH THE 8 INCH DEPTH THROUGH THE FLOOR.CUT, TRIM, PLACE AND/OR STUFF FIRE BLOCKS  INSTALLING FIRE BLOCKS AROUND PENETRANTS IS THE MOST DIFFICULT ASPECT OF THIS SEAL DESIGN. THE FULL EIGHT INCH LENGTH OF FIRE BLOCK HAS TO BE PLACED WITHIN THE HOLLOW CORE FLOOR. INSTALLATION MAY BECOME DIFFICULT AROUND THE PERIMETER OF THE OPENING WHERE A FIRE BLOCK CAN GET CAUGHT BY THE TOP OF THE HOLLOW OPENING.  LTT incorporates lessons learned LARGER PIECES ARE EASIER TO PUSH INTO POSITION, COMPARED TO SMALLER PIECES. WORK FROM ONE SIDE OF THE OPENING TO THE OTHER. PLACE THE SMALL PIECES BEFORE THE BIG PIECES. IT IS BETTER TO TRIM AND CUT A BIG PIECE THAN TO INSTALL MULTIPLE SMALL into our training programs, to continue PIECES. KEEP GAPS AS SMALL AS POSSIBLE to increase the high quality of our work.ACCURATE CUTTING OF FIRE BLOCK IS NECESSARY  SHOWS ACCURATE CUTTING OF FIRE BLOCKS ON LEFT SIDE OF EXAMPLE. AT TOP OF OPENING, SHORT PIECES OF FIRE BLOCKS WERE INSTALLED, DUE TO THE CABLES RUNNING THROUGH THE OPENING AT AN ANGLE. THIS CREATED AN OBSTRUCTION. THIS OPENING IS READY TO BE CAULKED.
  • The Substation Basement UTILIZE NEW FIRESTOP DESIGNS  Installation of firestopping in substation floor (ceiling of basement) to maintain the fire rating of the floor slab.  Firestopping work performed from underneath the floor.  Custom LTT/Manufacturer Firestop Designs  Trained Installation Personnel  Working safely is our first stepExample basement and fire barrier penetration seals
  • Testing is foundation of Penetration Seals TESTING FIRESTOPS  Firestops are tested to ASTM standard E814.  Test calls for temperatures of 1,000° F in first five minutes of test, climbing to 1,925° F at three hours.  Cold side temperatures are monitored during test. Test slab being removed from furnace. Notethat cable bundle in center has burned through.  After fire exposure, the test slab and seals are subjected to a powerful hose stream blast.
  • PENETRATIONSEALS Preview of Common Installation COLLAR HANGING ON SIDE OF CABLE TRAY IDENTIFIES CABLE LOADING WHERE A COLLAR WILL BE INSTALLED
  • PENETRATION SEALS Four Steps of Collar installation 1st step INSTALL FIRE BLOCKS/PILLOWS Three power cables penetrating hollow core floor, as shown below.Install Fire Blocks/Pillows into opening, so8" depth of goes through floor.Top of Fire Block/Pillow should reach upperportion of opening (area above hollow core).
  • PENETRATION SEALS Four Steps of Collar installation 2nd step INSTALL PREMIUM FIRESTOP CAULK Three power cables penetrating hollow core floor, as shown below.Install Caulk into allgaps between: cables and cables cables and fire blocks cables and opening blocks/pillows and blocks/pillows blocks/pillows and opening
  • PENETRATIONSEALS Four Steps of Collar installation 3rd step INSTALL FIRESTOP COLLAR Three power cables penetrating hollow core floor, as shown below. Install Firestop Collar
  • PENETRATIONSEALS Firestop Collars FASTENING COLLARS TO BARRIER  Collars are connected to concrete barriers with concrete screws and washers. The fasteners should be evenly spaced around the collar. Approved sizes of fasteners and washers: 3/16 X 1-1/4 CONCRETE SCREW WITH 3/4" WASHER 1/4 X 1-1/4 CONCRETE SCREW WITH 3/4" WASHER LARGER SIZE WASHERS ARE ALSO ACCEPTABLE
  • PENETRATIONSEALS Four Steps of Collar installation 4th step CAULK INSIDE OF COLLAR Three power cables penetrating hollow core floor, as shown below.Install Caulk inside ofCollar
  • Large Openings are easily addressed with Hilti Firestop Materials FIRE BLOCKS/PILLOWS ARE BUILT TO PROVIDE FUNCTIONING INSTALLATIONS IN DIFFICULT ENVIRONMENTS 36" x 48" opening. White spots are concrete dust from drilling holes for 72" x 48" opening, prior to wire mechanical fasteners. mesh installation.
  • Problem Solving SEPARATING THE STAIRWAY FROM ELECTRICAL HAZARDSLTT constructed 2-hour fire rated walls around stairways, providing a safe havenand exit path for this building.This work included a 90° rotation of existing stairs to allow the construction of thenew wall in a congested area.LTT invites the opportunity to help solve problems in your facility.
  • Problem Solving DEALING WITH CHALLENGESProblem solving is part of LTT’s scope
  • POWER CABLE JOINT PROTECTION
  • Cable Splices FIRE CAUSED BY CABLE JOINT FAILUREProblem:Cable connections (joints / splices)have overheated and exploded.Loss:Fire and molten metal from cablefault knocked out adjacent cables,shutting down other power and CABLEcontrol circuits. JOINTS Circle shows area of previous joint failure. White material shows partial coverage of new EP3990 Wrap to protect adjacent cables.
  • Cable Splices POWER CABLE WRAP SOLUTION  The Power Cable Wrap solution involves wrapping the joint (plus one foot on each side) and the adjacent cables above and below the joint.  Upon exposure to fire, EP3990CABLE Wrap forms a char layer (similar toJOINTS ceramic cell structure) which helps protect the underlying cable.  This wrap is not designed to contain an arc blast.
  • CONTROL CABLE PROTECTION
  • Protect the Control CablesBURNING POWER CABLES THREATEN CONTROL CABLES Control Cables Power Cables Problem: Burning power cables have damaged control cables routed above power cables, degrading ability to operate station.
  • Protect the Control Cables EACH SUBSTATION IS DIFFERENT When burning power cables are envisioned,the hot gasses will rise and then bedeflected by the FB3600-UT Silica Cloth.This installation prevents the cable tray fromacting like a large frying pan, where thecontrol cables are cooked.Talk about cooking!This hanging pile of spaghetti will take somethought to come up with an appropriatemethod of protection.
  • Protect the Control Cables CONTROL CABLE PROTECTION  The FB3600-UT high temperature fabric provides thermal protection for control cables inside of cable tray.  Air gap between fabric and cable tray shields cables from direct flame exposure.  Cable drops / cableCABLEDROP bundles are individually covered. CONTROL CABLE PROTECTION
  • 3 of the 4 FortiFire© elements INSTALLATION EXAMPLE As connections to unistrut hanger occur, the finished FortiFire© barrier system takes shape.
  • HATCH COVER PROTECTION
  • Protecting back-up Power, the 4th element of the FortiFire© system UNPROTECTED HATCH COVERSProblem:Heat radiating through closed steelhatch cover (during basement fire)melted the battery, resulting in failureof sub-station backup power.Loss:Damage to backup power systemprevented operation of switchgear,leading to larger outage. Radiant heat through metal hatch melted and shorted out battery
  • Protecting back-up Power SOLUTION: RADIANT ENERGY SHIELDOpen hatch in process of having Closed hatch with radiant heat shield.radiant heat shield fastened tosteel plate.
  • HATCH PROTECTION Hatch Protection ACCESS HATCHES ARE DIFFERENT STYLES The size and shape of access hatches varies. A single pattern does not cover each type of hatch.
  • Hatch Protection MAY USE MULTIPLE PIECES OF BOARD1 Multiple pieces of Firestop Board may be needed to cover the underside of a hatch. Due to obstructions (opening handle, hinge, hand holds, safety barrier hinge, etc.) the entire hatch will not be completely covered.2 Only portions of this example have wrap strip installed, because steel strengthening of hatch creates two compartments.3 4 5
  • Transformer Cable Drop Penetrations OIL INTRUSION PROTECTION Open cable penetrations below the transformer "dog house“ can provide a path for oil, water and fire to enter the substation basement. The sealants LTT uses to seal these openings are designed to resist oil, water and fire. Several solutions are available:
  • Cable Trough Water Mitigation Sealing THE NEED TO SEAL CABLE TROUGH Water inside of cable trough, moving toward opening in substation basement wall.  Water cascading into basement and cable tray.  Wooden board will stop a large rodent, but not water or oil.
  • Cable Trough Water Mitigation Sealing THE CABLE TROUGH SOLUTION This cable trough allowed rainwater to enter substation basement on regular basis. Shows installation of perforated PVC pipe embedded in grout dam. The drain pipe connects to station sump pump. Urethane foam was placed on top of grout. The foam allows for future cable pulling with no damage to grout dam. Side walls of trough show marks from “river” of water that flowed into substation basement.
  • Cable Trough Oil Mitigation SealingThe yellow arrows track the In the event of transformer rupture,potential path of oil that can the cable trough provides a path fordrain into the trough and then burning oil to enter the substationflow into the substation cable basement.space. As of 10.12.12, no products or engineered systems reviewed have been able to 100% resolve the burning oil problem while allowing for ease of cable removal & replacement.
  • Oil Filled Equipment Hazard Within 10 feet of Building OIL INTRUSION PROTECTION Auxiliary transformers often contain oil. During an abnormal event, oil can flow down conduits and enter the substation basement. Sealing these conduits to prevent burning oil from entering the cable space is a prudent action. Aftermath of auxiliary transformer event that propagated fire into substation basement. Oil leaked into basement following embedded conduits in concrete slab.
  • Oil Filled Equipment HazardSWITCHGEAR ROOM OIL INTRUSION PROTECTION  AUXILIARY TRANSFORMER OR OIL FILLED EQUIPMENTSUBSTATION BASEMENT AUX POWER CABLES L EA LS AL IO RW ER EXT EXTERIOR WALL SEALS NEED TO BE OIL, WATER AND FIRE RESISTANT BELOW GRADE EXTERIOR WALL SEALS 
  • New Compartments in Power Station TunnelsELECTRIC POWER STATIONS LTT Installs Fire Protection in live 138,000 volt environment
  • New Compartments in Power Station Tunnels FIRE AND PRESSURE RESISTANT SEALS  Silicone Elastomer used to seal 138 kV Cables in new fire walls.  3-hour fire rating.  Silicone elastomer provides considerable pressure resistance. SILICONE ELASTOMER SEALSilicone elastomer penetration seals were originally used innuclear plants. Project engineer specified the technology inthis T&D application, due to robust nature of seal design.
  • New Compartments in Power Station Tunnels FIRE AND PRESSURE RESISTANT SEALS  Flexible boot seals allow for pipe movement.  3-hour fire rating.  Flexible boot seals provide FLEXIBLE BOOT SEAL considerable pressure resistance. Flexible boot penetration seals were also used in nuclear plants
  • Weather Protection PREVENTING WATER LEAKAGE  Silicone Sheet and Caulk provide leakage protection in concrete roof.  Weatherproof seals cover fire rated sealants installed in plane of floor.  Silicone materials provide excellent UV protection.Weather seals encapsulate 69 kVpower cables as they penetrateconcrete deck. Multiple electrical conduits penetrate slab
  • Structural Steel FireproofingMINERAL WOOL FIREPROOFING Mineral wool board fireproofingeliminates adhesion problems commonto spray applied fireproofing. "Dry" material is easily installed inretrofit applications.STEEL TRUSS IN PROCESS OFBEING COVERED
  • Fire Protection for New Sub-stations PASSIVE FIRE PROTECTION  LTT personnel have decades of fire protection installation and management experience ELECTRICAL  LTT has a quality program TRANSFORMER  LTT has an excellent safety record T LT  LTT can meet your schedule345 kV SWITCHGEAR BEFORE AFTER
  • CASE STUDY FortiFire© System in Action ELECTRICAL CABINET DAMAGECABINET 12 kV cable fault explosion in electrical cabinet BULGE deformed metal covers. Fire detection system recorded two simultaneous events; one arc blast on 1st floor (in electrical cabinet) and second in basement (joint failure). Fire modeling predicted this substation to be a high risk station, so fire protection enhancements had been installed before this event took place. No injuries occurred during event or restoration work.
  • CASE STUDY FortiFire© System in Action CABINET DAMAGE Electrical cabinet where arc blast occurred. A A and B phases had visible damage. BC Cabinet in process of being cleaned.
  • CASE STUDY FortiFire© System in Action CABLE CONNECTION DAMAGE Phase A fault occurred at junction between 15 KV cable and connection plate. Fire is an uninvited guest to electrical distribution facilities. Invitation! I dont need no stinking invitation!
  • CASE STUDY FortiFire® System in Action CABLE CONNECTION DAMAGE Fault vaporized nuts and bolts (arrows) securing phase B cable connection plate to bus bar.
  • CASE STUDY FortiFire© System in Action CONTAINMENT Phase A and B cables show charring of cable jacketing. Firestop materials were installed from underside of floor. Firestop was not dislodged, even though arc blast ILLUMINATION was strong FROM FLASHLIGHT enough to deform steel cabinet.FIRESTOP AT BOTTOM OF CABINET KEEP FIRE CONTAINED
  • CASE STUDY FortiFire© System in Action UNDERSIDE OF FIRESTOP Photo of firestop in floor opening taken six months prior to cable fault. Condition of firestop eight hours after cable fault. Water from sprinkler actuation is visible on cable and wire mesh. Seal is in "as new" condition with no degradation after explosion and 45 minutes of water spray exposure.
  • CASE STUDY FortiFire© System in ActionFB3600-UT CABLE JOINT FAILURECONTROL CABLE WRAP EP3990 Cable Wrap installed on joint and adjacent power cables. Dark areas identify where cable wrap absorbed energy from joint failure, helping to protect underlying power cables. Water drops from sprinkler actuation can be seen dripping from underside of cable wrap. Adjacent control cables were also covered with FB3600-UT (gold fabric) protecting underlying cables from direct arc blast. EP3990 POWER CABLE WRAP
  • CASE STUDY FortiFire© System in Action SPRINKLER CONTROL CABLE PROTECTION HEAD Control cable protection stayed in place during 45 minutes of sprinkler actuation. FB3600-UT Fabric allowed clean water to flow through fire resistant weave. Sprinkler heads were directly above cable tray. Basement had 1.5 foot depth of water when sprinklers were turned off.
  • CASE STUDY FortiFire© System in Action1 FINDINGS 3 out of the 4 LTT FortiFire© System components were activated and helped mitigate damage caused by example cable faults:2 1. Firestopping contained the fire to the inside of the electric cabinet. 2. EP3990 Power Cable Wrap protected adjacent power cables from impact of joint failure arc blast. 3. FB3600-UT Control Cable Wrap protected several control cables from3 direct arc blast exposure.
  • Review of LTT Utility Services WHAT CAN LTT DO FOR YOUR UTILITY ?1. Firestopping of Live Cable Penetrations2. Power Cable Joint Protection (EP3990 Wrap)3. Control Cable Protection (FB3600-UT Cloth)4. Hatch Cover Protection (radiant energy shields)5. Transformer Cable Drop Penetrations6. Cable Trough Sealing7. Oil Filled Equipment Protection8. Silicone Elastomer Penetration Seals9. Flexible Boot Penetration Seals10. Weather Protection11. Transformer Failure Shield12. Specification, Procedure and Drawing Preparation13. Field Survey and Status Assessment14. Structural Steel Fireproofing15. General and Task Specific Training16. Fire Barrier Construction & Problem Solving17. Provide TurnKey install package or Certified Training of your personnel or contractor of choice.
  • LUSE THERMAL TECHNOLOGIESTHANK YOU FOR YOUR TIME !
  • QUESTIONS
  • Your information requests receive our highest priority! ASSET PROTECTION ENHANCEMENTS HERE TO HELPJim FordCell: 630.240.6381Email: jford@luse.comJohn ProvencherCell: 708.363.3838Email: jprovencher@luse.com