Stand-Alone Surge Protection Devices Featuring Surge .
A P P L I C A T I O N&I N S T A L L A T I O NG U I D E L I N E SStand-Alone Surge Protection Devices FeaturingSurge Suppression Modules
Application & Installation Guidelines2 A P P L I C AT I O N&I N S TA L L AT I O NG U I D E L I N E S
Table of ContentsPreface5Strikesorb Surge Suppression Modules6IntroductionStrikesorb Options7Strikesorb Types AvailableStrikesorb Interconnection Options8Modes of Protection8Selecting Module Type8Mechanical Properties9Torque Recommendations10Strikesorb Integrated Applications11Rayvoss Stand-Alone Surge Protection Devices12IntroductionRayvoss Options12Selecting Module TypeRayvoss Product Selection Guide13Typical Product Configurations14Optional Features21Rayvoss Installation Guidelines22Direct Connection22Key Advantages23T-Connection24Installation Notes25Installation Instructions26Raycap Electrical Protection Worldwide Locations28Ta b l e o f C o n t e n t s 3
4 A P P L I C AT I O N&I N S TA L L AT I O NG U I D E L I N E S
PrefaceThis document provides technicalinformation on Raycap’s Strikesorb SurgeSuppression Modules and Rayvoss standalone Surge Protective Devices (SPDs). Anintroduction to the principle of operation ofStrikesorb’s patented technology is brieflypresented. The technical characteristicsof available types, the interconnectionoptions, and the selection of the appropriateStrikesorb type for many power systemconfigurations, as well as the methodologyfor integrating Strikesorb modules into thecabinets of large systems, is described indetail.Strikesorb modules are the basic elementsof Rayvoss SPD systems. The internalconfiguration of a Rayvoss system, whichdepends on the power system configuration,the required level of protection, and thedesired additional features, is different forevery Rayvoss type. The unique design ofRayvoss SPDs does not include or requireany type of dedicated thermal disconnectmechanism (fuses, breakers, etc.), allowingthe Rayvoss to be connected directly onthe power wires. This provides for twopossible installation options for RayvossSPD systems:A Product Selection Guide for Rayvosssystems is shown on page 13.Detailed installation instructions for theDirect or T-Connection of Rayvoss systemare also provided.Updated product information can be foundon the Raycap website: raycap.com.The site provides detailed information of thefollowing: Rayvoss Brochure, Datasheets,Application Notes, White Papers Comprehensive presentation ofStrikesorb’s principles of operation Features and benefits of Strikesorb/Rayvoss unique technology Direct Connection on the power linesRayvoss is the only SPD device thatcan be safely installed in-line directlyon the power lines. T-ConnectionThis is the conventional method ofconnecting a SPD in a branch via anappropriate circuit breaker or fuse.Preface 5
Strikesorb Surge Suppression ModulesIntroductionThe Strikesorb surge suppression moduleis used either as a stand-alone protectionelement in integrated solutions or withina Rayvoss SPD system. It incorporates asingle, heavy duty, distribution grade metaloxide varistor (MOV) disk, assembled underpressure in an environmentally sealedaluminum casing.Strikesorb’s unique design provides verylow internal contact resistance and uniformdistribution of the surge current over thetotal area of the protection element resultingin low current density which guarantees thelowest let-through voltages. Furthermore,the excellent thermal management of theMOV due to its aluminum housing providesextremely high energy handling capability.Strikesorb’s patented design minimizes theeffects of aging and completely eliminatesthe risk of catastrophic failure, explosion orfire.6 A P P L I C AT I O N&I N S TA L L AT I O NG U I D E L I N E SStrikesorb incorporates state of the artdevelopments in metal oxide technologyproviding superior protection characteristics,which remain unchanged throughout itslong service life. The modules have beendesigned to withstand repeated surgesproviding cost-effective and maintenancefree operation in harsh environments.Strikesorb is the only UL 1449 4th Editionrecognized surge protection module in theindustry rated for safe operation without theuse of additional internal fuses. This uniquefeature, combined with its capability to beconnected directly on the power lines (feedthrough connection), makes it the mostreliable surge protection device known andensures that critical electronic equipmentwill remain protected at all times. Strikesorb40 mm and 80 mm modules are certified asClass I surge protection devices per theIEC 61643-11:2011.
Nominal Operating Voltage:The normal rms voltage atwhich the Strikesorb moduleis designed to operate. Thisvalue is determined by thepower system voltage.For example, if theStrikesorb module is tobe connected betweenline to neutral on a singlephase, 120 V system, thenStrikesorb 40-A or Strikesorb80-A should be used for thisapplication.Strikesorb OptionsStrikesorb (AC) Types Available Strikesorb-40This module includes a single MOV disc of 40 mmdiameter, provides protection from surges up to140 kA (8/20 µs), and can be used in all applications. Strikesorb-80This module includes a single MOV disc of 80 mmdiameter and provides protection from surges upto 200 kA (8/20 µs). It is recommended for use inlocations where the risk of direct lightning strikes ishigh, or at locations with a history of frequent surgerelated equipment failures.Maximum ContinuousOperating Voltage (MCOV):The maximum designatedrms value of the voltage thatmay be continuously appliedto the Strikesorb module.Maximum Surge CurrentRating (8/20 µs):The maximum surge current(8/20 µs waveform), that thesurge suppression modulecan withstand, as specifiedin IEEE C62.41-1, withoutdamage or deterioration ofits performance.There are multiple Strikesorb surge protection modules available, some of the morecommonly used for Rayvoss are shown in the table below:Nominal OperatingVoltageMaximum ContinuousOperating Voltage(MCOV)Maximum SurgeCurrent Rating(8/20 µs)SPD Class I perIEC 61643-11Strikesorb 40-A120 V150 V140 kA12.5 kA 10/350 µsStrikesorb 40-B240 V300 V140 kA12.5 kA 10/350 µsStrikesorb 40-C277 V350 V140 kA12.5 kA 10/350 µsStrikesorb 40-D400 V480 V140 kA12.5 kA 10/350 µsStrikesorb 40-E480 V600 V140 kA12.5 kA 10/350 µsStrikesorb 40-F600 V750 V140 kA12.5 kA 10/350 µsStrikesorb 40-G1000 V1200 V140 kA12.5 kA 10/350 µsStrikesorb 80-A120 V150 V200 kA25 kA 10/350 µsProduct IDStrikesorb 80-B240 V300 V200 kA25 kA 10/350 µsStrikesorb 80-C277 V350 V200 kA25 kA 10/350 µsStrikesorb 80-D400 V480 V200 kA25 kA 10/350 µsStrikesorb 80-E480 V600 V200 kA25 kA 10/350 µsStrikesorb 80-F600 V750 V200 kA25 kA 10/350 µsStrikesorb Surge Suppression Modules 7
Strikesorb Interconnection OptionsModes of ProtectionThe way that Strikesorb is connected to the power systemdetermines the mode of protection that Strikesorb willprovide. There are four possible interconnection optionsdescribed in the following table:ConnectorMode of haseSplit-phaseThree-phase(with neutral seThree-phase(with neutral ee-phaseABLABSelecting Module TypeThe Strikesorb module selection is based on the followingtwo criteria: Nominal Operating Voltage: This is the rms voltagemeasured between the two points (A and B) thatStrikesorb module will be connected to. Surge Current Withstand Capability: In criticalapplications where severe lightning strikes areexpected, Strikesorb 80 should be considered.8 A P P L I C AT I O N&I N S TA L L AT I O NG U I D E L I N E S
Product Selection ExampleRequirements: Power System: Three-phase with neutral System Voltage: 480 V rms Line-to-Line (L-L) Required Mode of Protection: Line-to-Ground (L-G) Application: Protection Variable Frequency Drives(VFD) from lightning and power surgesIn this application three Strikesorb modules are required tobe installed between each line conductor and the ground.The protection modules should be able to withstand thethermal energy generated by periodic transients producedby the inverter circuit in addition to utility-generated surges,therefore Strikesorb 80-C or 40-C is recommended.Mechanical PropertiesThe table below shows the primary mechanical properties of Strikesorb 40 and 80 modules.Mechanical PropertiesDiameter inch [cm]Height inch [cm]Weight lbs [kg]Strikesorb 40Strikesorb 806.35 - 7.0 cm [2.5″ - 2.76″]10.79 cm [4.25″]9.46 - 10.78 cm [3.73″ - 4.24″]9.45 cm [3.72″]6.04 - 8.0 kg [1.33 - 1.76 lbs]1.5 - 1.55 kg [3.31 - 3.41 lbs]The mechanical drawings of the Strikesorb 40 and Strikesorb 80 modules are shown below.1/4 - 20 UNC 0.74″ deep94.62 mm[3.73ʺ]63.50 mm[2.50ʺ]94.50 mm[3.72ʺ]107.90 mm[4.25ʺ]1/2 – 20 UNFStrikesorb Surge Suppression Modules 9
Torque RecommendationsThe following illustration provides the recommended torquevalues for secure mounting of Strikesorb modules on groundbars and busbars. In addition, it provides the recommendedtorque values for attaching the wires into the mechanicalconnector, for different wire sizes.Torque Recommendations for Strikesorb Module AssemblyExample:60 in-lbs 60 x 0.113 6.8 Newton Meters (Nm)Connector to Feeder Conductors#14 - #10 AWG – 35 in-lbs#8 AWG – 40 in-lbs#6 - #4 AWG – 45 in-lbs#3 - 2/0 AWG – 50 in-lbsUnit Conversion:Mechanical Connector to Strikesorb Module6.8 to 9.0 Nm (60 to 80 in-lbs)Strikesorb Module to Ground Plate1 in-lb 0.113 Newton Meter22.0 to 24.3 Nm (195 to 215 in-lbs)AWG American Wire Gauge10 A P P L I C AT I O N&I N S TA L L AT I O NG U I D E L I N E S
Strikesorb Integrated ApplicationsStrikesorb surge suppression modules are the basicelements of the Rayvoss SPD systems which are describedin the following sections. They can also be used as standalone SPDs integrated into large systems. IntegratingStrikesorb modules into the equipment provides thehighest level of protection due to the elimination of theinterconnecting cables. Strikesorb modules can be directlyconnected inside the cabinet after the main circuit breaker.Due to the absence of lead wires and internal disconnectmechanisms, this installation method provides the lowestlet-through voltage to the equipment.Typical applications of the integrated solutions include: Variable Frequency Drives (VFDs) Telecommunication Equipment: Base Stations,Exchange Nodes, Street Cabinets, Optical Node Units(ONU), etc. Uninterruptible Power Supplies (UPS) Electrical Submersible Pump (ESP)Strikesorb modules can be integrated into any cabinetprovided that there is sufficient space inside the cabinet toinstall the modules.A general interconnection diagram showing the directconnection of Strikesorb modules on busbars is illustratedbelow:From Main BreakerBusbarsStrikesorbsGroundTo EquipmentStrikesorb Surge Suppression Modules 11
Rayvoss Stand-AloneSurge Protection DevicesIntroductionGeneralRayvoss SPD systems deploy Strikesorb suppression modules in a variety of configurations and operating voltages: Single Phase / Split Phase: 120 V to 240 V Three Phase Wye: 120 / 208 V, 220 / 380 V to240 / 415 V, 277 / 480 V, 347 / 600 V Three Phase Delta: 240 V, 480 V, 600 VRayvoss SPD products provide continuous protection fromlightning, temporary voltage and other transient voltageactivity on a stand-alone basis at the building entrance anddistribution panels where critical equipment is connected.Rayvoss System with Four Strikesorb ModulesRayvoss A277-3Y-A1-4-06-C-H12 A P P L I C AT I O N&I N S TA L L AT I O NG U I D E L I N E S
Rayvoss ProductSelection GuideThe Rayvoss Product Selection Guide is a helpful tool whendetermining the right Rayvoss for an application based onoperating voltage, distribution type, enclosure size, and othervariables.The information in this guide is intended to aid in theselection of a Rayvoss SPD suitable for your installation. Forfurther assistance please contact Raycap Sales atinfo@raycap.com or your area representative.Product Selection GuideOperating VoltagePart Number ExampleEnclosure SizeNEMA 4 MetalDistribution Type120 This is the SPD operating240 Voltage. For single phaseor three phase wye (Y)277 distributions, this is the380 voltage between Line andNeutral. For Delta ( ) type480distribution, this is the Line600 to Line Voltage1P1 Phase2S2 Phase – Split Type3Y3 Phase – Wye3D3 Phase – Delta 3H3 Phase – Delta High LegStrikesorbCapacityStainless steel upon requestA19.75 x 19.75 x 10.5408074 or 7N19.75 x 14.75 x 8.53, 4 or 73M12 x 12 x 8.52, 3, or 42 or 3S10 x 8 x 6.52 or 3Type of Strikesorb1Strikesorb 803Strikesorb 40120 - 2S - M3 - 3 - 06 - A - H*Number ofStrikesorbs2347Optional FeaturesInternal Plate Connection0Connected to Ground0No electronicsNConnected to Neutral3Surge Counter, phase indicationLEDs and Remote Relays(Not available for “S” enclosure)6Phase indication LEDs and remote relayStrikesorbOperating Voltage (V)A120B240C277D400E480F600Thank you for choosing quality products from Raycap, Inc.The material in this guide is intended as an aid to selecting a Rayvoss SPD suitable for your installation. For further assistance please contact us at 0-004 Rev D*For a stainless steelenclosure specify "-SS" inplace of the "-H" indicationwhich is for the standardpainted NEMA 4 enclosure.Rayvoss Stand-Alone Surge Protection Devices 13
Typical Product ConfigurationsRayvoss is available in a variety of configurations to match localelectrical system requirements. The following table lists themost common configurations. Rayvoss can also be customizedto fit special applications.Electrical System ConfigurationGeneral Interconnection DiagramSystem Voltage: 120 V or 220 VSingle PhaseL208Vor380VCircuit Type: 2 W GProtection Mode: L-G, N-GL120V or 220VNN LLRayvoss ConfigurationNLGNotesRayvoss Models2 module systemsuitable for -H240-1P-M1-2-0x-B-H240-1P-S3-2-0x-B-HElectrical System ConfigurationGeneral Interconnection DiagramSystem Voltage: 120 V / 240 VSplit PhaseLL1120VCircuit Type: 2φ, 3 W G240VNNProtection Mode: L-G, N-G120VL2LRayvoss ConfigurationNL1GL2 NotesRayvoss Models3 module systemsuitable for -H120-2S-M3-3-0x-A-HLegend:14 A P P L I C AT I O N&I N S TA L L AT I O NG U I D E L I N E SLoad Strikesorb
Electrical System ConfigurationGeneral Interconnection DiagramSystem Voltage: 120 V / 208 VThree PhaseL1LCircuit Type: 3 ϕ, Wye, 4 W G120V208VNNProtection Mode: L-G, N-GL2LLL3 Rayvoss ConfigurationNL1L2L3GElectrical System ConfigurationNotesRayvoss Models4 module systemsuitable for -H120-3Y-M3-4-0x-A-HGeneral Interconnection DiagramSystem Voltage: 120 V / 208 VThree PhaseLCircuit Type: 3 ϕ, Wye, 4 W GProtection Mode: L-G, L-N, N-G208VNLL1120V N L2 LL3 Rayvoss ConfigurationNGL1L2L3NotesRayvoss Models7 module systemfor applicationswith 3Y-N3-7-0x-A-HRayvoss Stand-Alone Surge Protection Devices 15
Electrical System ConfigurationGeneral Interconnection DiagramSystem Voltage: 220 V / 380 VThree PhaseL1L220V380VNCircuit Type: 3 ϕ, Wye, 4 W GNProtection Mode: L-G, N-GL2LLL3 Rayvoss ConfigurationNL1L2L3GElectrical System ConfigurationNotesRayvoss Models4 module systemsuitable for -H240-3Y-M3-4-0x-B-HGeneral Interconnection DiagramSystem Voltage: 220 V / 380 VThree PhaseL380VNCircuit Type: 3 ϕ, Wye, 4 W GProtection Mode: L-G, L-N, N-GLL1220V N L2 LL3 Rayvoss ConfigurationNL1GL2L3NotesRayvoss Models7 module systemfor applicationswith 3Y-N3-7-Ox-B-HLegend:16 A P P L I C AT I O N&I N S TA L L AT I O NG U I D E L I N E SLoad Strikesorb
Electrical System ConfigurationGeneral Interconnection DiagramSystem Voltage: 277V / 480 VThree PhaseL1LCircuit Type: 3 ϕ, Wye, 4 W G277V480VNNProtection Mode: L-G, N-GL2LLL3 Rayvoss ConfigurationNL1L2L3GElectrical System ConfigurationNotesRayvoss Models4 module systemsuitable for -H277-3Y-M3-4-0x-C-HGeneral Interconnection DiagramSystem Voltage: 277V / 480 VThree PhaseLCircuit Type: 3 ϕ, Wye, 4 W G480VNL1277V LN L2 Protection Mode: L-G, L-N, N-GLL3 Rayvoss ConfigurationNGL1L2L3NotesRayvoss Models7 module systemfor applicationswith 3Y-N3-7-0x-C-HRayvoss Stand-Alone Surge Protection Devices 17
Electrical System ConfigurationGeneral Interconnection DiagramSystem Voltage: 347 V / 600 VThree PhaseL1L347V600VNCircuit Type: 3 ϕ, Wye, 4 W GProtection Mode: L-G, N-GNL2LLL3 Rayvoss ConfigurationNL1L2L3GElectrical System ConfigurationNotesRayvoss Models4 module systemsuitable for -H347-3Y-M3-4-0x-D-HGeneral Interconnection DiagramSystem Voltage: 347 V / 600 VThree Phase WyeL600VNCircuit Type: 3 ϕ, Wye, 4 W GProtection Mode: L-G, L-N, N-GLL1347V N L2 LL3 Rayvoss ConfigurationNL1GL2L3NotesRayvoss Models7 module systemfor applicationswith 3Y-N3-7-0x-D-HLegend:18 A P P L I C AT I O N&I N S TA L L AT I O NG U I D E L I N E SLoad Strikesorb
Electrical System ConfigurationGeneral Interconnection DiagramSystem Voltage: 240 V High-LegDeltaACircuit Type: 3 ϕ, Delta, 4 W GProtection Mode: L-G, CT-G120V240VNHL120V240VC Rayvoss ConfigurationNACHLGElectrical System ConfigurationNotesRayvoss Models4 module systemsuitable for -H240-3H-M3-4-0x-B-HGeneral Interconnection DiagramSystem Voltage: 240 V Three PhaseDeltaCircuit Type: 3 ϕ, Delta, 3 W GLL1240V240VProtection Mode: L-G240VL2L3 Rayvoss ConfigurationL1GL2L3NotesRayvoss Models3 module systemsuitable for -H240-3D-M3-3-0x-B-HRayvoss Stand-Alone Surge Protection Devices 19
Electrical System ConfigurationGeneral Interconnection DiagramSystem Voltage: 480 V Three PhaseDeltaLCircuit Type: 3 ϕ, Delta, 3 W GL1480V480VProtection Mode: L-G480VL2L3 Rayvoss ConfigurationL1L2GL3NotesRayvoss Models3 module systemsuitable for -H480-3D-M3-3-0x-D-HLegend:20 A P P L I C AT I O N&I N S TA L L AT I O NG U I D E L I N E SLoad Strikesorb
Optional FeaturesOPTION 06: Phase Indication LEDs and Remote RelaysNormal operation is indicated by the illumination of greenLEDs. In the event of a fault or loss of power, the respectiveLEDs will go OFF. There are also dry contacts availablewhich can be connected to a remote alarm system.OPTION 03: Surge Counter, Phase Indication LEDs andRemote RelaysNormal operation is indicated by the illumination of greenLEDs. In the event of a fault or loss of power, the respectiveLEDs will go OFF. There are also dry contacts availablewhich can be connected to a remote alarm system. The 03Option also includes a surge counter.Optional Enclosure FeaturesRayvoss standard metal enclosure is NEMA 4 rated andavailable in four standard sizes which can be equipped withmultiple features and options.Stainless steel enclosures are also NEMA 4X rated andavailable with the same standard options and features.**For a stainless steelenclosure specify "-SS" inplace of the "-H" indicationwhich is for the standardpainted NEMA 4 enclosure.Rayvoss Stand-Alone Surge Protection Devices 21
Rayvoss Installation GuidelinesThere are two ways to install Rayvoss systems: Direct Connection – the ability to provide truecontinuous protection to downstream equipment.This is the preferred method for Rayvoss installation.It provides the lowest possible let-through voltage. Inaddition, it never leaves the equipment unprotected. T - Connection – traditional method of connection tothe electrical system through a branch fuse or circuitbreaker.Direct ConnectionThree Phase4 WireBreakerABCor FuseNG22 A P P L I C AT I O N&I N S TA L L AT I O NG U I D E L I N E S
Key Advantages of the Direct Connection Zero Lead Length – The modules are directlyconnected to the electrical system offering the lowestpossible let-through voltage. The input wires (lineand neutral wires) are inserted into the Rayvossenclosure and are directly connected to one of the twoStrikesorb connector ports. The second port of eachconnector is used to connect the corresponding wirethat feeds the equipment, as shown in the diagramon the opposing page. Therefore, no additional leadwires, which can increase the voltage seen by theequipment, are used. Load is Always Protected – Should a continuousovervoltage event exceed the energy handlingcapability of Rayvoss, the Strikesorb module goesshort and the upstream overcurrent protection deviceoperates. In this way the equipment is taken off-line,protecting it from subsequent exposure to damagingconditions.Rayvoss Installation Guidelines 23
T-ConnectionT-Connection is used in the following situations where directconnection is not possible: Line wire size is greater than 95 mm2 (#4/0 AWG)Because Rayvoss systems can use larger size lead wires,they can be connected using bigger fuses comparedto those used in conventional SPD systems even whenconnected in T-configurations. This allows for continuousprotection at higher surge currents, and maximum use ofStrikesorb’s superior capabilities.Three Phase4 WireBreakerABCor FuseNGFuseDisconnector Breaker24 A P P L I C AT I O N&I N S TA L L AT I O NG U I D E L I N E S
Direct and T-Connection Installation NotesRayvoss installations are driven by the size of the enclosure, as indicated in the table belowand must comply with the national codes:Enclosure TypeEnclosure SizeUpstream Protection(Class J Fuse orCircuit Breaker)MaximumConductor SizeS254.0 203.2 165.1 mm[10″ 8″ 6.5″]50 A10 mm2[#6 AWG]M304.8 304.8 215.9 mm[12″ 12″ 8.5″]100 A35 mm2[#2 AWG]N501.65 355.6 215.9 mm[19.75″ 14.75″ 8.5″]225 A95 mm2[#4/0 AWG]A501.65 501.65 266.7 mm[19.75″ 19.75″ 10.5″]225 A95 mm2[#4/0 AWG]AWG American Wire GaugeRayvoss Installation Guidelines 25
Installation InstructionsBefore installing, makecertain the system voltageand configuration on thenameplate is appropriate foryour electrical service.Cautions & Warnings1. Always select the appropriate Rayvoss type for yourelectrical system.2. Rayvoss systems should be installed by qualifiedelectricians.3. Installation and wiring should conform to the NationalElectrical Code and applicable local codes.4. The environmental rating and type of this product willbe adversely affected if the incorrect type and ratingof conduit fitting or cable gland is installed.5. Disconnect from energized circuits before installing orservicing.MountingThe Rayvoss system needs to be mounted to a solid,flat surface capable of supporting appropriate weight asdetermined by the size of the enclosure per the table below.It is convenient to install the lower mounting studs/bolts firstas the Rayvoss has slotted lower mounting lugs. Once thelower studs/bolts are installed, the Rayvoss may be loweredonto them and the correct location for the upper mountingstud bolts can be marked through the holes in the uppermounting lugs.EnclosureTypeEnclosure SizeApproximateSupport WeightNorth American SpecificationsS254.0 203.2 165.1 mm [10″ 8″ 6.5″]4.99 kg [11 lbs]M304.8 304.8 215.9 mm[12″ 12″ 8.5″]9.98 kg [22 lbs]N501.65 355.6 215.9 mm[19.75″ 14.75″ 8.5″]21.32 kg [47 lbs]A501.65 501.65 266.7 mm[19.75″ 19.75″ 10.5″]28.12 kg [62 lbs]European Specifications26 A P P L I C AT I O N&S199.90 334.01 163.58 mm [7.87″ 13.15″ 6.44″]M299.97 384.05 213.61 mm [11.81″ 15.12″ 8.41″]9.98 kg [22 lbs]N400.05 551.94 213.61 mm[15.75″ 21.73″ 8.41″]21.32 kg [47 lbs]A500.13 583.95 263.40 mm[19.69″ 22.99″ 10.37″]28.12 kg [62 lbs]I N S TA L L AT I O NG U I D E L I N E S4.99 kg [11 lbs]
GroundingGround connection is made to the ground terminal mountedon the inside of the Rayvoss enclosure. A short and straightcable should make the connection to the power ground or tothe main ground bar at the installation location.Do not use the mountinglugs for the safety andprotection ground.Rayvoss Installation Guidelines 27
Raycap Worldwide LocationsRaycap Inc.806 South Clearwater LoopPost Falls, ID 83854United States of AmericaSTEALTHConcealment Solutions, Inc.a Raycap Group Company3034-A Ashley Phosphate RoadNorth Charleston, SC 29418United States of AmericaRaycap GmbHParkring 1185748 Garching MunichGermanyRaycap S.A.Telou & Petroutsou 1415124 Maroussi AthensGreeceRaycap S.A. ManufacturingIndustrial Area of Drama66100 DramaGreeceIskra Zaščite d.o.o.a Raycap Group CompanyPod hrasti 7Poslovna cona Žeje pri Komendi1218 KomendaSloveniaRaycap Cyprus Ltd.46 Lefkosias StreetIndustrial Area of Dali2540 NicosiaCyprusRaycap SAS84 rue Charles Michel93200 Saint-DenisFranceRaycap Corporation SRL4A, Johann Strauss, 4 Floor,Sector 2, 020312 BucharestRomaniaRaycap (Suzhou) Co. Ltd.Block B, Phase IIof New Sea UnionNo. 58 Heshun RoadSIP, Suzhou 215122Jiangsu ProvinceChinaInformation provided in this documentis subject to change without notice.raycap.com info@raycap.comRaycap, Rayvoss and Strikesorb are registered trademarks. 2018 Raycap All rights reserved.G09-00-116 180201
recognized surge protection module in the industry rated for safe operation without the use of additional internal fuses. This unique feature, combined with its capability to be connected directly on the power lines (feed-through connection), makes it the most reliable surge protection de
steady fl ow from the header tank through the surge pipe. This fl ow creates a measurable head loss (due to friction) along the surge pipe from the header tank to the surge tower. To create the surge, students quickly shut the surge valve downstream of the surge pipe. VDAS displays and records the pressure surge in the surge tower. Students
surge protection arrangement is required to be done at different levels. 1.3 Surge protection devices (SPDs) Surge Protection Devices can protect the electronic equipment from the potentially destructive effects of high-voltage transients.The Surge Protection Devices have following features: 1. Rapid operation, 2. Accurate voltage control and 3.
surge protection units provide premier surge protection for AC power at the service entrance. These products provide protection for residential electrical equipment by reducing power surges to an acceptable level for surge strips to handle at the point of use. UL 1449 3rd Edition Type 1 and Type 2 Surge Protection Type 1 Surge Protective
Surge ProtectIon STV 200/400K Series 7 . Surge protective devices tailored to protect CCTV, data, audio and cable applications. StFv . Surge ProtectIve devIce/FIlter APPlIcAtIon SelectIon tAble Surge Protection Active Tracking Filtering With Surge Protection Data/Signal
Type 2 surge arresters are tested with a 8/20 ms current wave. Type 3 surge arresters are tested with a 1.2/50 ms and 8/20 ms combined wave. Protection Load protection iPRD, iPRD IT surge arresters Type 2 or 3 LV withdrawable surge arresters Each surge arrester in the range has a specific application: b incoming protection (type 2):
The coincidence of wind surge, spring high tide and external surge leads to extreme storm surge levels along the coast (figure 4). Figure 4: The components of a storm surge. Thus a storm surge is composed of the local tides, wind surge and a possible external surge. In the project storm surges from 1901 until 2008 at tidal gauge
close to the source of interference as possible as protection against swit-ching surge voltages. In the case of buildings with an external lightning protection system or in the case of supply via an exposed cable, a type 1 surge arrester must also be used. Protection area OBO surge protection devices limit the voltage at the installation location
Unit-1: Introduction and Classification of algae (04L) i) Prokaryotic and Eukaryotic algae ii) Classification of algae according to F. E. Fritsch (1945), G.W. Prescott and Parker (1982)
