Protectowire Linear Heat Detector

1 Installation, Operation & Maintenance ManualProtectowireLinear heat 3/29/11 9:50 AM Page 1 Protectowire Linear heat DetectorInstallation Har dwareTYPE EPC VINYL JA CKETPHSC-155-EPC 155 (68 C)Max. Recommended Ambient Temp 115 F (46 C)PHSC-190-EPC 190 (88 C)Max. Recommended Ambient Temp 150 F (66 C)PHSC-220-EPC 220 (105 C)Max. Recommended Ambient Temp 175 F (79 C)PHSC-280-EPC 280 (138 C)Max. Recommended Ambient Temp 200 F (93 C)PHSC-356-EPC 356 (180 C)Max. Recommended Ambient Temp 221 F (105 C)TYPE XCRFLUOROPOLYMER JA CKETPHSC-155-XCR 155 (68 C)Max. Recommended Ambient Temp 115 F (46 C)PHSC-190-XCR 190 (88 C)Max. Recommended Ambient Temp 150 F (66 C)PHSC-220-XCR 220 (105 C)Max. Recommended Ambient Temp 175 F (79 C)PHSC-280-XCR 280 (138 C)Max. Recommended Ambient Temp 200 F (93 C)PHSC-356-XCR 356 (180 C)Max.

2 Recommended Ambient Temp 250 F (121 C)TYPE PLR-RTHERMOPLASTIC ELASTOMER JA CKETPLR-155R 155 (68 C)Max. Recommended Ambient Temp 115 F (46 C)PLR-190R 190 (88 C)Max. Recommended Ambient Temp 150 F (66 C)TYPE XLT PROPRIETARY POLYMER JA CKETPHSC-135-XLT 135 (57 C)Max. Recommended Ambient Temp 100 F (38 C)PWSK-3 Serviceable Splicing ConnectorPFLF lexible LeadPM-3 Pipe StrapBC-2 Beam ClampWAW ClipOHS-SSStainless Steel Line ClipHPC-2 CableTray ClipCC-2 Cable Tray ClipPWSCS plicing Connector Protectowire Linear heat DetectorInstallation Har dwareTYPE EPC VINYL JA CKETPHSC-155-EPC 155 (68 C)Max. Recommended Ambient Temp 115 F (46 C)PHSC-190-EPC 190 (88 C)Max. Recommended Ambient Temp 150 F (66 C)PHSC-220-EPC 220 (105 C)Max. Recommended Ambient Temp 175 F (79 C)PHSC-280-EPC 280 (138 C)Max.

3 Recommended Ambient Temp 200 F (93 C)PHSC-356-EPC 356 (180 C)Max. Recommended Ambient Temp 221 F (105 C)TYPE XCRFLUOROPOLYMER JA CKETPHSC-155-XCR 155 (68 C)Max. Recommended Ambient Temp 115 F (46 C)PHSC-190-XCR 190 (88 C)Max. Recommended Ambient Temp 150 F (66 C)PHSC-220-XCR 220 (105 C)Max. Recommended Ambient Temp 175 F (79 C)PHSC-280-XCR 280 (138 C)Max. Recommended Ambient Temp 200 F (93 C)PHSC-356-XCR 356 (180 C)Max. Recommended Ambient Temp 250 F (121 C)TYPE PLR-RTHERMOPLASTIC ELASTOMER JA CKETPLR-155R 155 (68 C)Max. Recommended Ambient Temp 115 F (46 C)PLR-190R 190 (88 C)Max. Recommended Ambient Temp 150 F (66 C)TYPE XLT PROPRIETARY POLYMER JA CKETPHSC-135-XLT 135 (57 C)Max. Recommended Ambient Temp 100 F (38 C)PWSK-3 Serviceable Splicing ConnectorPFLF lexible LeadPM-3 Pipe StrapBC-2 Beam ClampWAW ClipOHS-SSStainless Steel Line ClipHPC-2 CableTray ClipCC-2 Cable Tray ClipPWSCS plicing Connector Note: Colors shown are for illustrative purposes only.

4 Actual jacket colors may the present time there is no code or recommended standards in the United States specificallycovering system design requirements for Linear heat Detection Systems. In the past, informationpertinent to designing this type of system has been difficult to locate and generally based uponexisting requirements for spot heat detection view of these factors, this manual has been designed to outline basic principles which shouldbe utilized in the design and layout of a Protectowire Linear heat Detection System. These prin-ciples are based upon years of system design experience as well as nationally recognized coderequirements or approval agency standards. In addition, these principles recognize the operatingcharacteristics of the Protectowire Detector and the environmental factors which may either aidor hinder its is important to realize that codes, standards and other relevant material which may have beenused in preparing this manual, are dynamic documents which are subject to change over have made a conscientious effort to ensure that all references in this manual which pertain tooutside approvals, regulatory requirements, codes or standards are current and as up-to-date aspossible.

5 However, we recommend that in applications where a specific code requirement orinstallation standard is required, the Authority Having Jurisdiction (AHJ) be consulted to ensurecompliance. In all cases, local codes or installation requirements as stipulated or approved by theAHJ shall take PageIntroduction ..1 Product Description ..1 How It Works ..2 Electrical Arrangement ..2 Maximum Copper Feed Cable Length (Table 1)..3 General Ratings ..5 Detector Location and Spacing ..6 Protectowire Model Numbers and Maximum Listed Spacing ..6 Pre-Action Sprinkler Systems ..9 Environmental Considerations ..10 PWS Splicing Sleeves ..10 Splicing Connectors ..11 Installation Detail ..12 Fasteners.

6 12 General Purpose ..12 Cable Trays ..15 Pipe Mounting ..15 Messenger Wire ..16 Installation Warnings ..17 Special Application Installations ..18 Cable Trays ..18 Power Distribution Dust Collectors/Baghouses ..21 Open Rack Storage ..21 Floating Roof Tanks ..21 Refrigerated Storage Self-Storage Warehouses ..23 Inspection and Testing ..24 Protectowire Test Resistant Chart for Protectowire Jacket Materials EPC, XLT, CTI, PLR-R ..26 Chemical Resistant Chart for Protectowire Jacket Material XCR, 2015, The Protectowire Co., Inc, Pembroke, Massachusetts 02359 1 IntroductionSince The Protectowire Company introducedthe first Linear Type heat Detector in the UnitedStates over 75 years ago, this type of Detector ,with its unique characteristics, has beenemployed in applications where it has provento be a highly reliable form of fire construction and operating principles ofthe various Linear heat detectors that are avail-able today, can with few exceptions, be classi-fied in the following major categories:Analog (Integrating) Linear Type HeatDetectors - These detectors are composed of sensing ele-ments whose response to temperature issummed in some way along the length of theentire cable.

7 The resistance of the insulationbetween the conductors is monitored by acontrol unit which may have adjustable alarmthreshold settings. Typically, as the temperature of the cableincreases, the wire s resistance will the preset alarm threshold is reached analarm condition is signaled by the control Linear Type heat detectors - Digital type detectors , such as Protectowire ,consist of sensing elements which respond toa specific temperature at any point along theirlength. The inner conductors are coated witha polymer that melts at a predetermined tem-perature which allows the conductors tomake contact with one another and therebysignal an alarm condition. While several other types of sensing technolo-gies, such as fiber optics and pressurizedpneumatic tubing are also in use, the twoproduct categories stated above are the mostwidely used present NFPA 72 National Fire Alarm andSignaling Code, provides basic information onthe application of Linear heat detectors such aslocation and spacing distances for area protec-tion.

8 The ability to correctly engineer the appli-cation of these detectors to special hazards,however, is provided mainly by the manufac-turers who have developed this technologyand expertise over the view of these factors, the purpose of thismanual is to ensure that coverage of the areato be protected is in accordance with acceptedfire protection principles and to provide uni-form installation guidance. Whenever there isa choice between two or more possible proce-dures, the one which results in increased pro-tection should be followed. Also discussed willbe the operating characteristics of theProtectowire sensor and the environmentalfactors which may influence its DescriptionProtectowire Linear heat Detector is com-prised of two steel conductors individuallyencased in a heat sensitive polymer.

9 Theencased conductors are twisted together toimpose a spring pressure between them, thenspirally wrapped with a protective tape andfinished with an outer jacket to suit the instal-lation Detector s current product range consistsof five distinct types of cable. Each designa-tion identifies a specific model type and outerjacket material which has unique characteris-tics that have been selected to accommodatethe widest range of installation -Type EPC consists of a durable vinylouter jacket. This series is best described asmultipurpose and is well suited to a widerange of both commercial and industrial appli-cations. The outer jacket provides good all-around performance for most installations. Itfeatures low moisture absorption, resistance tomany common chemicals, excellent flexibilityat low temperatures and is flame -Type XCR utilizes a high performancefluoropolymer jacket.

10 This Detector is specifi-cally designed for use in applications whereextreme environmental and product perfor-mance criteria must be met. In general, theflame retardant, low smoke XCR jacket pro-vides excellent abrasion resistance andmechanical properties over a broad range oftemperatures. It provides excellent chemicaland permeation resistance to a wide variety ofacids, bases, and organic solvents as well as2simple gases. In addition, the jacket exhibitsvery little change in tensile properties uponoutdoor exposure to sunlight and - Protectowire Type XLT is a uniquedetector that has been designed for use incold storage facilities and other applicationsthat require a low alarm activation tempera-ture. The outer jacket is a proprietary flameretardant polymer that provides low moistureabsorption, good chemical resistance andexcellent low temperature performance.