REVISION 9 NAVAL SHIPS’ TECHNICAL MANUAL CHAPTER 300
S9086-KC-STM-010REVISION 9NAVAL SHIPS’ TECHNICAL MANUALCHAPTER 300ELECTRIC PLANT - GENERALSUPERSEDURE NOTICE: THIS MANUAL SUPERSEDES S9086-KC-STM-010,REVISION 8 DATED 1 FEB 2012 AND ALL CHANGES THERETO.DISTRIBUTION STATEMENT C: DISTRIBUTION AUTHORIZED TO U.S. GOVERNMENT AGENCIES ANDTHEIR CONTRACTORS; ADMINISTRATIVE OR OPERATIONAL USE; 11 MARCH 1997. OTHER REQUESTSFOR THIS DOCUMENT SHALL BE REFERRED TO NSWC, PHILADELPHIA CODE 944.WARNING: THIS DOCUMENT CONTAINS TECHNICAL DATA WHOSE EXPORT IS RESTRICTED BY THEARMS EXPORT CONTROL ACT (TITLE 22, U.S.C. SEC 2751, ET SEQ.) OR THE EXPORT ADMINISTRATIONACT OF 1979, AS AMENDED, TITLE 50, U.S.C., APP 2401 ET SEQ. VIOLATIONS OF THESE EXPORT LAWSARE SUBJECT TO SEVERE CRIMINAL PENALTIES. DISSEMINATE IN ACCORDANCE WITH PROVISIONSOF DOD DIRECTIVE 5230.25(D).DESTRUCTION NOTICE: DESTROY BY ANY METHOD THAT WILL PREVENT DISCLOSURE OF CONTENTSOR RECONSTRUCTION OF THIS DOCUMENT.PUBLISHED BY DIRECTION OF COMMANDER, NAVAL SEA SYSTEMS COMMAND*0910LP1123525*1 MAY 2012TITLE-1 / (TITLE-2 TLE@@!FIpgtype@@
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S9086-KC-STM-010RECORD OF REVISIONSREV NO.DATETITLE AND/OR BRIEF DESCRIPTION/PREPARING ACTIVITYORG12N/AN/A28 FEB 1991301 FEB 1996411 MAR 1997567831 DEC 200031 JUL 200301 APR 20051 FEB 201291 MAY 2012ORIGINAL PUBLICATION DATE NOT AVAILABLEREVISION 1 WAS NEVER ISSUEDREVISION 2 PUBLICATIONUPDATED DISTRIBUTION STATEMENTREVISION 2 PUBLICATIONUPDATED DISTRIBUTION STATEMENTREVISION 4 PUBLICATIONUPDATED DISTRIBUTION STATEMENTREVISION 5 PUBLICATIONREVISION 6 PUBLICATIONREVISION 7 PUBLICATIONNSTM CHAPTER 300 HAS BEEN COMPLETELY REVISED; NOCHANGE BARS WERE USED.TMDERS/ACNS INCORPORATED OR NO LOMGER APPLY:N39040-09-0216, N40025-07-CB03, N4523A-05-0002, N63393-060001, N65540-06-DU07, N65540-06-DU08, N65540-07-DU01,N65540-09-A002, N65540-09-S177, N65540-10-JC39, Q90613-07TB12, Q90613-09-JT01, R20832-08-0001, Z14501-07-SS01THIS REVISION CORRECTS AN ERROR ON TABLE 300-2-1BAND VARIOUS OTHER CHANGES.TMDERS/ACNS INCORPORATED:N65540-12-SA00 ACN 1/R8.PARAGRAPH(S) 300-2.7.4, 300-3.3.3.1.1, 300-3.3.3.2 AND 300-I.1.5TABLE(S) 300-2-1B, 300-2-2, 300-3-5, 300-I-1 AND 300-I-2FIGURE(S) 300-3-4FOR OPTIMAL VIEWING OF THIS TECHNICAL MANUAL THE PAGE LAYOUT IN ADOBE ACROBATREADER SHOULD BE SINGLE PAGE. CONTINUOUS PAGE DISPLAY CAN CAUSE PROBLEMS WITHLINK REFERENCES AND THE BOOKMARKS.RECORD OF REVISIONS-1 / (RECORD OF REVISIONS-2 Blank)
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S9086-KC-STM-010FOREWORDThis technical manual provides description, identification, control, and component information for theElectric Plant. This technical manual is intended for guidance of and use by personnel operating and maintaining the equipment described herein.This manual consists of one chapter and nine appendices as follows:Chapter 300 - Electric Plant GeneralSection 1 - Sources of InformationSection 2 - Electrical Safety PrecautionsSection 3 - Electrical InsulationSection 4 - Maintenance of Electrical EquipmentSection 5 - Reconditioning Electrical Equipment after Contamination by Seawater, Oil, Carbon Dust,or a Combination of these MaterialsAppendix A - Electrical Insulating MaterialsAppendix B - Certification Procedure for Providing Motors with a Sealed Insulations SystemAppendix C - Certification Procedures for Refurbishment of Submarine Ship Service/400 Hz MotorGenerator SetsAppendix D - Banding Armatures with Resin-Treated Fibrous-Glass Banding TapeAppendix E - Trickle Method of Shipboard Motor RepairAppendix F - Quality Assurance Inspection Procedures and Information for Application of InsulatingVarnishes to Navy Electrical EquipmentAppendix G - Safety SupplementAppendix H - Electrical/Electronic WorkbenchesAppendix I - PPE, Safety EquipmentShips, training activities, supply points, depots, Naval Shipyards, and Supervisors of Shipbuilding arerequested to arrange for the maximum practical use and evaluation of NAVSEA technical manuals. All errors,omissions, discrepancies, and suggestions for improvement to NAVSEA technical manuals shall be reported totheCOMMANDERCODE 310 TMDERsNAVSURFWARCENDIV NSDSA4363 MISSILE WAY BLDG 1389Port Hueneme, CA 93043-4307 on NAVSEA/ SPAWAR Technical Manual Deficiency/EvaluationReport (TMDER), NAVSEA Form 4160/1. To facilitate such reporting, print, complete, and mailNAVSEA Form 4160/1 at end of TM or submit TMDERS at web site http://nsdsa.nmci.navy.mil. Allfeedback comments shall be thoroughly investigated and originators will be advised of action resulting therefrom.FOREWORD-1 / (FOREWORD-2 Blank)
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S9086-KC-STM-010TABLE OF CONTENTSChapter/ParagraphPage300ELECTRICAL PLANT GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . .1-1SECTION 1SOURCES OF INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1300-1.1 SCOPE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .300-1.1.1 GENERAL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-11-1300-1.2 SOURCES OF INFORMATION. . . . . . . . . . . . . . . . . . . . . . .300-1.2.1 CHAPTERS IN THE NAVAL SHIPS’ TECHNICAL MANUAL.300-1.2.2 SHIP INFORMATION BOOK. . . . . . . . . . . . . . . . . . .300-1.2.3 TECHNICAL MANUALS. . . . . . . . . . . . . . . . . . . . . .300-1.2.4 DRAWINGS. . . . . . . . . . . . . . . . . . . . . . . . . . . . .300-1.2.5 DAMAGE CONTROL BOOK. . . . . . . . . . . . . . . . . . .300-1.2.6 PLANNED MAINTENANCE SYSTEM. . . . . . . . . . . . . .300-1.2.7 DOCUMENTS AND PUBLICATIONS. . . . . . . . . . . . . .300-1.2.8 REFERENCES. . . . . . . . . . . . . . . . . . . . . . . . . . . .1-11-11-21-21-21-31-31-31-5ELECTRICAL SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . .2-1SECTION 2300-2.1 NEED FOR SAFETY PRECAUTIONS. . . . . . . . . .300-2.1.1 GENERAL. . . . . . . . . . . . . . . . . . . . .300-2.1.1.1 Personal Responsibility. . . . . . . .300-2.1.1.2 Contradictory Guidance. . . . . . . .300-2.1.1.3 Chapter 300 Overview. . . . . . . .300-2.1.2 ELECTRIC HAZARDS. . . . . . . . . . . . . .300-2.1.2.1 Electric Shock. . . . . . . . . . . . .300-2.1.2.2 Rescuing an Electric Shock Victim.300-2.1.2.3 Arc Flash. . . . . . . . . . . . . . .300-2.1.2.4 Arc Blast. . . . . . . . . . . . . . . .300-2.1.2.5 Flash Protection Boundaries (FPB).300-2.1.3 INDIVIDUAL RESPONSIBILITY. . . . . . . .300-2.1.3.1 Principles. . . . . . . . . . . . . . .2-12-12-12-12-12-22-22-32-32-32-42-52-5300-2.2 SHIPBOARD ELECTRICAL SYSTEMS. . . . . . . . . . . . . . . . . . . . . .300-2.2.1 EQUIPMENT GROUNDING AND SYSTEM GROUNDING. . . . . .300-2.2.1.1 Principles. . . . . . . . . . . . . . . . . . . . . . . . . . . .300-2.2.1.2 Requirements. . . . . . . . . . . . . . . . . . . . . . . . . .300-2.2.1.3 System Grounding. . . . . . . . . . . . . . . . . . . . . . .300-2.2.1.4 Receptacle Grounding. . . . . . . . . . . . . . . . . . . . .300-2.2.2 CHARACTERISTICS OF AN UNGROUNDED SYSTEM. . . . . . .300-2.2.2.1 Ungrounded System Misconception. . . . . . . . . . . . . .300-2.2.3 SHIPBOARD UNGROUNDED SYSTEM. . . . . . . . . . . . . . . . .300-2.2.3.1 Inherent System Resistances to Ground. . . . . . . . . . . .300-2.2.3.2 Inherent System Capacitances to Ground. . . . . . . . . . .300-2.2.3.3 Electromagnetic Interference (EMI) Filters. . . . . . . . . .300-2.2.3.4 High-Resistance Grounding Subsystems (Where i
S9086-KC-STM-010TABLE OF CONTENTS - ContinuedChapter/ParagraphPage300-2.2.3.5Transient Voltage Surge Suppression Systems (TVSS) (WhereInstalled). . . . . . . . . . . . . . . . . . . . . . . . . . . .300-2.2.3.6 Arc Fault Detection (AFD) Systems (Where Installed). . . .300-2.2.4 ELECTRIC SHOCK FROM SHIPBOARD SYSTEM. . . . . . . . . . .300-2.2.4.1 Path for Current Flow. . . . . . . . . . . . . . . . . . . . . . .2-82-82-92-9ELECTRICAL SAFETY REQUIREMENTS FOR EQUIPMENT MAINTENANCE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .300-2.3.1 EQUIPMENT MAINTENANCE. . . . . . . . . . . . . . . . . . . . . . . . .300-2.3.1.1 Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .300-2.3.1.2 Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . .300-2.3.2 BATTERY WELL ELECTRICAL SAFETY REQUIREMENTS. . . . . . . .300-2.3.3 EQUIPMENT ISOLATION. . . . . . . . . . . . . . . . . . . . . . . . . . . .300-2.3.3.1 Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . .300-2.3.3.2 Discussion. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .300-2.3.4 QUALIFIED WORKER. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .300-2.3.4.1 Consideration. . . . . . . . . . . . . . . . . . . . . . . . . . . . .300-2.3.4.2 Demonstration. . . . . . . . . . . . . . . . . . . . . . . . . . . . .300-2.3.4.3 Task Analysis. . . . . . . . . . . . . . . . . . . . . . . . . . . . .300-2.3.4.4 Supervisor’s Role. . . . . . . . . . . . . . . . . . . . . . . . . . .300-2.3.5 WARNING SIGNS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -162-16300-2.3300-2.4 ENERGIZED WORK GENERAL REQUIREMENTS. . . . . .300-2.4.1 ENERGIZED WORK PLANNING. . . . . . . . . . . .300-2.4.1.1 Principles. . . . . . . . . . . . . . . . . . .300-2.4.1.2 Requirements. . . . . . . . . . . . . . . . .300-2.4.2 ENERGIZED WORK REQUIREMENTS. . . . . . . .300-2.4.3 ENERGIZED WORK - SPECIFIC REQUIREMENTS.300-2.4.3.1 Principles. . . . . . . . . . . . . . . . . . .300-2.5 EXCEPTIONS TO ENERGIZED WORK REQUIREMENTS. . . . . . . . .300-2.5.1 INITIAL VOLTAGE VERIFICATION (IVV). . . . . . . . . . . . .300-2.5.1.1 Discussion. . . . . . . . . . . . . . . . . . . . . . . . . .300-2.5.1.2 Requirements. . . . . . . . . . . . . . . . . . . . . . . .300-2.5.1.3 Identification and Control of Stray Voltage. . . . . . . .300-2.5.1.4 Requirements for IVV Checks Less Than 1000 Volts. .300-2.5.1.5 Requirements for IVV Checks Greater Than or Equal toVolts. . . . . . . . . . . . . . . . . . . . . . . . . . . .300-2.5.2 SAFE-TO-WORK (STW) VOLTAGE CHECK REQUIREMENTS.300-2.5.3 FUSE REMOVAL AND REPLACEMENT. . . . . . . . . . . . . . .300-2.5.3.1 Discustion. . . . . . . . . . . . . . . . . . . . . . . . . .300-2.5.3.2 Requirements. . . . . . . . . . . . . . . . . . . . . . . .300-2.5.3.3 Internal Dead-Front Fuseholders. . . . . . . . . . . . . .300-2.5.3.4 Exceptions For Critical Equipment. . . . . . . . . . . .300-2.5.3.5 Exceptions For Dead-Front Fuseholders. . . . . . . . . .300-2.5.3.6 General Inspection of Fuses and Fuseholders. . . . . . .ii.2-162-162-162-172-182-192-20. . . . . . . . . . . . .1000. . . . . . . . . . . . . . . . . . 2-342-342-36
S9086-KC-STM-010TABLE OF CONTENTS - ContinuedChapter/ParagraphPage300-2.5.4CIRCUIT BREAKER REMOVAL AND REPLACEMENT AND BUSDISCONNECT LINK OPERATION. . . . . . . . . . . . . . . . . . . . . .300-2.5.4.1 Discussion. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .300-2.5.4.2 General Requirements. . . . . . . . . . . . . . . . . . . . . . . .300-2.5.4.3 Requirements For Racking-In/Out Draw-Out Type CircuitBreakers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .300-2.5.4.4 Disconnect Links Operation. . . . . . . . . . . . . . . . . . . . .300-2.5.5 VISUAL INSPECTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . .300-2.5.5.1 Principles. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .300-2.5.5.2 Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . .300-2.5.6 REQUIREMENTS FOR ENERGIZED COVERED CIRCUITS. . . . . . . .300-2.5.7 REQUIREMENTS FOR ENERGIZED EQUIPMENT 30 VOLTS OR LESS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SPECIAL REQUIREMENTS WHILE WORKING ON DAMAGED EQUIPMENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .300-2.6.1 DAMAGED ELECTRICAL EQUIPMENT. . . . . . . . . . . . . . . . . .300-2.6.2 EQUIPMENT THAT CAUSES A SHOCK. . . . . . . . . . . . . . . . . . .300-2.6.3 INOPERATIVE OR MALFUNCTIONING EQUIPMENT. . . . . . . . . .300-2.6.4 WETTED EQUIPMENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . -452-452-462-462-46300-2.7 RECEPTACLE-CONNECTED SHIPBOARD ELECTRICAL EQUIPMENT. . . . .300-2.7.1 RECEPTACLE-CONNECTED SHIPBOARD ELECTRICAL EQUIPMENTDEFINITIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .300-2.7.1.1 General Precautions for Receptacle-Connected ShipboardElectrical Equipment. . . . . . . . . . . . . . . . . . . . . . . .300-2.7.2 ISOLATED RECEPTACLE CIRCUITS. . . . . . . . . . . . . . . . . . . . .300-2.7.2.1 Grounding of Receptacles. . . . . . . . . . . . . . . . . . . . . .300-2.7.3 ELECTRICAL EQUIPMENT TYPES. . . . . . . . . . . . . . . . . . . . . .300-2.7.3.1 Portable Electrical Tools/Devices. . . . . . . . . . . . . . . . . .300-2.7.3.2 Metal-Cased Tools/Devices. . . . . . . . . . . . . . . . . . . . . .300-2.7.3.3 Double-Insulated Tools/Devices. . . . . . . . . . . . . . . . . . .300-2.7.3.4 Non-Conducting Cased Tools/Devices. . . . . . . . . . . . . . . .300-2.7.3.5 Mobile Electrical Equipment. . . . . . . . . . . . . . . . . . . . .300-2.7.3.6 Commercially Available Mobile Electrical Equipment. ApprovalOf Commercially Available Electrical Equipment. . . . . . . .300-2.7.4 POWER CORDS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .300-2.7.4.1 Three-Conductor, Flexible Cables. . . . . . . . . . . . . . . . . .300-2.7.4.2 Four-Conductor Cords. . . . . . . . . . . . . . . . . . . . . . . .300-2.7.4.3 Replacement Cords. . . . . . . . . . . . . . . . . . . . . . . . . .300-2.7.4.4 Connecting Power Cord to Plug. . . . . . . . . . . . . . . . . . .300-2.7.4.5 Length of Power Cord. . . . . . . . . . . . . . . . . . . . . . . .300-2.7.4.6 Extension Cords and Plugs for Electrical Equipment. . . . . . .300-2.7.4.7 Testing and Inspection of Receptacle-Connected ElectricalEquipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . .300-2.7.5 TESTING GROUNDED RECEPTACLES. . . . . . . . . . . . . . . . . . . .300-2.7.5.1 Testing Receptacle Connections. . . . . . . . . . . . . . . . . . -532-532-532-532-532-542-542-542-562-56iii
S9086-KC-STM-010TABLE OF CONTENTS - ContinuedChapter/ParagraphPage300-2.7.6300-2.7.5.2 Periodic Test Of Grounded Receptacles. . . . . . . . . . . .APPROVAL OF PERSONALLY OWNED EQUIPMENT. . . . . . . .300-2.7.6.1 Management of Personal Electrical Gear. . . . . . . . . . .300-2.7.6.2 Approval of Personal Electric Gear. . . . . . . . . . . . . .300-2.7.6.3 Tagging of Personal Electric Gear. . . . . . . . . . . . . . .300-2.7.6.4 Removing Personal Electric Gear from Use. . . . . . . . .300-2.7.6.5 Personal Entertainment Gear. . . . . . . . . . . . . . . . . .300-2.7.6.6 Personal Irons, Coffee Pots, Hair Dryers, and Curling Irons.300-2.7.6.7 Personal Shavers. . . . . . . . . . . . . . . . . . . . . . . .300-2.7.6.8 Prohibited Personal Gear. . . . . . . . . . . . . . . . . . . .300-2.7.6.9 Individual Responsibility. . . . . . . . . . . . . . . . . . . . . . .8 PRECAUTIONS FOR MEDICAL SPACES. . . . . . . . . . . . . . . . .300-2.8.1 MEDICAL SPACES. . . . . . . . . . . . . . . . . . . . . . . . . .300-2.8.2 ELECTRICALLY SUSCEPTIBLE PATIENT (ESP) LOCATIONS.300-2.8.3 ISOLATION TRANSFORMERS. . . . . . . . . . . . . . . . . . .300-2.8.4 ISOLATED RECEPTACLES. . . . . . . . . . . . . . . . . . . . .300-2.8.5 LINE ISOLATION MONITORS. . . . . . . . . . . . . . . . . . .300-2.8.6 CIRCUIT BREAKER DISTRIBUTION PANEL. . . . . . . . . .300-2.8.7 EQUI-POTENTIAL REFERENCE (EPR). . . . . . . . . . . . . .300-2.8.8 GROUND RECEPTACLE BOX. . . . . . . . . . . . . . . . . . .300-2.8.9 GROUNDING CONDUCTORS. . . . . . . . . . . . . . . . . . . .300-2.8.10 GROUNDING CABLE ASSEMBLIES. . . . . . . . . . . . . . . .300-2.8.11 ELECTRICAL CORDS AND PLUGS. . . . . . . . . . . . . . . .300-2.8.12 POWER CONDUCTOR TO GROUND IMPEDANCE. . . . . . .300-2.8.13 LABEL PLATES. . . . . . . . . . . . . . . . . . . . . . . . . . . .300-2.8.14 RECEPTACLES FOR PORTABLE X-RAY MACHINES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -602-602-60300-2.9 RESUSCITATION FOR ELECTRIC SHOCK. . . . . . . . . . .300-2.9.1 SOURCE OF INSTRUCTIONS. . . . . . . . . . . . . . .300-2.9.2 SCENE SAFETY. . . . . . . . . . . . . . . . . . . . . . .300-2.9.3 CPR. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .300-2.9.3.1 Cardiac Arrest (Loss Of Heartbeat). . . . . .300-2.9.4 PRACTICE PERIODICALLY. . . . . . . . . . . . . . . .300-2.9.5 CERTIFICATION AND TRAINING REQUIREMENTS.2-602-602-612-612-612-612-61. . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1SECTION 3ELECTRICAL INSULATION300-3.1 INSULATING MATERIAL. . . . . . . . . . . . . . . . . .300-3.1.1 INSULATION NEED. . . . . . . . . . . . . . . .300-3.1.2 AIR SPACING. . . . . . . . . . . . . . . . . . . .300-3.1.3 INSULATION SYSTEM CLASSIFICATION. . .300-3.1.3.1 New or Modified Insulation System. .300-3.1.3.2 Temperature Classification. . . . . . .300-3.1.4 OPERATING TEMPERATURE. . . . . . . . . . .300-3.1.5 TEMPERATURE RISE. . . . . . . . . . . . . . .300-3.1.6 TEMPERATURE MEASUREMENT METHODS.iv.3-13-13-13-13-13-13-13-23-4
S9086-KC-STM-010TABLE OF CONTENTS - ContinuedChapter/ParagraphPage300-3.1.6.1 Method 1 - Thermometer Method. . . . .300-3.1.6.2 Method 2 - Resistance Method. . . . . .300-3.1.6.3 Method 3 - Infrared Method. . . . . . . .300-3.1.7 FUNDAMENTAL PROPERTIES OF INSULATION.300-3.1.7.1 Insulation Resistance. . . . . . . . . . . .300-3.1.7.2 Dielectric Strength. . . . . . . . . . . . .3-43-53-83-83-83-8300-3.2 INSULATION RESISTANCE MEASUREMENT. . . . . . . . . . . . . . . . . . .300-3.2.1 USE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .300-3.2.2 INSULATION RESISTANCE. . . . . . . . . . . . . . . . . . . . . . . . . .300-3.2.2.1 Parallel Resistance. . . . . . . . . . . . . . . . . . . . . . . . .300-3.2.3 MEASURING INSTRUMENTS. . . . . . . . . . . . . . . . . . . . . . . .300-3.2.4 INSULATION RESISTANCES IN UNGROUNDED POWER SYSTEMS.300-3.2.5 GROUND DETECTORS. . . . . . . . . . . . . . . . . . . . . . . . . . . .300-3.2.5.1 Active Ground Detectors. . . . . . . . . . . . . . . . . . . . . .300-3.2.5.1.5Effects of Capacitors. . . . . . . . . . . . . .300-3.2.5.2 Ground Detector Lights. . . . . . . . . . . . . . . . . . . . . . .300-3.2.5.3 Ground Detector Voltmeters. . . . . . . . . . . . . . . . . . . .300-3.2.6 INSULATION RESISTANCE MEASUREMENTS IN GROUNDEDPOWER SYSTEMS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .300-3.2.7 MEASUREMENT PRECAUTIONS. . . . . . . . . . . . . . . . . . . . . .300-3.2.7.1 Test Voltage Magnitude. . . . . . . . . . . . . . . . . . . . . . .300-3.2.7.2 Duration of Test Voltage Application. . . . . . . . . . . . . . .300-3.2.7.3 Residual Charge. . . . . . . . . . . . . . . . . . . . . . . . . . .300-3.2.7.4 Temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . -173-173-183-18300-3.3 CABLE INSULATION RESISTANCE. . . . . . . . . . . . . . . . . .300-3.3.1 FACTORS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .300-3.3.1.1 Other Apparatus Connected in Circuit. . . . . . . .300-3.3.1.2 Total Quantity of Cable. . . . . . . . . . . . . . . .300-3.3.1.3 Type of Cable. . . . . . . . . . . . . . . . . . . . .300-3.3.1.4 Temperature of Cable Jacket. . . . . . . . . . . . .300-3.3.2 BASIS OF ACCEPTANCE (CIRCUIT). . . . . . . . . . . . .300-3.3.2.1 Minimum Acceptable Values. . . . . . . . . . . . .300-3.3.3 BASIS OF ACCEPTANCE (ISOLATED CABLE). . . . . . .300-3.3.3.1 Determination of Minimum Insulation Resistance.300-3.3.3.3 Minimum Acceptable Values. . . . . . . . . . . . .300-3.3.4 PROCEDURE. . . . . . . . . . . . . . . . . . . . . . . . . . .300-3.3.4.1 Initial Check. . . . . . . . . . . . . . . . . . . . . .300-3.3.4.2 Circuits Under Test. . . . . . . . . . . . . . . . . -253-25300-3.4 INSULATION IN ROTATING ELECTRIC MACHINERY.300-3.4.1 FACTORS. . . . . . . . . . . . . . . . . . . . . . .300-3.4.1.1 Construction. . . . . . . . . . . . . . .300-3.4.1.2 Moisture. . . . . . . . . . . . . . . . .300-3.4.1.3 Temperature. . . . . . . . . . . . . . .300-3.4.1.4 Cleanliness. . . . . . . . . . . . . . . .3-293-293-293-303-303-31.v
S9086-KC-STM-010TABLE OF CONTENTS - ContinuedChapter/ParagraphPage300-3.4.1.5 Condition of Insulation. . . . . . . . . . . . . . . .MEASUREMENT PERIODICITY. . . . . . . . . . . . . . . .300-3.4.2.1 Warm Machines. . . . . . . . . . . . . . . . . . . .300-3.4.2.2 Cold Machines. . . . . . . . . . . . . . . . . . . .300-3.4.2.3 Installed Voltmeters. . . . . . . . . . . . . . . . . .300-3.4.3 ISOLATING THE MACHINE. . . . . . . . . . . . . . . . . .300-3.4.4 CIRCUIT ISOLATION CONSIDERATIONS. . . . . . . . . .300-3.4.5 CIRCUITS TO BE MEASURED. . . . . . . . . . . . . . . . .300-3.4.5.1 Brush Rigging. . . . . . . . . . . . . . . . . . . . .300-3.4.5.2 Applying Test Voltage. . . . . . . . . . . . . . . .300-3.4.5.3 Portable Equipment. . . . . . . . . . . . . . . . . .300-3.4.6 RECORDS. . . . . . . . . . . . . . . . . . . . . . . . . . . . .300-3.4.6.1 Data Example. . . . . . . . . . . . . . . . . . . . .300-3.4.6.2 Insulation Resistance Curve. . . . . . . . . . . . .300-3.4.7 INTERPRETING MEASUREMENTS. . . . . . . . . . . . . .300-3.4.7.1 Normal Degradation. . . . . . . . . . . . . . . . .300-3.4.7.2 Periodic Measurements. . . . . . . . . . . . . . . .300-3.4.7.3 Inspections. . . . . . . . . . . . . . . . . . . . . . .300-3.4.7.4 Instrument Response. . . . . . . . . . . . . . . . .300-3.4.8 MINIMUM VALUES. . . . . . . . . . . . . . . . . . . . . . .300-3-4.9 EXPLANATION OF TABLES. . . . . . . . . . . . . . . . . .300-3.4.9.1 Temperature Correction. . . . . . . . . . . . . . . .300-3.4.9.2 Minimum Values. . . . . . . . . . . . . . . . . . .300-3.4.9.3 Armature Circuit. . . . . . . . . . . . . . . . . . .300-3.4.9.4 Stator Circuit. . . . . . . . . . . . . . . . . . . . .300-3.4.9.5 Cleaning Definition. . . . . . . . . . . . . . . . . .300-3.4.10 INSULATION RESISTANCE OF MACHINES IN SERVICE.300-3.4.10.1 Exposure to Excessive Moisture and Dirt. . . . . .300-3.4.10.2 Abnormal Condition Unknown. . . . . . . . . . .300-3.4.11 INSULATION RESISTANCE AS A GUIDE IN OVERHAUL.300-3.4.12 POLARIZATION INDEX TEST. . . . . . . . . . . . . . . . .300-3.4.2300-3.5 SEQUENCE OF ELECTRICAL TESTS. . . . . .300-3.5.1 SEQUENCE TABLE. . . . . . . . . . . . .300-3.5.2 DC HIGH-POTENTIAL (HIPOT) TESTS.300-3.5.2.1 Applicability. . . . . . . . . . .300-3.5.2.2 Test Equipment. . . . . . . . .300-3.5.2.3 Test Procedure Instructions. . .300-3.5.3 AC HIGH-POTENTIAL TESTS. . . . . .300-3.5.3.1 Applicability. . . . . . . . . . .300-3.5.2 Procedure. . . . . . . . . . . .300-3.5.4 SURGE TESTS. . . . . . . . . . . . . . . .300-3.5.4.1 General. . . . . . . . . . . . . .300-3.5.4.2 Surge Tester. . . . . . . . . . .300-3.5.4.3 Armature Testing. . . . . . . .300-3.5.4.4 Armature Testing. . . . . . . .300-3.5.4.5 Three-Phase Machines. . . . -453-503-503-523-543-543-543-553-553-55
S9086-KC-STM-010TABLE OF CONTENTS - ContinuedChapter/ParagraphPage300-3.5.4.6 Test Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .300-3.5.4.7 Waveshape Interpretation. . . . . . . . . . . . . . . . . . . . . . .300-3.5.5 DC FIELD POLES AND COILS. . . . . . . . . . . . . . . . . . . . . . . . .SECTION 4MAINTENANCE OF ELECTRICAL EQUIPMENT300-4.1 GENERAL. . . . . . . . . . . . . . . . . . . . . . .300-4.1.1 SAFETY PRECAUTIONS. . . . . . . . . .300-4.1.1.1 Safety Checks on Accessories.300-4.1.2 PURPOSE OF MAINTENANCE. . . . . .3-553-553-55. . . . . . . . . . . . . . . .4-1.4-14-14-14-1300-4.2 PREVENTATIVE MAINTENANCE. . . . . . . . . . . . . . . . . .300-4.2.1 GENERAL. . . . . . . . . . . . . . . . . . . . . . . . . . .300-4.2.2 PERIODIC CLEANING AND INSPECTION. . . . . . . .300-4.2.3 EXPLOSION-PROOF ENCLOSURES. . . . . . . . . . . .300-4.2.3.1 Gap Clearances. . . . . . . . . . . . . . . . . .300-4.2.3.2 General Maintenance. . . . . . . . . . . . . . .300-4.2.3.3 Other Limited Applications. . . . . . . . . . . .300-4.2.4 RECORDS AND REPORTS. . . . . . . . . . . . . . . . . .300-4.2.4.1 Ship’s 3-M System. . . . . . . . . . . . . . . .300-4.2.5 PAINTING. . . . . . . . . . . . . . . . . . . . . . . . . . .300-4.2.5.1 Electrical Equipment Protection. . . . . . . . .300-4.2.5.2 Repainting. . . . . . . . . . . . . . . . . . . . .300-4.2.5.3 Other Painting Precautions. . . . . . . . . . . .300-4.2.6 REPAIR PARTS. . . . . . . . . . . . . . . . . . . . . . . .300-4.2.6.1 Repair Parts Record. . . . . . . . . . . . . . . .300-4.2.7 REORDERING AND REFERENCING -44-44-44-4300-4.3 PROTECTION FROM MECHANICAL SHOCK. . . . . . . . . . .300-4.3.1 EFFECT OF MECHANICAL SHOCK ON EQUIPMENT.300-4.3.2 SHOCK RESISTANCE IMPROVEMENT. . . . . . . . . .300-4.3.2.1 Shock Mounts. . . . . . . . . . . . . . . . . . .300-4.2.2.2 Shock Mount Approvals. . . . . . . . . . . . .300-4.3.3 AVOIDING DAMAGE FROM SHOCK. . . . . . . . . . .4-44-44-54-54-54-5300-4.4 PROTECTION FROM MOISTURE. . . . . . . . . . . . . . . . .300-4.4.1 EFFECT OF MOISTURE. . . . . . . . . . . . . . . . . .300-4.4.2 WATER FROM VENTILATION DUCTS. . . . . . . . .300-4.4.2.1 Susceptible Equipment. . . . . . . . . . . . .300-4.4.2.2 Corrective Measures. . . . . . . . . . . . . .300-4.4.2.3 Effect of Changes on Vent System. . . . . . .300-4.4.3 WATER FROM PIPING. . . . . . . . . . . . . . . . . . .300-4.4.4 HEATING TO KEEP IDLE EQUIPMENT DRY. . . . . .300-4.4.4.1 Electric Lamps. . . . . . . . . . . . . . . . .300-4.4.4.2 Heating DC Machine by Circulating Current.300-4.4.5 OTHER METHODS TO KEEP EQUIPMENT DRY. . .4-64-64-64-64-74-74-74-74-74-74-8.vii
S9086-KC-STM-010TABLE OF CONTENTS - ContinuedChapter/ParagraphviiiPage300-4.5 CLEANING, DRYING, AND REPAIRING INSULATION. . . . . . . . . . . . . .300-4.5.1 CLEANING INSULATION -GENERAL. . . . . . . . . . . . . . . . . . . .300-4.5.2 COMPRESSED AIR CLEANING. . . . . . . . . . . . . . . . . . . . . . .300-4.5.3 SUCTION CLEANING. . . . . . . . . . . . . . . . . . . . . . . . . . . . .300-4.5.4 SOLVENT CLEANING. . . . . . . . . . . . . . . . . . . . . . . . . . . . .300-4.5.5 HIGH-PRESSURE WATER SPRAY. . . . . . . . . . . . . . . . . . . . . .300-4.5.5.1 Cleaning Solution. . . . . . . . . . . . . . . . . . . . . . . . . .300-4.5.5.3 Dry Ice (CO2) Blasting. . . . . . . . . . . . . . . . . . . . . . .300-4.5.6 CORE TESTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .300-4.5.7 REPAIRING DEFECTIVE INSULATION. . . . . . . . . . . . . . . . . . .300-4.5.7.1 Rewinding Machines with Random Windings. . . . . . . . . .300-4.5.7.2 Stripping Procedures. . . . . . . . . . . . . . . . . . . . . . . .300-4.5.7.3 Silicone Insulation Restriction. . . . . . . . . . . . . . . . . . .300-4.5.7.4 Electrical Tests. . . . . . . . . . . . . . . . . . . . . . . . . . .300-4.5.7.5 Varnishing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .300-4.5.7.6 Sealed Insulation Systems. . . . . . . . . . . . . . . . . . . . .300-4.5.7.7 Rewinding Machines with Formed Coils. . . . . . . . . . . . .300-4.5.7.8 Rewinding Field Coils. . . . . . . . . . . . . . . . . . . . . . .300-4.5.7.9 Submarine Motor-Generator Sets. . . . . . . . . . . . . . . . .300-4.5.7.10 Reconditioning. . . . . . . . . . . . . . . . . . . . . . . . . . .300-4.5.7.11 Ball Bearings for Rewound Motors. . . . . . . . . . . . . . . .300-4.5.7.12 Testing of Rewound
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container ships, general cargo ships, dry bulk ships, liquid bulk ships (i.e., tankers), and cruise ships. The ports of interest engage in freight cargo, fishing, and passenger operation activities. Table 1 lists the vessel categories that
Jan 07, 2011 · Naval Campaigns User Manual . Introduction . Naval Campaignsis a series of games covering modern naval actions including actions such as the World War I naval battle of Jutland. Each game consists of a series of scenarios based on the historical battle with hypothetical scenarios as well.
2.1 ASTM Standards:2 C186 Test Method for Heat of Hydration of Hydraulic Cement C1679 Practice for Measuring Hydration Kinetics of Hy-draulic Cementitious Mixtures Using Isothermal Calorim-etry E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method 3. Terminology 3.1 Definitions of Terms Specific to This Standard: 3.1.1 baseline, n—the time-series .
