6/4/2017. Advances in technology to address safety. Thomas A. Domitrovich, P.E., LEED AP VP, Technical Sales Eaton
|
|
- Mabel Potter
- 5 years ago
- Views:
Transcription
1 Advances in technology to address safety Thomas A. Domitrovich, P.E., LEED AP VP, Technical Sales Eaton 1
2 Advances in technology could mean use existing technology & back to basics Advances in safety are often driven by Codes and Standards Our library continues to grow! 2
3 Working de energized is a journey The journey begins with energized work Maintenance Reducing Time Reducing Current Shock, Arc Flash, Arc Blast Adding Barriers Adding Distance 3
4 Current & Time Two key parameters in our story of incident energy and shock + Current Time Maintenance Reducing Time Adding Barriers Reducing Let s talk about reducing the Current time we permit current to flow and preventing Shock, Arc Flash, Arc Blast incidental contact with energized conductors Adding Distance 4
5 Reducing Time Reduced clearing times can protect a person from shock The severity of the shock is affected by three primary factors Magnitude Amount of current flowing through the body, influenced both by the magnitude of the driving voltage and the total resistance of the path that current takes though your body Path The path of the current through the body Current that flows through your chest cavity is more likely to cause harm than current that flows through an extremity Time Length of time the body is in the circuit. 5
6 The severity of the shock is affected by three primary factors Magnitude Amount of current flowing through the body, influenced both by the magnitude of the driving voltage and the total resistance of the path that current takes though your body We CAN control the amount of time current is permitted to flow Time Length of time the body is in the circuit. The severity of the shock is affected by three primary factors Electronics will continue to change our landscape 6
7 UL Curve Defining Performance Tripping Of A GFCI Device UL 943 People Protection Ground Fault Circuit Interrupters Pickup Up From 4 6 ma Trip time ~15 ms UL 1053 Equipment Protection GF Sensing & Relaying Equipment Leakage within 10% of level defined by manufacturer 7
8 Ground Fault Protection of Equipment. A system intended to provide protection of equipment from damaging line to ground fault currents by operating to cause a disconnecting means to open all ungrounded conductors of the faulted circuit. This protection is provided at current levels less than those required to protect conductors from damage through the operation of a supply circuit overcurrent device. Ground Fault Circuit Interrupter (GFCI). A device intended for the protection of personnel that functions to de energize a circuit or portion thereof within an established period of time when a current to ground exceeds the values established for a Class A device. Informational Note: Class A ground fault circuit interrupters trip when the current to ground is 6 ma or higher and do not trip when the current to ground is less than 4 ma. For further information, see UL 943, Standard for Ground Fault Circuit Interrupters. Reducing Time Reducing the time that arcing current is permitted to flow reduces incident energy 8
9 Reducing Time Reducing the time that arcing current is permitted to flow reduces incident energy An Arc Flash Is The Light, Heat, Sound And Gases Produced As A Result Of A Rapid Release Of Energy Due To An Arcing Fault Sustained By The Establishment Of A Highly Conductive Plasma. 9
10 Bolted Fault Arcing Fault Systems must be designed for worst case conditions However, the majority of faults will be arcing type The Amount of Energy Released Is Based on The Amount of Current and Time Arcing fault basics Arcing Fault 3.2 arcing fault current: A fault current flowing through an electrical arc plasma, also called arc fault current and arc current IEEE Std IEEE Guide for Performing Arc Flash Hazard Calculations 10
11 Bolted Fault Current (ka) Arcing Current (ka) V, Panelboard, Solidly Grounded System IEEE 1584, IEEE Guide for Performing Arc Flash Hazard Calculations 85% Arcing Current (ka) Bolted Fault Current (ka) Arcing Current (ka) V, Panelboard, Solidly Grounded System IEEE 1584, IEEE Guide for Performing Arc Flash Hazard Calculations 85% Arcing Current (ka) 11
12 Time In Seconds Long Time Pickup Long Time Delay Short Time Pickup Short Time Delay (I2t) The Time Current Characteristic (TCC) Curve Instantaneous Pickup Three Regions Long time: Opening in minutes Short time: Opening in seconds or tenths of seconds. Instantaneous: Opening with no intentional delay Multiples of Rated Current Molded Case Circuit Breakers Miniature G Frame E Frame F Frame J Frame K Frame L Frame M Frame N Frame R Frame A A A A A A A A A A Continuous Ampere Ratings from 15A to 2500A Frame Interrupting Capabilities of 10kA to 100kA Industrial AND Residential Applications Typically fixed mounted and no maintenance capabilities (must be replaced). 12
13 MCCB Time Current Curves Fixed Instantaneous Adjustable Instantaneous MCCB Time Current Curves Instantaneous Pickup Values Fixed Instantaneous pickup values can range from 10X Rating to more than 20X rating of the breaker Fixed Clearing Time 0.01 to 0.02 s Adjustable clearing 0.05 s 13
14 Insulated Case Circuit Breakers Ampacity Ratings (800A 6000A) Interrupting Ratings (35 150kA) High instantaneous override and short time delay for increased coordination ICCB Time Current Curve Exercise Adjustability 14
15 ICCB Time Current Curve Exercise Instantaneous pickup values typically 12X the frame ratings not the long time pick up rating Fixed Clearing Time 0.02 sec Adjustable clearing 0.06 sec Adjustability Low Voltage Power Circuit Breakers Amp Ratings (800A 4000A) Interrupting Rating from 42kA to 100kA and Current Limiting Up To 200kA 15
16 LVPCB Time Current Curve LVPCB Time Current Curve Instantaneous can be turned OFF Short Time Delay can be upwards of 30 Cycles (0.48 Seconds) 16
17 Fuse Key data point is where the fuse crosses 0.01s Clearing times beyond that point are 0.1s and faster Time (Seconds) Minimum Melt Total Clear A Fuse Opens At Some Time Between These Bands Current (Amps) Fuse The point at which the fuse crosses 0.01s varies by fuse and amp rating 9 17X rating up to 600A X rating 601A to 4000A Time (Seconds) Minimum Melt Total Clear Current (Amps) A Fuse Opens At Some Time Between These Bands 17
18 Arc Clearing Time (Sec) Incident Energy Cal/cm V Panelboard Bus 10 ka Short Circuit current 4.35 ka Arcing current rating Arc Clearing Time (Sec) Incident Energy Cal/cm V Panelboard Bus 20 ka Short Circuit current 7.08 ka Arcing current rating 18
19 Arc Clearing Time (Sec) Incident Energy Cal/cm V Panelboard Bus 30 ka Short Circuit current 9.41 ka Arcing current rating Arc Clearing Time (Sec) Incident Energy Cal/cm V Panelboard Bus 40 ka Short Circuit current ka Arcing current rating 19
20 Arc Clearing Time (Sec) Incident Energy Cal/cm V Panelboard Bus 50 ka Short Circuit current ka Arcing current rating Arc Clearing Time (Sec) Incident Energy Cal/cm V Panelboard Bus 80 ka Short Circuit current ka Arcing current rating 20
21 Technologies that reduce clearing times of circuit breakers Arc reduction maintenance switch Zone selective interlocking Differential relaying Arc extinguishers Current limiting fuses Being in the zone depends on technology The following technologies rely on a fault location between two devices Zone selective interlocking Differential relaying Active arc flash mitigation systems Isc Zone of protection Zone of protection assumes no lineside propagation 21
22 Being in the zone depends on technology Isc The following technologies provide reduced clearing times for currents downsream of the device Arc reduction maintenance switch Circuit breaker instantaneous Fuse Zone of The arcing current must be greater than the pickup value protection Zone of protection assumes no lineside propagation Maintenance Reducing Time Adding Barriers Reducing Let s talk about reducing the Current time we permit current to flow and preventing Shock, Arc Flash, Arc Blast incidental contact with energized conductors Adding Distance 22
23 Adding Barriers Adding barriers helps reduce the chance of inadvertent contact which can lead to arc flash events The severity of the shock is affected by three primary factors We can t control the path that current takes through the body Path The path of the current through the body Current that flows through your chest cavity is more likely to cause harm than current that flows through an extremity 23
24 NEC & UL Changes NEC 2017 UL 67 Standard for Safety Panelboards Product standard Impacts new products not those on the shelf NEC 408.3(A) Installation requirement Impacts new installations 408.3(A)Conductors and Busbars on a Switchboard, Switchgear, or Panelboard NEC 2017 Shock protection for personnel Protection from energized components when main is turned off New for NEC 2017 now includes panelboards UL changes impact product made 1/1/2017 and later 24
25 408.3(A)Conductors and Busbars on a Switchboard, Switchgear, or Panelboard Shock protection for personnel Protection from energized components when main is turned off NEC (A)Conductors and Busbars on a Switchboard, Switchgear, or Panelboard NEC
26 408.3(A)Conductors and Busbars on a Switchboard, Switchgear, or Panelboard NEC (A)Conductors and Busbars on a Switchboard, Switchgear, or Panelboard NEC
27 6/4/ (A)Conductors and Busbars on a Switchboard, Switchgear, or Panelboard NEC
28 Finger Safe Solutions Simple Yet Powerful! Finger safe designs preventing accidental contact with energized fuse clips Indicating LED providing clear indication on which fuse has opened. 28
29 Isolate Energized Parts Simple Yet Powerful! Double door line isolation switch Isolate fuses from line side power Visible blades provides clear indication Interlocked to prevent opening energized Visual voltage indicators Simple Yet Powerful! Yet another way to visually see voltage Viewing window visible blades Line and load side indicators 29
30 Through the door Simple Yet Powerful! Panel mount through the door for replacement with the door closed 30
31 Maintenance Reducing Time Adding Barriers Reducing Let s talk about reducing the Current time we permit current to flow and preventing Shock, Arc Flash, Arc Blast incidental contact with energized conductors Adding Distance Reducing the arcing current could increase clearing times while also addressing proper equipment ratings Reducing Current 31
32 The severity of the shock is affected by three primary factors Magnitude Amount of current flowing through the body, influenced both by the magnitude of the driving voltage and the total resistance of the path that current takes though your body Magnitude is determined by the impedance of the circuit Time Length of time the body is in the circuit. Interrupting Rating NEC 110.9: Device interrupting rating MUST be equal to or greater than the maximum available fault current. Demonstrations (Miss Applied OCPD Devices) 10,000 AIR, 600V, Class H Fuse, 50,000A Available 14,000 AIR, 480V, Circuit Breaker, 50,000A Available 32
33 Short Circuit Current Rating (SCCR) Select Current Limiting devices 33
34 Current Limitation Approximately 26,000A Short Circuit: 90 ft 2/0 AWG, 1 Cycle Clearing Time Current Limitation Approximately 26,000A Short Circuit: 90 ft 2/0 AWG, Less than 1/2 Cycle Clearing Time 34
35 Maintenance Reducing Time Adding Barriers Reducing Let s talk about reducing the Current time we permit current to flow and preventing Shock, Arc Flash, Arc Blast incidental contact with energized conductors Adding Distance Place the worker out of harms way through use of technology Adding Distance 35
36 Remote monitoring / control Remote Monitoring: Enables Troubleshooting, Diagnostics without Opening Enclosures Remote monitoring of voltage, current levels reduces exposure to electrical hazards Displays on enclosure exteriors or computer port on exterior or networked Open circuit breakers remotely Remote monitoring / control Remote Monitoring: Enables Troubleshooting, Diagnostics without Opening Enclosures Software applications do more than help save energy and improve power quality. Where equipment is located Power flow for complex lock out tag out procedures Remote opening of switches and other devices 36
37 Robots can be leveraged through umbilical cord use to place the worker outside of the arc flash boundary Small molded case switches and circuit breakers are also addressed by remote operated devices 37
38 Maintenance Reducing Time Adding Barriers Reducing Let s talk about reducing the Current time we permit current to flow and preventing Shock, Arc Flash, Arc Blast incidental contact with energized conductors Adding Distance 38
39 Maintenance Maintenance is important to safety on many fronts including Maintenance Reducing Time Adding Barriers Reducing Let s talk about reducing the Current Maintenance time we permit is current to flow and preventing Shock, Arc Flash, Arc Blast incidental contact with on many energized fronts conductors important to safety including Adding Distance 39
40 Early detection and avoid the flash Prevent Fault Monitor Insulation Integrity Early detection and avoid the flash Prevent Fault Infrared Scanning Windows for LV/MV Assemblies 40
41 System and component health Operations # of fault current interruptions Maintenance schedules Our Safety Journey Continues 41
42 Thank You! Advances in technology to address safety Thomas A. Domitrovich, P.E., LEED AP VP, Technical Sales Eaton 42
Selective Coordination
Circuit Breaker Curves The following curve illustrates a typical thermal magnetic molded case circuit breaker curve with an overload region and an instantaneous trip region (two instantaneous trip settings
More informationDesign Considerations to Enhance Safety and Reliability for Service Entrance Switchboards
Design Considerations to Enhance Safety and Reliability for Service Entrance Switchboards Robert P. Hansen, P.E., PhD GE Specification Engineer Introduction Switchboards are a widely used type of equipment
More informationMOLDED CASE CIRCUIT BREAKER BASICS. David Castor, P.E.
MOLDED CASE CIRCUIT BREAKER BASICS David Castor, P.E. History of MCCBs 1904 - Cutter Manufacturing Co., Philadelphia, produces circuit breakers. They called it the Inverse Time Element breaker, or I-T-E
More informationElectrical Safety and Overcurrent Protection
Electrical Safety and Overcurrent Protection Dave Vallier DSE Bussmann division Contact info: Phone: 586-201-1348 Email: Davemvallier@eaton.com Agenda 1. Electrical hazards overview 2. The role of the
More informationUnderstanding Arc Flash Hazards. White Paper
White Paper By: Kevin J. Lippert Eaton Electrical 170 Industry Drive Pittsburgh, PA 15275 Donald M. Colaberardino Eaton Electrical 170 Industry Drive Pittsburgh, PA 15275 Clive W. Kimblin Eaton Electrical
More informationETAP Implementation of Mersen s Medium Voltage Controllable Fuse to Mitigate Arc Flash Incident Energy
ETAP Implementation of Mersen s Medium Voltage Controllable Fuse to Mitigate Arc Flash Incident Energy ETAP 17 Goodyear, Suite 100 Irvine, CA 92618 White Paper No.001.14-2016 Albert Marroquin, PE Member
More informationReducing. with Current. arc flash note 2. points of interest. Why Use Current Limiting Fuses. By mike lang, Principal field engineer
Reducing Arc Energies with Current Limiting Fuses arc flash note 2 By mike lang, Principal field engineer Why Use Current Limiting Fuses Current limiting fuses can reduce both the magnitude and duration
More informationArc-Flash Mitigation Technologies. Dennis Balickie
Arc-Flash Mitigation Technologies Dennis Balickie The purpose of the session is to provide an overall understanding of the strategic impact of arc-flash. Special focus is on the tactical means to minimize
More informationAre the New 2005 NEC Selective Coordination Requirements Causing an Increase in Arc Flash Energies and Reducing Distribution System Reliability?
Are the New 2005 NEC Selective Coordination Requirements Causing an Increase in Arc Flash Energies and Reducing Distribution System Reliability? The 2005 NEC has new sections that require people transporting
More informationTERMS AND DEFINITIONS
Application Guide Adjustable Alarm Level A setting on a protection relay at which an LED or an output contact operates to activate a visual or audible alarm. Adjustable Delay A setting on a protection
More informationQuik-Spec Electrical Gear
Section Contents Page Quik-Spec Coordination Panel Boards......... 266-267 Quik-Spec Power Module Switches and Panels.. 268-269 Quik-Spec DC Safety Switches.................. 270 Quik-Spec AC Safety Switches..................
More informationService Entrance Methods
Service Section Typical switchboards consist of a service section, also referred to as the main section, and one or more distribution sections. The service section can be fed directly from the utility
More informationBussmann series Quik-Spec Coordination Panelboard
Quik-Spec electrical gear 12 Contents Bussmann series Quik-Spec Coordination Panelboard Section page Description Quik-Spec Coordination Panelboards Up to 400 A 2 600 to 1200 A 3 Quik-Spec elevator disconnects
More informationA. Submit manufacturer's literature and technical data before starting work.
SECTION 16425 SWITCHBOARD PART 1 GENERAL 1.01 SUMMARY A. Related Section: 1. 16450 - Grounding. 1.02 SUBMITTALS A. Submit manufacturer's literature and technical data before starting work. B. Submit Shop
More informationSpecification made simple for selective coordination in a compact size
Quik-Spec family of circuit protection solutions BUSSMANN Specification made simple for selective coordination in a compact size SERIES The Quik-Spec Coordination Panelboard (QSCP) simplifies selective
More informationData Bulletin. Ground-Censor Ground-Fault Protection System Type GC Class 931
Data Bulletin 0931DB0101 July 2001 Cedar Rapids, IA, USA Ground-Censor Ground-Fault Protection System Type GC Class 931 09313063 GT Sensor Shunt Trip of Circuit Interrupter Window Area for Conductors GC
More informationApplication of Sepam Relays for Arc Flash Hazard Reduction at Low Voltage Switchgear
ENGINEERING SERVICES 809 Gleneagles Court, Suite 309; Towson, MD 21286 Application of Sepam Relays for Arc Flash Hazard Reduction at Low Voltage Switchgear Prepared by: Keith Robertson, PE Staff Power
More informationThe University of New South Wales. School of Electrical Engineering and Telecommunications. Industrial and Commercial Power Systems Topic 6
The University of New South Wales School of Electrical Engineering and Telecommunications Industrial and Commercial Power Systems Topic 6 PROTECTIONS 1 FUNCTION OF ELECTRICAL PROTECTION SYSTEMS Problems:
More informationMiniature circuit breaker Application guide
Miniature circuit breaker Application guide Miniature Miniature circuit circuit breakers breakers Application S200 guide Introduction The circuit breaker plays an important role in providing over-current
More informationECET Distribution System Protection. Overcurrent Protection
ECET 4520 Industrial Distribution Systems, Illumination, and the NEC Distribution System Protection Overcurrent Protection One of the most important aspects of distribution system design is system protection.
More informationDesign Standards NEMA
Design Standards Although several organizations are involved in establishing standards for the design, construction, and application of motor control centers, the primary standards are established by UL,
More informationACHIEVING MAXIMUM BENEFITS WITH A FUSE PROTECTED MOTOR CONTROL CENTER
ACHIEVING MAXIMUM BENEFITS WITH A FUSE PROTECTED MOTOR CONTROL CENTER SYSTEM PROTECTION NOTE 2 BY MIKE LANG, PRINCIPAL FIELD ENGINEER INTRODUCTION Increasing concern for arc flash safety has grown to include
More informationDESIGN GUIDELINES LOW VOLTAGE SWITCHGEAR PAGE 1 of 5
DESIGN GUIDELINES LOW VOLTAGE SWITCHGEAR PAGE 1 of 5 1.1. APPLICABLE PUBLICATIONS 1.1.1. Publications listed below (including amendments, addenda, revisions, supplements, and errata), form a part of this
More informationEngineering Dependable Protection
Electrical Distribution System Engineering Dependable Protection Engineering Dependable Protection - Part II "Selective Coordination of Overcurrent Protective Devices" Table of Contents Page Basic Considerations
More informationDIVISION 26 ELECTRICAL SECTION CIRCUIT BREAKERS
DIVISION 26 ELECTRICAL SECTION 26 28 19 PART 1 GENERAL 1.01 DESCRIPTION A. Furnish and install circuit breakers in switchboards, distribution panelboards, and separate enclosures for overcurrent protection
More informationSECTION ENCLOSED SWITCHES AND CIRCUIT BREAKERS
SECTION 26 28 16 ENCLOSED SWITCHES AND PART 1 - GENERAL 1.1 SUMMARY A. Section includes the following individually mounted, enclosed switches and circuit breakers rated 600V AC and less: 1. Fusible switches.
More informationwww. ElectricalPartManuals. com Engineering Dependable Protection
Electrical Distribution System Engineering Dependable Protection Engineering Dependable Protection - Part II "Selective Coordination of Overcurrent Protective Devices" Table of Contents Page Basic Considerations
More informationAppendix C. Interval Every 2 Year. Functional Test Weekly Monthly Quarterly. Semi. Every 3. Engineering Studies
Engineering Studies Coordination Study Every 5 years and in conjunction with electrical system modifications. Short Circuit Study NETA MTS 6.2 Every 5 years and in conjunction with electrical system modifications.
More informationAdvanced Guide To Understanding Assembly Short-Circuit Current Rating WITH ENGINEERING SOLUTIONS AND OVERCURRENT PROTECTION DEVICES TO ENHANCE SCCR
Advanced Guide To Understanding Assembly Short-Circuit Current Rating WITH ENGINEERING SOLUTIONS AND OVERCURRENT PROTECTION DEVICES TO ENHANCE SCCR Assembly Short-Circuit Current Ratings What Is A Short-Circuit
More informationFUSES VERSUS CIRCUIT BREAKERS FOR LOW VOLTAGE APPLICATIONS
FUSES VERSUS CIRCUIT BREAKERS FOR LOW VOLTAGE APPLICATIONS Copyright Material Mersen BY STEVE HANSEN, BYRON JORDAN, MIKE LANG, AND PETER WALSH I. INTRODUCTION This paper discusses the differences between
More informationPower systems Protection course
Al-Balqa Applied University Power systems Protection course Department of Electrical Energy Engineering Dr.Audih 1 Part 3 Protective Devices Fuses & Circuit Breakers 2 Introduction: Fuse Is advice used
More informationQuik-Spec. Section Contents
Section Contents Page Quik-Spec Coordination Panel Boards......... 238-239 Quik-Spec Power Module Switches and Panels.. 240-241 Quik-Spec DC Safety Switches.................. 242 Quik-Spec Solar Combiner
More information2000 Cooper Bussmann, Inc. Page 1 of 9 10/04/00
DO YOU KNOW THE FACTS ABOUT SINGLE-POLE INTERRUPTING RATINGS? YOU MAY BE IN TROUBLE! Typical plant electrical systems use three-phase distribution schemes. As an industry practice, short-circuit calculations
More informationwww. ElectricalPartManuals. com Section 13 Switchgear Low Voltage
Switchgear Low Voltage Introduction...13-1 AKD-10 Low-Voltage Switchgear...13-3 AKD-20 Low-Voltage Switchgear...13-3 Low Voltage Switchgear GE low-voltage switchgear is heavy-duty equipment built to ANSI
More informationSelective Coordination Requirements
Selective Coordination Requirements Background Selective coordination of all upstream overcurrent protective devices in the supplying circuit paths is required by the NEC for a limited number of specific
More informationGE Arc Vault TM Protection System. By Mark Clapper GE Specification Engineer. Introduction. What Variables Contribute To An Arcing fault?
By Mark Clapper GE Specification Engineer Introduction To address the increasing concerns and standards around arcing faults, GE challenged our Global Research Center to develop a new, active method of
More informationArc Fault Circuit Interrupter (AFCI) FACT SHEET
Arc Fault Circuit Interrupter (AFCI) FACT SHEET THE AFCI The AFCI is an arc fault circuit interrupter. AFCIs are newly-developed electrical devices designed to protect against fires caused by arcing faults
More informationSelective Coordination Enforcement:
Selective Coordination Enforcement: Overcurrent Protective Device Basics by Tim Crnko The Basics of Selective Coordination Merely having a higher ampere overcurrent protective device (OCPD) feeding a lower
More informationSimplified Guide To Understanding Short-Circuit Current Rating FIND IT, FIX IT, FORGET IT
Simplified Guide To Understanding Short-Circuit Current Rating FIND IT, FIX IT, FORGET IT Are You Ready For The New SCCR Marking Requirements? What Is A Short-Circuit Current Rating (SCCR)? SCCRs on components
More informationSecondaries. arc flash note Introduction. By Mike Lang, engineer and. Services Supervisor
Reducing Arc Flash Energies on Transformer Secondaries arc flash note 6 By Mike Lang, principal field engineer and Dave Komm, Technical Services Supervisor 1. Introduction Arc flash incident energy calculations
More informationUnderstanding National Electric Code (NEC) tap rules How do they apply to circuit breaker terminals?
White paper Understanding National Electric Code (NEC) tap rules How do they apply to circuit breaker terminals? Darryl Moser, Business Development Manager, DEM Sales, ABB, Electrification Products Division
More informationSection SWITCHBOARDS. Introduction. Part 1 - General. Related Work
Section 16435 - SWITCHBOARDS Introduction Part 1 - General Related Work Section 16070 Seismic Anchorage and Restraint Section 16075 Electrical Identification Section 16080 Power Distribution Acceptance
More informationEE 741 Over-voltage and Overcurrent. Spring 2014
EE 741 Over-voltage and Overcurrent Protection Spring 2014 Causes of Over-voltages Lightning Capacitor switching Faults (where interruption occurs prior to zero current crossing) Accidental contact with
More informationEvaluating Selective Coordination Between Current-Limiting Fuses And Non Current-Limiting Circuit Breakers
Evaluating Selective Coordination Between And Non Current-Limiting Circuit Breakers Tech Topics: Selective Coordination Note 1, Issue 1 Steve Hansen Sr. Field Engineer Robert Lyons Jr. Product Manager
More informationThe Evolution of Arc Fault Circuit Interruption
51 st IEEE HOLM Conference on Electrical Contacts The Evolution of Arc Fault Circuit Interruption John A. Wafer Electrical Group Eaton Corporation 2003 Eaton Corporation. All rights reserved. 2 Residential
More informationProtective Device Coordination ETAP Star
Protective Device Coordination ETAP Star Agenda Concepts & Applications Star Overview Features & Capabilities Protective Device Type TCC Curves STAR Short-circuit PD Sequence of Operation Normalized TCC
More informationCritical Power Switchboards. Selection and Application Guide
Selection and Application Guide Siemens RCIII (rear connected) switchboards utilizing Siemens Type SB Encased Breakers are a perfect solution for your critical power distribution needs. Whether your installation
More informationNow - Up To 400A Mains!
Quik-Spec Family Specification has never been easier or faster for the distribution products you need to achieve selective coordination, and improve electrical system safety and performance Quik-Spec Coordination
More informationThe University of New South Wales. School of Electrical Engineering and Telecommunications. Industrial and Commercial Power Systems Topic 2
The University of New South Wales School of Electrical Engineering and Telecommunications Industrial and Commercial Power Systems Topic 2 SWITCHBOARDS Overview Also called Switchgear and Controlgear Assembly
More informationEvaluating Selective Coordination Between
Evaluating Selective Coordination Between Current-Limiting Fuses And Non Current- Limiting Circuit Breakers selective coordination note 1 By Steve Hansen Sr. Field Engineer and Robert Lyons Jr. Product
More information2016 Photovoltaic Solar System Plan Review List
Building Division 555 Santa Clara Street Vallejo CA 94590 707.648.4374 2016 Photovoltaic Solar System Plan Review List GENERAL PROJECT INFORMATION PLAN CHECK NO DATE JOB ADDRESS CITY ZIP REVIEWED BY PHONE
More information4-Day Power System Analysis, Coordination, System Studies
4-Day Power System Analysis, Coordination, System Studies Contact us Today for a FREE quotation to deliver this course at your company?s location. https://www.electricityforum.com/onsite-training-rfq Our
More informationSelective Coordination
Introduction and Requirements 5 NEC Code: Definitions 240.12 517.17(B) Healthcare 517.26 Healthcare 620.62 Elevators 700.27 Emergency Systems 701.18 Legally Required Standby Systems What Is Selective Coordination?
More informationTransformer Protection
Transformer Protection Course No: E01-006 Credit: 1 PDH Andre LeBleu, P.E. Continuing Education and Development, Inc. 9 Greyridge Farm Court Stony Point, NY 10980 P: (877) 322-5800 F: (877) 322-4774 info@cedengineering.com
More informationUniversity of Houston Master Construction Specifications Insert Project Name
SECTION 26 24 14 600 VOLT DRAWOUT SWITCHGEAR PART 1 - GENERAL 1.01 SECTION INCLUDES: A. Individually mounted rear-accessible low voltage switchgear ANSI rated switchgear and low voltage power circuit breakers
More informationA. This Section includes Low Voltage Switchgear Work, as indicated on the drawings, and as specified herein.
16425 SWITCHBOARD ************************************************************************************************************* SPECIFIER: CSI MasterFormat 2004 number: 26 24 13 An optional keynote to
More informationSUPPLEMENTAL CORRECTION SHEET FOR SOLAR PHOTOVOLTAIC SYSTEMS - ELECTRICAL
SUPPLEMENTAL CORRECTION SHEET FOR SOLAR PHOTOVOLTAIC SYSTEMS - ELECTRICAL This is intended to provide uniform application of the codes by the plan check staff and to help the public apply the codes correctly.
More informationSECTION MICROPROCESSOR TRIP UNITS FOR LV CIRCUIT BREAKERS. This section is organized as indicated below. Select desired Paragraphs.
SECTION 16904 MICROPROCESSOR TRIP UNITS FOR LV CIRCUIT BREAKERS PART 2 PRODUCTS 01 MANUFACTURERS A. B. C. Eaton * * The listing of specific manufacturers above does not imply acceptance of their products
More informationOvercurrent Protection (2014 NEC) (Homestudy)
Overcurrent Protection (2014 NEC) (Homestudy) Oregon Electrical License The key sections of Article 240 will be discussed. Overcurrent protection for panelboards, appliances, motors, motor compressors,
More informationSelective Coordination Compliance Methods for Evaluation and Mitigation
Selective Coordination Compliance Methods for Evaluation and Mitigation Dave Bradley, PE, LEED AP August 8, 2008 New requirements for Selective Coordination became a part of the National Electrical Code
More informationPower Quality and Protective Device Coordination: Problems & Solutions Part 1 Undersizing of Utility Main Service Transformers
Power Quality and Protective Device Coordination: Problems & Solutions Part 1 Undersizing of Main Service s INTRODUCTION by Robert E. Fuhr, P.E. The use of electronic equipment has dramatically increased
More informationIN2 Enclosed Switches and Circuit Breakers
Illinois Math and Science Academy DigitalCommons@IMSA Project Manuals IN2 2015 IN2 Enclosed Switches and Circuit Breakers Illinois Mathematics and Science Academy Follow this and additional works at: http://digitalcommons.imsa.edu/facility_in2_manuals
More informationDevices for Branch Circuits and Feeders
Devices for Branch Circuits and Feeders Branch Circuit Overcurrent Protective Devices and s Fusible Solutions: When selecting fusible overcurrent protective devices, the type of fuse holder or switch is
More information1. Division 26 Section "Elevator Shunt-Trip Fused Disconnect Switches".
SECTION 26 28 16 - PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and other Division 01 Specification Sections,
More informationEnhancing Short Circuit Selective Coordination with Low Voltage Circuit Breakers
Data Bulletin 0100DB0403R5/05 05/2005 Cedar Rapids, Iowa, USA Enhancing Short Coordination with Low Voltage s Retain for future use. INTRODUCTION DEFINITIONS ASSUMPTIONS CIRCUIT BREAKER BASICS The purpose
More informationSECTION LOW VOLTAGE DISTRIBUTION EQUIPMENT
SECTION 16400 LOW VOLTAGE DISTRIBUTION EQUIPMENT A. General 1. The University does not accept Series-Rated equipment for power distribution switchboards, distribution panels and branch circuit panelboards.
More informationFACT SHEET Standard: Electrical Safety
What is a Ground Fault Circuit Interrupter? FACT SHEET The ground-fault circuit interrupter, or GFCI, is a fast-acting circuit breaker designed to shut off electric power in the event of a ground-fault
More informationMark Lyvers LLC / Cooper Bussmann Arc Flash Script Script to accompany PowerPoint on New 2002 NEC Arc Flash Hazard Marking Requirement
Mark Lyvers LLC / Cooper Bussmann Arc Flash Script Script to accompany PowerPoint on 110.16 New 2002 NEC Arc Flash Hazard Marking Requirement Slide 1 Suggestion on How to Use Download both the Mark Lyvers
More information9/16/2010. Chapter , The McGraw-Hill Companies, Inc. TRANSMISSION SYSTEMS. 2010, The McGraw-Hill Companies, Inc.
Chapter 3 TRANSMISSION SYSTEMS 1 Transmitting large amounts of electric energy over long distances is accomplished most efficiently by using high-voltages. Without transformers the widespread distribution
More informationArc flash hazard mitigation
Low Voltage Products Arc flash hazard mitigation Each year more than 2,000 people are treated in burn centers with severe arc flash injuries. ABB designs and manufactures products and solutions to provide
More informationWIRING DESIGN & PROTECTION REQUIREMENTS CHECKLIST
WIRING DESIGN & PROTECTION REQUIREMENTS CHECKLIST Use & Identification of Grounded and Grounding Conductors YES NO N/A Grounded conductors are identifiable and distinguishable from all other conductors.
More informationArc flash solutions catalogue Australia. Safety solutions - Protecting employees and the enterprise
Arc flash solutions catalogue Australia Safety solutions - Protecting employees and the enterprise The risk of an arc flash event is real An arc flash hazard is a proven significant and dangerous threat
More informationZone Selective Interlocking
Application Paper AP02602002EN Supersedes 08/2003 Zone Selective Interlocking Contents Description.... Page What is Zone Selective Interlocking?... 3 What is the purpose of Zone Selective Interlocking?....3
More informationGrounding Of Standby & Emergency Power Systems
July / August 2007 ELECTRICAL LINE 53 Grounding Of Standby & Emergency Power Systems By Andrew Cochran Power continuity is essential in many industrial and commercial installations where a trip out due
More informationBRANCH CIRCUIT PROTECTION FUSED COORDINATION PANELBOARD
BRANCH CIRCUIT PROTECTION FUSED COORDINATION BOARD MERSEN S FUSED COORDINATION BOARD Selective Coordination is required in several locations as defined in the National Electrical Code (NEC). Mersen s Fused
More informationCurrent Ratings. Standards & codes note 1. Introduction. interest. By Steve Hansen Sr. Field Engineer
Achieving Higher Short Circuit Current Ratings for Industrial Control Panels Standards & codes note 1 By Steve Hansen Sr. Field Engineer Introduction Articles 9.1 and. in the National Electrical Code require
More informationOvercurrent Protection According to the 2011 NEC
Overcurrent Protection According to the 2011 NEC Utah Electrical License This course will cover overcurrent protection according to the 2011 NEC. The key sections of Article 240 will be discussed. Overcurrent
More informationWhite Paper. Ground Fault Application Guide. WL Low Voltage Power Circuit Breakers
White Paper Ground Fault Application Guide WL Low Voltage Power Circuit Breakers Table of Contents Introduction 3 Need for ground fault tripping 3 Requirements from industry standards 3 National Electrical
More informationA. Provide a complete system of overcurrent protective devises as indicated on the drawings, and as specified herein.
16475 OVERCURRENT PROTECTIVE DEVICES ************************************************************************************************************* SPECIFIER: CSI MasterFormat 2004 number: 26 28 16 An optional
More informationPage. Circuit-Breakers M4 2 for motor protection. Auxiliary contacts 3 Signalling switch Auxiliary releases
Circuit Breakers M4 Page Circuit-Breakers M4 2 for motor protection Auxiliary contacts 3 Signalling switch Auxiliary releases Insulated 3-pole busbar system 4 Terminal block DIN-rail adapters 5 Busbar
More informationThis is intended to provide uniform application of the codes by the plan check staff and to help the public apply the codes correctly.
SUPPLEMENTAL CORRECTION SHEET FOR SOLAR PHOTOVOLTAIC SYSTEMS (ELEC) This is intended to provide uniform application of the codes by the plan check staff and to help the public apply the codes correctly.
More informationMedium Voltage Metal-Enclosed Switches
Medium Voltage Metal-Enclosed Switches Outdoor Medium Voltage Switch.1 Introduction Product Selection Guide....................................2 Medium Voltage Switch MVS Product Description......................................
More informationOTEC Transfer switch open transition
Specification sheet OTEC Transfer switch open transition 40 1200 amp Description OTEC transfer switches are designed for operation and switching of electrical loads between primary power and Standby generator
More informationAn average of one worker is electrocuted on the job every day There are four main types of electrical injuries:
Electrical Safety Introduction An average of one worker is electrocuted on the job every day There are four main types of electrical injuries: Electrocution (death due to electrical shock) Electrical shock
More informationSolar Power Switchgear & Energy Storage Renewable Energy Systems
7 Solar Power Switchgear & Energy Storage Renewable Energy Systems - Solution Brochure www.apt-power.com 433 N. 36 th Street PROVIDING A COMPREHENSIVE Lafayette, IN 47905 www.apt-power.com 433 APPROACH
More informationFused Coordination Panelboard
Fused Coordination Panelboard SOLUTIONS GUIDE SOLUTIONS GUIDE Branch Circuit Protection Introducing Mersen s Fused Coordination Panelboard Selective Coordination is required in several locations as defined
More informationCONSIDERATIONS FOR THE APPLICATION OF A MV HIGH SPEED GROUNDING SWITCH FOR ARC FLASH MITIGATION OF LV EQUIPMENT
CONSIDERATIONS FOR THE APPLICATION OF A MV HIGH SPEED GROUNDING SWITCH FOR ARC FLASH MITIGATION OF LV EQUIPMENT Raymond Catlett, P.E. Senior Member, IEEE ABB Inc. 8 Driftwood Collinsville, IL 62234 USA
More informationSolar Combiner Solutions
Solar Combiner Solutions Providing combiners and disconnects that offer superior resistance and durability from harsh weather and abusive solar environments Solar Technology Leading the way in Solar Technology
More information9/7/2010. Objectives. Article 90. Introduction NEC Significant Changes. Review significant revisions in the 2011 NEC
2011 NEC Significant Changes Courtesy of NJATC Courtesy of NFPA Presented By: Michael J. Johnston Executive Director of Standards and Safety, NECA Objectives Review significant revisions in the 2011 NEC
More informationUnrestricted. S.Mukhopadhyay
Unrestricted S.Mukhopadhyay 10.09.15 Electrical safety A report says that every year 5500 Indians die due to electric shock and 800 due to electric fire. 12% work place death due to electrocution ELECTRICAL
More informationGrounding Systems. Resistance. Resistance Grounding Systems Contents
Resistance Systems.0-1 Resistance Systems Contents Resistance Systems High Resistance System Medium Voltage...............1-1 High Resistance System Low Voltage..................2-1 Specifications See
More informationFuture Proof Your Arc Flash Assessment
Future Proof Your Arc Flash Assessment 2017 ENERGY CONNECTIONS CONFERENCE TRADE SHOW Presented by: Keith Mullen, P.E. November 9, 2017 Agenda > Utility requirements > Study objectives > Applicable standards
More information1. The term "withstand" means "the unit will remain in place without separation of any parts from the device when subjected to the seismic forces.
SECTION 262816 - ENCLOSED SWITCHES AND CIRCUIT BREAKERS PART 1 - GENERAL 1.1 SUMMARY A. Section Includes: 1. Fusible switches. 2. Nonfusible switches. 3. Receptacle switches. 4. Shunt trip switches. 5.
More informationSelf-protected Combination Starters System PKZ 2-SP
Self-protected Combination Starters System PKZ 2-SP 03/035 PKZ 2/ZM/S-SP motor starters: a higher level of protection and versatility : The PKZ 2/ZM/S-SP is a self-protected starter, the first motor controller
More informationClose-Open (Short-Circuit) Time Results Interpretation
Application Note Close-Open (Short-Circuit) Time Results Interpretation Close-Open (C-O, trip-free) cycles simulate closing on a short circuit. In the actual event, the breaker closes first, then the protection
More informationPublished for electrical engineers by EPOWERENGINEERING and available at The ABC s of Overcurrent Coordination
Analyzer Published for electrical engineers by EPOWERENGINEERING and available at www.epowerengineering.com The ABC s of Overcurrent Coordination Thomas P. Smith, P.E. January 2006 ABOUT THE AUTHOR THOMAS
More informationTransfer switch OTEC and OTECSE open transition
Specification sheet OTEC and OTECSE open transition 125-600 Amp Description OTEC transfer es are designed for operation and ing of electrical loads between primary power and standby generator sets. They
More informationMagnum IEC Low Voltage Air Circuit Breakers
Magnum IEC Low Voltage Air Circuit Breakers Product Focus Up to 690 Vac 42 ka to 100 ka Icu 800 to 6300 Amperes EN 60947-2 A Global Source for Innovative Electrical Power Distribution Solutions Proven
More informationA. Work Included: Provide low voltage switchboard work as shown, scheduled, indicated, and as specified.
SECTION 26 24 13 LOW VOLTAGE SWITCHBOARDS PART 1 - GENERAL 1.1 RELATED DOCUMENTS: A. The Conditions of the Contract and applicable requirements of Divisions 0 and 1 and Section 26 00 01, Electrical General
More informationTable of Contents. Review Answers...84 Final Exam...85 quickstep Online Courses...88
Table of Contents Introduction...2 Need for Circuit Protection...4 Types of Overcurrent Protective Devices...8 Circuit Breaker Design... 11 Types of Circuit Breakers...23 Circuit Breaker Ratings...27 Time-Current
More information