Exhibit B - Oregongov- crusher rock in substation ,substations, interconnection facilities and workshops or O&M buildings Washed crushed rock would be used on substation yards to reduce electrocution riskMeasurement of substation rock resistivity - ResearchGateABSTRACT The authors present a method of measuring the wet resistivity of rock used in covering substations and derive an approximate formula relating this



  • Independence Power & Light Substations C & K Capacitor - Agenda

    BID SUBSTATION C $201,44586 $165,81200 BID SUBSTATION K $231,74262 $201,06100 BID SECTION C1- 21 Substation Crushed Rock Surface 1 ea

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  • Substation Grounding 101

    substation and transmission line grounding systems Exercise Substation Grounding Design Steps Soil Testing crushed rock on voltage thresholds

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  • NS222 Major Substation Earthing Layout Design - Ausgrid

    9 Nov 2011 earthing layout for major substations It also specifies procedures and acceptable Substation Layout Design Process Crushed Rock

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  • Eng-Tips: Electric power & transmission & distribution

    Our substation rock is sized 3/4 to 1-1/2 (years ago it was larger) and some of the heavier We use fractured rock rather than crushed rock

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  • Download Product Brochure - Norelco

    developed our outdoor transformer substations into continuous product various crushed stone coatings and rock, with possible options oinatural white, red

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  • Touch and Step Voltage Measurements on Field Installed Ground

    29 Oct 2010 commonly used surfacing material for substation yards, while Three different gravel areas consisting of 1-½" Crusher larger sized rocks

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  • Aggregate List | JL'S Excavating Ltd

    3/4" To 1-1/2" Crushed Drain Rock - 12 Tons Per Cubic Yard 14 1/2" - 3" Drain Rock Which can be used for substations, power grids and other related sit

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  • Design of Grounding System for High Voltage Substations

    The main functions of grounding system of substation include: the first one is the Thickness of crushed rock surfacing (hs) 0075 m Total Fault Current (3I0 )

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  • Chapter-3-Project-descriptionpdf - Energex

    substation sites and powerline corridors are illustrated in Figure 13 Substation platform surface runoff will filter though the crushed rock surface layer and

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  • SECTION - VI PARTICULAR SPECIFICATIONS SUBSTATIONS

    SUBSTATIONS CIVIL WORKS Earthworks for sub-station platform The stone shall be hard and durable crushed rock with a maximum particle size of

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  • Assessment of uncertainties in substation grounding system using

    Earlier, design and implementation of substation earthing systems had been So, the soil resistivity, crushed rock wet resistivity are always varying and it is not

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  • Sub Station II menu - Rock Hill, SC 29732 - (803) 329-0073

    Restaurant menu, map for Sub Station II located in 29732, Rock Hill SC, 403 by request only: mayonaisse, mustard, crushed red pepper, jalapeno peppers,

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  • Section 3 Specification for Embedded Generation MV Substations

    2 Aug 2013 Civil Specification for Embedded Generation MV Substation, Part 2 of 2 Granular material Type B, Clause 804* shall be crushed rock other

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  • Appendix D-Duke Energy Substation Access Road Specifications

    9 Jun 2008 page 1 of 7 Substation Access Road Specification Maximum Grade: 8% for Crusher Run Rock and 10% for Heavy Duty Asphalt Maximum

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  • Proposed Tatogga Substation Crown Land Tenure Application

    MANAGEMENT PLAN FOR PROPOSED TATOGGA SUBSTATION July 26, 2013 Report No crushed rock surfacing It is expected that site preparation

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  • Electric Utility Application and Reference Guide - Enertec Power

    Crushed Rock GT Substation Earthing/Grounding and Lightning Protection The conceptual design of a ground grid at a substation is summarized by the points

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  • Transpower Switchyard Aggregate | Stevenson Resources

    The purpose of using Stevenson crushed rock aggregate in insulating surface layers in substation switchyards is to reduce the body currents that could flow

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  • APPENDIX III CODE OF PRACTICE FOR EARTHING OF POWER

    iv) IEEE Guide for safety in a c substation grounding At the traction substations and switching stations, a surface layer of crushed rock shall be provided to a

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  • Safety Design Planning of Ground Grid for Outdoor Substations in

    An effective solution to im- prove the performance of the substation grounding is Fig15: Touch Voltage of Surface with Crushed Rock of 2,000 Ωm Resistivity

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  • Earthing Mat Design For Substation | EEP

    Earthing Mat Design For Substation Spreadsheet (photo by Resistance of surface Material (Crushed Rock ); Thickness of Surface Material (Crushed Rock)

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  • Step & Touch Potential - E&S Grounding Solutions

    When a fault occurs at a tower or substation, the current will enter the earth Often a layer of crushed rock is added to a tower or substation to provide a layer of

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  • electrical safety

    At the substations, voltage is reduced and electricity is sent on distribution lines to Ground grid (covered with 6" crushed rock) is under entire substation

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