Standards & Preferences Electrical Workshop- Section IX. July 14 th, 2016

Transcription

1 Standards & Preferences Electrical Workshop- Section IX July 14 th, 2016

2 Agenda Welcome Introductions Purpose of Workshop EEM Organizational Structure S&P Section IX Layout Review of Updates Reoccurring Themes Q&A 2

3 Electrical & Energy Management (EEM) Organizational Structure Rick Raike - Chief of Electrical and Energy Management 3

4 Electrical and Energy Management Organizational Chart FY-16 Operations Director Operations Chief of Electrical and Energy Management NS Electrical Manager Electric Shop Instrumentation Manager Electric Shop SS Electrical Manager Electric Shop NS Materials & Ops Coordinator SS Materials & Ops Coordinator NS E & I Supervisor NS E & I Supervisor SS E & I Supervisor Electrical Superintendent CIP Projects SS E & I Supervisor NS E & I (6) NS E & I (7) SS E & I (7) CIP Projects Requiring FTE E & I s (7) SCADA Admin Asst 1 SS E & I (8) SCADA Tech 1 July 2015

5 S&P Section IX Layout Format change from table format to specification format Consist of two sections Pump stations and Treatment Plants Pump Stations consist of 30 items and Treatment Plants consist of 36 items Attachments A~E Grey highlights will indicate latest changes 5

6 Item # Pump Station Item Description Page # 1 Switchgear and MCC 3 2 Emergency Generators 7 3 Energy Efficient Motors 13 4 Sump Pumps 14 5 Level Sensing Systems 14 6 Variable Frequency Drives (VFDs) 15 7 Watt Hour Meter (for MCCs or individual motors) 17 8 PLCs 17 9 Exhaust Fans Lighting Concrete Housekeeping Pads Conduit and Conduit Systems Wire Relays Lockout/Tagout Safety Switches/Receptacles/Plugs Electric Heaters Electrical Drawings Safety Switches (fused or unfused) Transformers Metering Vaults/Pits Pressure Sustaining/Regulating 25 Valves 23 Alarm Systems Flow Meters RTUs Louvers/Dampers Cathodic Protection Junction Boxes and Misc. 28 Enclosures 29 Panel Boards/Control Panels Miscellaneous Electrical 29 Item # 6 Treatment Plant Page # 1 Switchgear 30 2 MCCs 33 3 Emergency Generators 37 4 Energy Efficient Motors 43 5 Sump Pumps 43 6 Level Sensing Systems 43 7 Variable Frequency Drives (VFDs) 46 8 Metering Packages for Switchgear, MCCs or Individual Motors 47 9 PLCs_TP Exhaust Fans Lighting Concrete Housekeeping Pads Conduit and Conduit Systems Wire Relays Lockout/Tagout Safety Switches/Receptacles/Plugs Heaters Electrical Drawings Safety Switches (fused or unfused) Transformers Metering Vaults/Pits Pressure Sustaining/Regulating Valves Flow Meters RTUs Louvers/Dampers Transfer Switches On-Line Vibration Monitors Panel Meters Analyzers/Monitors Miscellaneous Instrumentation Miscellaneous Electrical Heating and Cooling Junction/Pull Boxes and 66 Miscellaneous Enclosures 35 Panel Boards/Control Panels Distributive Control System (DCS) 67

7 Table Format- S&P Electrical Workshop 2016 PUMP STATION Electrical and Instrumentation Requirements Electrical Equipment/Item Manufacturer Specific Criteria Day Tanks Pryco Tramont - UL Listed double wall - Provide with Oberndorfer bronze gear type pump. Pumps with rubber or nitrile impellers will not be accepted - Provide with a low level alarm and light - Size for 2 hour minimum running time - Provide a fuel level indicator on the day tank - Provide a 2 pump system. Each pump shall be capable of pumping 100% fuel oil throughout the entire system. - Provide Not in Auto lamp or other warning device - Use momentary switch for tank fill/test 7

8 Specification format- S&P Electrical Workshop 2016 Day Tanks Manufacturers Pryco Tramont Specific Criteria UL Listed double wall Provide with Oberndorfer bronze gear type pump. All pumps must be mounted on Day Tank. Pumps with rubber or nitrile impellers will not be accepted Provide with a low level alarm and light Size for 2 hour minimum running time Provide a fuel level indicator on the day tank Provide a 2 pump system. Each pump shall be capable of pumping 100% fuel oil throughout the entire system. Provide Not in Auto lamp or other warning device Use momentary switch for tank fill/test 8

9 Day Tank - S&P Electrical Workshop 2016 Day Tanks 1. All pumps must be mounted on the Day Tanks. In ground pumps not preferred, but may used in site specific applications. See pg. IX-11 9

10 E- Stops -Mfr: Pilla -Model: GS120 See pg. IX-40 10

11 Review of Updates (Part 1) 11

12 Generator Section - S&P Electrical Workshop 2016 Review of Updates (Part 1) Generator Section for Pump Stations and Treatment Plants. 1. Size air, fuel, and oil filters to provide a minimum 250 hours before servicing (a minimum of 100 hours was previously stated). See pg. IX-9 & Removed - Mfr. American Battery Charger. See pg. IX-10 & Added - SENS Battery Charger. See pg. IX- 10 & 42 12

13 Generator Section - S&P Electrical Workshop Added - Size radiator to prevent overheating in the most severe conditions; changed from 110 F to 122 F. See pg. IX Added - 4D starting batteries are not acceptable (Use 8D only). See pg. IX-11 & 42 13

14 Variable Frequency Drives (VFD s) 1. Change the name from Power Logix to Power Flex Series (Allen Bradley) See pg. IX- 16 & 49 14

15 Rubber Matting 1. What is considered OSHA approved matting? Electrical rated matting that meets the Type II ASTM D178 Standard. See pg. IX-10, 35, & 39 15

16 Conduits 1. Painted red in pump station per request of the owner (Does not apply for PVC Coated Rigid). Refer to Section X Coatings manual page 148. See pg. IX-21 16

17 MCC/Switchgear Fasteners 1. Provide extra fasteners when ordering gear (spare parts). See pg. IX-33 and IX-36 17

18 Analyzers/Monitors 1. Added E&H probe for Incinerator scrubber water (process ph); Specific applications at Treatment Plants See pg. IX-67 18

19 Level Sensing Systems Bubbler 1. Remove Bell & Gossett as Mfr. 2. Add model 3HBB-10-M300 AX (Dual Head Air Compressor) or equal See pg. IX Separate circuit for each compressor (Panel schedule) 19

20 Voltage Test Points Mfr. Safeside See pg. IX-7 and IX-39 20

21 DIN Rail 1. Add Panduit Panduct DIN Rail Wiring Duct See pg. IX-5 21

22 Review of Updates (Part 2) 22

23 Review of Updates (Part 2) Pump Station section 16- provide one weatherproof (WP/Watertight) receptacle with lockable cover on the exterior wall of the pump station on a separate circuit; separately switched -> must not be hot at all times. See pg. IX-25 Provide high level float ball for alarms See pg. IX-15 Provide Intrinsically safe barriers See pg. IX

24 Add Remote Switch Operator to open/close main circuit breaker outside of the arc flash boundary. See pg. IX-32 24

25 Add ARMS Arms Reduction Maintenance Switch or Equal; When activated downstream incident energy levels will be reduced. See pg. IX-32 25

26 Add LSI or LSIG (>=1000A) Electronic Trip Units See pg. IX-33 26

27 Add Short Circuit, Coordination, and Arc Flash requirements to specifications (Arc Flash calculations must be performed for both Utility bus and Generator bus); A label must be added to the generator breaker. See pg. IX-31 27

28 Push-buttons, selector switches, etc. must be NEMA rated only (Some Mfr. Have both NEMA/IEC ratings on components). See pg. IX-34 & 37 28

29 ETM Add Mfr. Crompton and ENB Elapsed Time Meters; Yokogawa UL certification in question. See pg. IX-65 29

30 Surge Protection Devices Remove SPD Type IC4/IC6 Surge Protectors - Don t use DC powered surge protection on field devices (4~20mA). - Don t use AC powered surge protection for field devices. - All SPD should be installed at the incoming power section of the gear. 30

31 Splicing 1. No splicing allowed on HRSD projects without approval from Engineer/Owner. 2. No splicing in man-holes 3. If granted approval, splicing must be perform by certified splicer. 4. May require above ground installation. 31

32 Variable Frequency Drives- New circuit diagram 32

33 Tegam Windows J. Matt Ferguson DRISCOLL AUTOMATIC 918/ Main 918/ Fax 918/ Cell P.O. Box Tulsa, OK

34 Tegam Windows- AW1012 Can be eliminated if installed in condition spaced. 34

35 Conduit schedule vs. Circuit Method Some consultants method of design does not use conduit schedules so individual conduit tag numbers do not exist. The one line diagrams use circuit numbers. For power circuits (except for lighting and receptacles circuits) a conduit is dedicated to that circuit. For control and instrumentation circuits; They often have multiple circuits in a common conduit. 35

36 Labeling Method (phenolic labels) White lettering on Black background. See pg. IX-30, 33, & 36 36

37 Actuators EIM actuators- verify use of proper voltage 120 vs. 480V -Use proper control boards based upon required voltage. 37

38 Polaris Style Connectors not preferred ; T leads to motor (rarely used); Prefer lugs 38

39 Pump Station ATS Push to test function; manually initiate 2 hour test to start generator and assume load. After two hours the system automatically returns to utility source if available. Note: This is not an exercise function. Remove Mfrs. Cummins and SQD; Specify Eaton or ASCO. See pg. IX-11 39

40 Locate HOA switch at drives for variable speed applications Locate HOA switch at pump for constant speed applications. 40

41 Reoccurring Themes 41

42 Load Bank Test Boxes 1. Fabrication UL Shop Harper Sheet Metal Richmond VA (804)

43 Reoccurring Themes o Load bank test boxes Eaton and other Mfrs. have similar connection boxes; However HRSD standardized the use of Leviton Connectors, due to Operation s wire spool trailers having Leviton mating connectors. o Other products utilize Hubbell connectors. The Mfrs. would like for HRSD to use Hubbell connectors to prevent the modification of their UL listing. 43

44 o Shop Drawing Submittal/Approval Process o HRSD Electrical Staff would desire access to a file storage area, to review submittals in parallel with consultants, in an effort to streamline the overall process. o Secure As-Builts/ Record Drawings before closeout of Project. o Functionals and P&ID s o Interposing Relays o DCU Power Supplies/Isolation transformer o Arc Flash Mitigation (> 40 cal/cm2) Design, SC, Coordination, AF analysis, and labeling. 44

45 o Arc Flash Breaker/Relay settings for contractors. o Variable Frequency Drives (VFD s) o Long term maintenance plan at substantial completion. o Rice Rule o MOPO o Generator/paralleling gear (block load or soft load) 45

46 o 100 ms closed transition test and 225 ms breaker timing test o NFPA 820 o Energy Conservation 46

47 o Dominion Virginia Power Interconnection Agreement 47

48 New Electrical Services 1. Site Plan 2. Load Letter 3. Power Riser 4. Sequence of Operation 5. Access Facility Charges Right size equipment 48

49 49

50 50

51 Lighting Quick strike preferred for metal halide See pg. IX-20 and IX-52 LED preferred 51

52 Wire Stranded wire only (No solid wire allowed). Sometimes solid wire for smaller No. gauge wire will be specified. See pg. IX-23 and IX

53 Some other beneficial practices: Separate Electrical Meetings Checklist for QA/QC Involve HRSD with Electrical Inspections Verify loop checks 53

54 Turnover file, cables, hardware, and software to HRSD. HRSD needs ownership to any processor based controls and/or equipment. No proprietary programs that would not grant HRSD access to modify and/or troubleshoot. 54

55 o Scheduling of Training for Equipment or New systems. o Generator load bank test must witnessed by HRSD EEM and Automotive Representative. o Excavation around live energized lines. Hand dig or pot hole to locate potential utility conflicts. 55