ELECTRICAL SERVICE PANEL REPORT April 24, 2012 Burdette Engineering, Inc. 102 Pilgrim Road Greenville, SC 29607-5702 Ph.864 / 297-8717 FAX 864 / 297-8719
BURDETTE ENGINEERING, INC. ELECTRICAL SERVICE PANEL REPORT BEI PROJECT 12005 PURPOSE OF VISIT OBSERVATIONS RECOMMENDATIONS APPENDIX A LOAD CALCULATIONS APPENDIX B SERVICE ENTRANCE ISSUES APPENDIX C OBSERVATION RECORDS APPENDIX D PICTURES APPENDIX E LOADCENTER REPLACEMENT
PURPOSE Burdette Engineering Inc. was contacted by Mr. Frank Grimball of Mullen Wylie LLC on behalf of the Homeowners Association of Long Grove at Seaside Farms. The request was to review the power installations for the units of the complex which had been overheating and melting some breakers. Burdette Engineering Inc. was provided with a set of 11 x17 copies of the original drawings. The drawings appear to be dated 1998, which indicates construction in the 1999-2000 time frame.
OBSERVATIONS On January 12, 2012, Don Burdette, P.E. of Burdette Engineering, Inc. reviewed apartments with John Vincent of CBR contractors. Loadcenter covers in these apartments were removed and existing conditions observed. Unit loadcenters 127, 321, 813, 815, 914, 925, 1511 and 1628 were reviewed. Units were selected by the Homeowner s Association. A. Panel Overheating Observations In apartments 1511 and 815, the panel bus stab and the stab sockets of certain breakers have overheated, causing damage to the bus stab and the circuit breaker sockets, melting some insulation material on the bus and some of the case of the circuit breaker. It appeared that adjacent 2-pole and 1-pole breakers were affected which had been removed, replaced and relocated to another position in the panel. No visible damage was observed in 127, 321, 813, 914, 925, or 1628, however, unit 914 had its loadcenter replaced previously. Loadcenters for 512 and 1411 had also been previously replaced. The enclosure with interior for 512 and the bus/breaker interior assembly for 1411 were provided to BEI for inspection and exhibited similar overheating as the loadcenters of 815 and 1511. The loadcenters reviewed were primarily as manufactured by Thomas and Betts. Units 127 and 321 contained loadcenters not manufactured by Thomas and Betts and did not exhibit the issues of overheating. Thomas and Betts, a longtime manufacturer of electrical equipment, primarily connectors, entered the residential load center market in the mid 1990 s and apparently discontinued the line in approximately 2002. It is not known how many of the units have T&B loadcenters installed. Although the conditions varied between some of the panels, some of the plastic ground bus mounting brackets were cracked, leaving one end of the bus unsupported. Paint overspray was observed on some of the panel interiors bus and breakers, indicating those panels were left open during painting. Some of the unit incoming feeders had not been marked with phasing tape. It could not be determined by observation what the exact cause of the overheating is. Possible considerations were: 1. Undersizing of panels: In Appendix A, the panel loads were analyzed from the design documents. It appears that the panels are properly sized when utilizing NEC 220-30 Optional Calculation for Dwelling Unit Load Analysis. Undersizing of panels should not be the issue in the overheating. 2. Oversizing of HVAC replacement condenser units: Where replacements occurred, these may have had larger loads imposed on the breaker and bus. It could not be determined which units had been replaced. The two AC units we could match with units had nameplate ratings that were within the breaker ratings in the panel, which would tend to indicate that load was not the issue. Further, a properly operating breaker subjected to an overload for more than its rating should trip the breaker after some time and before damage to the breaker occurred, according to the trip curve for that breaker.
The breakers may have faulty trip mechanisms, but would have to be tested to determine for sure. All breakers would need to be tested to determine proper operation of each device in order to eliminate from consideration. 3. Defect in the loadcenter bus-stab to circuit breaker stab connection: This would allow heat to build up due to improper seating of the connection. This heat buildup could cause melting of the insulation and circuit breaker cases along with the damages observed to the bus stab and breaker stab sockets. This seemed to be where the damage did occur. B. Main Circuit Breakers Location & Protection of Service Entrance Cable While on site, the service entrances to the complex units were observed. Referring to Appendix B, Figure 1, the original design drawings had a meter center which included a main fuse on the service utility feed and a separate meter and service disconnect switch for each apartment. The main fuse would allow for disconnecting the entire building from the utility service; the individual service disconnects would allow each unit to be disconnected independently and would protect the service entrance feeder from that point to the interior. The meter center specified was not installed per plans. At the site, at Building 1,the service entry cable from the utility terminates in a wireway to feed individual meters for each apartment and is run unprotected into the building, which is a code violation. The service disconnect was relocated to each individual panel with a 2-pole 100amp or 2-pole 125amp breaker mounted on the Main Lug bus and serving as the disconnect and breaker. Additionally, there is not a grounding run to the panel from the meter, leaving the neutral bonding at the utility transformer as the only effective grounded conductor. This neutral bonding was not visually inspected. The National Electric Code requires the grounding conductor to be bonded to the neutral and to ground electrodes. The grounding conductor is not present at the installation.
RECOMMENDATIONS A. Panel Overheating It is not known how long this problem had exhibited itself prior to our inspection. It is also not known at this time exactly how many of these loadcenters have been previously damaged and/or replaced. Some of the loadcenters may have simply had the burnt breakers replaced and repositioned by the Homeowners. It is known that these issues have occurred in at least 5 of the units, possibly more. Testing the remaining panels by subjecting each breaker to trip testing may indicate problems, but would be costly, and may not yield definitive indications for predicting the long term safe operation of the assembly. In short there is not a reliable way to predict or similar failures in the remaining panels. It is our opinion that the Thomas and Betts loadcenters need to be replaced. There are two options: 1. Replace the interiors and provide new breakers- The interior includes the breakers and the bus assembly. The existing loadcenter enclosure would remain; existing wiring could then be reconnected to the new breakers. A material cost only for this interior replacement has been obtained from Cutler Hammer (Eaton Corp) with the caveat that the loadcenter as a whole would not be UL listed as an assembly. While all the parts are individually UL listed, the assembly could not have been tested for obvious reasons. The local authority having jurisdiction (AHJ) would have to rule on this approach. We believe it would be approved as a replacement method. 2. Replace entire loadcenter- If Option 1 above is not acceptable to the AHJ, the entire loadcenter would need to be replaced with a reputable manufacturer s unit. While this may have comparable material costs as above, the labor to pull the cables out and remove the existing enclosure and reinstall cable into the loadcenter would be increased; as well as the additional cost to repair the surrounding wallboard. Once the method is verified and approved by the AHJ, pricing on a per unit basis could be solicited from several electrical contractors to replace the panels. The replacement would be limited to the T&B Loadcenters only. B. Main Circuit Breakers Location & Protection of Service Entrance Cable In order to provide a code compliant installation, each building should have a main fused switch installed per the original plans. In addition, each unit should have a fused service disconnect located on the load side of the meter and properly sized ground installed in the loadcenter feeder circuit along with the two (2) phase conductors and neutral. The neutral to ground bonding should take place in the new service disconnect and be connected to available ground electrodes per NEC Article 250, Ref. Appendix B, SKE-3. Each building service installation should be reviewed, designed and coordinated with the Power Utility by a Professional Engineer for approval by the AHJ prior to proceeding. END OF THE REPORT
APPENDIX A LOAD CALCULATIONS A-1: LOAD ANALYSIS FROM ORIGINAL PLANS A-2: PANEL SCHEDULE A2 FROM ORIGINAL PLANS A-3: PANEL SCHEDULE B1/B2 FROM ORIGINAL PLANS A-4: PANEL SCHEDULE C1 FROM ORIGINAL PLANS A-5: NEW LOAD ANALYSIS PER NEC 220-10 A-6: NEW LOAD ANALYSIS PER NEC 220-30, OPTIONAL CALCULATIONS
APPENDIX A 4/24/2012 LOAD ANALYSIS FROM ORIGINAL PLANS A-1
APPENDIX A PANEL SCHEDULES FROM ORIGINAL PLANS A-2
APPENDIX A PANEL SCHEDULES 'B1/B2' FROM ORIGINAL PLANS A-3
APPENDIX A PANEL SCHEDULE 'C1' FROM ORIGINAL PLANS A-4
APPENDIX A Dwelling Unit Load Analysis NEC 220 10 Long Gove at Seaside Farms Charleston, SC 240/120v, 1Φ, 3W Apartment Type: A2 B1 B2 C1 Designation Apartment Square footage: 768 841 1034 1180 SF General Lighting & Receptacles, Small Appliance & Laundry Lighting and Receptacle = 3W/SF 2304 2523 3102 3540 VA Small Appliance 3,000 3,000 3,000 3,000 VA Laundry (Washer) 1,500 1,500 1,500 1,500 VA Total = 3KVA + 35% of remaining VA 4,331 4,408 4,611 4,764 VA Appliance Loads Water Heater 4,500 4,500 5,500 5,500 VA Disposal 1,176 1,176 1,176 1,176 VA Dishwasher 1,200 1,200 1,200 1,200 VA Rangehood 100 100 100 100 VA Total = 75% demand 5,232 5,232 5,982 5,982 VA Dryer Dryer 5,000 5,000 5,000 5,000 VA Total = 100% demand 5,000 5,000 5,000 5,000 VA Electric Ranges & Other Cooking Appliances Range 9,800 9,800 9,800 9,800 VA Total = 100% demand 9,800 9,800 9,800 9,800 VA Motors (HVAC Equipment) AHU 155 311 311 311 VA Condenser 3,600 3,840 3,840 5,520 VA Total= 100% demand 3,755 4,151 4,151 5,831 VA Total of all Steps 28,118 28,591 29,544 31,377 VA Design Amps 117 119 123 131 A Panel Bus Amps 125 125 125 150 A Service Conductor Size Table 310 15(b)(6) #2 #2 #2 #1 AWG NEW LOAD ANALYSIS PER NEC 220-10 A-5
APPENDIX A Dwelling Unit Load Analysis NEC 220 30 Optional Calculation Method Long Gove at Seaside Farms Charleston, SC 240/120v, 1Φ, 3W Apartment Type: A2 B1 B2 C1 Designation Apartment Square footage: 768 841 1034 1180 SF General Loads Lighting and Receptacle = 3W/SF 2304 2523 3102 3540 VA Small Appliance = 1500VA x 2 3,000 3,000 3,000 3,000 VA Laundry (Washer) 1,500 1,500 1,500 1,500 VA Water Heater 4,500 4,500 5,500 5,500 VA Disposal 1,176 1,176 1,176 1,176 VA Dishwasher 1,200 1,200 1,200 1,200 VA Rangehood 100 100 100 100 VA Refrigerator 1,200 1,200 1,200 1,200 VA Dryer 5,000 5,000 5,000 5,000 VA Range 9,800 9,800 9,800 9,800 VA Total = 29,780 29,999 31,578 32,016 VA Total = 10KVA + 40% of remaining 17,912 18,000 18,631 18,806 VA Heating and Air Conditioning Load AHU 155 311 311 311 VA Condenser 3,600 3,840 3,840 5,520 VA Total= 100% of Nameplate Data AHU & Con. 3,755 4,151 4,151 5,831 VA Total of all Steps 21,667 22,151 22,782 24,637 VA Design Amps 90 92 95 103 A Panel Bus Amps 100 100 100 125 A Conductor Size Table 310 15(b)(6) #4 #4 #4 #2 AWG NEW LOAD ANALYSIS PER NEC 220-30, OPTIONAL CALCULATIONS A-6
APPENDIX B SERVICE ENTRANCE ISSUES B-1: RISER DIAGRAM FROM ORIGINAL PLAN B-2: RISER DIAGRAM NOTES FROM ORIGINAL PLAN B-3: NEC 1999 REFERENCE PAGE B-4: NEC FIGURE 230.2H MAXIMUM NUMBER OF LOADS PER SERVICE B-5: NEC 250-24(A)(1) SERVICE GROUNDING REQUIREMENTS B-6: NEC FIGURE 250.8- SERVICE GROUNDING DIAGRAM B-7: POWER RISER PER DESIGN DOCUMENTS B-8: POWER RISER AS CONSTRUCTED B-9: POWER RISER RECOMMENDED CORRECTIONS
APPENDIX B 4/24/2012 RISER DIAGRAM FROM ORIGINAL PLAN B-1
APPENDIX B RISER DIAGRAM NOTES FROM B-2
APPENDIX B Note: Original construction drawing referenced 1996 National Electric Code. Referenced provisions did not change between the two Editions. NEC 1999 REFERENCE PAGE B-3
APPENDIX B NEC FIGURE 230.2H- MAXIMUM NUMBER OF LOADS PER SERVICE B-4
APPENDIX B NEC 250-24(A)(1)- SERVICE GROUNDING REQUIREMENTS B-5
APPENDIX B NEC FIGURE 250.8- SERVICE GROUNDING DIAGRAM B-6
APPENDIX B
APPENDIX B
APPENDIX B
APPENDIX C OBSERVATION RECORDS C-1: EXISTING PANEL SCHEDULES APARTMENT # 127, 321 C-2: EXISTING PANEL SCHEDULES APARTMENT # 813, 815 C-3: EXISTING PANEL SCHEDULES APARTMENT # 914, 925 C-4: EXISTING PANEL SCHEDULES APARTMENT # 1511, 1628 C-5: INDIVIDUAL UNIT NOTES C-6: INDIVIDUAL UNIT NOTES
APPENDIX C 04/24/2012 PANEL 127 CABINET RECESSED MOUNTED TYPE CUTLER HAMMER VOLTAGE 240/120V, 1ф, 3W FEEDER MAINS 100A MCB DEVICE BRANCH CIRCUIT PHASE LOAD BRANCH CIRCUIT DEVICE S P MPS RIP AM T PO OLE S NO OTE ES DESIGNATION (VOLT-AMPS) DESIGNATION No. φa φb No. NO OTE ES PO OLE S S P MPS RIP AM T UNUSABLE SPACE MAIN CIRCUIT BREAKER 2 100 1 2 40 2 RANGE HEAT 2 60 3 4 5 6 30 2 AC DRYER 2 30 7 8 20 1 HALL BATHROOM GFI 9 10 WATER HEATER 20 1 MASTER BATHROOM GFI 11 12 MC CB 2 30 15 1 SMOKE DETECTOR 13 14 DISHWASHER 1 20 15 1 DINING ROOM 15 16 KITCHEN GFI 1 20 15 1 MASTER BEDROOM 17 18 DISPOSER 1 20 15 1 LIVING ROOM 19 20 WASHER 1 20 15 1 BEDROOM 21 22 KITCHEN GFI SINK 1 20 15 1 23 24 REFRIGERATOR 1 20 INTEGRATED EQUIPMENT RATING: 10,000 AIC KVA TOTAL 0.0 0.0 PANELBOARD KVA LOAD TOTAL: 0.0 PANEL 321 CABINET RECESSED MOUNTED TYPE T & B TB VOLTAGE 240/120V, 1ф, 3W FEEDER MAINS 125A MCB DEVICE BRANCH CIRCUIT PHASE LOAD BRANCH CIRCUIT DEVICE TRIP MPS S P A T PO OLE ES NO OTE ES DESIGNATION (VOLT-AMPS) DESIGNATION No. φa φb No. NO OTE ES PO OLE ES TRIP MPS S P A T 125 2 MAIN CIRCUIT BREAKER MC CB UNUSABLE SPACE 1 2 30 2 WATER HEATER FURNACE 2 60 3 4 5 6 30 2 DRYER RANGE 2 50 7 8 10 A/C 2 30 12 20 1 9 20 1 11 20 1 13 14 1 15 20 1 15 16 1 15 20 1 17 18 1 15 20 1 19 20 1 15 20 1 21 22 SPACE SPACE 23 24 SPACE INTEGRATED EQUIPMENT RATING 10 000 AIC KVA TOTAL 00 00 PANELBOARD KVA LOAD TOTAL 00 RATING: 10,000 AIC KVA TOTAL 0.0 0.0 PANELBOARD KVA LOAD TOTAL: 0.0 EXISTING PANEL SCHEDULES APARTMENT # 127, 321 C-1
APPENDIX C LONG GROVE @ SEASIDE FARMS PANEL 813 CABINET RECESSED MOUNTED TYPE T&B TB VOLTAGE 240/120V, 1ф, 3W FEEDER MAINS 125A MCB DEVICE BRANCH CIRCUIT PHASE LOAD BRANCH CIRCUIT DEVICE A AMP PS TR IP P POL LES N NOT TES DESIGNATION (VOLT-AMPS) DESIGNATION No. φa φb No. N NOT TES P POL LES A AMP PS TR IP 125 2 MAIN CIRCUIT BREAKER MCB UNUSABLE SPACE 40 2 RANGE 1 2 3 4 AHU 2 60 30 2 DRYER 5 6 7 8 CONDENSING UNIT 2 30 30 2 WATER HEATER 9 10 REFRIGERATOR 1 20 11 12 1 20 15 1 RANGE HOOD 13 14 BATHROOM GFI 1 20 15 1 LIGHTING & RECEPTACLES 15 16 SMALL APPLIANCE 1 20 15 1 LIGHTING & RECEPTACLES 17 18 BATHROOM GFI 1 20 15 1 SECURITY 19 20 SMALL APPLIANCE 1 20 20 1 DISHWASHER 21 22 1 20 INTEGRATED EQUIPMENT RATING: 10,000 AIC KVA TOTAL 0.0 0.0 PANELBOARD KVA LOAD TOTAL: 0.0 PANEL 815 CABINET RECESSED MOUNTED TYPE T&BT & B TB VOLTAGE 240/120V, 1ф, 3W FEEDER MAINS 125A MCB DEVICE BRANCH CIRCUIT PHASE LOAD BRANCH CIRCUIT DEVICE PS RIP AM TR POL LES NOT TES S DESIGNATION (VOLT-AMPS) DESIGNATION No. φa φb No. NOT TES S POL LES PS RIP AM TR 125 2 MAIN CIRCUIT BREAKER MCB M B UNUSABLE SPACE 40 2 RANGE 1 2 3 4 CONDENSING UNIT 2 30 30 2 DRYER 5 6 7 8 WATER HEATER 2 30 60 2 AHU 9 10 DISHWASHER 1 20 11 12 WASHER 1 20 20 1 LIGHTING & RECEPTACLES 13 14 1 20 20 1 RANGE HOOD 15 16 BLANK SPACE 1 20 20 1 LIGHTING & RECEPTACLES 17 18 SMALL APPLIANCE 1 20 15 1 SECURITYS 199 200 BATHROOM GFIG 1 20 15 1 BATHROOM GFI 21 22 SMALL APPLIANCE 1 20 20 1 233 24 1 20 INTEGRATED EQUIPMENT RATING: G 10,000 AICC KVA TOTAL 0.0 00 0.0 00 PANELBOARD KVA LOAD TOTAL: 0.0 00 EXISTING PANEL SCHEDULES APARTMENT # 813, 815 C-2
APPENDIX C PANEL 914 CABINET RECESSED MOUNTED TYPE T & B TB VOLTAGE 240/120V, 1ф, 3W FEEDER MAINS 100A MCB DEVICE BRANCH CIRCUIT PHASE LOAD BRANCH CIRCUIT DEVICE AMPS TRIP POLES NOTES DESIGNATION (VOLT-AMPS) DESIGNATION No. φa φb No. NOTES POLES AMPS TRIP 100 2 MAIN CIRCUIT BREAKER MCB UNUSABLE SPACE 1 2 40 2 2 60 3 4 5 6 30 2 2 30 7 8 30 2 15 1 13 14 1 20 15 1 15 16 1 20 15 1 17 18 1 20 20 1 19 20 1 20 SPACE 21 22 SPACE SPACE 23 24 SPACE INTEGRATED EQUIPMENT RATING: 10,000 AIC KVA TOTAL 0.0 0.0 PANELBOARD KVA LOAD TOTAL: 0.0 9 10 1 20 11 12 1 20 PANEL 925 CABINET RECESSED MOUNTED TYPE T & B TB VOLTAGE 240/120V, 1ф, 3W FEEDER MAINS 125A MCB DEVICE BRANCH CIRCUIT PHASE LOAD BRANCH CIRCUIT DEVICE S P AMP TRIP POLE ES NOTE ES DESIGNATION (VOLT-AMPS) DESIGNATION No. φa φb No. NOTE ES POLE ES S P AMP TRIP 125 2 MAIN CIRCUIT BREAKER MCB UNUSABLE SPACE 1 2 40 2 2 60 3 4 5 6 30 2 2 30 7 8 30 2 15 1 13 14 1 20 15 1 15 16 1 20 15 1 17 18 1 20 15 1 19 20 1 20 20 1 21 22 1 20 SPACE 23 24 SPACE INTEGRATED EQUIPMENT RATING: 10,000 AIC KVA TOTAL 0.0 0.0 PANELBOARD KVA LOAD TOTAL: 0.0 9 10 1 20 11 12 1 20 EXISTING PANEL SCHEDULES APARTMENT # 914, 925 C-3
APPENDIX C PANEL 1511 CABINET RECESSED MOUNTED TYPE Thomas & Betts TB VOLTAGE 240/120V, 1ф, 3W FEEDER MAINS 125A MCB DEVICE BRANCH CIRCUIT PHASE LOAD BRANCH CIRCUIT DEVICE A AMP PS TR IP P POL LES N NOT TES DESIGNATION (VOLT-AMPS) DESIGNATION No. φa φb No. 1 2 125 2 MAIN CIRCUIT BREAKER 3 4 2 50 5 6 60 2 7 8 2 30 9 10 30 2 11 12 1 20 SPACE 13 14 1 1 20/20 20/20 1 1 15 16 1 20 20 1 17 18 1 20 20 1 19 20 1 20 15 1 21 22 1 15 15 1 23 24 1 15 INTEGRATED EQUIPMENT RATING: 10,000 AIC KVA TOTAL 00 0.0 00 0.0 PANELBOARD KVA LOAD TOTAL: 00 0.0 N NOT TES P POL LES A AMP PS TR IP PANEL 1628 CABINET RECESSED MOUNTED TYPE T&BT & B TB VOLTAGE 240/120V, 1ф, 3W FEEDER MAINS 125A MCB DEVICE BRANCH CIRCUIT PHASE LOAD BRANCH CIRCUIT DEVICE AMP PS TR RIP POL P LES NOT N TES DESIGNATION (VOLT-AMPS) DESIGNATION No. φa φb No. NOT N TES POL P LES AMP PS TR RIP 125 2 MAIN CIRCUIT BREAKER M MCB UNUSABLE SPACE 1 2 40 2 RANGE AHU 2 3 4 5 6 30 2 DRYER CONDENSING UNIT 2 30 7 8 9 10 1 20 30 2 WATER HEATER 11 12 1 20 15 1 LIGHTING & RECEPTACLES 13 14 1 20 15 1 SECURITY 15 16 1 20 15 1 LIGHTING & RECEPTACLES 17 18 1 20 20 1 19 20 1 20 INTEGRATEDG EQUIPMENT RATING: 10,000 AIC KVA TOTAL 0.0 0.0 PANELBOARD KVA LOAD TOTAL: 0.0 60 Panel a e Notes: 1. Tandem breaker in single g space. p EXISTING PANEL SCHEDULES APARTMENT # 1511, 1628 C-4
APPENDIX C INDIVIDUAL UNIT NOTES Unit 1511 Loadcenter-Thomas and Betts 125A max, Type 1 Enclosure 120/20V, Type TB Breakers, 10 AIC RMS Symmetrical 1. Breakers burned at stab connections, replaced and relocated. Burned breakers provided for review. 2. Ground bus brackets broken away from enclosure. 3. Two (2) conductors and neutral brought in with neutral bonded to ground bus. 4. Voltage measured at 237V, A-B, 117V A-N, 118V B-N, which is normal. 5. AC unit indoors had 2 pole, 60A breaker on unit with 10KW Heat, Amps 49/45, MCA 50/51, Max 50/60 CU outside MCA= 22-9, MFA=40, 200/230 1PH 6. Building 15 had 16 meters on one end in banks of 4, SCE&G 1554076 CL200 240V 3W Itron ERT. Unit 1628 1. No burns noted on panel. 2. Some paint splatter on copper wiring. Air Handling unit 2P/60A on unit N.P.: MCA, CIRC.1 37/41 MAX OC- CIRC 1 37/41 Heater A- 26.7/30 FAN- 2.3A Unit 127 1. Loadcenter had 100A, 2P Cutler Hammer with #2 AWG feeder. 2. No burning, overheating noted. 3. AC NP: 208/230 MCA-CIRC 1 48/55 9.6 KW Heat MOCP- 50/60 3A, 1 ½ HP motor Had 2 pole, 60A circuit breaker Unit 815 1. T & B loadcenter 2. Power leads not color coded 3. Ground Bus Bracket Broken 4. Had overheated, breakers relocated 5. AC NP MCA= 34.9/40 MOCP= 35/40 Unit 813 1. T & B loadcenter 2. No apparent damage to bus. 3. Leads not properly marked. 4. AC- 2P-60A, MCA 50/56, MOCP 60/6 INDIVIDUAL UNIT NOTES C-5
APPENDIX C Unit 813(continued) 5. CU- 2P-30A, MCA 19.7, MOCP 30 Unit 914 1. 100A MCB 2. Voltage 240V A-B, 119V AG, A-N, 119V B-G, B-N 3. AC-MCA 47/55 MOCP 50/60 4. Panel breakers had been replaced, previous customer of CBR. Unit 925 1. Panel bus covered with paint spattering and needs to be cleaned, along with 125A, 2P MCB. 2. AC 2P 60 with MOCP of 50/60/ Unit 321 1. 125 A 2P MCB, Cutler Hammer 2. Voltages- 138V A-B, 119V A-G, A-N, 119V B-G, B-N 3. AC 208/230 MCA 48/55 MOCP 50/60 INDIVIDUAL UNIT NOTES C-6
APPENDIX D PICTURES D-1: APARTMENT 127 D-2: APARTMENT 127 D-3: APARTMENT 127 D-4: APARTMENT 127 D-5: APARTMENT 127 D-6: APARTMENT 321 D-7: APARTMENT 813 D-8: APARTMENT 813 D-9: APARTMENT 815 D-10 APARTMENT 815 D-11 APARTMENT 815 D-12 APARTMENT 815 D-13: APARTMENT 914 D-14: APARTMENT 924 D-15: APARTMENT 924 D-16: APARTMENT 1511 D-17: APARTMENT 1511 D-18: APARTMENT 1511 D-19: APARTMENT 1511 D-20: APARTMENT 1628 D-21: APARTMENT 1628 D-22: APARTMENT 1628 D-23: APARTMENT 1628
APPENDIX D 4/24/2012 AHU Info & CB Disconnect Bottom of Bus (1) Bottom of Bus (2) Cable Entry at Panel Top Door Number Ground Rod Under Building APARTMENT 127 D-1
APPENDIX D Ground Rod Under Building (2) Panel Bottom Panel Front Panel Ground Bus Bar Panel Interior & Ground Bus Panel Interior & Neutral Bus APARTMENT 127 D-2
APPENDIX D Panel Interior Panel Interior (2) Panel MFR Label SIEMENS Panel Neutral Bar Panel Schedule Service Conductors into Pull Box Loose Lock Nut (1) APARTMENT 127 D-3
APPENDIX D Service Conductors into Pull Box, Loose Lock Nut (2) Service Conductors into Pull Box Service Conductors from Transformer into Building Service Entry into Panel with Cut Entry Connector Service Entry into Panel Service Meter Ground Bonded to Pull Box APARTMENT 127 D-4
APPENDIX D Service Meter Ground Conductors Service Meters Top of Bus Service to Meter Basin APARTMENT 127 D-5
APPENDIX D Bottom of Bus MCB Panel Interior Cutler Hammer Service Entry to Panel APARTMENT 321 D-6
APPENDIX D Door Front Main Breaker on stubs-overspray plus Debris Outdoor Condensing Unit Next to Porch Panel Interior Neutral Bus Side Panel Interior Ground Bus Side Panel Interior APARTMENT 813 D-7
APPENDIX D Wire Tie (Typical) APARTMENT 813 D-8
APPENDIX D 2 nd Conductor down with Corrosion (1) 2 nd Conductor down with Corrosion (2) 2 nd Conductor down with Corrosion (3) 2 nd Conductor down with Corrosion (4) Back of Meter Bases with Grounding Door Front APARTMENT 815 D-9
APPENDIX D Ground Bus with Inc. Neutral and Service Neutral Bus with Broken Support Panel Burned Area at Mid Bus (1) Panel Burned Area at Mid Bus (2) Panel Burned Area at Mid Bus (3) Panel Burned Area at Mid Bus (4) APARTMENT 815 D-10
APPENDIX D Panel Interior Panel MFR Label and Circuit Schedule Top of Bus APARTMENT 815 D-11
APPENDIX D Panel Interior Bottom of Bus Panel Interior Top of Bus Panel Interior APARTMENT 914 D-12
APPENDIX D AHU Nameplate Door Front Ground Bus with Cable Entry Neutral Bus with Overspray on Conductors Panel Interior Panel MCB with Overspray APARTMENT 924 D-13
APPENDIX D Top of Bus APARTMENT 924 D-14
APPENDIX D AHU Unit Label AHU Unit with 60A 2P Disconnect Bottom of Bus Building 1511 Meter Bank CB Damage (1) CB Damage (2) 1511 APARTMENT 1511 D-15
APPENDIX D CB Damage (3) Charred Bus in Panel- Melted Insulation (1) Charred Bus in Panel- Melted Insulation (2) Condensing Unit Nameplate (1) Condensing Unit Nameplate (2) Condensing Unit Nameplate (3) APARTMENT 1511 D-16
APPENDIX D Exiting Cables Ground Bus Ground Bus Broken Loose From Panel Ground Bus LB at Meter Neutral Bus Support Intact APARTMENT 1511 D-17
APPENDIX D Neutral Bus Panel Info Panel Interior Panel Labels Panel Schedule Panel with Paint Overspray APARTMENT 1511 D-18
APPENDIX D PVC Service Entry Conduits Service Conductors in LB @ Meter Ground Bus with Incoming Neutral APARTMENT 1511 D-19
APPENDIX D Panel Front View AHU Info AHU Integral 2 Pole 60A CB Bottom of Panel Bus Cable Connections to Circuit Breakers Door Label APARTMENT 1628 D-20
APPENDIX D Meter Metering Lineup for Building 1628 Panel Circuit Entry at Top of Panel Panel FR Label Panel Ground and Service Entry Panel Ground Bus Intact APARTMENT 1628 D-21
APPENDIX D Panel Interior Panel Neutral Bus Intact Panel Schedule Service Cable Entry Service Conduits into Meters Service Conduits under Floor APARTMENT 1628 D-22
APPENDIX D Service Entry Conductors at Panel with Cut Fitting Service Entry Conductors at Panel Top of Panel Bus with 100A 2P Main APARTMENT 1628 D-23
APPENDIX E LOADCENTER REPLACEMENT E-1: EATON ESTIMATE E-2: EATON ESTIMATE E-3: TYPICAL PANEL SCHEDULE SENT TO EATON FOR PRICING SUMMARY: Material costs for loadcenter interior is provided at $300 per attached. Material costs for loadcenter replacements are estimated to be similar. Budgeting for loadcenter replacements should be in the $1000/unit range. Actual quotes may bring costs down somewhat.