Permit Review Detail
Review Status: Completed
Review Details: OTHER
Permit Number - T05CM01291
Review Name: OTHER
Review Status: Completed
| Review Date | Reviewer's Name | Type of Review | Description | Status | Comments |
|---|---|---|---|---|---|
| 04/21/2005 | LINDA BUCZYNSKI | ELECTRICAL-COMMERCIAL | REVIEW | Denied | TRANSMIT ORIGINAL DRAWINGS WITH NEXT SUBMITTAL. PLEASE CALL AT 791-5550 X1106 OR EMAIL AT Linda.Buczynski@tucsonaz.gov IF YOU CARE TO DISCUSS. 1. Specify how the connections are to be made to enable the two "extra" panels on the top row to be series connected with the 8 panels on the bottom row. 2. Connection Diagram shows 2 Row Boxes. Roof View shows only one. Clarify. 3. Calculate the maximum system photovoltaic system voltage per NEC 690.7 (A). The basis for such calculations shall be the sum of the rated open-circuit voltage of the series-connected panels. 4. Provide calculations for circuit sizing per NEC 690.8 and 690.9. 5. Size the overcurrent protection per NEC 690.8 and 690.9. 6. Size the amperage rating of the Disconnecting Means. 7. Add the following note: "Installation shall comply with all requirements of NEC 2002." 8. Specify conductor insulation type, all runs. 9. BP sells an extension cable, composed of USE-2, to allow connection of module cables to the row boxes. Cable and terminations have been assembled in factories under UL approval. Please specify this method of connection. 10. Please note that plans and specifications prepared by a registrant shall be issued under his seal. Some of the drawings appear to have been generated by a Registrant, Bill Henry of TEP. 14. Please add the DC system Grounding Electrode Conductor, and clearly indicate its' connection to the Grounding Electrode System. Please add such Grounding Electrode Conductor on plans. Suggest that Engineer review NEC 250.64 (C) for continuity requirements. Also review NEC 250.166 before the specification of the minimum size. See the attached "Grounding Utility Interactive PV Inverters." 11. It appears that each parallel string needs its own OCPD. (2) (1.56) (7.34) + (1.25) (7.34) = 32.07A, which exceeds the minimum series fuse rating of 15A. See the attached "PV Modules and the Series Overcurrent Device." 12. Sizing of module interconnection connectors shall comply with NEC 690.8 (D). 13. For the run between the modules and the J-Box, specify Conduit and Conductor types based on what is included in the National Electrical Code. 14. Specify the conduit and conductor between DC disconnect and inverter, and between inverter and AC disconnect. 15. Specify the overcurrent protection on the inverter output circuit. 16. Locate AC disconnect on plans, and specify its parameters. Reference NEC 690.15. 17. Indicate the capacity of the AC busbar, such that the Plans Examiner is able to evaluate compliance with NEC 690.64 (B) (2). 18. Specify the marking per NEC 690.14 (C) (2). 19. Submit a catalogue cut sheet for the circuit breaker indicated on the Sunshare system diagram, including the enclosure intended for its installation. 20. By both the AC and DC disconnects, specify the sign required in NEC 690.17. Include exact wording. 21. Specify the marking required in NEC 690.53. Include exact wording. Specify placement. |
Final Status
| Task End Date | Reviewer's Name | Type of Review | Description |
|---|---|---|---|
| 04/27/2005 | GBONILL1 | OUT TO CUSTOMER | Completed |