Permitting part3 9.2.2010

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Permitting part3 9.2.2010

  1. 1. Development Services Department Division of Building, Construction and Safety Inspection Guidelines and Suggested Practices
  2. 2. Development Services Department Division of Building, Construction and Safety Inspection Process • To verify that the installation is in conformance with the design of the approved set of plans • To verify that the installation is in compliance with the California Electrical Code and other applicable codes and regulations
  3. 3. Development Services Department Division of Building, Construction and Safety Purpose of the Code “….the practical safeguarding of persons and property from hazards arising from the use of electricity”
  4. 4. Development Services Department Division of Building, Construction and Safety Current Code – 2007 California Electrical Code
  5. 5. Development Services Department Division of Building, Construction and Safety 2010 California Electrical Code – effective date – January 1, 2011 (adoptive code – 2008 NEC) 5
  6. 6. Development Services Department Division of Building, Construction and Safety Inspection Process • Contractor/owner responsibility to schedule and coordinate all required inspections • Responsible party on site • Provide access to all elements of system installation
  7. 7. Development Services Department Division of Building, Construction and Safety Inspection • Ground-mounted 1. footings for array frame 2. underground raceways 3. final Observe regulations for - Brush Management Zones, Environmentally Sensitive Lands, and Multiple Habitat Planning Areas
  8. 8. Development Services Department Division of Building, Construction and Safety Inspection (continued) • Roof mounted arrays Rough electrical (for any concealed work) Roof array and bond (for integrated systems or for tile roofs) Final inspection
  9. 9. Development Services Department Division of Building, Construction and Safety Necessary Paperwork on Site • Approved plans • Inspection record card (DS-1798) • Manufacturer’s Installation instructions – modules, racking, inverter
  10. 10. Development Services Department Division of Building, Construction and Safety
  11. 11. Development Services Department Division of Building, Construction and Safety Installation manuals – inverters, modules
  12. 12. Development Services Department Division of Building, Construction and Safety Roof Mounted Systems
  13. 13. Development Services Department Division of Building, Construction and Safety Roof Access • Cal -OSHA Compliant Ladder • Sitting squarely on level surface • Secured at top
  14. 14. Development Services Department Division of Building, Construction and Safety 14
  15. 15. Development Services Department Division of Building, Construction and Safety Tile roofs
  16. 16. Building Integrated Safety Development Services Department Division of Building, Construction and PV
  17. 17. Development Services Department Division of Building, Construction and Safety Racking Installation
  18. 18. Flashing and Weather and Safety Protection Development Services Department Division of Building, Construction
  19. 19. Development Services Department Division of Building, Construction and Safety
  20. 20. Development Services Department Division of Building, Construction and Safety Clearance to Vents
  21. 21. Development Services Department Division of Building, Construction and Safety 21
  22. 22. Development Services Department Division of Building, Construction and Safety Plumbing Vents •Plumbing vents cannot be covered by module installation •Vents shall terminate a minimum of •6” above or 1’ away horizontally from adjacent PV modules •Termination shall not be higher than the highest point of the existing roof •Vents less than 3” can be extended /offset but shall be properly and independently supported •All extensions shall meet the requirements of the California Plumbing Code •Extension on any plumbing vent 3” diameter or larger is not allowed 22
  23. 23. Development Services Department Division of Building, Construction and Safety Using Identified grounding points and approved devices and materials
  24. 24. Development Services Department Division of Building, Construction and Safety Combiner Boxes, Junction Boxes and Wiring Methods • Listed equipment • Installed per manufacturer's installation instructions • Cable Management • Conduit support
  25. 25. Development Services Department Division of Building, Construction and Safety Combiner box – string protection but mounted in incorrect orientation
  26. 26. Development Services Department Division of Building, Construction and Safety Listed Combiner Box providing string protection – correctly mounted and installed 26
  27. 27. Development Services Department Division of Building, Construction and Safety Junction boxes, conduit support
  28. 28. Development Services Department Division of Building, Construction and Safety Wiring methods and materials
  29. 29. Development Services Department Division of Building, Construction and Safety Cable Management
  30. 30. Development Services Department Division of Building, Construction and Safety Inverters and DC Disconnects • Listed utility interactive inverters • As-built conforms to the design • Installed per manufacturer’s installation instructions or recommendations • System grounding electrode conductor properly terminated
  31. 31. Development Services Department Division of Building, Construction and Safety Listed Utility-Interactive Inverter
  32. 32. Development Services Department Division of Building, Construction and Safety Conductor terminations
  33. 33. Development Services Department Division of Building, Construction and Safety Inverter locations
  34. 34. Development Services Department Division of Building, Construction and Safety Service Equipment • bus rating • existing main overcurrent protection • PV overcurrent protection • manufacturer breakers • cable or conduit entry • labeling • multiwire branch circuit relocation and balanced load on bus • grounding system
  35. 35. Development Services Department Division of Building, Construction and Safety Verifying Bus Rating
  36. 36. Development Services Department Division of Building, Construction and Safety
  37. 37. Development Services Department Division of Building, Construction and Safety
  38. 38. Development Services Department Division of Building, Construction and Safety PV breakers and existing multi- wire circuits
  39. 39. Development Services Department Division of Building, Construction and Safety Service Upgrades involving Scheduled Outages with SDG&E • Schedule DSD inspection for day of the scheduled outage • Contact the inspector re: time frame • Equipment installed, • framing weather-protected, • grounded, • service entrance raceway or riser and service entrance conductors installed
  40. 40. Development Services Department Division of Building, Construction and Safety Ready for reconnection?
  41. 41. Development Services Department Division of Building, Construction and Safety Grounding • Verify acceptable grounding for existing service equipment or provide a supplemental electrode • Provide service and system grounding compliant with the Code
  42. 42. Development Services Department Division of Building, Construction and Safety
  43. 43. Development Services Department Division of Building, Construction and Safety Water piping ground must be supplemented
  44. 44. Development Services Department Driven Ground Rod Division of Building, Construction and Safety
  45. 45. Development Services Department Division of Building, Construction and Safety DC and AC wiring through a structure 45
  46. 46. Development Services Department Division of Building, Construction and Safety CAUTION – Notching and 46 Boring Wood Members
  47. 47. Development Services Department Division of Building, Construction and Safety Load-bearing 2 x 12 floor joists @ 12” OC notched in middle 1/3 of span 47
  48. 48. Development Services Department Division of Building, Construction and Safety 48
  49. 49. Development Services Department Division of Building, Construction and Safety Properly fire stop around all penetrations of rated assemblies 49
  50. 50. Development Services Department Division of Building, Construction and Safety Signage and Placarding • Alternate power source placard • DC raceways and DC disconnects • Cautionary • Site specific design • PV disconnect for utility operation
  51. 51. Development Services Department Division of Building, Construction and Safety Alternate Power Source Placard
  52. 52. Development Services Department Division of Building, Construction and Safety
  53. 53. Development Services Department Division of Building, Construction and Safety
  54. 54. Development Services Department Division of Building, Construction and Safety
  55. 55. Development Services Department Division of Building, Construction and Safety Suggested practices • Survey the site – verify the adequacy and condition of the existing electrical system to accommodate a PV system • A service upgrade or other corrections may be required
  56. 56. Development Services Department Division of Building, Construction and Safety Inadequate work space
  57. 57. Development Services Department Division of Building, Construction and Safety Service Disconnects – Maximum Six Handles without a Main Disconnect
  58. 58. ExistingofService Department Development Services Division Entrance Building, Construction and Safety
  59. 59. Development Services Department Division of Building, Construction and Safety Existing service
  60. 60. Development Services Department Division of Building, Construction and Safety Service supplied by SIDA cable
  61. 61. Development Services Department Division of Building, Construction and Safety Alternative Energy Systems installed with safeguarding life and property in mind
  62. 62. Development Services Department Division of Building, Construction and Safety Questions?

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