Electrical Permit Checklist for Residential Solar Photovoltaic Systems - continued
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DevSvcs-TE-1.1-20160812
I have attached an Electrical One-Line Diagram that includes:
Wire sizes
Conduit Sizes
Metering
Grounding electrode conductors
Overcurrent devices and sizing
Disconnect co-located with production meter
Comments:
3. BUILDING PERMIT EXEMPTION CHECKLIST
Yes No
PV system is designed and proposed for a detached one- or two-family dwelling or townhouse not more
than three stories above grade or detached accessory structure that is code compliant to setbacks and
height, or code allows expansion of nonconformity for solar modules.
Modules installed do not exceed the highest point of the roof.
Specify roof pitch (rise/run):
Rooftop is made from lightweight material such as a single layer of composition shingles, metal roofing,
lightweight masonry, or cedar shingles.
The installation will comply with the manufacturer's instructions.
The installation will meet the requirements of NFPA 70 National Electric Code, and all required electrical
permit(s) must be obtained from the Authority Having Jurisdiction to administer the electrical code.
The installation will meet the requirements of the International Fire Code as amended by WA State.
If yes, indicate which option will be used to meet the IFC access regulations:
The dwelling will be sprinklered so no access pathways are required
The total array does not exceed 33% of the total roof area and does not exceed 1,000 sq ft in total area and
18" minimum unobstructed pathways will be provided along each side of all horizontal ridges
Pathways meeting IFC Sections 605.11.3.2.1 through 605.11.3.2.4 are to be provided
The PV system is designed for the wind speed of the local area, and will be installed per the manufacturer's
specifications.
The ground snow load does not exceed 70 pounds per square foot.
Total dead load of modules, supports, mountings, raceways and all other appurtenances weigh no more
than four pounds per square foot.
Enter total dead load of system (psf):
To address uplift, modules are mounted no higher than 18" above the surface of the roofing to which they
are affixed.
Supports for solar modules are installed to spread the dead load across as many roof-framing members as
needed to ensure that no point load exceeds fifty (50) pounds.
The photovoltaic modules and supporting structure will be constructed of noncombustible materials or fire-
retardant treated wood equivalent to that required for the roof construction.
Roof and wall penetrations will be flashed and sealed to prevent entry of water, rodent, and insects.
PV modules are listed and labeled with a fire classification in accordance with UL 1703. [IRC M2302.2.3]
If you answered yes to all of the above questions in Section 3, your project does not require a building permit.
An Electrical permit is still required.
As the property owner or authorized representative of the above listed property, I attest that all information in this
checklist is accurate to the best of my knowledge. Inaccurate information may result in having to modify or remove
the installation.
Applicant Signature:
Date:
Applicant Printed Name:
For office use only:
Staff Initials:
Date:
Permit #: