Requirements for Electrical, Mechanical & Plumbing
Electrical, Mechanical and Plumbing Plan Check Requirements for Commercial Structures:
- All plans are now submitted through the ePlan Review Portal.
- No red ink or pencil
- Signature of designer with license number or seal on first sheet of both sets in ink ONLY. Unlicensed designers will not be accepted.
- Minimum sheet size 18" x 24"
For Additions and Remodels:
- Clearly distinguish between new work and existing work. Indicate existing components affected by new work.
Electrical Specific Requirements:
- Schematic diagram of all wire runs including main, sub feed, branch circuits
- Indicate with standard symbols all fixtures, junction boxes, load centers, main panels.
- Scale 1/4" - 1'-0" standard for overall plan. Use appropriate scale for details and sections.
- Indicate all materials used for wiring runs including raceways, supports, panels, service entrance, etc.
- Indicate bonding/grounding system.
- Provide load schedule; should include; disconnect/over current protection means, working voltages/amperages/wattage/horsepower/etc.
- Show compliance with current Title 24 non-residential energy standards as adopted by the California Energy Commission
- Indicate compliance with Title 24 California Electrical Code regarding accessible electrical elements.
Mechanical Specific Requirements
- Show compliance with current Title 24 non-residential energy standards as adopted by the California Energy Commission.
- Schematic floor plan indicating duct runs, branches, supports, and related fittings. Use standard symbols. (An isometric plan may be required on complicated systems.)
- Identify all equipment in system including air handler(s), HVAC equipment, etc. Include all make, model, size, installation details, etc. HVAC equipment must be CEC approved.
- Identify combustion air sources for fuel burning equipment.
- Dimension all runs.
- Call out materials, sizes and types.
- Demonstrate flue (venting) design details for fuel burning equipment.
- Indicate how penetrations in rated construction are protected.
- Differentiate between supply air and return air ducts.
- Provide information to local fire district on all flammable gasses and liquids handled by system.
Kitchen Hoods:
- Indicate all fuel burning equipment to be protected (include size).
- Provide plan view and elevation views for two sides not more than 90 degrees apart. (Indicate relationship to kitchen floor area).
- Indicate vertical distance between top of equipment & lip of hood.
- Indicate shaft construction, cleanout(s), blower detail and make-up air blower. (Must be tempered make-up if over 2500 cfm.).
- Call out all materials, sizes, fasteners, controls, etc.
- Provide fire suppression system details to local fire district.
- For Type I hoods provide duct sizing calculations.
Plumbing Specific Requirements
DWV Systems:
- Show compliance with current Title 24 non-residential energy standards adopted by the California Energy Commission.
- Isometric diagram of main run, branches, vents, fittings, and fixture location.
- Schematic floor plan indicating relationships of fixtures and locations. Use standard symbols.
- Indicate all materials used in DWV systems if less than 1/4" per foot. (Pre-approval required for slopes less than 1/4" per foot).
- Indicate fixture make, type, etc. Fixtures must be listed types approved by CEC.
- Dimension run lengths.
- Provide cleanouts per UPC
Water/Gas Systems (Piping system only):
- Schematic diagram of piping layout, isometric diagrams may be required on more complicated systems.
- Indicate demand load per fixture/appliance served.
- List fixture/appliances by make, model, etc. Provide manufacturer's data as applicable.
- Dimension run lengths.
- Indicate working pressures.
- Indicate bonding system(s) used.
Plumbing Requirements
Indicate compliance with Title 24 California Plumbing Code regarding accessible plumbing elements.
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