Town of Lyons (CO)

Codes

NEC Code Version

2020

Code List

2021 INTERNATIONAL BUILDING CODE

2021 INTERNATIONAL BUILDING CODE STANDARDS.

2020 NATIONAL ELECTRICAL CODE

ASCE Code Specification

ASCE 7-16

SolarAPP+ & submittal

SolarAPP+ Status

Testing

Any SolarAPP+ Restrictions

1

SolarAPP+ Restrictions

MPU,Derate

Revision Required

0

New Planset Required For Module Swap

0

Stamps

Wet Stamps Required

Digital Structural

Structural Calculations Required

Yes

Stamp Location On Plans

Unspecified

Date On Stamps

Expiration Date

Fire setbacks

Fire Setback Enforced

0

Setback Notes

Standard

Structural & loads

Wind Speed

165

Wind Notes

Exposure Category C

Snow Load

45

Reducible Snow Load Allowed

1

Max Attachment Spacing

96

Structural Notes

\- A professional engineer’s seal and signature is required for all PV installations that will not be located on a single-family dwelling or duplex. \- Details that show how the panels will be mounted. Engineer’s design required when panels are not flush-mounted on roof. Calculations performed by a Colorado registered professional engineer must be submitted to substantiate that the structure can support the design loads specified in Chapter 16 of the International Building Code (IBC). Details and calculations for the panel connections to the roof must be included.

Minimum Ground On Roof

#10

Electrical

Electrical Load Calcs Required

Derates

Allowed POI

PV Breaker,Meter Adapter,Load Side Taps,Line Side Taps

Panel Schedule Required

Partial Home Backup

Temperature Rating

90

De Rating Ampacity

0.96

Battery / ESS

Unique Battery Placards Needed

0

ESS Notes

Standard

Separate ESS Disconnect Required

ESS Disconnect

ESS Elevation Detail Required

No

Plan set

Plan Set Requirements

A professional engineer's seal and signature is not required for single-family dwelling or duplex PV installations, unless the proposed PV system equals or exceeds a maximum solar output of 10 kilowatts or includes provisions for a generator or battery backup.

Electrical Diagram

**A professional engineer’s seal and signature is not required for single-family dwelling or duplex PV installations, unless the proposed PV system equals or exceeds a maximum solar output of 10 kilowatts or includes provisions for a generator or battery backup.** One-Line Diagram: Indicate all conductor sizes and insulation types, conduit sizes, fuse and circuit breaker ratings, inverter ratings, ground fault protection device (GFPD), AC and DC disconnect ratings. Specify the PV module’s nameplate short circuit current (Isc) and open circuit voltage (Voc). If disconnects, breakers, fuses, GFPD, etc. are part of a larger piece of equipment, show them as such by indicating how they are connected to the other devices and indicating their ratings. The inverter must be shown as either connected to a dedicated branch circuit with back-fed overcurrent protection (NEC 705.12(B)(1)) or connected to the supply side of the service disconnecting means (NEC 705.12(A)). The AC and DC grounding electrode conductors must be shown on the one-line diagram (NEC 690.41). Calculations: Submit conductor ampacity calculations based upon 156% multiplied by the short circuit current (Isc) (NEC 690.8), or where the PV system rating is greater than 100 kilowatts, submit a documented and stamped PV system design using an industry standard method and provided by a licensed professional electrical engineer to indicate the maximum current value. The current value obtained by using the method indicated in NEC 690.8 cannot be less than 70% of the value calculated using NEC 690.8(A)(1)(1). Also include the temperature derating correction factor per NEC Table 690.31(A). For all roof-mounted flexible wiring, use a worstcase ambient temperature of 61-70°C (141-158°F) per NEC Table 609.31(A). Provide calculations showing that the sum of 125% of the inverter(s) output circuit current and the rating of the overcurrent device protecting the AC load center is less than or equal to 120% of the load center bus rating, where the utility and inverter sources are located at opposite ends of the load center busbar (NEC 705.12(B)(2)(3)(b)). Provide calculations showing that the maximum PV system voltage is less than the maximum rated DC inverter input voltage and less than the voltage rating of all connected equipment (NEC 690.7). The maximum PV system voltage is equal to the open circuit voltage multiplied by the number of modules in the series, multiplied by the NEC lowest expected ambient temperature derating correction factor from Table 690.7(A) for the -21°C to -25°C (-5°F to -13°F) range. Provide calculations indicating that the equipment grounding conductor is sized correctly (NEC 690.43 and 690.45). Provide drawing with location of all new and existing electric service equipment.

Ground mount

Ground Mount Fencing Required

Mesh/Scrim