County of Thurston (WA)

Codes

NEC Code Version

2020

Fire Code Version

2018 Building Code

Code List

2021 INTERNATIONAL BUILDING CODE

2021 INTERNATIONAL RESIDENTIAL CODE

2021 UNIFORM PLUMBING CODE

2021 INTERNATIONAL FIRE CODE

2021 INTERNATIONAL MECHANICAL CODE

2021 INTERNATIONAL FUEL GAS CODE

2021 INTERNATIONAL PERFORMANCE CODE FOR BUILDINGS AND FACILITIES

2021 INTERNATIONAL EXISTING BUILDING CODE

2021 INTERNATIONAL PROPERTY MAINTENANCE CODE

2021 WA STATE ENERGY CODE

2020 NATIONAL ELECTRICAL CODE (NEC)

ASCE Code Specification

ASCE 7-16

SolarAPP+ & submittal

Revision Required

0

New Planset Required For Module Swap

0

Stamps

Ee Stamp Required On SLD

No

Wet Stamps Required

None

Structural Calculations Required

No

Fire setbacks

Fire Setback Enforced

1

Structural & loads

Wind Speed

97

Snow Load

15

Snow Load Notes

https://hazards.atcouncil.org/#/

Reducible Snow Load Allowed

1

Electrical

Electrical Load Calcs Required

Derates

Allowed POI

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

Supply Tap Neutral Ground Bond Required

1

Plan set

Plan Set Requirements

For all Trenches

• 2 Disconnects required - one at each end of trench
• Required for AC or DC trenches

Electrical Diagram

For all Line Side Connections:

• Neutral and ground bonded in fused disconnect
• #6 bare copper run from N/G bar to (E) MSP's GEC and crimped
• Schedule 80 PVC must be used in between fused disconnect and MSP - only showing 2 hots and neutral
• All other conduit can be EMT

For all Load Side Taps:

• Schedule 80 PVC must be used in between disconnect and MSP

Custom Placards Required

0