NABCEP Building and Fire Codes 4

Question 1

The IFC requires a clear perimeter pathway around the roof edge of a large flat commercial building with a PV system. What is the minimum width of this perimeter pathway?

Accepted Answer

4 feet

Answer

The IFC requires a minimum 4-foot-wide perimeter pathway around the roof edge of commercial buildings to allow firefighter movement and ventilation operations.

Question 2

Which NFPA standard specifically covers the installation of stationary energy storage systems including battery-based PV storage in buildings?

Accepted Answer

NFPA 855

Answer

NFPA 855, Standard for the Installation of Stationary Energy Storage Systems, specifically governs battery and other ESS installations in and around buildings.

Question 3

Under the IFC, interior-mounted inverters must be separated from Group H occupancy areas by a fire barrier with a minimum fire-resistance rating of how many hours?

Accepted Answer

2 hours

Answer

The IFC requires a minimum 2-hour fire barrier between inverter rooms and adjacent Group H (high-hazard) occupancy areas to contain potential electrical fires.

Question 4

When ground-mounted PV arrays are classified as a structure under the IBC, which wind speed map must be used to determine design wind pressure?

Accepted Answer

The local jurisdiction's adopted wind speed map per the IBC

Answer

The IBC requires use of the locally adopted wind speed map from ASCE 7, which varies by Risk Category and geographic location.

Question 5

Which NEC requirement ensures that a PV system's DC arc-fault protection disconnects the faulted source circuit under the 2020 NEC?

Accepted Answer

NEC 690.11 (Arc-Fault Circuit Protection)

Answer

NEC 690.11 requires listed DC arc-fault circuit interrupters (AFCIs) on PV systems with DC source circuits operating above 80V to detect and interrupt arcing faults.

(NABCEP) Certified North American Board of Certified Energy Practitioners Specialist Practice Test

(NABCEP) Certified North American Board of Certified Energy Practitioners Specialist Practice Test

NABCEP Building and Fire Codes 4