NABCEP - Certified North American Board of Certified Energy Practitioners Specialist Building and Fire Codes Questions and Answers

Question 1

When designing a PV array layout on a residential roof with a single ridge, what is the primary purpose of the 36-inch (3-foot) setbacks required on both sides of the ridge by the International Fire Code (IFC)?

Accepted Answer

To create a clear pathway for firefighters to perform ventilation and access the roof.

Answer

To provide a load-bearing surface for stacking firefighting equipment.

Answer

To reduce wind uplift pressure on the modules located nearest the ridge.

Answer

To ensure sufficient clearance for satellite dish signals and other antennas.

Question 2

A structural engineer is evaluating a commercial building's roof for its capacity to support a new PV system. Which standard, referenced by the International Building Code (IBC), provides the methodology for calculating design loads for wind, snow, and seismic forces?

Accepted Answer

ASCE 7

Answer

UL 1703

Answer

NEC Article 690

Answer

NFPA 70B

Question 3

According to the NEC and fire safety standards, what is the principal reason for the rapid shutdown requirement (NEC 690.12) for PV systems on buildings?

Accepted Answer

To reduce the risk of electric shock for firefighters and other emergency responders.

Answer

To allow for safe maintenance by electricians without de-energizing the entire building.

Answer

To protect the PV equipment from damage during a utility grid outage.

Answer

To prevent back-feeding the utility grid during a power failure.

Question 4

A PV system's fire classification is determined by testing the module and racking system together. Under UL 1703, what fire classification represents the highest level of resistance to fire exposure for a rooftop PV system?

Accepted Answer

Class A

Answer

Type 1

Answer

Category IV

Answer

Tier 1

Question 5

Per NEC 690.56, a label for the rapid shutdown switch must be placed near the initiation device. Which of the following color schemes is specified for this particular label?

Accepted Answer

White letters on a red background.

Answer

Black letters on a yellow background.

Answer

Black letters on a white background.

Answer

Red letters on a white background.

Question 6

Before installing a rooftop PV system, the International Building Code (IBC) requires that the roof's structural integrity be verified. Which of the following is a mandatory requirement?

Accepted Answer

A structural analysis must be performed to confirm the roof can support the additional dead and live loads.

Answer

The roofing material must be replaced if it is more than 10 years old.

Answer

The PV array must cover less than 50% of the total roof area.

Answer

The building owner must increase their property insurance coverage.