SHI Codes Compliance & Performance Testing 3

Question 1

Which electrical code article primarily applies to the wiring of solar photovoltaic systems that may be paired with a solar thermal control system on the same structure?

Accepted Answer

NEC Article 690

Answer

NEC Article 690 covers the electrical installation requirements for solar photovoltaic systems, which are often co-located with solar thermal systems.

Question 2

Under the International Mechanical Code (IMC), solar thermal fluid piping that passes through fire-rated assemblies must be protected with:

Accepted Answer

An approved fire stop system maintaining the fire-resistance rating

Answer

The IMC requires that any piping penetrating fire-rated walls or floors be sealed with an approved firestop system to restore the rated assembly.

Question 3

The SRCC OG-100 certification tests solar collectors under what simulated conditions to determine collector efficiency?

Accepted Answer

Varying irradiance levels and inlet fluid temperatures relative to ambient temperature

Answer

OG-100 testing measures collector efficiency across a range of (Tin–Ta)/G values to produce an efficiency curve valid for diverse real-world conditions.

Question 4

A homeowner's HOA restricts roof modifications. Which federal or state-level legal principle often overrides HOA solar restrictions in most U.S. states?

Accepted Answer

Solar access laws or solar easement statutes adopted by most states

Answer

Most U.S. states have enacted solar access or solar rights laws that limit HOAs' ability to prohibit solar installations on private property.

Question 5

During a system performance test, the instantaneous collector efficiency (η) is calculated using which formula?

Accepted Answer

η = Q_useful / (A × G)

Answer

Instantaneous collector efficiency equals useful heat gain divided by the product of collector area and incident solar irradiance.

(SHI) Solar Heating Installer Certification Practice Test

(SHI) Solar Heating Installer Certification Practice Test

SHI Codes Compliance & Performance Testing 3