HOLT Electricians Practice Exam

Lighting fixtures must be designed to prevent adjacent combustible materials from being subjected to temperatures exceeding what degree Celsius?

1. 70 C

2. 80 C

3. 90 C

4. 100 C

The correct answer is: 90 C

The correct choice indicates that lighting fixtures must be designed to prevent adjacent combustible materials from being subjected to temperatures exceeding 90 degrees Celsius. This standard is significant for ensuring safety in electrical installations. Fixtures generating excessive heat have the potential to ignite nearby combustible materials, thereby increasing the risk of fire hazards. Determining the appropriate temperature threshold is crucial for compliance with building and electrical codes. Maintaining this temperature maximum helps protect structural integrity and prevents the ignition of materials that can lead to dangerous situations. This design consideration reflects best practices in electrical engineering and safety protocols for electrical installations, emphasizing the importance of thermal regulation in preventing fires. The specified temperature of 90 degrees Celsius serves as a benchmark that balances practical functionality with necessary safety measures. By adhering to this standard, electricians play an essential role in safeguarding building occupants and property from the dangers associated with overheating electrical components.