Michigan Residential Builders License Practice Test

What type of helmet is required for employees exposed to voltages of more than 600 volts?

1. Class A helmet

2. Class C helmet

3. Class B helmet

4. Class D helmet

The correct answer is: Class B helmet

In environments where employees may be exposed to electrical voltages of more than 600 volts, a Class B helmet is necessary. Class B helmets are specifically designed for electrical work and provide protection against electrical hazards due to their insulating properties. They can withstand high-voltage shock and are tested to ensure they can handle electrical energy effectively, making them essential for ensuring the safety of workers in electrical environments. The other helmet classes, while offering protection, are not capable of safeguarding against high-voltage electrical hazards. Class A helmets provide limited protection from electrical hazards and are better suited for general construction work, while Class C helmets are non-electrical and offer no electrical protection at all. Class D helmets, designed primarily for use in scenarios involving high temperatures, also lack the necessary electrical insulation required when working near more than 600 volts. Therefore, it's crucial for electrical workers to equip themselves with Class B helmets to comply with safety standards and protect themselves from serious electrical risks.