Journeyman Electrician Practice Exam

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Prepare for the Journeyman Electrician Exam. Test your skills with multiple-choice questions designed to help you succeed. Each question comes with hints and detailed explanations to assist in your study process.

Practice this question and more.

For neon sign equipment, above what open circuit voltage is installation not allowed in dwelling occupancies?

500 volts
750 volts
1,000 volts
1,250 volts

The correct answer is: 1,000 volts

For neon sign equipment, installation is not permitted in dwelling occupancies when the open circuit voltage exceeds 1,000 volts. This guideline is grounded in safety considerations, primarily aimed at preventing electrical hazards in residential environments. Voltages above this threshold can pose significant risks to human safety, including the likelihood of severe electric shocks or fire hazards. The National Electrical Code (NEC) and various local electrical codes stipulate these limits to ensure that residential installations maintain a level of safety appropriate for spaces where people live and may not have extensive training or experience with high-voltage systems. Voltages above 1,000 volts are typically associated with specialized industrial or commercial systems that can safely manage the higher risks involved, which is why such installations are restricted in homes and similar occupancies. Overall, this regulation is in place to protect occupants and ensure that electrical systems used in living spaces are as safe as possible.