New York State Master Electrician Practice Exam

What is the maximum amperage for fixed-in-place X-ray equipment supplied through an attachment plug?

1. 15 Amps

2. 20 Amps

3. 30 Amps

4. 40 Amps

The correct answer is: 30 Amps

The maximum amperage for fixed-in-place X-ray equipment supplied through an attachment plug is 30 Amps. This standard is established to ensure safety and proper operation of the equipment, as X-ray devices require specific power requirements that must not only support their function but also adhere to safety regulations. Equipment like X-ray machines can draw significant current during operation, especially when generating the X-rays. By setting the maximum permissible amperage at 30 Amps for these devices, it provides a safe limit that balances the equipment's operational needs with the electrical system's capacity. This limitation helps prevent overheating and potential electrical hazards, ensuring the equipment operates smoothly without overloading the circuit that supplies power to it. Lower amperages like 15 Amps or 20 Amps would be inadequate for the demands of fixed-in-place X-ray equipment, potentially leading to insufficient power reaching the device, whereas a higher amperage limit, such as 40 Amps, would exceed safety requirements and possibly lead to hazardous electrical conditions. Therefore, adhering to the 30 Amps standard is critical in maintaining a safe and effective operational environment for X-ray equipment.