Final answer:
Live parts with voltages between 50V to 1,000V must be safeguarded, typically by making them accessible only to qualified persons or by elevating them to prevent unintended contact, in accordance with safety standards.
Step-by-step explanation:
Live parts operating at voltages ranging from 50V to 1,000V should be properly guarded to ensure electrical safety. The National Electrical Code (NEC) provides guidelines that specify how these live parts should be shielded to prevent electrical shock and accidents. In a general context, parts within this voltage range can be guarded in different ways, such as being placed in locations that are only accessible to qualified persons, or being elevated above the floor to a specified height to prevent unintentional contact.
From an educational standpoint, understanding the risks associated with electrical systems is crucial. Handling high-voltage equipment requires following strict safety protocols, such as using insulators, employing transformers to step down voltage for safer use, and wearing personal protective equipment like insulated shoes. Awareness of how current flows through the body, particularly taking care to avoid a direct path to ground that could pass through the heart, is essential for safety.