What is the maximum voltage (VAC) that insulating blankets provide protection for?

Insulating blankets are specifically designed to protect workers from electrical hazards by providing insulation against high voltages. The maximum voltage that these blankets are rated for in terms of protection is often established by industry standards. In this case, the correct choice of 21,000 VAC indicates that insulating blankets are capable of safely providing protection up to that voltage level.

Insulating blankets are typically used for electrical work on overhead lines and equipment to prevent accidental electrical contact. Understanding voltage ratings is crucial for ensuring the safety of personnel who work near or on electrical systems. Therefore, using a blanket rated for the appropriate voltage is essential to reduce the risk of electrical shock or other related injuries.

When working with higher voltages, it is critical to select the appropriate insulating equipment to maintain safety standards, which is why 21,000 VAC is recognized as a key protection level for insulating blankets.