Locking receptacles are used in applications where ___ is a primary concern.

Locking receptacles are specifically designed to provide a secure connection between the outlet and the plug, ensuring that the connection remains intact even in applications where movement or vibration might occur. This is particularly important in settings where the reliability of electrical connections is critical for safety and functionality. The design of locking receptacles allows them to maintain consistent contact, thereby reducing the risk of disconnection and potential electrical hazards.

While ease of installation, cost efficiency, and space-saving design may be considered in various electrical applications, they are not the primary focus when using locking receptacles. The primary concern with these devices is to ensure that there is reliable and consistent electrical contact to avoid interruptions in power supply, which can lead to operational failures or safety risks.