Which scenarios require ground-fault protection of equipment to be performance tested when first installed?

Ground-fault protection of equipment is a crucial safety measure that must be implemented in various electrical installations to prevent electrical shock and equipment damage. Performance testing of ground-fault protection is necessary when ground-fault protection systems are first installed to ensure that they function correctly and consistently meet safety standards.

The rationale behind requiring performance testing for all types of installations is that ground-fault protection devices can be installed in a wide range of environments, including residential, commercial, industrial, and healthcare settings. These devices are designed to detect faults and interrupt power when unsafe conditions arise, regardless of the installation type.

Testing upon installation verifies the effectiveness of the protection systems, ensuring they operate as intended and provide the necessary safety for personnel and equipment. While some options suggest that testing is only necessary for specific types of installations, the requirement applies universally, which is why performance testing is essential for all installations where ground-fault protection is implemented. This ensures adherence to safety codes and prevents hazardous situations across all application environments.