What are the three main types of tests performed during the inspection and testing process?

The three main types of tests performed during the inspection and testing process are visual inspections, dead tests, and live tests.

Visual inspections involve checking for obvious physical defects or issues that can be easily identified by looking at the equipment or installation, such as signs of wear, damage, or incorrect installation. This type of inspection is critical as it can often reveal problems before any further testing is necessary.

Dead tests are conducted on electrical installations while they are powered down. These tests involve checking for insulation resistance and continuity to ensure that all components are correctly connected and safe. Dead testing is essential for verifying the integrity of the system without it being energized, ensuring safety for personnel during the testing process.

Live tests, on the other hand, are performed while the equipment or installation is energized. This type of testing checks the functionality and operational performance of the system under normal working conditions. Live tests are important for assessing the actual performance and safety of the installation during operation.

Together, these types of tests provide a comprehensive assessment of the safety and functionality of electrical systems, adhering to the necessary codes and standards.