Which type of high-strength bolted joint installations do not require tension calibrator tension verification tests?

Snug tightened joints do not require tension calibrator tension verification tests because the installation process relies on achieving a certain level of inter-face contact rather than a specific tension in the bolts. In snug tightened joints, the bolts are turned until they make contact with the connected parts, eliminating any gaps but not applying a precise amount of tension. This method is sufficient for applications where high strength and precise bolt tension are not crucial, thus the requirement for tension calibration does not apply.

In contrast, fully tensioned joints, pre-tensioned joints, and partial tensioned joints all involve specific tensioning procedures where a calibrated tensioning method is applied to achieve the design strength of the joint. These types of installations necessitate tension verification tests to ensure that the bolts are installed within specified tension limits for structural integrity and performance.