Yes, LEV testing is required to that part of the system, after any changes to the system, whether improvements made to the system or failures revealed on the test. This is required to be inspected by competent LEV technicians to ensure that it is up to standard. This need not be a full test of all systems at the site, thus it should be lower cost.
If some of our LEV fails the thorough examination and test does it need testing after we have had it repaired?
