Ensure that employees are not performing the job which is not assigned to them. Ensure checking the size of the cable lug for its correct match prior to leaving the stores. Ensure that all activities are performed with proper supervision and with proper Control of Work. Enlarging the cable lug hole is prohibited as it would reduce the material integrity, potentially compromise on the strength and electrical conductivity; it was not known to the carpenter. If a lug doesn't fit properly, crew should stop the work and seek to obtain the one with correct size rather than trying to modify the existing one. All electrical work must only be carried out by competent electrician who must be available at site during the execution of the work. All grounding cables must be properly checked using industry standard connectors, terminals, distribution boxes etc. before installation.