Di-LOG DLCMEW182 Minor Electrical Installation Works Product Description DLCMEW182 - MINOR ELECTRICAL INSTALLATION WORKS CERTIFICATE For work that does not include a new circuit. This certificate would be used for any installation regardless of whether it is domestic or commercial. A Minor Electrical Installation Works Certificate is required for: an addition to an existing circuit an alteration to an existing circuit A typical alteration that this certificate might be used for is the addition of a lighting point or socket outlet to an existing circuit. It is a legal requirement to complete a Minor Electrical Installation Works Certificate (commonly called a ‘Minor Works Certificate’ ) or an ‘Electrical Installation Certificate’ for any electrical work being carried out on a domestic installation.