7700 Electrical minor (0) Electrical minor 7701 Electrical basic (26) Combined electrical including, primary and general power distribution, lighting, appliances and related wired services, for small houses and equally simple non-residential buildings 7702 Electrical standard (15) Combined electrical including, primary and general power distribution, lighting, appliances and related wired services, for residential and medium scale commercial/industrial buildings 7703 Mechanical electrical (1) Combined electrical for minor electrical work associated with mechanical projects 7707 Electrical common requirements (59) General electrical matters common to the detailed electrical items included in separate specific electrical sections. Would always accompany those specific sections