Gemmo Quadri

PERSONNEL SAFETYObtained by:• Ground wire of whole switchboard structure (bus bar in copper plate with a normal section of 200 sq mm) andremovable components for all transit of connection and disconnection.• Insulating cut-off automatically activated during the movement of drawers (if removable).• The moves are made from outside the switchboard; it is possible to access to live parts by using some tools or solutionswhich prevent any contact with the live parts.• With drawer disconnected or removed, the protection degree for the part under voltage is IP2X.• Careful selection of insulating materials based on characteristics of high degree of fire proof and low smoke emission.• The separation between the different units prevent the spread of any fire.• All the equipments are easily accessible, by prior removal of drawers (MCC/E), doors and/or panels (MCC/F).METALLIC STRUCTUREMAIN BUS BAR AND BRANCHESThe compartment structure, self-supporting, ismade up of standardized elements in steel sheetwith a minimum thickness of 25/10 mm.The structure elements provided with modular holesare assembled together through joints in steelsheets with electrical points and special screws.On the structure are employed modular drawers(removable or fixed), side and rear bumping panels,front doors, subdivisions and disconnections,support for different cubicles . The minimum thicknessof steel sheet is 15/10 mm.The internal accessories, the supporting panel,bolts and screws are galvanized and passivated.The main bus bar, in copper plate have standardizedsections for rated current of 800-1250-1600-2000 A.They are realized with air insulation and are divided.The support of bus bar is realized with modular supportingstamped in fire proof material, with high mechanicalfeatures, which may support thermal andelectrodynamics resulting from the short circuit current.The main bus bar usually transit from one compartmentto the other in order to form a continuous conduit.The branches are realized as main bus bar andhave standardized sections for rated current 400-600-800 A.The junction area are processed (on request) andsilvered.44