Lithuanian Outdoor Distribution Box Parameter Configuration

Outdoor distribution boxes for Lithuania should be configured with IP65 or higher protection, corrosion-resistant materials, proper busbar sizing, and secure earthing to ensure safe and reliable operation in outdoor conditions.Material and ConstructionOutdoor distribution boxes should be fabricated from 2 mm GI sheet steel or stainless steel for durability and corrosion resistance, with reinforced channels for structural stability . The roof should be slightly slanted with an overhang to prevent water ingress, and doors should have secure locking systems such as Godrej-type 3-position locks . Hinges should be concealed to enhance security and aesthetics.Protection RatingThe box should meet IP65 or higher to ensure dust-tight and water-resistant performance suitable for outdoor environments . This protects internal components from rain, dust, and other environmental factors.Busbars and Electrical ConnectionsPhase busbars: Typically made of EC grade aluminum or copper, with dimensions depending on capacity (e.g., 72x50x8 mm for 63/100 kVA, 120x50x15 mm for 160/315 kVA), .Feeders and incomer droppers: Sized to carry full load current, with proper PVC insulation and color coding for phases (R, Y, B), .Neutral busbar: Isolated from the body, with bimetallic lugs for secure connections .Cable Glands and MountingHeavy-duty, double compression cable glands should be provided at the bottom for incoming and outgoing cables .Rubber glands with a minimum 1 mm thickness film ensure a tight seal and easy cable insertion .Internal components should be mounted on 2 mm CRCA MS strips with high-tensile nuts, bolts, and washers .EarthingTwo solid earthing points on either side of the box, with zinc-plated bolts and clamps, are recommended .Earthing should comply with local electrical safety standards to ensure proper fault current dissipation.Protection DevicesProvision for MCCBs (4-pole for busbar, 3-pole for outgoing feeders) with magnetic trip and manual reset .Optional integration of short-circuit, overload, overvoltage, and leakage protection for enhanced safety .Additional FeaturesNameplates and identification marks should be embossed or riveted on the door for traceability .Provision for internal lighting and ventilation may be included for maintenance convenience .Phase insulation can be achieved using colored tubing or paint (Red, Yellow, Blue, Black) for clarity .SummaryFor Lithuanian outdoor applications, the distribution box should combine robust mechanical construction, IP65 protection, appropriately sized busbars, secure earthing, and reliable protection devices. These parameters ensure safe, durable, and compliant operation in outdoor electrical distribution networks.