Specifications of Indian Emergency Lighting Distribution Boxes

Indian Emergency Lighting Distribution Boxes are typically fabricated from 2 mm GI sheet, designed for outdoor use, with IP-55 protection, busbar arrangements, MCCB provisions, and solid earthing points.

Construction and Material

Body Material: Fabricated from 2 mm galvanized iron (GI) sheet with reinforced channels for structural strength. Roof Design: Slightly slanting with 50 mm overhang at front and back to prevent water ingress. Doors and Hinges: Doors equipped with Godrej-type 3-position locking system; hinges are concealed for security and aesthetics.

Sealing: Rubber gaskets between doors and base ensure dust and water ingress protection.

Electrical Features

Voltage Rating: Typically 415V AC for emergency lighting circuits. Busbars: EC grade aluminum busbars with adequate clearance from the box body; sizes vary depending on capacity (e.g., 72x50x8 mm for 63/100 KVA, 112x50x15 mm for 160/315 KVA),.

Incoming/

Outgoing Feeders: Provision for one busbar arrangement with 4-pole MCCB for all LTDB capacities and outgoing feeders with 2 sets of 3-pole MCCBs. Cables: Multicore armored power and control cables, with sizes ranging from 2-core 6 sq.mm to 1-core 630 sq.mm XLPE/Aluminum.

Protection and Safety

Ingress Protection: IP-55 degree of protection, ensuring resistance to dust and water. Earthing: Two solid earthing points on either side of the box; GI flats (75x8 mm and 50x6 mm) used for earthing. Isolators and Cutouts: Porcelain cutouts for outgoing circuits; isolators with arc-chutes to extinguish arcs immediately, rated for 80 kA breaking capacity.

Standards and ComplianceBIS Standards: Emergency lighting units and distribution boxes conform to IS 9583: 1981 and relevant IEC standards for emergency luminaires. Testing: Type test certificates for IP-55 protection and electrical performance from CPRI or government-approved laboratories are required.

Additional Features

Outdoor Suitability: Designed for outdoor installation with corrosion-resistant finishes. Maintenance: Provision for easy access to busbars and MCCBs for inspection and maintenance. Flexibility: Can accommodate combined emergency luminaires (maintained or non-maintained) and self-contained or centrally supplied systems.

These specifications ensure that Indian Emergency Lighting Distribution Boxes are robust, safe, and compliant with national standards, suitable for industrial, commercial, and high-voltage substation applications.