Samoa power distribution box specifications and dimensions

Samoa power distribution boxes are typically outdoor-rated, fabricated from galvanized steel, with IP-55 protection, reinforced construction, and customizable dimensions depending on the application.G...

Samoa power distribution box specifications and dimensions

Samoa power distribution boxes are typically outdoor-rated, fabricated from galvanized steel, with IP-55 protection, reinforced construction, and customizable dimensions depending on the application.

General Specifications

Samoa power distribution boxes, used in residential, industrial, and commercial settings, are designed to receive and distribute electrical energy safely and reliably . Key technical features include:

  • Material: Fabricated from 2 mm galvanized iron (GI) sheet steel for the body, with reinforced channels for structural stability .
  • Protection Rating: IP-55, ensuring dust-tight and water-resistant performance suitable for outdoor installation .
  • Locking Mechanism: Typically equipped with a Godrej-type 3-position locking system, with additional galvanized manual locking provisions to prevent rusting .
  • Earthing: Two solid earthing points on either side of the box for safety compliance .
  • Roof Design: Slightly slanted roof with a 50 mm overhang at the front and back to prevent water ingress .
  • Cable Entry: Heavy-duty, double-compression brass cable glands for incoming and outgoing cables, with detachable plates for secure installation .
  • Bus Bars and MCCBs: Copper flat bus bars (25x4 mm) with 4-pole MCCB for incoming supply and 3-pole MCCBs for outgoing feeders, insulated with metallic or heat-resistant barriers .

Dimensions

While dimensions can vary depending on the manufacturer and project requirements, illustrative examples include:

  • Three-Level Distribution Box: Bottom length 25.5 cm × height 17.5 cm × width 8.5 cm; width including locking system 28 cm; material thickness 0.8 mm for the body and 1.2 mm for the lid .
  • Custom LT Distribution Boxes: Dimensions are typically provided with a 10% tolerance over the specified size, allowing customization for specific installations .

Applications in Samoa

The Samoa Electric Power Corporation (EPC) has upgraded its transmission and distribution network, including low-voltage distribution replacements across Upolu and Savaii islands, and installation of substations and underground cables . Distribution boxes are integral to these systems, ensuring safe and reliable power delivery to residential, commercial, and industrial users.

Summary

Samoa power distribution boxes are robust, outdoor-rated units with reinforced steel construction, IP-55 protection, secure locking, and flexible dimensions. They are designed to accommodate MCCBs, bus bars, and cable glands, supporting both low-voltage and high-voltage distribution needs. Customization is common to meet specific project requirements, and all boxes are expected to comply with international safety and electrical standards .

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