المواصفات الفنية لنظام قضبان التوزيع/قنوات التوزيع المدمجة

Basic Requirements

ال busbar trunking system (busway) shall feature a lightweight structure, flexible installation configuration, and high ampacity (current-carrying capacity), making it suitable for large-scale power distribution.

The specific requirements are as follows:

1) Conductor Material:

The conductors shall be made of high-purity electrolytic tough pitch (ETP) copper (equivalent to T2 grade), drawn to specification.

• نقاء: >99.9%
• المقاومة الكهربائية: <0.01777Ωm㎡/m
• Configuration: The copper busbars shall feature full rounded edges (R-edge) and be tin-plated along the entire length.

2) Enclosure (Housing):
The enclosure shall be constructed from high-strength, high-quality aluminum-magnesium alloy extrusions featuring integrated heat dissipation fins.

• Profile Thickness: ≥4mm.
• Properties: The housing must possess excellent heat dissipation capabilities, high corrosion resistance, and non-magnetic properties.

3) Insulation Material:
The copper busbars shall be fully wrapped with a “C-type” polyester film (e.g., Mylar).

• Properties: The insulation material must be halogen-free.
• Flame Retardancy: Class B or higher.
• Thermal Endurance: ≥130℃.

Installation Requirements

1. Joints: Straight sections shall be designed for simple butt-joint installation.
2. System Configuration: Three-phase four-wire + PE (Protective Earth).
3. Section Length: The length of straight sections shall be determined by site conditions, with a maximum length of 3 meters per section.
4. Connections: The system must feature reliable electrical and mechanical connection mechanisms.
5. Key Components: The system shall include straight sections, feeder sections, tap-off units (plug-in units), end caps, and mounting supports/hangers.
6. شهادة: The product must provide valid compliance reports (e.g., Type Test Reports) and relevant safety certifications.

Applicable Standards

The manufacturing, inspection, installation, and acceptance of the busway system shall comply with the following international standards:
IEC 61439-1 – Low-voltage switchgear and controlgear assemblies – Part 1: General rules. (Supersedes IEC 60439-1)

IEC 61439-6 – Low-voltage switchgear and controlgear assemblies – Part 6: Busbar trunking systems (busways). (The primary international standard for busways).

IEC 60529 – Degrees of protection provided by enclosures (IP Code).

IEC 60060 – High-voltage test techniques.

NEMA BU 1.1 – General Instructions for Proper Handling, Installation, Operation, and Maintenance of Busway Rated 600 Volts or Less.

EN 13601 – Copper and copper alloys – Copper rod, bar and wire for general electrical purposes.

ISO 2081 – Metallic and other inorganic coatings – Electroplated coatings of zinc with supplementary treatments on iron or steel. (Relevant for housing/mounting hardware).