5 major characteristics of aluminum alloy busbar:

1. The GRMA aluminum alloy busbar trunking adopts a dense structure, and the overall structure is riveted with rivets for anti loosening and maintenance free. The aluminum alloy profile with heat sink design not only enhances heat dissipation but also greatly improves the strength of the bus duct. The length of linear units is not limited by transportation capacity, but also by design and production capacity, which can meet the needs of modern factory buildings for large-span bus ducts. Due to its good rigidity, there is no need to install hangers between 6-meter spans.

2. GRMA aluminum alloy bus ducts are made of high-purity electrical aluminum bars, with a chemical composition of aluminum content not less than a certain value. The resistivity is ≤ 0.029 at 20 ℃, and the conductivity is over 59.5%. The neutral and phase lines are designed with equal cross-sections. The overlapping parts can be treated with tin (or nickel) plating according to customer requirements to improve their antioxidant capacity.

3. The insulation material uses DuPont MYLAR polyester film multi-layer insulation, with a heat resistance level of B (130 ℃), flame retardant performance in accordance with UL94 standard requirements, non-toxic at high temperatures, and safe halogen-free.

4. Integrated grounding technology, the aluminum alloy shell with good conductivity has a cross-sectional area of more than three times that of the phase line, which fully complies with the International Electrotechnical Commission's advocacy of using the shell as the grounding conductor for the electric busbar. Due to the proximity of the PE line to the three-phase busbar as much as possible, the reactance is minimized and the voltage drop is reduced.

5. The connector adopts a docking method and a movable design. The copper busbar has a ± 8mm expansion space for docking, which can fully compensate for the linear expansion of the busbar after being energized and heated. GRMA busbars generally do not require special expansion joint units in application (except for building expansion joints).

Yunnan Youtong Electric Co., Ltd. is a professional manufacturer of busbar trunking cable trays with high cost-effectiveness. Crafted with ingenuity, it is durable and comes in a complete range of specifications at a low price. If you need it, please feel free to call us for consultation!