Compact busway is a closed-type power transmission device. Its core is composed of high-purity (≥99.95%) electrolytic copper or aluminum conductors. The surface of the conductors is tinned or silver-plated to enhance conductivity. It is wrapped with insulating materials such as cross-linked polyethylene on the outside, and adopts a "sandwich" laminated structure as a whole, so that the phases are arranged without gaps. The shell is usually made of aluminum-magnesium alloy or steel plate, which has both protection and heat dissipation functions. Its main structure includes:

?Conductor: The core component that carries current, and its cross-sectional area can be adjusted to meet different current requirements.
?Insulation layer: Prevents short circuits and ensures operational safety, and is resistant to high temperature and high humidity.
?Shell: Has high mechanical strength and excellent heat dissipation performance. Some designs are equipped with serrated heat sinks to improve heat dissipation efficiency.
2. ?Main features and advantages?
?Efficient transmission: Low-impedance design reduces energy loss and voltage drop, making it suitable for large-current (100~6300A) transmission.
?Space-saving: The compact structure occupies small space, making it suitable for installation in narrow places. The length of the horizontal section is usually ≤3 meters.
?Safe and reliable: The shell also serves as a PE wire, with good protection circuit continuity; flame-retardant insulating materials reduce fire risks.
?Strong dynamic stability: Resists electrodynamic impact and reduces magnetic oscillation noise (but dense arrangement may lead to relatively high temperature rise)