Fire-Rated Busway Basic Parameters
- Product Series：YBNHCMC
- Product Name：Fire-Rated Busway
- Product Brand：Yue Biao
- Specification：XF/T537-2005；JB/T10327-2011（IEC61439）；GB/T7251.6-2015(IEC61439-6:2012)
- Conductor Material：ETP copper, tin-plated (silver-plated optional)
- Enclosure Material：A3 cold-rolled steel sheet
- Fire-resistance rating: 60 / 120 / 180 min
- Degree of protection：IP54 / IP66
- Unit Length：0.8 m / 3 m standard; 0.4–6 m customizable on request
- Rated operational Voltage (Ue)：AC 690 V
- Rated insulation Voltage (Ui)：AC 1000 V
- Rated current：400–4000 A
- Frequency：50-60Hz
- Dielectric performance：3750 V/min:（no flashover or breakdown）
- Industry Application：Commercial buildings, data centers, hospitals, metro, factory power distribution
- Customization：Tailored dimensions, color, tap-off positions, IP rating and fire-resistance time on request.
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Fire-Rated Busway Scope of application
YBCMC series fire-resistant bus duct is suitable for AC three-phase four-wire and three-phase five-wire power supply and distribution systems with a frequency of 50-60 Hz, rated voltage ≤ 690 V and rated current ≤ 4 000 A. It can operate continuously under normal conditions and maintain circuit integrity for a specified time during a fire, making it an effective replacement for fire-resistant cables in critical installations—especially emergency systems.
