

Secondary Switchgear
PRAL
PRAL 12KV & 24KV Air Ring Main Unit — a compact switchgear solution for secondary power distribution networks, based on ABB load break switches NAL/NALF.
Voltage class12 / 24 kV
InsulationAir (AIS)
SwitchesABB NAL / NALF
- Metal enclosed unit for indoor installation
- Insulated by air (AIS)
- Maintenance-free and easy installation
- ON-OFF-Earth three-position load break switch
- Recyclable materials used
- Safe to approach and operate with power in the cables
- Fully automatic interlocking system
- Long service life — no additional replacement costs
Track record
PRAL ring main units delivered — and counting
Air-insulated ring main units engineered and commissioned by Powerline for distribution networks across Egypt — a portfolio that keeps growing. Below is a selection of delivered reference projects.
Hover any project to pause the roll
