And deal with a range of general problems and severe faults, which include...
- Loose connections. Yearly maintenance should include a torque test of main Busbar joints
- Dust and vermin ingress, causing shorts and trips
- High resistant joint failure - loss of phase
Periodic cleaning of panels should be carried out to ensure long-term, reliable and safe operation. Without any internal cleaning, severe problems may result.
- High temperature thermal fail - devices and adjacent equipment
- Arc flashover
An Arc Flash is caused by a rapid release of energy due to an arcing fault between one phase Bus bar and another, a neutral, or ground. Faults can be caused by dropped tools, unintentional contact, build-up of conductive dust, corrosion or particulate matter. Such faults will result in intense heat (up to 20,000degC), thermoacoustic Shockwave (160db), shrapnel, intense light and toxic smoke (arc blast expansion 40,000:1).