Wiring, roof and safety

Wiring and electrical safety

• AC breaker trips, inverter shows no fault

  An external breaker can operate without the inverter displaying a detailed explanation.

• Earth-leakage trips only on solar backup

  An earth-leakage device that trips during backup should not be bypassed to restore power.

• Buzzing or burning smell at the DB board

  Smoke, visible arcing or signs of active burning require immediate action: keep away, alert others and call local emergency services.

• Electric tingle from taps or metalwork

  Treat an electric tingle or shock from a tap, appliance or exposed metalwork as an urgent electrical warning.

• Exposed solar cables or cracked conduit

  Damaged cable protection should be reported even if the solar system still works.

• Rodent damage to solar wiring

  Chewed cable coverings, nesting material near equipment or a fault that keeps returning can justify checking for animal damage.

• Why a bigger breaker won’t stop tripping

  When a breaker keeps tripping, replacing it with a higher-rated one can sound like a quick solution.

• Long AC cable: voltage rise and losses

  The cable between an inverter and the building’s electrical connection is part of the system design.

• No earthing test records for your solar

  A missing earthing report leaves an information gap.

• Restarting solar after water got inside

  Keep away from electrical equipment affected by flooding or internal water entry.

• Checks after a fire near solar

  After a fire, visible panel damage is only part of the assessment.

• Does an IP rating cover every condition?

  An IP rating describes specified enclosure protection.

• Main breaker off doesn’t make solar safe

  A property with solar and storage can have several electrical sources.

• Inverter Damaged by Lightning: What to Do Next

  If you suspect an inverter damaged by lightning, keep it switched off, do not keep trying to restart it, and photograph everything before anyone touches it.

• Stabilizer With Solar Inverter: Do You Need One, and Where Does It Go?

  Most homes do not need a stabilizer with solar inverter systems, and putting one on the inverter's output usually causes more problems than it solves.

• Solar System After Flood: Safe Restart Steps for Homes and Factories

  A solar system after flood water has reached the inverter, battery or distribution board should stay switched off until a qualified engineer has inspected and tested it.

Roof and structure

• Roof renovation and your solar system

  Roof repairs, waterproofing, painting and other building work can bring people and materials close to solar panels, supports and cables.

• Roof leaking after solar installation

  A roof leak noticed after solar work deserves prompt investigation.

• Base plates on tiles or the structural slab?

  A tiled roof can hide the difference between the surface you can see and the structure that must carry the solar installation.

• Cracked concrete around solar supports

  Concrete around a solar support should not be judged solely by whether a crack looks small in a photograph.

• Solar structure blocking roof drainage

  Solar supports, cable routes and accumulated debris should be considered when reviewing how water leaves a roof.

• Planning roof access around solar panels

  A solar layout needs to allow for the work that comes after installation: inspections, cleaning, drainage maintenance, repairs and other roof access.

• Rust returning on a repainted structure

  Fresh paint can improve appearance without resolving the reason steel is corroding.

• Corrosion checks for humid sites

  A humid or industrial location changes what should be considered during equipment selection and maintenance.

• Solar on an old or weak roof

  An old roof is not automatically unsuitable for solar, and a newer roof is not automatically suitable.

• Solar panels overhanging the roof edge

  An overhang should be assessed against the actual design.

• Removing panels for roof repairs

  Roof repairs sometimes require part or all of an array to be removed.