Category Electrical

Electrical, Planned Preventative Maintenance

Electrical thermographic surveys: how thermal imaging finds faults before they cause downtime

Thermal inspection through an electrical panel inspection window

How electrical thermographic surveys use thermal imaging to find loose connections, overloads and failing components under load, with no shutdown needed.

Delta First Editorial Team
October 13, 2026

Compliance, Electrical

When does a commercial distribution board need upgrading?

New commercial distribution board being installed

When does a commercial distribution board need upgrading? Warning signs, what EICR codes mean, BS 7671 Amendment 4 and what the upgrade work involves.

Delta First Editorial Team
October 13, 2026

Compliance, Electrical

6 step electrical fault finding to BS 7671 for UK technicians

Electrician fault finding on an industrial control panel

Technician focused six step fault finding aligned to BS 7671. Checklists, half split and elimination locating methods to diagnose faults faster.

Delta First Editorial Team
October 3, 2026

Compliance, Electrical

BS 7671 amendment 4 (2026): 4 changes UK facilities managers need to know

Electrician completing certification for new electrical work

Practical BS 7671 updates for UK facilities managers: order the Orange Book, prioritise battery, PoE and medical sites, update EICR templates and act by...

Delta First Editorial Team
October 3, 2026

Compliance, Electrical, Planned Preventative Maintenance

UK FMs: justify RCD testing under BS 7671 A4:2026, EICR & PPM

Close-up of an RCD test on a distribution board

UK FMs: meet BS 7671 A4:2026 RCD testing requirements. Learn what to record, justify risk based intervals, and align tests with EICR/PPM.

Delta First Editorial Team
September 8, 2026

Electrical, Facilities Management, Mechanical, Planned Preventative Maintenance

UK chiller maintenance: PPM schedule that meets F‑gas and Legionella

Commercial chiller plant being inspected

Chiller maintenance checklist for UK facilities managers: daily to annual PPM that links task frequency to F‑Gas leak checks and Legionella compliance.