Power Quality
Exploring the causes of triplen harmonics in commercial distribution boards. Detailed evaluation of active harmonic filters versus passive detuned capacitor banks under ENA Recommendation G5/5.
Inspection & Testing
How infrared condition monitoring identifies thermal gradients in main switchgear before catastrophic electrical fires occur. Threshold delta-T limits and quantitative reporting frameworks.
Inspection & Testing
Clarifying dutyholder legal obligations under Regulations 4(2) and 16 of the Electricity at Work Regulations. Distinguishing between C1, C2, and FI observation coding.
Mechanical & HVAC
Complying with BS EN 378 safety limits for refrigerant volume in occupied spaces. Electrical interlocks for mechanical extract ventilation and acoustic attenuation.
Power Quality
Technical assessment of Section 722 provisions. Protecting vehicle users from touch voltages on PME supplies through earth rod islands, automatic PEN disconnection devices, or isolation transformers.
Power Quality
Energy coordination between Type 1 spark-gap lightning current arresters and Type 2 metal-oxide varistors (MOV). Lead length inductance constraints (<0.5m) and overcurrent back-up protection.
