Z とは何ですか? Z をテストすることがなぜ重要なのですか。
接地故障ループインピーダンスパスの説明 Zs = Ze + (R1 + R2) 接地配置 TN-S および TN-C-S
SELECTIVITY, DISCRIMINATION and CO-ORDINATION of electrical devices for protection
fault loop impendance as/nz 3000.2018 explained
TESTING RADIAL CIRCUITS Lighting, Cookers, Showers and Radial Socket circuits.
OVERCURRENT DIFFERENCES – OVERLOAD – SHORT CIRCUIT – EARTH FAULT – WHAT ARE THEY & HOW DO THEY WORK?
絶縁抵抗試験およびトレース
WHAT IS R1+R2. How to change the values, what do they mean.
SAFE ISOLATION PROCEDURE for Electrical Circuits. Why we do it, how we do it.
Line Impedance Stabilization Networks (LISNs) for EMC testing
NEUTRAL & EARTH | Differences | clear explanation
overload and short circuit calculation LET exam fault current
WHAT IS POWER FACTOR OR PF – WHAT DOES kVA MEAN – WHY ARE kW DIFFERENT TO kVA – WITH WORKED EXAMPLES
Electrical Certificates Part 3 - EICR - Electrical Installation Condition Report
RCD – C2 and C3 EICR CODES and TESTING Type AC and Type A devices – THE DIFFERENCES
RCD - RCCB and RCBO Differences explained
#electrical #ground_wire #explanation
grounding and reference
AC Electrical Circuit Analysis: Reactance
AMENDMENT 2 - 18th EDITION - PROSUMER ELECTRICAL INSTALLATION - PEI – WHAT IS IT? - VIDEO SHORTS 7