OhmCert
OhmCert2026
Field Testing & Twin SaaS
🇬🇧 Full UI + PDF + National Standard Mapping: UI + PDF in English. Normative references follow international IEC 60364, BS 7671:2018+A2:2022, IEEE, and NFPA 70E/70B.
Interactive Engineering Help Center & Standard Selection Wizard

Which Standard Should I Choose? How Do I Measure & Use OhmCert?

Not sure which national/international standard applies to your project, how to connect your test instrument on site, or how to issue a signed certificate in OhmCert? Choose a guide tab below.

Step 1 of 2 · Select Country / Regulatory Jurisdiction

Where is the electrical installation located?

Step 2 of 2 · Select Facility / Inspection Scope

What type of facility or system are you inspecting?

Recommended Engineering Configuration

🇬🇧 United Kingdom & Commonwealth (BS 7671 IET Wiring Regulations) — Industrial Manufacturing Plant / Factory

Electrical Installations in the UK are verified to BS 7671:2018+A2:2022 (IET Wiring Regulations 18th Edition) under the Electricity at Work Regulations 1989 (EAWR). Periodic inspection produces an Electrical Installation Condition Report (EICR) applying the 0.8x conductor temperature rule on Zs.

Project FrameworkBS 7671
Nominal Voltage Uo230 V L-PE (400V 3F)
Typical Earthing SystemTN-C-S
Recommended UI/PDF LocaleEN

Applicable National & International Standards for This Jurisdiction:

BS 7671:2018+A2:2022 Part 4 (Chapter 41 Automatic Disconnection)BS 7671 Part 6 (Initial & Periodic Inspection and Testing)BS 7671 Section 712 (Solar PV) & Section 722 (EV Charging PME Rules)BS EN 62305 (Lightning Protection) & BS 5266-1 / BS EN 1838 (Emergency Lighting)BS EN 60079-14 / 17 (DSEAR Explosive Atmospheres)

Recommended OhmCert Modules for Industrial Manufacturing Plant / Factory (18 Modules):

#01IEC 60364-6

Earth Resistance & Equipotential Bonding Test Report

#02IEC 60364-4-41 / BS 7671

Loop Impedance (Zs) & Breaker Validation Calculator

#27IEC 60364-6 / EN 61008-1 / EN 61009-1

RCD / Residual Current Device Trip Time & Ramp Test Report

#31IEC 60364-5-52 / IEC 60364-4-43

Cable Ampacity (Ib <= In <= Iz) & Voltage Drop (%ΔU) Verification

#05IEEE 43

Cable Insulation Resistance & Polarization Index Calculator

#12IEC 61439-1 / NFPA 70B

LV Switchgear & Motor Control Center (MCC) Checklist

#30IEC 62271-100 / IEC 62271-200 / IEEE 400.2

MV Switchgear, VCB/SF6 Breaker & MV Cable VLF Test Report

#07IEC 60076 / NFPA 70B

Power & Distribution Transformer Inspection

#28IEC 60831-1 / IEEE Std 18 / EN 61921

PFC Capacitor Bank Step Current & Detuned Harmonic Reactor Audit

#29IEC 60034-1 / NEMA MG-1 / IEEE 43

AC Induction Motor & VFD Field Diagnostic Report

#06IEEE 519 / EN 50160

Power Quality & Harmonics Survey Report

#04IEC 60255 / IEEE C37

MV/HV Protection Relay Setting Calculator

#14NFPA 70E / IEEE 1584-2018

Arc Flash, Shock Boundary & PPE Safety Audit

#15IEC 62305-1/2/3/4

Lightning Protection System (LPS) & SPD Engineering Audit

#03EN 12464-1:2021 / EN 15193

Lux / Lighting Verification Report

#16BS 5266 / NFPA 101

Emergency Egress & Exit Lighting Test

#23NFPA 70B

Busbar Trunking Joint Torque & Infrared Survey

#25ISO 50001:2018 / IEC 60364-8-1

ISO 50001 Industrial EnMS, Reactive Compensation & Carbon Audit