Serious Earthing Fault Identified During Home Electrical Safety Inspection (IS 10101)
- Location
Crumlin, Dublin
- Service Provided
Periodic Inspection Report (PIR) & Electrical Remedial Works
- Standards
IS 10101 – Irish National Rules for Electrical Installations
- Company
Project Overview
A homeowner contacted Fuseguard Ltd requesting a home electrical safety inspection for a 3 bedroom house in Crumlin, Dublin. The client wanted peace of mind that their electrical installation was safe and compliant with Irish regulations.
We carried out a Periodic Inspection Report (PIR) in line with IS 10101 – the Irish National Rules for Electrical Installations.
During the inspection, a serious earthing fault was identified that posed a real danger to the occupants of the property.
What We Found During the Electrical Inspection
Electrical testing showed that the property did not have an effective PEN conductor, a critical part of the earthing system.
As a result:
- Earth fault loop impedance (ZE) measured 773Ω
- Fault current could not flow correctly
- Protective safety devices may not disconnect in the event of a fault
In simple terms, if a fault had occurred, metal parts within the property could have become live, creating a serious risk of electric shock.
Why This Earthing Fault Was Dangerous
Under IS 10101, electrical systems must disconnect quickly during a fault to protect people and property. Without a proper PEN connection:
- Protective devices may fail to trip when required
- Exposed metalwork can reach dangerous voltages
- The risk of electric shock or electrical fire is significantly increased
This type of fault is often hidden and would not be obvious without professional electrical testing.
Remedial Electrical Works Carried Out
Following the results of the Periodic Inspection Report, Fuseguard Ltd carried out the necessary remedial works to restore safety and compliance, including:
- Correctly restoring the earthing arrangement
- Reinstating an effective PEN connection
- Checking and verifying main protective bonding
- Carrying out full post-repair electrical testing
All works were completed in accordance with IS 10101 requirements.
Final Results After Remedial Works
Once the work was completed, the installation was retested:
- ZE reduced from 773Ω to 0.21Ω
- A safe earth fault path was restored
- Protective devices confirmed to operate correctly
- Electrical installation returned to full IS 10101 compliance
Outcome for the Homeowner
Home made electrically safe
Serious hidden earthing fault identified and fixed
Compliance with Irish electrical standards
Peace of mind for the homeowner
Why a Periodic Inspection Report (PIR) Is So Important
This case demonstrates why a Periodic Inspection Report is essential—particularly in older homes or properties that have had previous electrical work carried out.
Dangerous faults can exist without any visible warning signs and may only be discovered during professional inspection and testing.
A PIR is not just paperwork — it is a vital electrical safety check that can protect lives.
Need an Electrical Inspection?
If you’re unsure about the safety of your home’s electrical system, don’t wait for a fault to occur. Hidden issues like earthing faults can exist for years and may only be identified through professional testing.
Fuseguard Ltd provides Periodic Inspection Reports (PIRs) and home electrical safety inspections fully compliant with IS 10101, helping homeowners across Ireland stay safe and protected.
Call Fuseguard to arrange a home electrical safety inspection and get complete peace of mind that your installation is safe and compliant.
Your safety isn’t optional, get peace of mind with a professional electrical inspection from Fuseguard ltd.
Main Office
Walkinstown, Dublin 12
Ireland
Make a Call
087 385 8913
Mon - Fri: 8:00 am - 4:00 pm
Sat: 9:00 am - 2:00 pm
Send a Mail
Email Us
admin@fuseguard.ie