An electrician received an electric shock whilst running a new cable through an existing cable tray. While retrieving the cable, his hand touched the bare end of live cable which was in the cable tray. As a precautionary measure, he had a medical evaluation at an onshore medical facility and received a full clearance to return to work.
What went wrong?
- The cable had apparently been installed and secured at the time of vessel construction and was found coiled and secured in the cable tray with plastic cable ties;
- The wire end of the cable was not covered; it was cut flush with cable jacket and was labelled ‘spare’.
What were the causes?
- A live or energised wire installed during the build phase was hidden from view in a cable tray;
- The wire was incorrectly labelled;
- The energised wire was installed and labelled as a heater in the electrical panel with the breaker engaged in the on or closed position, but the end of the wire marked as a ‘spare’.
What actions were taken? What lessons were learned?
- Our member conducted an onsite ‘Cable Verification Campaign’ – all accessible cable trays were checked. All spare cables and wires were tagged and identified;
- Ensure relevant checks are performed during the new build phase;
- Have a thorough pre-inspection of a work area where cables are present, and notify relevant personnel of any anomalies;
- Ensure relevant permit to work (PTW)/isolations are in place.
Members may wish to refer to:
IMCA Safety Flashes summarise key safety matters and incidents, allowing lessons to be more easily learnt for the benefit of all. The effectiveness of the IMCA Safety Flash system depends on Members sharing information and so avoiding repeat incidents. Please consider adding [email protected] to your internal distribution list for safety alerts or manually submitting information on incidents you consider may be relevant. All information is anonymised or sanitised, as appropriate.
IMCA’s store terms and conditions (https://www.imca-int.com/legal-notices/terms/) apply to all downloads from IMCA’s website, including this document.
IMCA makes every effort to ensure the accuracy and reliability of the data contained in the documents it publishes, but IMCA shall not be liable for any guidance and/or recommendation and/or statement herein contained. The information contained in this document does not fulfil or replace any individual’s or Member's legal, regulatory or other duties or obligations in respect of their operations. Individuals and Members remain solely responsible for the safe, lawful and proper conduct of their operations.