Official blames irregular connections for fire damage at Laguna del Náinari substation, Mexico

What happened

A municipal official said irregular electrical connections at the Laguna del Náinari site damaged a substation, and released a video showing a fire in one of its electrical units. The official said the problem began with tampering with the installations and the connection of equipment without authorisation, which overloaded the power lines and caused overheating until the substation was damaged. Some people were reported to have broken protective padlocks to connect directly, without permission.

Power was lost to some areas of the site for a couple of days, and service was said to be restarting after the incident. Authorities said measures would be taken to prevent a repeat. The cause has been stated by the official and has not been independently confirmed.

Contributing factors

According to the municipal official, the factors were unauthorised connections to the electrical installations, equipment connected without approval, protective padlocks broken to allow direct connection, and resulting electrical overload and overheating. The mayor warned that traders and private individuals will not be permitted to make their own connections because of the risk to the infrastructure and to visitors.

Lessons learned

1. Locked or protected electrical enclosures and substations need regular inspection so that tampering is detected before it causes overload.
2. Unauthorised direct connections add load that the network was not designed to carry, and operators should monitor for unexpected loads on shared lines.
3. Clear rules on who may connect to public or shared electrical infrastructure, backed by enforcement and communication to the public, reduce the risk of tampering-driven failures.

More lessons on detection and monitoring, emergency response and public communication, from every incident on the register.

Source

infoson.com.mx