Eskom says an incident at Koeberg nuclear power station where a technician onsite accidentally cut a wrong valve had no impact on the running unit. The incident, where the technician is said to have cut a valve on the reactor known as Unit 1, instead of the same valve on Unit 2, was reported in an internal Koeberg newsletter to staff. In its response to the incident the power utility says Koeberg's high safety measures timeously identified the error and prevented any damage being caused. It says Unit 1 has now been safely online and running, without any interruptions. Sakina Kamwendo spoke to by Programme Manager for nuclear power plants at the National Nuclear Regulator Peter Bester