AERB: No deficiency in Kudankulam valve

The unit was also under shutdown during the Maintenance work.

By: Press Trust of India | New Delhi | Published:June 16, 2014 1:27 am

Atomic Energy Regulatory Board (AERB) has ruled out any deficiency in the construction of a valve in Unit 1 of the Kudankulam Nuclear Power Plant where six people were injured last month due to spillage of hot water from it during maintenance work.

Nuclear regulator AERB, in a report, has blamed “inadequate draining of hot water” before taking up the routine maintenance work of the valve and said there was no deficiency in its construction.
On May 14, six people were injured – three workers of the NPCIL and three contract workers — due to spillage of hot water during the maintenance of the three-way hot water inlet valve to a healer loop in the turbine of KNPP Unit 1.The unit was also under shutdown during the Maintenance work.

Sources in ROSATOM, the Russian state atomic agency which has built the reactor, said when the plant is closed for maintenance, water should be not released in less than 24 hours, but in the case of KNPP, the accident occurred as water was drained before that period.

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