Fire on a hydrogen gasholder

[NOTE of HIAD Validator: One source speak of a hydrogen gasometer, Spanish news speak in general of gas, others of natural gas or coal gas; considering the main product of the factory, it was chosen for this last version, but is rather doubtful]

This incident occurred at a coal gas storage (gasometer) system of a producer of foundry coke. The gasholder was a variable capacity tank, rising in height depending on the amount of gas stored, with a maximum capacity of 24,000 m3.
Company sources said that the fire was caused as a result of a spark and a gas leak that was being repaired by the operators.
The alarm went off at about 10:30 when the emergency services received notice of a fire at the gas tank. The fire fighters worked to avoid an explosion. At 11:30, the real possibility of an explosion forced the emergency management to evacuate all people living and working within a radius of 500 metres.
The initial fire slightly affected two operators who later re-joined the company.

gasometer

According to the company the storage system was checked every day. It ws in the process of being checked when the leak was detected.