Which of the following is not classified as a type of electrical disaster?

Lightning flicker is not classified as a type of electrical disaster in the context of regular electrical system failures or issues. While it refers to the flickering or fluctuation of lights that can result from lightning strikes, it is more a phenomena associated with natural events rather than a direct consequence of electrical system failures or malfunctions.

In contrast, a power outage is a loss of electricity due to various potential causes such as equipment failure or overload. Light flicker typically indicates fluctuations in the power supply, often caused by disturbances in the electrical network. Electrical shock relates to the dangerous effects of electrical current passing through a body, which is a clear safety hazard. All these options represent issues directly related to the electricity supply or usage rather than natural phenomena or unrelated occurrences.