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I would be looking at having more than eye and face protection, if I was in a situation where an arc flash could occur.
All that is required to cause an arc fault is say a tool slipping (screwdriver or spanner), or a tool falling onto some live equipment.
If this doesn't help at all, please ask more questions, we have a good knowledge base here.
Let's face it, these days if you're not young, you're old - Red Green