According to NFPA 70E Table 130.7(C)(9)(a), if the short circuit current available is 25kA and the protective device has a 0.03 second (2 cycle) fault clearing time when compared to the device characteristic curve, a category 1 PPE is required with voltage rated gloves and tools. For < 10 kA short circuit current available, the hazard/risk category required may be reduced by one number.
Since it is not likely that the upstream protective device (utility fuses) will clear in 2 cycles or less, considering that the arc flash may occur at the meter, you would have to perform a detail calculation from 70E, probably resulting in a higher level PPE.
