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Coal Mining Safety and Health Regulation 2017
sec.217Limiting duration of the shot sequence
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### sec.217 Limiting duration of the shot sequence
This section applies if delay detonators are being used to fire a shot in an ERZ1.
The shotfirer must ensure the time from firing the first detonator to firing the last detonator does not exceed 250ms.
(sec.217-ssec.1) This section applies if delay detonators are being used to fire a shot in an ERZ1.
(sec.217-ssec.2) The shotfirer must ensure the time from firing the first detonator to firing the last detonator does not exceed 250ms.