Re-entry Times - Surface Operations

Last updated November 05, 2025 07:55

A minimum 5-minute re-entry time applies to all blasts (EBS, electric, non-electric) except for:

Blast initiated by a safety fuse have a minimum wait time of 30 minutes!

Conditions	Minimum re-entry time*
After a well-behaved blast with no known or suspected misfires	5 minutes
In the case of EBS -after programming of detonators by the Blast Box has begun, and the blast has been aborted.	5 minutes
After known misfires e.g. an electronic detonator in a single primed explosives deck does not report good at firing time	5 minutes
After unknown or unexpected misfires, including an EBS blast which appears to have out-of-sequence firing, which should initially be treated as a misfire, since the system may not have worked as intended	5 minutes
Blast that includes packaged explosive and detonating cord systems in pre-split applications i.e.PyroSplit	5 minutes
Blast initiated by safety fuse	30 minutes

* All re-entry times are subject to local regulation, if local regulations specify a greater requirement the local regulation must be adhered to.

If the shotfirer conducting the re-entry identifies a hazard post blast it should be adequately risk assessed before proceeding – hazards may include but are not limited to dust, fume, wall stability, a blast that did not perform as expected etc.

If you have any further questions, please contact your regional Product Manager or the Global IS/EBS Marketing Team.

Conditions

Minimum re-entry time*

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