Detonation transfer assembly

A thermally-initiated venting system, comprising:

• a first stage pyrotechnic;
• a detonation transfer assembly coupled to the first stage pyrotechnic and configured to be actuated by the first stage pyrotechnic, wherein the detonation transfer assembly comprises a primary explosive and a secondary explosive disposed axially-adjacent to the primary explosive;
• and
• an energetic transfer line coupled to the detonation transfer assembly, wherein the energetic transfer line is configured to be ignited by the detonation transfer assembly;
• wherein, at least one of the primary explosive or the secondary explosive comprises a thermally insensitive initiation material that resists at least one of detonation or thermal degradation in response to a temperature increase rate of 3.3° C. per hour over at least twenty hours.

A method of igniting a thermally-initiated venting system, comprising:

• igniting a first stage pyrotechnic;
• igniting a primary explosive in a detonation transfer assembly in response to the igniting the first stage pyrotechnic;
• igniting a secondary explosive in the detonation transfer assembly in response to the igniting the primary explosive;
• and
• igniting an energetic transfer line in response to the igniting the secondary explosive,
• wherein the secondary explosive comprises at least one of hexanitrostilbene or nanonitroterphenyl.