Suppression of blast pressure and noise from implosive-type connectors
- CANMET, Ottawa (Canada)
- Thomas Engineering and Construction Ltd., Ottawa, Ontario (Canada)
Implosive-type electrical/mechanical connectors such as XECONEX have been used extensively for joining electrical transmission lines. This implosive action of explosives has also been applied to other forms of high energy metal working with excellent results. However, as with many other products, the inherent blast energy of these units has caused some environmental concerns especially when used in proximity to inhabited areas. This paper identifies the problem associated with the use of this type of connector in inhabited areas and details the efforts directed toward its solution. A test program was designed in which various materials and configurations were evaluated as potential candidates for reducing the blast pressure. The explosive charges were in two configurations; linear charges assembled with detonating cord and steel pipes wrapped with detonating cord. Various materials of varying densities and sizes were then used as a wrap around the explosive charge. The effectiveness of these wraps as blast suppressing mediums was established by monitoring the blast pressure and sound levels. Although, a complete solution was not found within the performance requirements, materials such as vermiculite and cardboard were found to be particularly useful in suppressing blast overpressures. Plotted against scaled distance on a TNT output curve, the data indicates the effectiveness of these materials. Also practical are the plots showing the mitigation of blast pressure as the suppressant material thickness is varied.
- OSTI ID:
- 398354
- Report Number(s):
- CONF-9502142-; TRN: IM9649%%562
- Resource Relation:
- Conference: 11. annual symposium on explosives and blasting research, Nashville, TN (United States), 5-9 Feb 1995; Other Information: PBD: 1995; Related Information: Is Part Of Proceedings of the eleventh annual symposium on explosives and blasting research; PB: 348 p.
- Country of Publication:
- United States
- Language:
- English
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