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Underwater blasting In underwater blasting using NONEL MS it is recommended that two detonators are used in each hole. The tubes from the detonators are connected to Îľclip 0 above the water surface, preferrably on floats of polystyrene or similar. To secure initiation in underwater blasting, the initiation should be done via 2 trunklines.

Underwater rounds may also be initiated by a 5 g/m detonating cord. A minimum of 5 to a maximum of 20 NONEL tubes are collected into a bunch and then taped together. The detonating cord is tied around the bunch with a clove hitch. Alternatively a bunch connector with SnapLine block can be used. See pages 35 and 37. The bunches should have a distance of at least 0.5 m between each other to avoid the risk of cutoffs of tubes.

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NONEL USERS MANUAL  

NONEL SYSTEM

NONEL USERS MANUAL  

NONEL SYSTEM

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