With Delay Detonators:
Thread the detonator through the booster as shown in Figure 1. After assembly, the top and bottom faces may be taped for additional security against the detonator falling out especially in rough, angled blastholes. Lower the complete assembly to the desired location in the blasthole. Avoid walking on the signal tube or lead wires as this is likely to cause damage. In all applications, ensure that the primer is completely immersed in the explosive it is intended to initiate. This can be achieved by either pulling the primer up into the explosive or suspending the primer above the hole bottom during loading.
Large diameter packaged explosives should be lowered on top of primers, rather than dropped from the blasthole collar. The cord or tube downline should be kept taut during charging and stemming, to prevent damage and minimise abrasion. However, if a primer begins to float on top of a rising column of bulk explosive, temporarily slacken the downline. Once the surface of the explosive column has risen past the primer, tension can be reapplied to the downline.
With Detonating Cord:
Use Cast boosters with any detonating cord which has a PETN charge mass of 5.0 g/m or greater. Ensure the booster is securely attached to the detonating cord by passing the cord down through one tunnel. Tie the cord to form a loop, as shown in Figure 2, then lower the com- plete assembly to the desired location in the blasthole. Cut the detonating cord downline from its reel and adequately secure it at the blasthole collar. Charge the hole with explosives to the design level. For any subsequent boosters on the same downline, unfasten the detonating cord tail and thread the end of the cord through the straight walled tunnel. Re-secure the cord tail, at the collar, and slide or lower the booster to the desired location.
TECHNICAL DATA
PACKAGING
Export Packaging
Export Packaging
STORAGE & HANDLING
Cast boosters have a shelf life of 5 years in good storage conditions. These boosters should be stored in a cool, dry magazine licensed for 1.1D Explosives.
SHIPPING INFORMATION :
Authorised Name of Explosive : SOLARCAST-P
Proper Shipping Name : BOOSTERS, without detonator
Class / Div. : 1.1D
UN No. : 0042
