About the Product
Detonating cords are mainly used for initiation of the cap sensitive explosives, surface connection of the non-electric detonators, and for special applications like presplitting or smooth blasting. It is a flexible cord containing a core of highly sensitive PETN(PentaerythritolTetranitrate) explosive which is covered with textile and waterproof PVC layers. When initiated, it detonates with a speed of approximately 6300 – 7000 m/s. Velocity of detonation increases with the amount of explosive at the core. Depending on the field of use, detonating cords are classified according to amount of PETN for each meter (5 – 80 gram).Usually 10 gram detonating cords are used for initiating the cap sensitive explosives.
Product Features
- The protective layer around the cord protects it against ali adverse physical conditions which might be encountered in a blasting environment, provides excellent tensile strength, protection against stretching, friction, water, oil and extreme temperatures.
- Detonating cords provides safe working environment in weather conditions under which it might be dangerous to use electrical detonators.
- Not affected from static electricity, not sensitive to friction and impacts.
- it is a suitable choice for multiple priming along charge column in large diameter and deep blastholes.
- lnfinite number of delay times can be applied using special surface relay elements.
Ignition Information
Detonating cords should not be transported together withthedetonators. They can be used directly for initiating the primer, one end should be inserted into the primer and the cord should be coiled and tied a round the primer. Always cut the detonating cord with a sharp knife. Never attempt to cut the cord with ablow from a hard object such as a spade, axe and stone. The core of the explosive inside the cord is sensitive to impact and friction by blind objects and it may detonate accidently. Cord should not be cut using tools with metal to metal contact such asscissors or wire cutters. Open end of the cord should be protected from water and oil and any connection should be made at least 15cm away from the openend. Ensure that there are no loops, kinks and severe bends in the cord which can cause gaps in the explosive core and lead to misfires. While connecting a detonator to a cord it should be fırmly in contact with the cord and explosive end of the detonator should be in the direction of propagation. Cord lines should not be overlapped or crossed over each other, all connection points should be at wide angles; acute angles may cause mlsfires. Ensure every blasthole has two paths of initiation, this prevents cut offs due to ground movements of lying rocks.
Packaging Description
Detonating cords are coiled in spools at different lengths according to their diameters and put into card board boxes.
Technical Specifications
| CoreLoad | TensileStrength | OuterDameter | Cord Color |
| 5gr/m | 5Okg | 3.6mm | White |
| 10gr/m | 5Okg | 4.4mm | Blue |
| 40gr/m | 60kg | 8.0mm | Blue |
| 80gr/m | 60kg | 11.0mm | Blue |
Shipping Information
| UN Name | Detonating Cord |
|---|---|
| UN No | 0065/ IMDG:1.1 D |
Storage Conditions
It should be stored according to regulations (87/12028) in a dry and well-ventilated magazines and should not be exposed to direct sunlight.
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