Description
Cordtex is a strong, flexible detonating cord with a nominal core charge of 10 g /m PETN. Cordtex consists of a continuous core of PETN powder encased by high strength textiles. This is covered by a seamless plastic jacket.
Cordtex will reliably initiate Primex, Powergel Boost and any other packaged explosives which are sensitive to 10 g/m detonating cord. Refer to the relevant explosives Technical Data Sheet for compatibility details.
Cordtex will not generally initiate primer-sensitive blasting agents, but in some circumstances desensitisation or side initiation can occur. Consequently the manufacturer or supplier should be consulted for specific recommendations in each situation.
Technical Properties
|
Colour |
White |
|
Tensile strength |
70 kgf |
|
VOD |
6.5 +/- 0.5 km/s |
|
Diameter |
3.8 to 5.0 mm |
Safety
Cordtex contains high explosives which must be handled with care and respect at all times. Cordtex can be initiated by intense impact or friction, but will not cause accidental initiation during normal handling and use below 1000 C.
Where Cordtex is used in hole, in hot ground, all holes must be temperature logged prior to loading to ensure adequate safety margins. IEL can assist in the assessment of risk, establish procedures and recommend suitable explosive components. Legislation covering blasting in hot conditions must be followed.
Application
Cordtex is suited for use as a surface trunkline, as it will reliably initiate itself through suitable knots and is compatible with Exel Millisecond Connectors (MSCs) & Delay Detonating Relays (DDRs). Refer to the Exel MSC & DDR Technical Data Sheet for application details.
Recommendation for use
Cordtex should only be cut using a single bladed cutter or a sharp knife on a non-ferrous block. Cordtex can be reliably initiated by a single no 6 Strength Detonator. The detonator should be firmly attached to the cord, with its base at least 150 mm from a dry cut end and pointing in the desired direction of propagation.
Cordtex surface trunklines should be laid out with no loops, kinks, tight bends or excessive slack. A closed loop of cord is recommended to provide insurance against poor connections. It should never be pulled off the reel over end flange, as this can cause kinks.
Packaging
Cordtex detonating cords are normally supplied in 4 reels of 250 m length each are packed inside a fibre board case.
Storage and Handling
Cordtex should be in a cool, dry, well-ventilated magazine licensed for Class 6 Div 2 explosives.(as per the Indian Explosives Rules)
Cordtex has a maximum shelf life of 24 months when stored correctly.
Trademarks
The word Orica, the Ring device and the Orica mark are trademarks of Orica Group Companies. Brand name Cordtex is a trademark of Indian Explosives Ltd, 10 A, Lee road, Kolkata-700020, India
Disclaimer
All information contained in this data sheet is accurate and up-to-date as at the issue date specified below. Since Indian Explosives Limited cannot anticipate or control the conditions under which this information and its products may be used;