Explosives Components

Electric detonators

Explosives Manufacturing Industries markets special designed electric detonatorsallowing highly accurate and reliable explosions.

  • Correct use of delays contributes significantly to increasing the rock crushing and allows good control of ground shocks.
  • The detonator’s body is made of aluminum and contains a basic load of 0.8 gr P.E.T.N., which ensures good initiation of all types of explosives defined as sensitive to activation by a detonator.
  • The detonator’s extension cords are made of copper 0.51 mm and 0.70 mm diameter.
  • They are coated with an isolating material ensuring also good wear resistance.
  • The detonators are backed in cardboard boxes.
  • The detonators are waterproof and protected against static electricity.
  • On the detonator extension cords, there is a flag with the delay number. Each delay has a different color flag.
    Delay 0 = immediate detonator.

Benefits

  • Ensures better crushing of the rock.
  • The delay accuracy allows flexibility in planning the explosion and control over the shock level.
  • High resistance to water penetration (good waterproof).
  • Reliable activation of any mixture sensitive to a detonator
  • Good protection against static electrostatic discharge thanks to the protection on the match head.
  • High shelf life.
  • quarrying
  • mining
  • non-civilian-appliction

PROPERTieS

  • Overall behavior involves the resistance of the match head, which is (51.0+9) screw-nut and the extension cords’ resistance.
  • In detonators with conductors up to 10 m in length, the extension cords are folded in the form of the number 8.
  • In detonators with conductors longer than 10 m, the extension cords are wrapped on coils.

Extension cordsDiameter
(mm)
General resistance (screw-nut)Conductors' colorNo. of detonators in a box
Length mTypeDelay detonator
3Copper0.511.75Red/Yellow
5Copper0.511.7Red/Yellow40
7Copper0.512.1Red/Yellow20
10Copper0.512.6Red/Yellow15
20Copper0.512.8Red/Yellow10

Standard Technical Description

Recommended operation currents

Circle type
Operating current D.C
Operating Current AC
Single detonator 0.55 ampere 0.5
Tying in one column 1.35 ampere 2 ampere
Tying in a column, Number of columns in parallel 1.5 ampere/column 2 ampere/column
Tying in parallel 1 ampere/ minimum detonator  

 

 

Length of detonator mm
Delay time
Delay no.
78 -78.3 0 0
78 -78.3 25 1
78 -78.3 50 2
78 -78.3 75 3
78 -78.3 100 4
78 -78.3 125 5
78 -78.3 150 6
78 -78.3 175 7
78 -78.3 200 8
78 -78.3 225 9
78 -78.3 250 10
78 -78.3 275 11
78 -78.3 300 12
78 -78.3 325 13
78 -78.3 350 14
78 -78.3 375 15
78 -78.3 400 16
78 -78.3 425 17
78 -78.3 450 18
78 -78.3 475 19
78 -78.3 500 20
78 -78.3 550 21
78 -78.3 600 22
78 -78.3 650 23
78 -78.3 700 24
78 -78.3 750 25
78 -78.3 800 26
78 -78.3 850 27
78 -78.3 900 28
78 -78.3 950 29
78 -78.3 1000 30

 

Thread length
3 5 7 10 20

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