Containers for the safe carrying and stocking of DETONATORS
TYPOLOGY OF DETONATORS
a) Electric Detonators
b) Fire Detonators
c) Nonel Detonators
d) Percussion Detonators
DETONATORS POWER SCALE
a) The Sellier-Bellot Scale (from n.1 to n.10)
b) The most commonly used detonators (n.8) are made up of 1 g of PENTRITE and 0,5 g of a mixture of LEAD AZIDE and LEAD STIFNATE
c) The energy produced as a result of the explosion of a detonator n.8 is: 1,5 kcal = 1,5 x 427 kgm = 640 kgm
EFFECTS GENERATED FROM THE EXPLOSION OF A DETONATOR
a) Mechanical (shock wave, projection of metal fragments, gas expansion)
b) Thermal (rising of temperature)
c) Acoustical
d) Luminous
TYPOLOGY OF STRESS THAT CAN CAUSE THE EXPLOSION OF A DETONATOR
| Mechanical Stress:
the BERTA Test 1) Mechanical shock 2) Explosive shock |
Pentrite 2kg - 30cm ≅ 5,9 joule Lead Azostifnate 2kg - 9cm ≅ 1,8 joule |
| Thermal shock:
temperature of explosion 1) Direct exposure to the source of heat 2) Electric energy |
1)Pentrite 215° C, Lead Azostifnate 257° C 2) Direct, electrostatic and induced currents |
| Mechanical Stress: |
shock wave gas expansion projection of fragmentse 2kg - 9cm ≅ 1,8 joule |
| Thermal shock:
|
the high temperature heat produced as a result of an explosion |