Electric detonator assembly

Detonator Assemblies, Non-Electric for blasting Non-electric detonators assembled with and activated by such means as safety fuse, shock tube, flash tube or detonating cord. The[y] may be of instantaneous design or incorporate delay elements. Detonating relays incorporating... 

C02, etc. Then the vessel was sealed and the gas pumped in to desired pressure, which was as high as 1000 psi. For experiments at 1 atm, the vessel was pressurized to 100 psi, left for 5 mins, exhausted, repressurized and finally depressurized to 1 atm. After each firing (by means of an electric detonator), the steel "witness block placed on top of gap assembly was examined for the characteristic impression formed on it, which... 

Electric blasting caps (or electric blasting initiators) are described in Ref 44, pp B186-R to B186-L. Such caps are called "electric detonators" in Gt Britain. The type known as the "neoprene plug assembly" is described in Ref 36, pp 56-8 and Ref 38, pp 53-6 and is shown here in Fig 7. It consists... 

Type 92 Moored Controlled Mine was ellipsoidal in shape, 55 by 41.5 inches, filled with 1100 lbs of Type 88 Explosive. The combined control and mooring cable entered the mine thru the base plate. An electric detonator and booster assembly were bolted to the chge underneath the top cover plate. A microphone to detect the presence of ships was also provided (p 36,... 

Figure 98. U. S. Bureau of Mines Sand Test Bomb No. 1. (Courtesy U. S. Bureau of Mines.) At left, assembled for making the test. At right, disassembled showing the parts. Two covers, one with a single hole for miner s fuse, the other with two holes for the two wires of an electric detonator.

The sample vessel in the variable sample mass test is made of a thin polyethylene tube with a diameter of 23 mm. The bottom is closed by adhesive tape. The initiating explosive with a No.6 electric detonator and 0.6 g of PETN is inserted into the inner tube used in the variable initiator test. A sample vessel assembly is shown in Fig.3.138. 

A No.6 electric detonator is inserted into the inner tube, the sample vessel assembly is placed in the ballistic mortar bore, and the 2kg projectile is attached. The leg wire of the detonator is connected to the firing circuit, the charge is fired and the length of swing is measured. 

Detonating relays Detonator assemblies, non-electric, for blasting, I.IB, 1.4B, 1.4S... 

It consists of a casing fitted with a gasket, two suspension lugs, a hinge tube, an electric cable, two fuzes AN-M152A1 (described in Ref 51a, p 3-77), a burster (detonating cord), fin assembly M13 and arming wire assembly M23... 

Still another consideration is fires occurring in machine equipment such as electrical fires or lubricating oil fires in a fuze assembly machine. Here, primary consideration is the rapid detonation of the fire and deactivation of the equipment to prevent the continous machine operation which would cause the fire to intensify or propagate into a detonation. Fire fighting in this case, in the form of a water deluge system is the secondary action to extinguish the cause of the fire. 

Ionisation probes. The operating principle of the ionisation probes is based on the fact that detonation products behind the detonation front are highly ionised, which makes them capable of conducting electric current. Thus, the arrival of the detonation wave at an ionisation prote (vsiiich is actually an electrical switch) enables the closure of the electric circuit. That allows a capacitor to discharge, and the associated voltage signal is used to start/stop the counting assembly of the electric counter. 

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