How is det cord initiated?

Detonating cord is initiated by a blasting cap. When initiated, it will explode over an entire length and detonate any properly connected demolition material.

How much does a cratering charge weigh?

The cratering charge is 39 lbs of Comp H6 explosive fill housed in tin plated steel. The Army version does not have a booster charge. The Marine Corps and Navy version of the cratering charge has a Comp A-5 booster. This explosive replacement effort focuses on the Army version, without a booster.

How many grains are in a blasting cap?

Most popular loads are 25, 40, or 50 grains. Detonating cord resembles safety fuse in appearance.

What explosive is in a blasting cap?

1. Fuse caps contain explosives like mercury fulminate, lead azide, and lead styphnate. Fuse caps are usually small metal tubes 1” – 2” in length and approximately ¼” in diameter. Fuse caps can detonate if subjected to heat, shock, or static electricity.

Can you burn det cord?

It is a high-speed fuse which explodes, rather than burns, and is suitable for detonating high explosives.

How fast does det cord explode?

As a timing mechanism, detonation cord detonates at a very reliable rate (about 6,000–7,000 m/s or 23,000–26,000 ft/s), enabling engineers to control the pattern in which charges are detonated.

What is a cratering charge?

A charge placed at an adequate depth to produce a crater. Dictionary of Military and Associated Terms.

How many volts does it take to set off a blasting cap?

Electric blasting caps can be fired from a 11/2 volt flashlight cell. It would be desirable to increase this voltage requirement to reduce the susceptibility of the cap to be prematurely initiated by extraneous electricity.

Why did coal miners bite blasting caps?

They also helped to regulate the timing of the explosion and allow time for the miners to leave the area. Black powder fuses are difficult to control, so using blasting caps was a safer way to blast rock.

How fast does Primacord burn?

Primacord is initiated with a blasting cap or by a donor line of detonating cord or other high explosive. It detonates along its entire length at a velocity of approximately 23,000 feet (7,000 meters) per second.

What cratering means?

intransitive verb. 1 : to exhibit or form craters. 2 : to fail or fall suddenly and dramatically : collapse, crash the deal cratered cratering stock prices. transitive verb. : to form craters in.

Can a detonator explode?

Instead of heating up the explosive, the EBW detonator wire is heated so quickly by the high firing current that the wire actually vaporizes and explodes due to electric resistance heating. That electrically driven explosion then fires the detonator’s initiator explosive (usually PETN).

How much does a pound of dynamite cost?

It suggests TNT was $0.44 per pound, or around $5.20 per pound in 2014. These estimates are consistent with that of a Quora commenter.

How sensitive is a blasting cap?

8 strength blasting cap (i.e., high explosives are 1. Straight Dynamite – Nitroglycerin in an absorbent, with velocities between 10,000 and 20,000 feet per second. This dynamite is the most sensitive of all commercial explosives. The weight strength is the actual percentage of nitroglycerin in the cartridge.

What is the standard cable length for the Unidrive M700?

***Shielded RS485 patch cable, CAT5e, conductive metal RJ45 connectors, XXX=cable length in 5 foot increments (max 330 ft), standard lengths are (005, 010, 015, 025 and 050) ****See Unidrive M700 Brochure for complete product details

What are the power ratings of the m700/m701?

RATINGS & DIMENSIONS Ratings Heavy Duty rating: 1.0 HP to 4,200 HP (0.75 kW to 2.8 MW) Normal Duty rating: 1.5 HP to 4,200 HP (1.0 kW to 2.8 MW) Control connections: M700/M701 models 3 x Analog inputs, 3 x Digital inputs, 2 x Analog outputs, 3 x Digital I/O,

What kind of AC drive does the M700 have?

WITH REAL-TIME ETHERNET UNIDRIVE M700 UNIDRIVE M700 HIGH-PERFORMANCE AC DRIVES WWW.CONTROLTECHNIQUES.COM A P R O V

Why Unidrive M700 for machine builders?

INCLUDED Unidrive M700 delivers maximum machine throughput through greater control with single and multi-axis network synchronization. Onboard real-time Ethernet (IEEE 1588 V2), advanced motion control and high speed I/O for position capture enables machine builders to easily create