One major consideration when planning cable duct and trays is the bending radius, the bends must have smooth curves. Although conduits can still be used inside the building, so when a cable is pulled into a conduit, the conduit’s bending radius must be larger than the cable’s minimum bending radius for loaded conditions. Direct burial, aerial and blown fiber installations. Most common is the use of direct burial installations for long cross-country installations. The cables are plowed in or buried in
Copper wires are usually not used in high-tech automotive parts and semiconductors because of its inability to control electrical surges. Manufacturers and makers of semiconductors often use silver and gold wires in these applications because these metals are more stable when handling small amounts of electricity, ensuring no electrical surges destroy sensitive components. Electromagnetic Interference Copper wire is susceptible to electromagnetic interference, potentially leading to some devices working improperly. Applications that require connection
If it is cupped, sand it flat. If the floor is flat, fill if necessary and screen and recoat. If the subfloor is plywood over concrete, it is unlikely that the plywood and concrete subfloor will dry out in a reasonable time. Full removal to concrete usually is best to allow the slab to dry. In cases where you have determined that the flooring system has not returned to normal levels, do not succumb to pressure from involved parties for a quick fix.
To what extent to you agree with the view that the hazards resulting from earthquakes and volcanic activity cannot be managed but merely adapted to. Earthquakes and volcanic activity are both nature disasters that human can’t control when or where it will happen and it may cause lots of death and economic loss. There is no way that we can stop it from being happened but we can definitely try to adapt it by many different ways. Firstly, volcanoes are found at destructive and constructive plate margins. At destructive plate margins, the oceanic plate goes under the continental plate due to it’s more dense, which is a process known as subduction.
They can cause widespread destruction, such as the 1980 eruption of Mt St Helens. Lahars are a secondary effect of a volcanic eruption and are cement-like mudflows consisting of volcanic ash and water. They often occur in the days following an eruption when people are at their most vulnerable and with the capacity to travel up
I shall use examples of the Kobe Earthquake 1995, Boxing Day Tsunami 2004 and the Haiti Earthquake 2010. The earthquake of 2004 was caused by subduction of the Australian plate and the Eurasian Plate ,a 15-20m slip occurred along the fault line which then caused an earthquake measuring a 9.1 on the Richter scale. This a very high recording on the Richter scale so therefore it would always cause devastating hazards , but human factors could be seen as making the impacts far worse. The earthquake in the ocean had caused a tsunami to occur within the Indian Ocean. The wave reached up to 30 metres high causing devastation to the 13 countries surrounding the ocean.
This transfer allows quantifying the influence of blasting waves on the rock mass of the slope and on soil slopes. In this paper, the effects of waves’ frequency and Rayleigh’s surface waves are discussed as well as the slope characteristics such as its rock mass. Transfer of Analytical Techniques from Earthquake Engineering The similarity between blasting vibrations and earthquake motions is known. A simple example is the use of blasting-induced vibrations in experiments built to predict earthquake response of a building structure. According to Dowding (1988) two levels of analysis can be considered.
However, people were keeping complain about new technology. New technology would make them much safe than before. See what happened on 9/11 because that time, there was no new technology that they setting up at the checkpoint in the airport. Third reason article was wonderful point because TSA would protect them from the bomb in the airplane. That is why TSA setup new technology at the checkpoint.
Introduction: Saiveina Auto Open Straight Strong Umbrella is used to protect people from rain. This umbrella is waterproof and windproof due to the advance materials used to make this umbrella. This description will introduce functions and appearance of each part of the umbrella. This umbrella contains a shaft with straight handle, 16 ribs, and a dome shaped canopy. Figure 1: Overlook of the Saiveina Auto Open Straight Strong Umbrella 1.
The machine must be manufactured in a manner that while the required indicator lights, control switches and gauges will be placed on the panel cover; equipment like circuit breakers, switches, contactors, etc. inside the panels. • Motor supply cables used inside the panel must be selected in a manner that they will not heat up inside the panel with a proper section. • The live parts must be insulated against touching. • The cable channels must not be over-packed with cables and must be covered with lids.