College】 【weak professional sound engineering detailed construction plan (1) --- Power By China's weak home 【Network】.

<br> (a) the characteristics of engineering <BR> <BR> of professional sound engineering and technology are brought together multi-disciplinary knowledge of a top integrated technology, it is associated with professional audio technology and development. .Especially the audio and lighting equipment performance and quality increasing, the importance of professional audio engineering technology to become stronger, to make an analogy: professional audio works like a tailor in a garment cut, professional audio equipment like the clothes .fabric, what kind of fabric on the market anyone can buy, but the general fabric of good tailor can play its most important feature, make a good clothes; and even the best fabric showed a poor tailor, he also .can not make a nice dress. .Professional audio works is like this, the same cost, different design, quality will be high and low points; same equipment, different facilities, quality will be high and low points. .<BR> <BR> Summed up in sound engineering characteristics: small quantities, but the engineering and technical content; engineering flexibility, but the heavy responsibility. .To say that the workload of professional audio, line the technical staff know: a medium-sized project, goes well with a two hundred man-hours is sufficient; little large-scale projects will also be able to complete several hundred hours, so compared to other industries .The project is really small quantities. .But in this project is not actually contain a high technology content, the need for strict design and selection of qualified embedded need to wear tube technology; need for reliable welding technology; need for scientific testing means of debugging, etc. .flexibility to say the project is also a fact, sound engineering by objective factors is not too large, but rather the general user or decorative units to try to meet the requests sound engineering, but in these flexibilities in the great responsibility also included .Imagine; easily hundreds of thousands to millions of works you go to construction, or engineering if mainly the poor quality, or even leaving engineering problems, it should bear a responsibility to big. .<BR> <BR> (B) the requirements of engineering <BR> <BR> as a high technology content, assume greater responsibility in the professional sound engineering in the construction technology has special requirements. .First, we should have qualified construction team. .State works for the sound must be efficient and reliable, if not a qualified construction team, not only design can not be effectively implemented, and the construction quality is difficult to guarantee, in the only team there should be: relevant technology licensing .license electricians, welders and electronic technicians, and sound so far as is some experience in the construction of the staff, so the construction team to ensure the successful completion of projects. .Second, the works must be in strict accordance with the design. .<BR> <BR> States for sound engineering is a complex engineering design and construction techniques by the theory of the impact of large construction projects if the rule of thumb to act recklessly by imagination, is sure to bring bad consequences, and the design is .in the full understanding of the various information and conduct a series of calculations to complete, it must be the basis for the construction work. .Last is that Engineering must follow the corresponding technical specifications for construction. .Sound engineering in the construction will involve different types of work, the construction of these types of technical requirements and different security measures, only the serious implementation of these specifications in order to ensure that all the construction aspects of quality, to ensure the safety of construction workers, the specific .The technical details and notes, the author had "Audio Technology" magazine devoted been described, here without further analysis. .<BR> <BR> (C) the steps of construction, professional audio <BR> <BR> (1) First, the pipeline and attached to embedded parts. .Embedded pipeline and attached pieces of the project to determine the general need to be immediately after the start, because generally speaking, the main pipeline embedded structures in a stage where no, or no decoration dolphin wall in the ground, if not .embedded in time, it is likely to influence the progress of decoration, but must pay attention to the export pipeline is embedded must be co decoration department, or they may be due to mishandling of decorative appearance; hook embedded parts .position and lifting strength building and technical personnel must be recognized, or security can not be guaranteed, usually buried in the cement structure needed in the pipeline to choose better quality of steel, diameter cable according to the number worn to decide; through the roof ., decorative wall pipe, generally used in PVC trunking iron or fire, mainly threading convenient construction to accommodate a large amount of cable, but also fire; for the laying of long distance pipelines, must be set at a certain distance .access doors, the last must be noted that the work is almost embedded pipeline can not be changed, once you've decided where and how much buried, how to bury, and embedded after the completion, in order to change is unlikely, so pre- .buried before the design must be carefully analyzed, the number of specific equipment, location, power supply and control the situation, put forward on this basis, the exact line number, diameter and direction. .<BR> <BR> (2) Second, to conduct a variety of studio, frame welding and installation. .The work carried out as cross and decoration works, as is inevitable in the construction of a number of open holes and the decorations have been damaged, they need to help complete the decorating department, in the welding process, we must allow qualified workers with welding .operation, this means the safety requirements in addition to the main welding quality is directly related to the scaffolding lifting strength, can not be careless at the same time, because the welding construction and decoration works are usually the same time, the site will have some combustible material, .So be sure to pay attention to fire safety in construction, to be welded solid, paint is complete, you should begin the shelf installation, the installation of security is also very important, there must be a more adequate building and technical personnel to begin lifting the time; the last is, of all .mounting must be secure additional protective measures, such installations have a security guarantee. .<BR> <BR> (3) and then the following will be a variety of cable laying. .This work is a relatively simple, but it should also be seriously, in particular, to wear out of this one, can not tolerate a little sloppy, the laying of cables to grasp the moral and reasonable, for example, pipe wear and wear of the cable wire should be tied securely ., bar-head quest reduce the resistance, if necessary, apply a small amount of oil; followed by cable damage or disorder of the trouble; Furthermore, is the time to carefully lay the cable to check the cable, like the skin is broken, the shield is damaged .and the wire is broken and so on; Finally, we must do a good job in laying the cable was on the mark, in order to repair the installation of equipment and future use. .<BR> <BR> (4) and then should be followed by the installation of various equipment. .Equipment installation must be completed in the decoration, right after the laying of the cable, audio and lighting equipment for the country not only expensive, but many devices need to avoid contamination by dust, messy site decoration is not suitable for installation of equipment, equipment installation .It should be noted first of all to carefully check out of the box, because many of the packaging of foreign equipment is standardized, there are a number of important spare parts or instructions may be individually isolated in the bottom of the box, it is easy to unpacking the box together with the throw; followed by equipment .product before installation instructions should be read carefully in order to master the correct installation methods and procedures. .For example; light bulbs and many computers are required to wear cotton coated gloves, glass installation, are not allowed to touch with bare hands; the final equipment installation is to be strong, protective measures must be in place, especially the lighting equipment, set high, the weight of large and to .regular exercise, the general and the top of the stage or dance floor, so to be absolutely safe. .<BR> <BR> (5) Last is the power lines, control lines and signal lines connected. .This is a serious need for detailed and technical work, so should be skillful and strong sense of responsibility of personnel in the line of connection, the first way to ensure that the requirements under the state without electricity, because the audio and lighting equipment, power supply requirements .different, if the installation to provide power, not only poor security, and easy to damage the equipment; Secondly, the construction meet the requirements of electrical installation practices, because the electrical installation rules to test whether a reasonable standard way, so whether or not in accordance with standard construction, .to the quality of the project is completely different, many of the formal construction in accordance with standard engineering expert to see that job done, "beautiful"; Moreover, requiring a variety of connectors, a large variety of projects to be required .pairs, three-core, Lotus connector, XLR plugs, the number of multi-core non-party plug large, often need a few people while making a very long time to complete, do not know if the correct prior to soldering and welding connection method, can be thought .makes me know how much trouble back Qigong to be, so be sure to find out, for example: some European foot XLR audio products, and not the same as the number of general use, do not weld fault; some of the light shielding requirements of the control line high, .If welding is unreasonable, it is possible to produce light malfunction; last request line all the live, neutral, ground and shield connections must be accurate, the power supply, we should note that: sound and lighting .Some devices use the power to often cause misunderstandings, for example: Some devices use 110V AC, while the transformer is a separate plug-random, and if the connection line when it is forgotten, and directly plug the device's power supply is 220V ., the consequences can be imagined; another example: some of the same equipment using low pressure side AC, and some they use low-voltage DC, and their appearance is very similar to the plug, and if not careful, after power for those who cause the sound to light .RP-low consumption, reduced sound pressure, sound quality is bad consequences, but also easy to cause the device to live shell, leaving the security risks; <BR> <BR> speaking from the screen, the system capacity of the network interference, mainly on .the system is properly shielded and shielded those who do not work is, in serious cases will be damage to equipment, while the supply line phase error may affect the speaker's phase, which has the correct level of quality and screen, often found in a number of projects: .or no shield, or the formation of closed-loop shield; either the shielded cable connection error did not form the network can not resist interference shielding, and even some engineering and construction staff will signal to the zero power, ground, shielding these lines and signal lines .essentials confusion, random access, not only not anti-interference, but also bring a lot of interference, they must first actually put these concepts to understand clearly. .<BR> <BR> <BR> (6) The other is the installation, power lines, connecting the inspection. .Because the entire system is involved in sound engineering connection points and connectors are more likely when the installation causes an error because of the individual, so careful examination is necessary, the general safety check including equipment installation, power supply .lines are reasonable, the connectors is connected correctly, etc., there is another critical test items are: carefully check the status of each piece of equipment meets the design requirements set, this must not be forgotten, or easily result in equipment damage .These states include; amplifier in the bridge request, the bridge switch is set; each device's power switch is the right choice; lights or electronic control device is a voice; address code scanners are set correctly; projector input .settings, and more. .<BR> <BR> (7) steps to be more confident that the construction is completed, the equipment should be ready to debug. .For device debugging, as each project is different, it is difficult unity of a common approach, requires a separate discussion of classification, if it is to fully complete the engineering for all types of debugging are introduced, the size will be too large, only the following .commissioning of engineering equipment in general simply are introduced. .<BR>.