青白江某大型商场供配电设计
本论文系统的阐述了青白江某大型商场各电气设计的设计依据、原则、方法和结论。本次设计包括供配电、照明、电视监控、防雷接地、火灾自动报警系统等，电视、电话、网络作预留，其出线及配置由下一次装修完成。首先，在高压供配电系统设计中，采用放射式系统，以增强其供电可靠性与控制的灵活性，并确定配电电压为630V与配电网络结构；进行配电干线负荷计算，选择一台500KVA干式变压器；选择高压电缆截面、型式、配电干线路径与敷设方式。其次，在低压配电系统设计中，确定竖直配电干线与水平配电干线的个数，位置与走向；进行负荷计算，按每平米80瓦计算；选择开关设备及导线、电缆、封闭式母线的截面与形式；选择保护装置，进行低压无功补偿容量计算；保护接地、重复接地系统的设计，确定采用TN-C-S接地系统。再次，在自动火灾报警系统设计中，每层一个回路，提高精确度，当火灾信号确认后，能够启动喷淋泵、广播报警系统；强制启动应急照明、切断非消防电源、自动扶梯停运并作应急通道使用。最后，在防雷接地系统中，根据国家规范，通过计算，采用三类防雷，并按照三类防雷建筑要求设计。
我的翻译如下：
The Power Design of One Large Store of Qingbaijiang
The paper described all electrical design criterion, principle, method and conclusions of one large store of Qingbaijiang systematically. The design includes distribution, lighting, television monitoring, lightningproof grounding and automatic fire alarm systems,but television, telephone and Internet are reserved to be completed next time. Firstly, about the system design of high voltage power supply ,using radiation type system to enhance its power supply reliability and flexibility and determine control of the distribution voltage distribution network for 630V and structure; For power distribution lines, choose a load calculation 500KVA dry type transformer; also choose high-voltage cables, section, type, distribution route and installation. Secondly, in the system design of low voltage distribution , confirm the numbers, positions and routes of vertical distribution of the trunk and level distribution. For load calculation depends 80 watts per square meter computation; Selected switch equipment and wire, cable, enclosed bus with form and the forms; Choosing protection device, calculate the capacity under low voltage reactive compensation; Under the system design of protecting the grounding and repeating the grounding, make sure to use TN - C - S grounding system. Third, in the automatic fire alarm system design which makes each layer have a loop and improves the accuracy, so when fire signal is confirmed, it can start the spray pump and radio alarm system; Start emergency lighting compulsively, cut off the fire power lines, make the escalators and emergency channel use. Finally, in lightningproof grounding system, according to the national standard, through calculation, using three categories, according to the three lightning lightning architectural requirements design.
老师说有很多毛病，我不知道怎么改，请教下！
青白江某大型商场供配电设计
A large market for distribution of qingbaijiang design
本论文系统的阐述了青白江某大型商场各电气设计的设计依据、原则、方法和结论。
This paper expounds the system of one big mall each qingbaijiang electrical design design basis, principles, methods and conclusion.
本次设计包括供配电、照明、电视监控、防雷接地、火灾自动报警系统等，电视、电话、网络作预留，其出线及配置由下一次装修完成。
This design including power supply, lighting, television monitoring, lightningproof grounding, automatic fire alarm system and so on, television, telephone, Internet for the qualification and configuration, reserved by the next finish. Decorate
首先，在高压供配电系统设计中，采用放射式系统，以增强其供电可靠性与控制的灵活性，并确定配电电压为630V与配电网络结构；
First of all, in the high voltage power supply system design, the radiation type system, in order to enhance its power supply reliability and flexibility of the control, and determined the distribution voltage for 630 V and distribution network structure;
进行配电干线负荷计算，选择一台500KVA干式变压器；
For distribution route choice load calculation, a 500 KVA transformer;
选择高压电缆截面、型式、配电干线路径与敷设方式。
Choose high voltage cables section, and the type, distribution main route and installation.
其次，在低压配电系统设计中，确定竖直配电干线与水平配电干线的个数，位置与走向；
Secondly, in the low voltage distribution system design, determine the vertical distribution of the main trunk and level distribution number, position and to;
进行负荷计算，按每平米80瓦计算；
To load calculation, 80 watts per square meters computation;
选择开关设备及导线、电缆、封闭式母线的截面与形式；
Selected switch equipment and wire, cable, enclosed bus bar of the section and form;
选择保护装置，进行低压无功补偿容量计算；
Choose protection device, low voltage reactive compensation capacity computing;
保护接地、重复接地系统的设计，确定采用TN-C-S接地系统。
Protect the grounding and repeat of the grounding system design, sure to use TN-C-S grounding system.
再次，在自动火灾报警系统设计中，每层一个回路，提高精确度，当火灾信号确认后，能够启动喷淋泵、广播报警系统；
Again, in the automatic fire alarm system design, each layer of a loop, and improve the accuracy, when fire signal confirmation, to start the spray pump, radio alarm system;
强制启动应急照明、切断非消防电源、自动扶梯停运并作应急通道使用。
Mandatory start emergency lighting, cut off the power supply, fire and emergency service escalator channel use.
最后，在防雷接地系统中，根据国家规范，通过计算，采用三类防雷，并按照三类防雷建筑要求设计。
Finally, in the lightningproof grounding system, according to the national standard, through calculation, using three kinds of lightning protection, and according to the three kinds of lightning protection architectural requirements design.
A large market for distribution of qingbaijiang design
本论文系统的阐述了青白江某大型商场各电气设计的设计依据、原则、方法和结论。
This paper expounds the system of one big mall each qingbaijiang electrical design design basis, principles, methods and conclusion.
本次设计包括供配电、照明、电视监控、防雷接地、火灾自动报警系统等，电视、电话、网络作预留，其出线及配置由下一次装修完成。
This design including power supply, lighting, television monitoring, lightningproof grounding, automatic fire alarm system and so on, television, telephone, Internet for the qualification and configuration, reserved by the next finish. Decorate
首先，在高压供配电系统设计中，采用放射式系统，以增强其供电可靠性与控制的灵活性，并确定配电电压为630V与配电网络结构；
First of all, in the high voltage power supply system design, the radiation type system, in order to enhance its power supply reliability and flexibility of the control, and determined the distribution voltage for 630 V and distribution network structure;
进行配电干线负荷计算，选择一台500KVA干式变压器；
For distribution route choice load calculation, a 500 KVA transformer;
选择高压电缆截面、型式、配电干线路径与敷设方式。
Choose high voltage cables section, and the type, distribution main route and installation.
其次，在低压配电系统设计中，确定竖直配电干线与水平配电干线的个数，位置与走向；
Secondly, in the low voltage distribution system design, determine the vertical distribution of the main trunk and level distribution number, position and to;
进行负荷计算，按每平米80瓦计算；
To load calculation, 80 watts per square meters computation;
选择开关设备及导线、电缆、封闭式母线的截面与形式；
Selected switch equipment and wire, cable, enclosed bus bar of the section and form;
选择保护装置，进行低压无功补偿容量计算；
Choose protection device, low voltage reactive compensation capacity computing;
保护接地、重复接地系统的设计，确定采用TN-C-S接地系统。
Protect the grounding and repeat of the grounding system design, sure to use TN-C-S grounding system.
再次，在自动火灾报警系统设计中，每层一个回路，提高精确度，当火灾信号确认后，能够启动喷淋泵、广播报警系统；
Again, in the automatic fire alarm system design, each layer of a loop, and improve the accuracy, when fire signal confirmation, to start the spray pump, radio alarm system;
强制启动应急照明、切断非消防电源、自动扶梯停运并作应急通道使用。
Mandatory start emergency lighting, cut off the power supply, fire and emergency service escalator channel use.
最后，在防雷接地系统中，根据国家规范，通过计算，采用三类防雷，并按照三类防雷建筑要求设计。
Finally, in the lightningproof grounding system, according to the national standard, through calculation, using three kinds of lightning protection, and according to the three kinds of lightning protection architectural requirements design.
温馨提示：答案为网友推荐，仅供参考
第1个回答 2011-06-16
A large market for distribution of qingbaijiang design
This paper expounds the system of one big mall each qingbaijiang electrical design design basis, principles, methods and conclusion. This design including power supply, lighting, television monitoring, lightningproof grounding, automatic fire alarm system and so on, television, telephone, Internet for the qualification and configuration, reserved by the next finish. Decorate First of all, in the high voltage power supply system design, the radiation type system, in order to enhance its power supply reliability and flexibility of the control, and determined the distribution voltage for 630 V and distribution network structure; For distribution route choice load calculation, a 500 KVA transformer; Choose high voltage cables section, and the type, distribution main route and installation. Secondly, in the low voltage distribution system design, determine the vertical distribution of the main trunk and level distribution number, position and to; To load calculation, 80 watts per square meters computation; Selected switch equipment and wire, cable, enclosed bus bar of the section and form; Choose protection device, low voltage reactive compensation capacity computing; Protect the grounding and repeat of the grounding system design, sure to use TN-C-S grounding system. Again, in the automatic fire alarm system design, each layer of a loop, and improve the accuracy, when fire signal confirmation, to start the spray pump, radio alarm system; Mandatory start emergency lighting, cut off the power supply, fire and emergency service escalator channel use. Finally, in the lightningproof grounding system, according to the national standard, through calculation, using three kinds of lightning protection, and according to the three kinds of lightning protection architectural requirements design.追问
This paper expounds the system of one big mall each qingbaijiang electrical design design basis, principles, methods and conclusion. This design including power supply, lighting, television monitoring, lightningproof grounding, automatic fire alarm system and so on, television, telephone, Internet for the qualification and configuration, reserved by the next finish. Decorate First of all, in the high voltage power supply system design, the radiation type system, in order to enhance its power supply reliability and flexibility of the control, and determined the distribution voltage for 630 V and distribution network structure; For distribution route choice load calculation, a 500 KVA transformer; Choose high voltage cables section, and the type, distribution main route and installation. Secondly, in the low voltage distribution system design, determine the vertical distribution of the main trunk and level distribution number, position and to; To load calculation, 80 watts per square meters computation; Selected switch equipment and wire, cable, enclosed bus bar of the section and form; Choose protection device, low voltage reactive compensation capacity computing; Protect the grounding and repeat of the grounding system design, sure to use TN-C-S grounding system. Again, in the automatic fire alarm system design, each layer of a loop, and improve the accuracy, when fire signal confirmation, to start the spray pump, radio alarm system; Mandatory start emergency lighting, cut off the power supply, fire and emergency service escalator channel use. Finally, in the lightningproof grounding system, according to the national standard, through calculation, using three kinds of lightning protection, and according to the three kinds of lightning protection architectural requirements design.追问
论文不能翻译为paper，应该为article！谢谢你，请再帮忙！
追答理论上你是对的，呵，你再看看
第2个回答 2011-06-16
Qingbaijiang power distribution design for a large mall
This paper describes the system at a large mall Qingbaijiang the design of the electrical design based on principles, methods and conclusions. The design includes power supply, lighting, TV monitoring, lightning protection and grounding, fire alarm systems, TV, telephone, network be set aside, its configuration from the next outlet and renovations are completed. First, the design of high-voltage power supply system, the use of radiation systems, to enhance its reliability and control flexibility, and to determine the distribution voltage is 630V and the power distribution network; the distribution main load calculation, select a 500KVA dry-type transformers; choose high voltage cable cross-section, type, path and laying distribution main ways. Secondly, in the low-voltage distribution system design, determine the vertical and horizontal distribution main distribution main number, location and direction; the load calculation, 80-watt per square meter; selector switch equipment and wire, cable, closed busbar cross-section and form; choose protection, low voltage reactive power compensation capacity calculation; protection grounding, grounding system design repeated to determine the use of TN-CS earthing system. Again, the automatic fire alarm system design, each a loop to improve accuracy, when the fire signal is confirmed, to start the spray pump, radio, alarm system; force launched the emergency lighting, cut off the non-fire power, and escalator outage channel for emergency use. Finally, the lightning grounding system, according to national norms, by calculating, using three types of lightning, and lightning protection building requirements in accordance with three types of design.
This paper describes the system at a large mall Qingbaijiang the design of the electrical design based on principles, methods and conclusions. The design includes power supply, lighting, TV monitoring, lightning protection and grounding, fire alarm systems, TV, telephone, network be set aside, its configuration from the next outlet and renovations are completed. First, the design of high-voltage power supply system, the use of radiation systems, to enhance its reliability and control flexibility, and to determine the distribution voltage is 630V and the power distribution network; the distribution main load calculation, select a 500KVA dry-type transformers; choose high voltage cable cross-section, type, path and laying distribution main ways. Secondly, in the low-voltage distribution system design, determine the vertical and horizontal distribution main distribution main number, location and direction; the load calculation, 80-watt per square meter; selector switch equipment and wire, cable, closed busbar cross-section and form; choose protection, low voltage reactive power compensation capacity calculation; protection grounding, grounding system design repeated to determine the use of TN-CS earthing system. Again, the automatic fire alarm system design, each a loop to improve accuracy, when the fire signal is confirmed, to start the spray pump, radio, alarm system; force launched the emergency lighting, cut off the non-fire power, and escalator outage channel for emergency use. Finally, the lightning grounding system, according to national norms, by calculating, using three types of lightning, and lightning protection building requirements in accordance with three types of design.
第3个回答 2011-06-16
This article describes the system at a large mall Qingbaijiang the design of the electrical design based on principles, methods and conclusions. The design includes power supply, lighting, TV monitoring, lightning protection and grounding, fire alarm systems, TV, telephone, network be set aside, its configuration from the next outlet and renovations are completed. First, the design of high-voltage power supply system, the use of radiation systems, to enhance its reliability and control flexibility, and to determine the distribution voltage is 630V and the power distribution network; the distribution main load calculation, select a 500KVA dry-type transformers; choose high voltage cable cross-section, type, path and laying distribution main ways. Secondly, in the low-voltage distribution system design, determine the vertical and horizontal distribution main distribution main number, location and direction; the load calculation, 80-watt per square meter; selector switch equipment and wire, cable, closed busbar cross-section and form; choose protection, low voltage reactive power compensation capacity calculation; protection grounding, grounding system design repeated to determine the use of TN-CS earthing system. Again, the automatic fire alarm system design, each a loop to improve accuracy, when the fire signal is confirmed, to start the spray pump, radio, alarm system; force launched the emergency lighting, cut off the non-fire power, and escalator outage channel for emergency use. Finally, the lightning grounding system, according to national norms, by calculating, using three types of lightning, and lightning protection building requirements in accordance with three types of design.
第4个回答 2011-06-17
老师不给你过关是因为你的描述有点混乱；如果在原文上修改，难度不小。因此，我还是重新给你翻译，供你对照参考。
青白江某大型商场供配电设计
The Design of Power Distribution System for a Large Departmental Store in QingbaiJiang.
本论文系统的阐述了青白江某大型商场各电气设计的设计依据、原则、方法和结论。本次设计包括供配电、照明、电视监控、防雷接地、火灾自动报警系统等，电视、电话、网络作预留，其出线及配置由下一次装修完成。
This article systematically illustrates the design basis, principles, method and conclusion of the various electrical designs for a large departmental store in Qingbaijiang. The design includes power distribution, lightings, TV surveillance, grounding for lightning protection, automatic fire alarm systems; allocation has been reserved for televisions, telephones and the internet, their wirings and dispositions will be completed in the following renovation.
首先，在高压供配电系统设计中，采用放射式系统，以增强其供电可靠性与控制的灵活性，并确定配电电压为630V与配电网络结构；进行配电干线负荷计算，选择一台500KVA干式变压器；选择高压电缆截面、型式、配电干线路径与敷设方式。
Firstly, the radiation type system will be adopted for the design of high-voltage power supply and distribution system; this is to enhance the reliability and flexibility of the power supply. A 630V distribution voltage has been determined for the distribution network structure and a 500 kVA dry-type transformer is selected after conducting calculations on the power load for the distribution main. Then, selection is carried out on the high-voltage cable cross-section, cable type, the laying route of the distribution main and the installation method.
其次，在低压配电系统设计中，确定竖直配电干线与水平配电干线的个数，位置与走向；进行负荷计算，按每平米80瓦计算；选择开关设备及导线、电缆、封闭式母线的截面与形式；选择保护装置，进行低压无功补偿容量计算；保护接地、重复接地系统的设计，确定采用TN-C-S接地系统。
Secondly, in the design of the low-voltage distribution system, the quantity, location and direction of both the vertical and horizontal distribution main lines shall be determined; load calculations based on 80 watts per square meter will be carried out to determine the selections for the switchgear and conducting wire, power cables, the cross-section and form of the isolated bus bars; low-voltage reactive compensation capacity is calculated to select the protective device and the TN-C-S grounding system is adopted for the design of the protective and repetitive grounding system.
再次，在自动火灾报警系统设计中，每层一个回路，提高精确度，当火灾信号确认后，能够启动喷淋泵、广播报警系统；强制启动应急照明、切断非消防电源、自动扶梯停运并作应急通道使用。最后，在防雷接地系统中，根据国家规范，通过计算，采用三类防雷，并按照三类防雷建筑要求设计。
Thirdly, in the design of the automatic fire alarm system, there will be one return circuit fir every floor to enhance accuracy; so that when the automatic fire signal is confirmed, the spray pump and the public address alarm system will be activated; the emergency lightings will be forced started, non-fire fighting power supply disconnected, escalators will be stopped and become emergency escape paths.
Finally, category 3 is adopted for the grounding of lightning protection after calculation in accordance with the national regulations, so the design code for category 3 lightning protection of buildings will be applied for the grounding design.
注：kVA 的k 应该用小号。
【英语牛人团】
青白江某大型商场供配电设计
The Design of Power Distribution System for a Large Departmental Store in QingbaiJiang.
本论文系统的阐述了青白江某大型商场各电气设计的设计依据、原则、方法和结论。本次设计包括供配电、照明、电视监控、防雷接地、火灾自动报警系统等，电视、电话、网络作预留，其出线及配置由下一次装修完成。
This article systematically illustrates the design basis, principles, method and conclusion of the various electrical designs for a large departmental store in Qingbaijiang. The design includes power distribution, lightings, TV surveillance, grounding for lightning protection, automatic fire alarm systems; allocation has been reserved for televisions, telephones and the internet, their wirings and dispositions will be completed in the following renovation.
首先，在高压供配电系统设计中，采用放射式系统，以增强其供电可靠性与控制的灵活性，并确定配电电压为630V与配电网络结构；进行配电干线负荷计算，选择一台500KVA干式变压器；选择高压电缆截面、型式、配电干线路径与敷设方式。
Firstly, the radiation type system will be adopted for the design of high-voltage power supply and distribution system; this is to enhance the reliability and flexibility of the power supply. A 630V distribution voltage has been determined for the distribution network structure and a 500 kVA dry-type transformer is selected after conducting calculations on the power load for the distribution main. Then, selection is carried out on the high-voltage cable cross-section, cable type, the laying route of the distribution main and the installation method.
其次，在低压配电系统设计中，确定竖直配电干线与水平配电干线的个数，位置与走向；进行负荷计算，按每平米80瓦计算；选择开关设备及导线、电缆、封闭式母线的截面与形式；选择保护装置，进行低压无功补偿容量计算；保护接地、重复接地系统的设计，确定采用TN-C-S接地系统。
Secondly, in the design of the low-voltage distribution system, the quantity, location and direction of both the vertical and horizontal distribution main lines shall be determined; load calculations based on 80 watts per square meter will be carried out to determine the selections for the switchgear and conducting wire, power cables, the cross-section and form of the isolated bus bars; low-voltage reactive compensation capacity is calculated to select the protective device and the TN-C-S grounding system is adopted for the design of the protective and repetitive grounding system.
再次，在自动火灾报警系统设计中，每层一个回路，提高精确度，当火灾信号确认后，能够启动喷淋泵、广播报警系统；强制启动应急照明、切断非消防电源、自动扶梯停运并作应急通道使用。最后，在防雷接地系统中，根据国家规范，通过计算，采用三类防雷，并按照三类防雷建筑要求设计。
Thirdly, in the design of the automatic fire alarm system, there will be one return circuit fir every floor to enhance accuracy; so that when the automatic fire signal is confirmed, the spray pump and the public address alarm system will be activated; the emergency lightings will be forced started, non-fire fighting power supply disconnected, escalators will be stopped and become emergency escape paths.
Finally, category 3 is adopted for the grounding of lightning protection after calculation in accordance with the national regulations, so the design code for category 3 lightning protection of buildings will be applied for the grounding design.
注：kVA 的k 应该用小号。
【英语牛人团】
第5个回答 2011-06-19
我的翻译是A large market for distribution of qingbaijiang design
This paper expounds the system of one big mall each qingbaijiang electrical design design basis, principles, methods and conclusion. This design including power supply, lighting, television monitoring, lightningproof grounding, automatic fire alarm system and so on, television, telephone, Internet for the qualification and configuration, reserved by the next finish. Decorate First of all, in the high voltage power supply system design, the radiation type system, in order to enhance its power supply reliability and flexibility of the control, and determined the distribution voltage for 630 V and distribution network structure; For distribution route choice load calculation, a 500 KVA transformer; Choose high voltage cables section, and the type, distribution main route and installation. Secondly, in the low voltage distribution system design, determine the vertical distribution of the main trunk and level distribution number, position and to; To load calculation, 80 watts per square meters computation; Selected switch equipment and wire, cable, enclosed bus bar of the section and form; Choose protection device, low voltage reactive compensation capacity computing; Protect the grounding and repeat of the grounding system design, sure to use TN-C-S grounding system. Again, in the automatic fire alarm system design, each layer of a loop, and improve the accuracy, when fire signal confirmation, to start the spray pump, radio alarm system; Mandatory start emergency lighting, cut off the power supply, fire and emergency service escalator channel use. Finally, in the lightningproof grounding system, according to the national standard, through calculation, using three kinds of lightning protection, and according to the three kinds of lightning protection architectural requirements design.
或青白江某大型商场供配电设计
The Design of Power Distribution System for a Large Departmental Store in QingbaiJiang.
本论文系统的阐述了青白江某大型商场各电气设计的设计依据、原则、方法和结论。本次设计包括供配电、照明、电视监控、防雷接地、火灾自动报警系统等，电视、电话、网络作预留，其出线及配置由下一次装修完成。
This article systematically illustrates the design basis, principles, method and conclusion of the various electrical designs for a large departmental store in Qingbaijiang. The design includes power distribution, lightings, TV surveillance, grounding for lightning protection, automatic fire alarm systems; allocation has been reserved for televisions, telephones and the internet, their wirings and dispositions will be completed in the following renovation.
首先，在高压供配电系统设计中，采用放射式系统，以增强其供电可靠性与控制的灵活性，并确定配电电压为630V与配电网络结构；进行配电干线负荷计算，选择一台500KVA干式变压器；选择高压电缆截面、型式、配电干线路径与敷设方式。
Firstly, the radiation type system will be adopted for the design of high-voltage power supply and distribution system; this is to enhance the reliability and flexibility of the power supply. A 630V distribution voltage has been determined for the distribution network structure and a 500 kVA dry-type transformer is selected after conducting calculations on the power load for the distribution main. Then, selection is carried out on the high-voltage cable cross-section, cable type, the laying route of the distribution main and the installation method.
其次，在低压配电系统设计中，确定竖直配电干线与水平配电干线的个数，位置与走向；进行负荷计算，按每平米80瓦计算；选择开关设备及导线、电缆、封闭式母线的截面与形式；选择保护装置，进行低压无功补偿容量计算；保护接地、重复接地系统的设计，确定采用TN-C-S接地系统。
Secondly, in the design of the low-voltage distribution system, the quantity, location and direction of both the vertical and horizontal distribution main lines shall be determined; load calculations based on 80 watts per square meter will be carried out to determine the selections for the switchgear and conducting wire, power cables, the cross-section and form of the isolated bus bars; low-voltage reactive compensation capacity is calculated to select the protective device and the TN-C-S grounding system is adopted for the design of the protective and repetitive grounding system.
再次，在自动火灾报警系统设计中，每层一个回路，提高精确度，当火灾信号确认后，能够启动喷淋泵、广播报警系统；强制启动应急照明、切断非消防电源、自动扶梯停运并作应急通道使用。最后，在防雷接地系统中，根据国家规范，通过计算，采用三类防雷，并按照三类防雷建筑要求设计。
Thirdly, in the design of the automatic fire alarm system, there will be one return circuit fir every floor to enhance accuracy; so that when the automatic fire signal is confirmed, the spray pump and the public address alarm system will be activated; the emergency lightings will be forced started, non-fire fighting power supply disconnected, escalators will be stopped and become emergency escape paths.
Finally, category 3 is adopted for the grounding of lightning protection after calculation in accordance with the national regulations, so the design code for category 3 lightning protection of buildings will be applied for the grounding design.
This paper expounds the system of one big mall each qingbaijiang electrical design design basis, principles, methods and conclusion. This design including power supply, lighting, television monitoring, lightningproof grounding, automatic fire alarm system and so on, television, telephone, Internet for the qualification and configuration, reserved by the next finish. Decorate First of all, in the high voltage power supply system design, the radiation type system, in order to enhance its power supply reliability and flexibility of the control, and determined the distribution voltage for 630 V and distribution network structure; For distribution route choice load calculation, a 500 KVA transformer; Choose high voltage cables section, and the type, distribution main route and installation. Secondly, in the low voltage distribution system design, determine the vertical distribution of the main trunk and level distribution number, position and to; To load calculation, 80 watts per square meters computation; Selected switch equipment and wire, cable, enclosed bus bar of the section and form; Choose protection device, low voltage reactive compensation capacity computing; Protect the grounding and repeat of the grounding system design, sure to use TN-C-S grounding system. Again, in the automatic fire alarm system design, each layer of a loop, and improve the accuracy, when fire signal confirmation, to start the spray pump, radio alarm system; Mandatory start emergency lighting, cut off the power supply, fire and emergency service escalator channel use. Finally, in the lightningproof grounding system, according to the national standard, through calculation, using three kinds of lightning protection, and according to the three kinds of lightning protection architectural requirements design.
或青白江某大型商场供配电设计
The Design of Power Distribution System for a Large Departmental Store in QingbaiJiang.
本论文系统的阐述了青白江某大型商场各电气设计的设计依据、原则、方法和结论。本次设计包括供配电、照明、电视监控、防雷接地、火灾自动报警系统等，电视、电话、网络作预留，其出线及配置由下一次装修完成。
This article systematically illustrates the design basis, principles, method and conclusion of the various electrical designs for a large departmental store in Qingbaijiang. The design includes power distribution, lightings, TV surveillance, grounding for lightning protection, automatic fire alarm systems; allocation has been reserved for televisions, telephones and the internet, their wirings and dispositions will be completed in the following renovation.
首先，在高压供配电系统设计中，采用放射式系统，以增强其供电可靠性与控制的灵活性，并确定配电电压为630V与配电网络结构；进行配电干线负荷计算，选择一台500KVA干式变压器；选择高压电缆截面、型式、配电干线路径与敷设方式。
Firstly, the radiation type system will be adopted for the design of high-voltage power supply and distribution system; this is to enhance the reliability and flexibility of the power supply. A 630V distribution voltage has been determined for the distribution network structure and a 500 kVA dry-type transformer is selected after conducting calculations on the power load for the distribution main. Then, selection is carried out on the high-voltage cable cross-section, cable type, the laying route of the distribution main and the installation method.
其次，在低压配电系统设计中，确定竖直配电干线与水平配电干线的个数，位置与走向；进行负荷计算，按每平米80瓦计算；选择开关设备及导线、电缆、封闭式母线的截面与形式；选择保护装置，进行低压无功补偿容量计算；保护接地、重复接地系统的设计，确定采用TN-C-S接地系统。
Secondly, in the design of the low-voltage distribution system, the quantity, location and direction of both the vertical and horizontal distribution main lines shall be determined; load calculations based on 80 watts per square meter will be carried out to determine the selections for the switchgear and conducting wire, power cables, the cross-section and form of the isolated bus bars; low-voltage reactive compensation capacity is calculated to select the protective device and the TN-C-S grounding system is adopted for the design of the protective and repetitive grounding system.
再次，在自动火灾报警系统设计中，每层一个回路，提高精确度，当火灾信号确认后，能够启动喷淋泵、广播报警系统；强制启动应急照明、切断非消防电源、自动扶梯停运并作应急通道使用。最后，在防雷接地系统中，根据国家规范，通过计算，采用三类防雷，并按照三类防雷建筑要求设计。
Thirdly, in the design of the automatic fire alarm system, there will be one return circuit fir every floor to enhance accuracy; so that when the automatic fire signal is confirmed, the spray pump and the public address alarm system will be activated; the emergency lightings will be forced started, non-fire fighting power supply disconnected, escalators will be stopped and become emergency escape paths.
Finally, category 3 is adopted for the grounding of lightning protection after calculation in accordance with the national regulations, so the design code for category 3 lightning protection of buildings will be applied for the grounding design.
