问题专业：土建,土建算量GTJ2018,
  提问日期：2021-03-12 15:04:59

请问板底加筋我可以在板里用暗梁布置吗? 暗梁的位置就是砌体墙的位置？这样是否正确？

可以用暗梁处理的。

问题专业：土建,
  提问日期：2021-03-12 15:02:02

未标注的基础底标高-7.22，如果标注了，按标注的走

问题专业：安装,市政,园林,概算,计价软件GCCP5,
  提问日期：2021-03-12 14:36:56

可以

问题专业：土建,
  提问日期：2021-03-12 14:35:01

需要单独套定额套什么？

需要单独套定额，看做法

问题专业：安装,
  提问日期：2021-03-12 14:33:02

图例可以全楼一起识别，识别方式有【一键提量】和【设备提量】，在识别窗口中左下角点击“选择楼层”勾选全部楼层即可。

备注：简约模式中没有“选择楼层”功能，建议在工作面层将图例识别后再分配楼层。

问题专业：土建,
  提问日期：2021-03-12 14:30:37

这个m是清单单位，工程量是1（如果自己不输入工程量软件默认是1）。

问题专业：土建,预算,
  提问日期：2021-03-12 14:14:15

2021-03-12 14:18:06 补充

长度图中给了尺寸，看不清楚。

软件里在定义墙时的其它钢筋里输入

问题专业：土建,计价软件GCCP5,
  提问日期：2021-03-12 14:08:06

致电4000166166检测处理吧，客服会远程帮你检测处理好的。

ICS 29.240.20
K 20
Record No. J938—2009
Electric Power Industry Standard of the People's Republic of China
P DL / T 5440 — 2009
Technical Code for Designing of
Overhead Transmission Line in
Medium & Heavy Icing Area
Issue Date: July 22, 2009 implementation Date: December 1, 2009
Issued by the National Energy Administration of the People's Republic of China

1 Scope
This code specifies the technical requirements for the routing, selection and configuration of conductors and shield wires, type and load of towers and crossing, taking into account the characteristics of heavy icing lines.
This code is applicable to the design of 110kV-750kV heavy icing transmission lines. It can also be used as a reference standard for the DC/AC heavy icing transmission lines at other voltage levels.

2 Normative References
The following normative documents contain provisions which, through reference in this text, constitute provisions of this code. For dated references, subsequent amendments (excluding the contents of errata) to, or revision of, any of these publications do not apply. However, parties to agreements based on this code are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies.
GB 50545 Code for Design of 110kV-750kV Overhead Transmission Line
DL/T 5158—2002 Technical Code of Meteorological Surveying for Electrical Power Projects

3 General
3.0.1 Heavy icing lines include the transmission lines erected in medium and heavy icing areas.
3.0.2 In addition to this code, the design of heavy icing lines shall observe the requirements as specified in Code for Design of 110kV-750kV Overhead Transmission Line.
3.0.3 When designing heavy icing lines, the measures for avoiding icing or anti-icing shall be given priority. In areas where conditions permit, the measures for melting and preventing icing may be used if justified through technical and economic comparison. For the lines designed with ice melting and prevention measures, design ice thickness shall be selected appropriately to ensure that they have a certain anti-icing capability.
3.0.4 In parallel with the design of heavy icing lines, ice observation stations (points) shall be established and on-line icing monitoring shall be conducted for transmission lines if conditions permit so as to collect the data at ice observation stations and summarize the design and operation experiences.
3.0.5 For the purpose of this code, transmission lines are divided into three categories in terms of voltage levels.
Category 1: lines operating at 750kV, 500kV, and critical lines operating at 330kV;
Category 2: lines operating at 330kV, and critical lines operating at 220kV;
Category 3: lines operating at 220kV and 110kV.

ICS 29.240
F 20
Record No. J928—2009
Electric Power Industry Standard of the People's Republic of China
P DL / T 5430 — 2009
Technical Code for Designing of
Remote Monitoring and
Control Center about
Unattended Substation
Issue Date: July 22, 2009 implementation Date: December 1, 2009
Issued by the National Energy Administration of People's Republic of China

1 Scope
This code specifies the principles and standards to be followed for the design of remote monitoring and control centers of unattended substations and applies to substations at 220kV and below.

2 Normative References
The following normative documents contain provisions which, through reference in this text, constitute the provisions of this code.
For dated references, subsequent amendments (excluding the contents of errata) to, or revision of, any of these publications do not apply.
However, parties to agreements based on this code are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For all the referenced codes with no dates indicated, their latest revisions are applicable for the standard.
GB/T 2887 Specification for Electronic Computer Field
GB/T 14429 Telecontrol Equipment and Systems Part 1-3:
General considerations-Glossary
GB 50059 Design Code for Substations (35kV-110kV)
GB 50174 Code for Design of Electronic Information System Room
DL/T634.5101 Telecontrol Equipment and Systems Part 5:Transmission Protocols Section 101: Companion Standard for Basic Telecontrol Tasks (IDT IEC 60870-5-101: 2002)
DL/T 634.5104 Telecontrol Equipment and Systems Part 5-104: Transmission Protocols-Network Access for IEC 60870-5-101 Using Standard Transport Profiles (IDT IEC60870-5-104:2002)
DL/T 5002 Specifications for the Design of Dispatch Automation in District Power Networks
DL/T 5025 Technical Code of Engineering Design for Digital Microwave Communication Project of Electric Power System
DL/T 5149 Technical Code for Designing Computerized Monitoring and Control System of 220kV-500kV Substations
DL/T 5218 Technical Code for Designing 220kV-500kV Substation

3 Terms and Definitions
The following terms and definitions apply to this code.
3.0.1
Unattended substation
A substation without specially assigned operation and maintenance personnel. The operation monitoring and major control operations of such a substation are mainly performed by the remote monitoring and control center, and the equipment is patrolled and maintained on a regular basis.
3.0.2
Remote monitoring and control center
A site which remotely monitors and controls one or more monitoring points (unattended substations in this code) in a centralized manner.

ICS 27.100
F 21
Record No. J927—2009
Electric Power Industry Standard of the People's Republic of China
P DL / T 5429 — 2009
To replace SDJ 161 — 1985
Technical Code of Design for the
Electric Power System
Issue Date: JuIy 22, 2009 implementation Date: December 1, 2009
Issued by National Energy Administration of the People's Republic of China

1 Scope
This code specifies the basic requirements for the design of electric power system, including power demand forecast, design of power source and grid schemes, calculation of power flow, phase modulation and voltage regulation, system stability, short-circuit current, power frequency over-voltage and secondary arc current, as well as the comparison of various schemes in terms of economy.
This code is applicable to design of electric power system of 220 kV and above (primary part), to the study on special topics of electric power system, the design for connecting power plants, substations and converter stations to the system, the feasibility study on power generation, transmission and transformation projects as well as preliminary design of system part.

2 Normative References
The following normative documents contain provisions which, through reference in this text, constitute provisions of this code. For dated references, subsequent amendments (excluding the contents of errata) to, or revision of, any of these publications do not apply.
However, parties to agreements based on this code are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies.
DL 755 Guidelines for Safety and Stability of Power Systems
SD 325 Technical Guidelines for Voltage and Reactive Power of Power Systems (trial)
Provisional Regulations for Economic Analysis of Electric
Power Projects, issued by the former Ministry of Water Resources and Electric Power (Dianjizi [82] No.44)

3 General
3.0.1 The design of power systems shall follow the industrial policy, development guiding principle and various technical and economic policies of the electric power industry and shall be market-oriented, on the grounds of safety and stability and in line with the fundamental principle of optimal allocation of energy resources such that the design is scientifically demonstrated, technically advanced and economically viable.
3.0.2 The design of an electric power system shall be based on power industry planning, grid planning, and transmission system planning of the power plants. The detailed development scheme shall be further studied and proposed while taking into account the overall conditions of the electric power system.
3.0.3 The layout of the power sources and power grid shall be considered reasonably when designing the power system to ensure that the power generation, transmission, transformation projects and reactive power supply can be built in a coordinated manner and lay a foundation for design of relay protection, design of power system safety automatic control devices, communication design, dispatching automation, and design of electric power system of a lower rated voltage level.
3.0.4 The safe and stable operation of an electric power system prerequisites a reasonably designed grid structure. While ensuring the safe and stable operation of the system and satisfying the demands for power market development, the design shall consider all the factors comprehensively to achieve a reasonable layout of the power grid such that the weak links can be eliminated, the main grid can be strengthened, the power grid at the sending end can be simplified and the anti-disturbance ability of the power grid can be improved.
3.0.5 The design of the power system shall provide the basis for study on special topics of power system, the design of connecting power plants, substations and converter station into the system, feasibility study on power generation, transmission and transformation projects, the system part of the preliminary design as well as the next stage of system design.
3.0.6 The specific tasks of designing an electric power system are to:
1 Analyze and propose the level, distribution, composition and characteristics of the electric power demand.
2 Balance the electric power and energy, and further demonstrate the reasonable range served by the power system and associated networking schemes, power source building schemes as well as system peak regulation scheme.
3 Demonstrate the grid construction schemes, including voltage level, grid structure, and transitional measures.
4 Carry out electrical calculation on the power grid, and then propose the technical measures for ensuring voltage quality and safety and stability of the system.
5 Propose the commissioning time of power generation,transmission and transformation projects and reactive power supply,quantity and main specifications of major equipment, and perform investment estimation.
6 Propose the special topics requiring further study.
The above tasks can be carried out in a targeted manner by stages according to the specific conditions, while taking into account the situations comprehensively.
3.0.7 The design level year of the electric power system should be in conformity with the planning year of national economy and society development, generally being taken as a year after around five years from now on, and a year after 10-15 years from now on for future outlook.

ICS 27.100
K 54
Record No. J926—2009
Electric Power Industry Standard of the People's Republic of China
P DL / T 5428 — 2009
Technical Code for Design of I&C
Protection System in Fossil Fuel
Power Plant
Issue Date: July 22, 2009 implementation Date: December 1, 2009
Issued by the National Energy Administration of the People's Republic of China

1 Scope
This code specifies the design principles and design methods that shall be followed in power supply, logic and protection system configuration as well as equipment part of protection system in fossil fuel power plant.
This code is applicable to the design of new construction, expansion and betterment projects for condensing fossil fuel power plants with steam turbine generator unit rated 125MW- 1000MW, as well as the design of thermal power plants with capacity of 50MW and above.

2 Normative References
The following normative documents contain provisions which, through reference in this text, constitute provisions of this code. For dated references, subsequent amendments (excluding the contents of errata) to, or revision of, any of these publications do not apply.
However, parties to agreements based on this code are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies.
GB/T 5578—2007 Fixed Power Plant Turbine Specifications
GB/T 13399—1992 Specification for S team Turbine Safety Monitoring Devices
GB/T 13983—1992 Instruments—Vocabulary—Basic Terms
GB/T 17626.2—2006 Electromagnetic Compatibility—Testing and Measurement Techniques—Electrostatic Discharge Immunity Test
GB/T 17626.3—2006 Electromagnetic Compatibility—Testing and Measurement Techniques—Radiated Radio-Frequency Electromagnetic Field Immunity Test
GB/T 17626.4—2008 Electromagnetic Compatibility—Testing and Measurement Techniques—Electrical Fast Transient/Burst Immunity Test
GB/T 17626.5—2008 Electromagnetic Compatibility—Testing and Measurement Techniques—Surge Immunity Test
GB/T 17626.6—2008 Electromagnetic Compatibility—Testing and Measurement Techniques—Immunity to Conducted Disturbances Induced by Radio-Frequency Fields
GB/T 17626.8—2006 Electromagnetic Compatibility—Testing and Measurement Techniques—Power Frequency Magnetic Field Immunity Test
GB/T 17626.9—1998 Electromagnetic Compatibility—Testing and Measurement Techniques—Pulse Magnetic Field Immunity Test
GB/T 17626.10—1998 Electromagnetic Compatibility—Testing and Measurement Techniques—Damped Oscillatory Magnetic Field Immunity Test
GB/T 17626.11—2008 Electromagnetic Compatibility—Testing and Measurement Techniques—Voltage Dips, Short Interruptions and Voltage Variations Immunity Tests
GB/T 17626.12—1998 Electromagnetic Compatibility—Testing and Measurement Techniques—Oscillatory Waves Immunity Test
GB/T 20438.1—2006 Functional Safety of Electrical/Electronic/ Programmable Electronic Safety-related Systems—Part 1: General Requirements
GB/T 20438.2—2006 Functional Safety of Electrical/Electronic/ Programmable Electronic Safety-related Systems—Part 2: Requirements for Electrical/Electronic/Programmable Electronic Safety-related Systems
GB/T 20438.3—2006 Functional Safety of Electrical/Electronic/
Programmable Electronic Safety-related System s—Part 3: So ftware Requirements
GB/T 21109.1—2007 Functional Safety—Safety Instrumented Systems for the Process Industry Sector—Part 1: Framework Definitions System Hardware and Software Requirements
GB 50217—2007 Code f or Design o f Cables of Electric Engineering
GB 50229—2006 Code for Design of Fire Protection for Fossil
DL / T 5428 — 2009 Fuel Power Plants and Substations
DL/T 435—2004 Code for the Prevention of Pulverized Coal Firing Furnace Explosions/Implosions in Power Plant Boilers
DL/T 589—1996 Directives of Thermal Instrumentation and Control for Coal Fired Boiler in Power Plant
DL/T 590—1996 Directives of Thermal Instrumentation and Control for Condensation Type Turbine in Power Plant
DL/T 591—1996 Directives of Thermal Instrumentation and Control for Turbo-Generator in Power Plant
DL/T 592—1996 Directives of Thermal Instrumentation and Control for Boiler Feedwater Pump in Power Plant
DL/T 641—2005 Electric Valve Actuators for Power Plant
DL/T 701—1999 Thermopower Au tomation-Vocabulary for Fossil Fired Power Plant
DL/T 711—1999 Test Guide of Steam Turbine Governing System
DL/T 834—2003 Guide for the Prevention of Water and Cool Steam Damage to Steam Turbines in Fossil Power Plant
DL/T 892—2004 Specification o f Steam Turbine for Pow er Plant
DL 5000—2000 Technical Co def or Designing Fossil Fuel Power Plant
DL/T 5182—2004 Technical Rule for Designing of Lo cal Equipment Installation, Pipeline and Cables of I&C in Power Plant
SD 268—1988 Specification for Power Station Coal Fired Boiler
NFPA 85—2004 Boiler and Combustion Systems Hazards Code
ASME TDP-1 — 1998 Recommended Practices for the Prevention of Water Damage to S team T urbines Used for Electric Power Generation
3 Terms and Definitions, Abbreviations
In addition to the terms and definitions specified in GB/T 13983 and DL/T 701, the following terms and definitions, as well as abbreviations are applicable to this code.
3.1 Terms and Definitions
3.1.1
One out of two for binary variable
Logic consisting of two binary variables reflecting the same event. When any variable is "true", the logic output is "true".
3.1.2
Two out of three for binary variable
Logic consisting of three binary variables reflecting the same event. When any two variables are "true", the logic output is "true".
3.1.3
Dual redundancy for analog variable
One variable is measured simultaneously by two analog variable transmitters or sensors for mutual standby.
3.1.4
Triple redundancy for analog variable
One variable is measured simultaneously by three analog variable transmitters or sensors for mutual standby.
3.1.5
Multiple redundancy for analog variable
One variable is measured simultaneously by more than three analog variable transmitters or sensors, for mutual standby.
3.1.6
Programmable electronic
Based on computer technology, programmable electronic can be composed of hardware, software, and their input and (or) output units.
3.1.7
Logic system
The part used to perform the decision and transition for functional logic in this system. A logic system provides output in particular sequence to respond to external input and internal logic. Logic system includes:
1 Hardwired system: devices and their interconnecting wiring.
2 The system based on microprocessor.
1) Computer hardware, power supply, I/O device and their interconnecting parts.
2) Operating system and logic software.
3.1.8
Programmable electronic logic system
Logic system based on one or more programmable electronic devices, used for control, protection or monitoring, which includes all elements in the system, such as power supply, input device, data highway, other communication channels, and output device, etc.. For example: PLC, DCS, etc..
3.1.9
Safety function
The function realized by safety-related programmable electronic system, other technical safety-related systems or external risk reduction facilities in respect of certain hazardous events, in order to achieve or maintain the safety state of controlled equipment.
3.1.10
Safety-related system
The specified system must be capable of realizing the required safety function to achieve or maintain the safety state of equipment controlled; the system alone or together with other safety-related programmable electronic systems, other technical systems or external risk reduction facilities can achieve the safety integrity required by the necessary safety function.
3.1.11
Safety integrity
The probability that safety-related system successfully achieves the safety function required under conditions specified and within the time specified.
3.1.12
Safety integrity level; SIL
A discrete level (one of the four possible levels), used to specify the safety integrity requirements of safety function assigned to safety-related programmable electronic system. SIL 4 herein is the highest, and SIL 1 is the lowest. See Table 3.1.12.

ICS 29.060.20
K 13
Record No. J806—2008
Electric Power Industry Professional Standard of the People's Republic of China
P DL / T 5405 — 2008
Code for Content Depth on
Preliminary Design of
Urban Power Cables
Issue Date: June 4, 2008 implementation Date: November 1, 2008
Issued by the National Development and Reform Commission of the People's Republic of China

1 Scope
This code specifies the content depth requirements of preliminary design of urban power cables.
This code is applicable to the preliminary design of newly built 35 kV-220 kV urban power cables. For newly built power cables rated below 35 kV or retrofitted cables rated 35 kV-220 kV, the code may be used for reference.

2 Normative References
The following normative documents contain provisions which,through reference in this text, constitute provisions of this code. For dated references, subsequent amendments (excluding the contents of errata) to, or revision of, any of these publications do not apply.
However, parties to agreements based on this code are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies.
GB 50217 Code for Design of Cables of Electric Engineering
DL/T 5221 Technical Rule for Design of Urban Power Cables

3 Terms and Definitions
The following terms and definitions apply to this code.
3.0.1
Cable corridor
The collective term for direct burying, ducts, cable troughs, and cable tunnels.

ICS 27.100
F 20
Record No. J724—2007
Electric Power Industry Standard of the People's Republic of China
P DL / T 5394 — 2007
Guideline for Anti-corrosion of
Underground Steel Structure in
Power Project
Issue Date: July 20, 2007 implementation Date: December 1, 2007
Issued by the National Development and Reform Commission of the People's Republic of China

1 Scope
This guideline specifies the technical requirements for the anti-corrosion of underground steel structures in power projects.
This guideline is applicable to design, construction, acceptance and management of anti-corrosion works of buried steel pipes and earthing grid in power plants and AC substations. It can also be used as a reference standard for anti-corrosion of other underground steel structures.

2 Normative References
The following documents contain provisions which through reference in this text, constitute provisions of this guideline and the version thereof in force at the time of publication of this guideline shall be deemed effective. All the standards indicated below are subject to revision and parties using these guidelines are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below.
GBZ1 Hygienic Standards for the Design of Industrial Enterprises
GBJ87 Specifications for Design of Noise Control System in Industrial Enterprises
GB/T 4950 Sacrificial Anode of Zn-Al-Cd Alloy
GB 6514 Safety Code for Painting—Safety, Ventilation and Air Clean-up for Painting Process
GB/T 7388 Technical Requirements for Marine Auxiliary Anode
GB/T 8923 Rust Grades and Preparation Grades of Steel Surfaces before Application of Paints and Related Products
GB/T 17731 Magnesium Alloy Sacrificial Anode
SY/T 0017 Standard of DC Drainage Protection for Buried Steel Pipelines
SY/T 0019 Design Specification of Sacrificial Anode for Buried Steel Pipeline
SY/T 0023 Test Method for Cathodic Protection Parameters of Buried Steel Pipelines
SY/T 0032 Standard for AC Influence Drainage Protection of Buried Steel Pipeline
SY/T 0036 Design Specification of Impressed Current Cathodic Protection for Buried Steel Pipeline
SY/T 0063 Standard Test Methods for Holiday Detection in Pipeline Coatings
SY/T 0086 Electricity Insulation Standard for Cathode Protection Pipeline
SY/T 0096 Technical Specification of Impressed Current Deep Groundbeds
SY/T 0315 Technological Standard of External Fusion Bonded Epoxy Coating for Steel Pipeline
SY/T 0413 Technical Standard of Polyethylene Coating for Buried Steel Pipeline
SY/T 0414 Technical Standard of Polyethylene Tape Coating for Steel Pipeline
SY/T 0447 Standard of Coal Tar Epoxy Coating for Buried Steel Pipeline
SY/T 0516 Technical Code for Insulating Flange Design
SY/T 6151 Assessment of Corroded Steel Pipelines

3 Terms and Definitions
The following terms and definitions apply to this standard.
3.0.1
Corrosion
A physical-chemical interaction between metals and ambient medium, resulting in the change of the property of metals, and damages to metals, environment or the function of technical systems consisting of metals and ambient medium.
3.0.2
Corrosion rate
Mass loss of metals caused by corrosion within a unit period of time, usually expressed in mm/a or g/(m2·h).
3.0.3
Corrosion potential
Potential of a metal being an electrode in a special field corrosion
system.
3.0.4
Self-corrosion potential
Potential of a metal being an electrode without net current flows into and out of its surface.
3.0.5
Coating
Layers of insulation material applied on the surfaces of steel structures and the accessories thereof to separate them from the corrosive environment physically.
3.0.6
Holiday
Physical discontinuity point of the coating.
3.0.7
Cathodic protection
An electrochemical protection method whereby the corrosion potential is reduced in order to decrease the corrosion rate of the protected object obviously.
3.0.8
Sacrificial anode
A metal component which constitutes an anode with lower potential when it is coupled with a protected object being the cathode to form an electrochemical cell and this anode will dissolve to discharge negative current to protect the cathode.
3.0.9
Cathodic protection with sacrifice
An electromechanical protection method whereby a metal component being the sacrificial anode is coupled with a protected object being the cathode and protect the cathode by supplying negative current to it.
3.0.10
Impressed current cathodic protection
An electromechanical protection method whereby an external power supply is employed to supply negative current to a protected object being the cathode thereby protects it.

ICS 29.240.30
F 21
Record No. J522—2006
Electric Power Industry Standard of the People's Republic of China
P DL / T 5340 — 2006
Technical Code for Designing of
Telecommunication Lines Against
Danger Effects from DC Power
Transmission Lines
Design of Fossil Fuel Power Plant
Issue Date: May 6, 2006 implementation Date: October 1, 2006
Issued by the National Development and Reform Commission of the People's Republic of China

1 Scope
This code specifies the permissible value of danger effects on telecommunication lines from DC transmission lines, presents the calculation methods of danger effects, and provides necessary parameters and protective measures.
This code applies to the design of the protections that protect telecommunication lines from danger effects caused by the adjacent DC transmission lines.
In addition to this code, the design of the protections that protect telecommunication lines from danger effects caused by the adjacent DC transmission lines shall comply with the provisions of the national standards currently in force as well.

2 Terms and Definitions
The following terms and definitions apply to this code.
2.0.1
Telecommunication lines
Communication lines in forms of overhead open wire, overhead or buried cable, overhead or buried telecommunication optical fiber cable, and railway signal electrical line, cable television (signal, feed and subscriber) line, and remote control and signaling line.
2.0.2
Railway signal electrical lines
Cables and overhead open wires that transmit information for railway signal system, such as relay semi-automatic or automatic obturate way circuit, remote control line, remote signaling line, and railway circuit within the automatic obturate section.
2.0.3
Danger effects
The induced voltage and current on telecommunication lines caused by DC transmission lines can possibly endanger the safety of telecommunication operation and maintenance personnel, damage telecommunication lines or equipment, cause fire to buildings and structures, or cause wrong operation of railway signaling equipment which will bring hazards to traffic safety.
2.0.4
Adjacency
The relative position of telecommunication lines to DC transmission lines when the electromagnetic effects of DC transmission lines may cause danger to the telecommunication lines.
Parallel adjacency describes a situation in which the variation of distance between two adjacent lines does not exceed 5% of the arithmetic mean of the distance. Oblique adjacency describes a situation in which the variation of distance between two adjacent lines exceeds 5% and increases or decreases linearly (both DC transmission lines and telecommunication lines having no turning points).
2.0.5
Adjacent distance
The distance obtained by perpendicularly drawing a line from any point on the center line of the telecommunication line to that of the DC transmission line.
2.0.6
Length of adjacent sect
The projected length of the adjacent section of the telecommunication lines on the DC transmission lines.
2.0.7
Cross-over
The situation in which DC transmission lines pass through telecommunication lines from overhead.
2.0.8
Inductive coupling effect
Effects of current in DC transmission lines or from the ground on telecommunication lines through inductive coupling.
2.0.9
Capacitive coupling effect
Effects of voltage of DC transmission lines on telecommunication lines through capacitive coupling.

2.0.10
Resistive coupling effect
Effects on the grounding systems and the burial cables of telecommunication offices (stations) caused by ground resistive coupling when the short-circuit current flowing through the grounding system of DC power transmission line towers results in a potential difference between the direct grounding area and the remote ground area.
2.0.11
Magnetic induction endlong electromotance
Potential difference between any two points on a telecommunication line caused by the current in DC transmission line and the ground.
2.0.12
Magnetic induction ground voltage
The ground potential induced at any point on a telecommunication line by the current in the DC transmission line and the ground.
2.0.13
Railway circuit
A circuit in which the tracks of railway are used as conductors to check if there are trains on the railway, transmit the information about the presence of trains and form a communication circuit between the ground and the train.
2.0.14
Automatic obturate way circuit
A circuit used to determine the traveling directions of trains when they are traveling bi-directionally on the same railway within the automatic obturate section (normally in the same route of the communication lines of railways).
2.0.15
Broadcasting signal lines
Signal transmission lines of the wired broadcasting signal transmission system.
2.0.16
Broadcasting feedback lines
Feedback transmission lines of the wired broadcasting power transmission system.
2.0.17
Broadcasting user's lines
The transmission lines correspond the output end of transformers to the input end of user's equipment used in the wired broadcasting power transmission system.

ICS 27.100
F 20
Record No. J1045—2010
Electric Power Industry Standard of the People's Republic of China
P DL / T 5252 — 2010
Meteorological Testing
Specification for Environment
Impact Assessment of Thermal
Power Plants
Design of Fossil Fuel Power Plant
Issue Date: May 24, 2010 implementation Date: October 1, 2010
Issued by the National Energy Administration

1 Scope
This specification defines the fundamental requirements on meteorological testing activities in environmental impact assessment for construction projects of thermal power plants.
This specification is applicable to the meteorological testing activities in environmental impact assessment for construction projects of thermal power plants. It may also be taken as a reference for waste fired power stations and biomass power generation projects.

2 Normative Reference
The following normative documents contain provisions which, through reference in this text, constitute the provisions of this specification. For dated references, subsequent amendments (excluding the contents of errata) to or revision of any of these publications do not apply.
However, parties to agreements based on this specification are encouraged to investigate the possibility of applying the latest editions of the normative documents indicated below. For undated references, the latest editions thereof applies.
GB/T 3840 Technical Methods for Making Local Emission
Standards of Air Pollutants
GB 13223 Emission Standard of Air Pollutants for Thermal
Power Plants
HJ 2.2 Guidelines for Environmental Impact AssessmentAtmospheric Environment

3 Terms and Definitions
The following terms and definitions apply to this specification.
3.0.1
Assessment area
Abbreviated from environmental impact assessment area.
Different pollution sources result in different impact areas for different environmental elements. The assessment area described herein refers to the atmospheric environmental impact assessment area.
3.0.2
Cavitation at leeward slope
When an air flow passes obstacles, such as mountains, buildings,the counterflow area formed within a certain distance range of such obstacles at the leeward side.
3.0.3
Mountain valley breeze
It results from thermodynamic difference between a mountain valley and the surrounding air. In the daytime, wind blows from the valley to slope of a mountain (referred to as valley breeze); and at night, wind blows from the slope to valley of a mountain (referred to as mountain breeze). Valley breeze and mountain breeze are collectively called as the mountain valley breeze.
3.0.4
Sea breeze and land breeze
A wind characterized by diurnal variation which is formed near coasts due to uneven temperature between the land and the sea.
Where the basic air flow is weak, wind blows from the sea to the land in the daytime (referred to as sea breeze), and blows from the land to the sea at night (referred to as land breeze), and the both of them are collectively called as sea breeze and land breeze.
3.0.5
Atmospheric boundary layer
The lowest layer of aerosphere, also known as the"planetary boundary layer". In this layer, strong exchanges of various properties between the atmosphere and the ground occur due to thermal and dynamic effects from the ground, and as a result, the atmospheric motions present substantially irregular turbulent state.
3.0.6
Internal boundary layer
A new boundary layer occurring in the original boundary layer when air flow transits from one underlying surface to another underlying surface with different thermal and dynamic properties,also known as secondary boundary layer.
3.0.7
Urban heat island circulation
A kind of local wind caused by the temperature difference between urban area and the surrounding suburban or rural areas.
3.0.8
Temperature inversion
The phenomena that the atmospheric temperature rises with the increase in height above the ground.

问题专业：土建,预算,计价软件GCCP5,土建算量GTJ2018,
  提问日期：2021-03-12 09:46:35

这个屋面钢筋网片的设置是不是用屋面的长和宽除以设置间距250，得到钢筋的根数

然后再计算钢筋总长度，计算钢筋重量。

这样对不对，如果不对，麻烦告诉我具体应该怎么算，谢谢了

对的

问题专业：安装,概算,预算,结算,安装算量GQI,
  提问日期：2021-03-12 09:43:47

请问这个厕所里的图例是什么？风口吗？

是的，进风口。

问题专业：土建,预算,结算,土建算量GTJ2018,钢结构算量GJG,
  提问日期：2021-03-12 09:40:33

旁边的钢梁是不是代表由原本的梯梁换为钢梁代替？

2021-03-12 09:43:31 补充

梯板厚度140mm

梯段高度是1667,11步踏步均分

上部筋C8@150，下部筋C12@100

分布筋C8@200

问题专业：土建,
  提问日期：2021-03-12 09:39:16

如图增减工程量该 和清单工程量相同 ，11-1-5 定额编号 需要乘以系数2 。