标准规范下载简介

YD／T 5132-2005 移动通信工程钢塔桅结构验收规范（英文版）.pdf简介：

"YD/T 5132-2005 Mobile Communications Engineering Steel Tower Mast Structure Acceptance Specifications (English Version).pdf" is a technical specification in Chinese, specifically designed for the acceptance and quality control of steel tower masts used in mobile communication engineering projects. The document, published in 2005 by the China Telecommunication Industry Standardization Association (YD/T), provides detailed guidelines and requirements for the construction, installation, and testing of these structures, which are essential for supporting the infrastructure of mobile networks.

The English version of the document is intended for use by professionals, engineers, and inspectors involved in the international mobile communication industry, facilitating cross-border collaboration and ensuring adherence to consistent international standards. It covers aspects such as design, materials, fabrication, erection, inspection, testing, and documentation for such structures. The aim is to ensure the safety, reliability, and performance of these critical components in mobile communication systems.

YD／T 5132-2005 移动通信工程钢塔桅结构验收规范（英文版）.pdf部分内容预览：

2.0. 10 Sampling scheme

Sampling quantity and method determined by the characteristics of inspection items. 2.0.11Counting inspection Inspection method for recording some attribute in each individual or calculating the defective numbe of each individual among samples

3BasicProvisions

able tower and mast

《压水堆核电厂循环水系统调试导则 NB/T25038-2014》4Approachof RawMaterials andFinishedProducts

4Approach of Raw Materials and Finished Products

4. 1 General Reguirements

requirements set forth in the related standard of such products. Quantity for inspection:inspect randomly five points for each steel plate of the different products and specifications. Inspection method:measure thickness of steel plate with slide calipers.

conformity with the requirements set forth in the related standard of such products. Quantity for inspection:inspect randomly five points for each section steel of the different products and specifications. Inspection method:measure thickness with steel rulers or slide calipers. 4.2.5The appearance quality of steel materials shall be in conformity with the following requirements besides those specified in the current national standards: 1Where any rustiness,mottling,scratch,or other defect on the surfaces of steel materials,any such defect shan't be deeper than1/2 of the allowable variation. 2The rustiness grade of the surface of steel material shall be lighter than gradestated inthe current statestandard of the Rustgradesand preparation gradesof steel surfacesbeforeapplication of paintsand relatedproducts(GB8923). 3There shan't be any stratification, slag inclusion and other similar defect on the edges and fracture of steel materials. Quantity for inspection:one hundred percent; Inspectionmethod:inspectbyeveobservation

4.4Standard Fasteners for Connection

DominantItems

5.1The type,specification and performance of other special materials for structure for mol nmunication steel tower and mast shall be in conformitywith the current national standards of st ducts and the design requirements. Quantity for inspection: inspect all lots and spedifications; Inspection method:inspect the quality certificates and other such documentary evidences of quali nese identification marks,test reportsandothers

5 Welding Work

5 Welding Work

5. 1 General Reguirements

Quantity for inspection:one hundred percent:

6 ProcessingWorkof SteelParts andComponents

General Reguirements

6.2Cutting

Rectification and Formin

Table 6. 3. 4 (continued)

6.3.5The allowable variations for steel materials straightened shall be in conformity with requirements listed in the Table 6. 3. 5. Quantityfor inspection:inspect randomly10%of thetotalof pieces straightened,but shall not less than3; Inspectionmethod:inspectbyeyeobservationorbym urement

Table 6. 3. 5Allowable variatiofis for straightened steel(mn

Table 6. 3. 5 (continued)

6.5 Holes Making

Dominant Items

6.5.2The allowablevariations for spacing between bolt holes shall be in conformity with the requirements

Table 6. 5. 2Allowable variations of spacing between bolt holes(mm)

DB／T29-122-2010标准下载Notes:1All bolt holes for connecting one connecting plate and one bar at the joint constitute one group

6.5.3Allowablevariationsof distancebetween holes forflangeholes shall be±O.5mm;allowable variations fordiameter D of flange holes center shall be ±1. Omm. 6.5.4If the variation of spacing between any two bolt holes exceeds the related allowable variation listed in the Table 6. 5. 2,the bolt holes shall be patch welded with welding rods matching the parent metal; and

.3Allowable variations ofdistancebetweenholesfor flange holes shall be O.5mm;allow iations fordiameter D of flange holes center shall be ±1. Omm. .4If thevariationof spacing between any twobolt holes exceeds therelated allowable variation lis he Table 6. 5. 2,the bolt holes shall be patch welded with welding rods matching the parent metal;

new bolt holes shall be processed again. Quantity for inspection:one hundred percent; Inspection method:examine by eye observation

new bolt holes shall be processed again. Quantity for inspection:one hundred percent; Inspection method:examine by eye observation

DB11／T 1402-2017标准下载6Check and Acceptance of Parts and Elements