HOME   Cart(0)   Quotation   About-Us Tax PDFs Standard-List Powered by Google www.ChineseStandard.net Database: 189760 (7 Dec 2024)

YD/T 841-1996 English PDF (YD/T 841.1-2016 Newer Version)

YD/T 841-1996 (YD/T841-1996, YDT 841-1996, YDT841-1996)
Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
YD/T 841.1-2016English349 Add to Cart 3 days [Need to translate] Plastic duct for telecommunication underground conduit. Part 1: general Valid YD/T 841.1-2016
YD/T 841.1-2008English599 Add to Cart 3 days [Need to translate] Plastic Pipe for Buried Communication Conduit. Part 1: General Obsolete YD/T 841.1-2008
YD/T 841-1996English155 Add to Cart 0--9 seconds. Auto-delivery Underground communication pipe with plastic pipe Obsolete YD/T 841-1996
Preview PDF: YD/T 841-1996    Standards related to: YD/T 841-1996

BASIC DATA
Standard ID YD/T 841-1996 (YD/T841-1996)
Description (Translated English) Underground communication pipe with plastic pipe
Sector / Industry Telecommunication Industry Standard (Recommended)
Classification of Chinese Standard M42
Word Count Estimation 17,133
Date of Issue 1996/4/4
Date of Implementation 1996/9/1
Regulation (derived from) Information-Ministry-Science [2008] 150


YD/T 841-1996 YD TELECOM INDUSTRY STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA M 42 Underground communication pipe with plastic pipe ISSUED ON. APRIL 4, 1996 IMPLEMENTED ON. SEPTEMBER 1, 1996 Issued by. Ministry of Posts and Telecommunications of the People's Republic of China Table of Contents Foreword ... 3  1 Scope ... 4  2 Normative References ... 4  3 Product Classification, Model and Label ... 5  4 Shape and Structure Size of Pipes ... 6  5 Technical Requirements ... 12  6 Test Methods ... 14  7 Inspection Rules ... 18  8 Label, Transportation, and Storage ... 19  Appendix A ... 20  Foreword This Standard was proposed on the premise of widely promoting the new structure plastic pipe in the developed countries; it is aimed to reform the backwardness of domestic use of cement pipe block, and achieve modernization. When this Standard was proposed, some developed countries had prepared the formal standards on the stress-free delivery plastic pipe including plastic pipe for underground communication pipe, such as German DIN 16961, American ASTM F949-89; however, there is no unique standard prepared for the communication plastic pipe. European Organization for Standardization published a draft on stress-free pipe; International Organization for Standardization (ISO) published several individual provisions concerning this aspect, thereof including the most important aperture series, which plays an important role for preparing this Standard. “Rigid PVC (PVC-U) Double-wall Corrugated Pipe” issued by Chinese Ministry of Light Industry, and several performance standards approved to be issued by State Bureau of Technical Supervision also play a guiding role for preparing this Standard. Appendix A of this Standard is informative. This Standard was proposed and shall be under the jurisdiction of China Academy of Telecom Research and Planning of Ministry of Post and Telegraph. Drafting organizations of this Standard. China Association of Senior Scientists and Technicians Post and Telecommunications Branch, and Beijing Design Institute of Ministry of Post and Telegraph. Chief drafting staffs of this Standard. Liu Huai, Kong Guanghai, and Yang Zhenzhong.. The Standard was firstly published on April 4, 1996. Underground communication pipe with plastic pipe 1 Scope This Standard specifies the classification and type, shape and structure size, technical requirements, test methods, inspection rules, labels, package, transportation and storage of underground communication pipe used rigid PVC, and high and low density polyethylene plastic pipe (hereinafter referred to as pipe) products. This Standard is applicable to the outdoor communication cable and fiber optic cable pipe systems within the local network range, which include trunk pipeline, feeder pipeline, wiring pipeline, and private network pipeline. In addition to the specifically provided long-distance communication pipeline, others can also refer to this Standard... 2 Normative References The following standards contain provisions which, through reference in this Standard, constitute provisions of this Standard. At the time of publication, the editions indicated are valid. All standards are subject to revision. The parties who are using this Standard shall explore the possibility of using the latest version of the following standards. GB 2828-81 Sampling Procedures and Tables for Lot-by-Lot Inspection by Attributes (Apply to Inspection of Successive Lots or Batches) GB 2918-82 Plastics - Standard Atmospheres for Conditioning and Testing GB 6671.2-86 Polyethylene (PE) Pipes - Determination of Longitudinal Reversion GB 8804.2-88 Test Methods of Tensile Properties for Thermoplastic Pipes - Polyethylene (PE) Pipes GB 8805-88 Determination of Deflection for Rigid Plastic Pipes GB 8806-88 Method for Dimension Measuring of Plastic Pipes GB 96467-88 Test Method for External Loading Resistance for Plastic Pipe GB/T 13849-93 Local Telecommunication Cables with Polyolefin Insulation and Polyolefin Sheath GB/T 14152-93 Thermoplastic Pipes – Determination of Resistance to External Impact – True Impact Rate Method YD/T 630-93 Test Method of Copper-Core, Polyolefin Insulated, Composite Aluminum-Plastic Sheathed Cables for Urban Local Communications ZB G 33008-89 PVC Corrugated Pipe 3 Product Classification, Model and Label 3.1 Product classification Communication plastic cable pipe can be classified into the following ones as per the materials. --- High density polyethylene (HDPE) pipe taking high density polyethylene as the main material; --- Rigid PVC (PVC-U) pipe taking rigid PVC a the main material. It can be classified into the following pipes as per the structure. --- Double-wall corrugated pipe with smooth internal wall and corrugated external wall (“double-wall corrugated pipe” for short); --- Composite foam pipe with smooth internal and external wall, and intermediate containing foam layer (“composite foam pipe” for short); --- Solid wall plastic pipe with smooth internal and external wall (“solid wall pipe” for short); --- Single-wall corrugated pipe with uneven internal and external wall. It can be classified into the following pipes as per the molding appearance. --- Hard straight pipe; --- Hard bent pipe; --- Rotatable pipe. 3.2 Product model and label Product model and label consists of prefix, material, structure, molding appearance, outside/inside diameter and plant name. 4.5 Refer to Table 1 for the pipe structure and size; the diameter of pipe used in the same city shall be consistent as much as possible; refer to Appendix A for the application range of various pipe diameters. Table 1 mm Nominal Diameter Allowable Deviation of Outside Diameter Minimum Inside Diameter di min Pipe Length Application Range Composite foam, solid wall pipe Double-wall corrugated pipe +0.4 +0.3 +0.3 +0.3 +0.3 +0.4 -0.7 +0.3 - 0.6 +0.3 -0.5 +0.3 -0.4 +0.3 -0.3 ±30 Beyond the penetrate and put standard series Little use of extra-large cable Feeder pipe From feeder pipe to the connection cabinet, special network Wiring pipe Fiber optic cable Note. 1. Allowable deviation between composite foam pipe and solid wall pipe shall be positive value, which is expressed by , thereof, x shall be equal or more than the larger value of the following two ones. a) 0.3mm; b) 0.003de, the value less than 0.1mm shall be calculated as 0.1mm. 2. The maximum outside diameter and minimum inside diameter among composite foam pipe, solid wall pipe and double-wall corrugated pipe equal. 3. The ratio between maximum outside diameter and minimum inside diameter of double-wall corrugated pipe shall be 1.009.1. The color and luster of pipe shall be uniform; it shall be black or gray, which is determined by the buyer and seller, however, it must be different from other similar underground plastic pipes. The color of sub-pipes penetrating into the same large diameter of plastic pipe shall be different. 5.2 Appearance a) Pipe wall is not allowed to have air bubbles, cracks, discoloration decomposition line, and obvious impurities. The waveform of corrugated pipe shall be even, having no shortened wave. b) The internal walls of composite foam pipe and solid wall pipe are required to be smooth; and the medial incision is also required to be smooth. c) The internal walls of double-wall corrugated pipe are required to be smooth; slight fluctuation of the internal wall is allowed during the wave forming. d) The internal and external walls of the double-wall corrugated pipe shall be closely frit; and no opening phenomenon shall occur. 5.3 Size and deviation 5.3.1 Pipe length deviation shall conform to the provisions in Table 1. 5.3.2 Pipe average outsider diameter, minimum inside diameter, and its deviation shall conform to the provisions of Table 1. 5.3.3 The same cross-sectional thickness deviation between composite foam pipe and solid wall pipe shall be no more than 14%. 5.3.4 Pipe minimum socket’s average inside diameter and depth shall conform to the provisions in Table 2. 5.3.5 Pipe bent in the same direction shall be less than 2%. 5.4 Physical and mechanical properties 5.4.1 Pipe’s physical and mechanical properties shall conform to the requirements in Table 5. Table 5 Items Technical Indicators Test Methods Drop hammer impact (0°C) 9/10 no breaking See Clause 6.5.1 Ring stiffness (kN/m2) ≥6.3 See Clause 6.5.2 Flattering test No breaking See Clause 6.5.3 Coefficient of friction Dry putting ≤0.363 Applying swell soil ≤0.155 Connection sealing test No leakage See Clause 6.5.4 Note. coefficient of friction refers to the one when the internal wall of pipe penetrates the low density sheath cables. Test methods is to be determined. 5.4.2 Cold-bending radius of curvatu... ......