ICS47.020.50 Preparation No.: 2912-1999 Ship Industry Standard of the People's Republic of China CB/T3143—1999 Dog type cable clenches Published on April 30, 1999 China State Shipbuilding Corporation Implemented on August 1, 1999 CB/T31431999 This standard is a revision of CB3143-83\Dog type cable clenches". Introduction This standard changes the tongue-pin fixation used in the original standard to prevent accidental disengagement when the cable clenches are tightened, and changes to a convex type with a watertight cover to fix the door. Due to the addition of a watertight cover, the weathertight performance is good. This standard will replace CB3143-83 from the date of implementation. This standard is proposed by the National Technical Committee for Ship Equipment Standardization. This standard is under the jurisdiction of Jiangnan Shipyard (Group) Co., Ltd. The initiator of this standard: Dalian Shipyard New Plant. The main drafters of this standard: Meng Weixuan, Zhang Ping, Shen Yueping. This standard has a unified construction drawing. This standard was first issued in 1983. 1 Scope Ship Industry Standards of the People's Republic of China Dog type cable clenches This standard specifies the product classification, technical requirements, inspection rules and markings of clenches and anchor abandoners. This standard applies to clenches and anchor abandoners for secondary and tertiary anchor chains with a chain diameter of 52~120mm. 2 Referenced standards CB/T3143-—1999 Classification number: U21 Replaces CB'3143-83 The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards. CB'3273-85 Tightness test of ship doors, windows and covers Small steel hatch covers CB/T3728—95 3 Product classification 3.1 Clenches The structural type and main dimensions of the anchor abandoning group are shown in Figure 1 and Table 1. Approved by China State Shipbuilding Corporation on April 30, 1999 and implemented on August 1, 1999 d>82 force CB/T3143-1999 1 dumping chain: 2- notice board: 3- handle: 4- spiral buckle: 5- box: 6- padding: 7- cover: 8- plug-in door Figure 1 plug-in anchor abandoning device Applicable At Chain diameter 70~73bZxz.net 97~102 105~111 114~120 The main dimensions of the warning sign are as shown in Figure 2 CB/T3143-1999 The main dimensions of the anchor abandoning device WARNING Anchor chain abandoning direction TH DIRECTION OF SLIPING THE CABLE NO OPENING AT NO SLIPING THE CABLE Figure 2 Warning sign Marking example CB/T3143--1999 Anchor abandoner with chain diameter of 62~64mm: Anchor abandoner with door 64CB/T3143-1999 4 Technical requirements 4.1 The main parts and materials of the anchor abandoner are shown in Table 2. Main parts materials Parts name Chain plate Clip plate Cover Hinge pin Live bolt Butterfly nut Warning sign Ordinary carbon structural steel Structural steel for hull High-quality carbon structural steel Stainless steel Cast copper alloy Brass plate Q235-A A Grade steel 1Cr18Nig9 ZCnZn40Mn2 GB700-88 GB712—88 GB699-88 GB1220-92 GB1176-87 GB2041-89 Hinges shall meet the requirements of Jc2 in CB/T3728; spiral clips shall meet the requirements of K, in CB/T3728. 4.2 4.3 The surface of the parts shall be smooth and shall not have defects such as burrs, scars, inclusions and cracks. 4.4 The flexibility of the anchor opening shall be checked after manufacturing. 4.5 The surface of the anchor shall be painted red. 4.6 The flushing test of the anchor shall be carried out in accordance with the provisions of CB3273. The base plate of the warning sign is yellow; the font is red. 4.7 Inspection rules 5.1 The anchor-abandoning device shall be inspected according to the requirements of 4.3, 4.4 and 4.5. 5.2 The anchor-abandoning device shall be subjected to a water flushing test according to the requirements of 4.6. 6 Marking The marking of the anchor-abandoning device shall include the following: a) Manufacturer's name; b) Model and standard number; c) Inspection certificate. Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.