CB/T 3667.3-1995 Grounding fittings for ship cable laying and electrical equipment installation accessories CB/T3667.3-1995 Standard download decompression password: www.bzxz.net

Ship Industry Standard of the People's Republic of China
CB/T 3667.1~3667. 6--1995
Ship cable laying and electrical equipment installation accessories 1995-12-19 Issued
China State Shipbuilding Corporation Issued
1996-08-01 Implementation
Ship Industry Standard of the People's Republic of China
Ship cable laying and electrical equipment installation accessories grounding parts
Subject content and scope of application
CB/T3667.3-1995
Classification number, U06
Daiyu CB'391--82
CB°392—82
CB'393-76
CB'3228—84
This standard specifies the product classification, technical requirements, inspection rules, marking, packaging and storage of grounding parts. This standard applies to grounding jumpers (hereinafter referred to as jumpers), grounding plates, lightning rods, and cable grounding clamps (hereinafter referred to as clamps) used for safe grounding of marine electrical equipment.
2 Product classification
2.1 Jumper
2.1.1 Model
Basic size width, mm
Basic size length, mm
Grounding jumper
2.1.2 Specifications and dimensions
The specifications and dimensions of the jumper are as shown in Figure 1 and Table 1. RB
KP-70×15
KP-80×15
KP-100×15
KP-100X25
KP-120X30
Figure 1 jumper
China State Shipbuilding Corporation 1995-12-19 approved 66
Matched reducer model
B-1, B-2, B-3
E-10, E-15.E-25
B-4, B-6, B-10, B-120
E-40, E-60
B-25, B-85
Weight, kg/1000 piece
1996-08-01Implementation
KP-140X35
KP-150X40
KP-160X50
2.2 Grounding plate
2.2.1 Model
CB/T3667.3-1995
Continued Table 1
Basic size specifications are expressed by the corresponding grounding copper bar width. 2.2.2 Specifications and dimensions
Specifications and dimensions of grounding plates shall be in accordance with Figure 2 and Table 2.2.2.3 Marking examples
Grounding plate with a grounding copper bar width of 50 mm: Grounding plate JB-50CB/T3667.3-1995
Equipped with shock absorber models
E-120, E-160
E-220, E-300
Basic dimensions and specifications
Grounding plate
Figure 2 Grounding plate
a Copper bar thickness; — Copper bar width: A--grounding plate length; B-grounding plate width mm
Weight, kg/1000
JB-100
JB-150
JB-200
2.3 Lightning rod
2.3.1 Type
CB/T3667.3-1995
Transmitters with power of 50W and below
Transmitters with power of below 500W
Transmitters with power of more than 500W and 1000W
Transmitters with power of more than 1000W
According to their structure, the products are divided into eight types of lightning rods: Type 1: steel straight, welded on steel gun; Type 2: copper curved, welded on steel gun; Type 3: copper straight, welded on steel gun; Type 4: copper curved, welded on steel olive; Type 5: steel straight, riveted on wooden gun; Type 6: steel curved, riveted on wooden gun; Type 7: copper straight, riveted on wooden olive; Type 8: copper curved, riveted on wood. 2.3.2 Model
2.3.3 Specifications and dimensions
-口xO
Diameter D, mm
Length L, mm
Type serial number
Lightning rod
Specifications and dimensions of lightning rods are as shown in Figure 3 and Table 3. 2.3.4 Marking example
Length L=650mm, diameter D=12mm, copper curved lightning rod welded on steel Needle lightning rod BL4-650X12CB/T3667.3-1995BL1 series lightning rod
free bend
BL5 series lightning rod
CB/T3667.3-1995
BI.2 series lightning rod
BL.6 series lightning rod
BL1-650X25
BL2-650X25
BL3-650X12
BL4-650X12
BI.3 series lightning rod
BL? series lightning rod
Figure 3 lightning rod
Free bend
131.4 series lightning rod
Free bend
BL8 series lightning rod
2.4 clamp
2.4.1 Model
BLS-750X25
BL6-750×25
BL7-750×10
BL8-750X10
CB/T3667.3-1995
Continued Table 3
Basic size specifications
Cable grounding clamp
Basic size specifications are expressed by the outer diameter of the cable applicable to the clamp. 2.4.2 Specifications and dimensions
Specifications and dimensions of the clamp are in accordance with Figure 4 and Table 4.
Center knurling
Marking
Figure 4 Clamp
Effective length L of the clamp
Applicable cable outer diameter
Nominal outer diameter
11.5~13.4
13.5~15. 4
15.5~17.4
17.5~19.4
19.5~21.4
2.4.3 Marking example
Effective length of clamp difference L
CB/T3667.3-1995
Continued Table 4
Applicable cable outer diameter
Nominal outer diameter
Applicable to cable grounding clamp with outer diameter of 20mm: clamp JK-20CB/T3667.3-1995
3 Technical requirements
3.1 Jumper
3.1.1 The material of the jumper is T2 pure copper sheet.
21.5~23.4
23.5~27.4
25.5~27.4bzxZ.net
27.5~29.4
29.5~31.4
3 1.5~33.4
33.5~35.4
35.5~37.4
37.5~39.4
39.5~41.4
41.5~43. 4
43.5~45.4
45.5~47.4
47.5~49. 4
49.5~51.4
51.5~53.4
53.5~55.4
55.5~57.4
57.5~59.4
3.1.2 The jumper should be cut along the direction of the plate extension line, and there should be no cracks, folds and other defects. 3.1.3 The surface of the jumper should be tinned or tinned, and the coating thickness is 20~30gm. 3.2 Grounding plate
3.2.1 The material of the grounding plate is ordinary carbon steel plate Q235-A, F, standard
3.2.2 The plane of the grounding plate used to clamp the copper steel bar should be flat. Before tinning or tinning, its surface roughness should not be less than 12.5um, and the coating thickness is 20~30μm. Other surfaces should be painted with anti-rust paint. 3.2.3 The fastening parts of the grounding plate should be galvanized. 3.3 Lightning rod
3.3.1 The material of the steel lightning rod is Q235-A. 2 The material of the copper lightning rod is H62-10.
CB/T3667.3-1995
3.3.3 The steel lightning rod should be galvanized, and the coating thickness should not be less than 30μm. 3.3.4 The contact surface of the lower end of the riveted lightning rod and the connection with the discharge conductor should be flat and tinned or detinned. 3.4 Cable grounding clamp,
3.4.1 The clamp material is pure copper T2 without annealing. 3.4.2 The clamp shall not have burrs, cracks or sharp edges. 4 Inspection rules
Product inspection is divided into factory inspection and type inspection. 4.1 Factory inspection
4.1.1 Products shall be inspected by the manufacturer's inspection department and issued with a certificate of conformity before leaving the factory. 4.1.2 All products shall be inspected in accordance with the requirements of Chapter 3. 4.1.3 5% of each batch shall be sampled, but each model shall not be less than 10. If more than one unqualified product is found in the inspection set, double re-inspection shall be carried out. If there are still unqualified products in the re-inspection, the quality inspection department shall decide whether to return or scrap them. 4.2 Type inspection
4.2.1 Type inspection shall be conducted in any of the following cases: a. new product or old product transfer factory production trial type identification; b. after normal production, if there are major changes in structure and materials, which may affect product performance; c.
d. when the product is resumed after a long-term suspension; e. in normal production, in principle, it shall be conducted once every 4 years. 4.2.2 Type inspection If all the inspections are qualified according to the requirements of Chapter 3, the type inspection is considered qualified. If the sample fails in a certain test, it shall be allowed to retest the single item with 2 times the number of samples. If the retest still fails, the type inspection of the batch of products is considered unqualified. 5 Marking, packaging and storage
5.1 Each product shall have obvious permanent markings, and indicate the model, specification, manufacturer and trademark. 5.2 Products shall be packed according to the same specifications and models, and the packing box shall contain a packing list and factory certificate. 5.3 The packaging boxes and cases shall be marked and marked with: a. Quantity;
Model, specification:
Manufacturer and trademark;
d. Year and month of manufacture;
e. Storage period.
5.4 The products shall be stored in a dry and ventilated warehouse. Additional remarks:
This standard was proposed by the Shipbuilding Technology Sub-Technical Committee of the National Technical Committee for Standardization of Marine Ships. This standard is under the jurisdiction of the 11th Research Institute of China State Shipbuilding Corporation. This standard was drafted by Wuchang Shipyard and the 11th Research Institute of China State Shipbuilding Corporation. The main drafters of this standard are Ni Yuxian and Huang Juxiang. 72
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