JB/T 8774.15-1998 Products produced according to this standard comply with the relevant provisions of GB/T 5226.1-1996 "Electrical Equipment for Machinery Industry Part 1: General Technical Conditions". This standard specifies the types and structures, main dimensions, markings, technical requirements, tests and inspections of plastic-coated metal hoses (hereinafter referred to as hoses), which are accessories for machine tool electrical systems. This standard applies to plastic-coated metal hoses that protect cables or wires in machine tool electrical systems. It can also be used as a reference for electrical systems of other machines. JB/T 8774.15-1998 Plastic-coated metal hoses, accessories for machine tool electrical systems JB/T8774.15-1998 Standard download decompression password: www.bzxz.net

Machinery Industry Standard of the People's Republic of China
JB/F8774.1--8774.15—1998
Machine Tool Electrical System Accessories
1998-07-17 Issued
State Machinery Industry Bureau
1998-12-01 Implementation
JE/T6774.15-1998
This standard is made after summarizing the experience of many years in producing machine tool electrical system accessories. The products produced according to this standard shall comply with GB/T5226.11996 Machinery Electrical Models, Part 1: General Technical Conditions and Related Fees: This standard is proposed by the National Machine Tool Standardization Technical Committee and is under the jurisdiction of the Beijing Machine Tool Research Institute of the Ministry of Machinery Industry. The starting point of this standard is: Beijing Machine Tool Research Institute of the Ministry of Machinery Industry, Huizhilaojiang Machine Tool Accessories! , Jiangsu Brand Jiangshi Jinkuanguan! Beijing No.1 Machine Tool Factory, Beijing No.1 Machine Tool Factory,
Machinery Industry Standard of the People's Republic of China
Machine Tool Electrical System Accessories
Plastic Coated Metal Hose
JB/T 8774.15—J998
This standard specifies the types and structures of plastic-coated hoses (hereinafter referred to as hoses) in machine tool electrical systems, especially the requirements for size, marking, testing and inspection.
This standard is applicable to the plastic-coated hoses of cables or wires in machine tool systems. Electrical system engineers of other machines should refer to the referenced standards
The small standard contains the provisions, which will become the provisions of this standard when they are included in this standard. When this standard is published, the version shown is effective. All parts of the standard may be revised, and the parties using this standard should explore the possibility of using the following standard to develop a new version. GB 343-54—Low Carbon Fiber
G7364--83| |tt||S8S1AA
3 types and structures
P type chain welding metal hose
cable cable with sensitive case oxygen suspected plastic
compared with two kinds of Lang Bao Yi Jinke hose and braided Jinke. Its structure is shown in the figure! : National original area
F installation all kinds of fast world
performance in more effective bone
domestic weaving gold high transfer kidney
National Machinery Industry Bureau 149817 approval
with effective inquiry
1-12 actual
main dimensions
the main dimensions of the hose are shown in Table 1.
special inner grabwww.bzxz.net
minimum diameter
J/T8774.15-1998
plastic package enterprise style Hose
1> Braiding should be long-term supply multiple professional
braided thick hose
minimum sharing element
teaching business standard name, firm, nominal inner diameter and standard number, such as the nominal inner diameter of 5 type A plastic coated metal hose mark: give exchange
minimum college
soft joint 15JE/18774.15-1998
such as the nominal inner diameter of 15 type B braided metal hose mark: hose 15J3/T8774.13-1998
technical requirements
6.1 the tube should comply with the provisions of GB8641.
plastic coated thick tube
maintenance. 2 soft general allow the use of exhaust welding Reverse connection, welding point should be repaired and smooth, outer diameter size should comply with (31 specification deviation. 6.3 The inner and outer surfaces of the hose should be smooth, and there should be no light deficiency of the wire system. 6.4 Hose roll length, if special order, should be in accordance with 2. Table 2
Nominal inner size of hose
Association
6.5 Other wind material composition conforms to GB8915 thermal regulations, 2c~·25
6.6 The color of the covering layer is generally 32--51
Braided fittings turn tube
6.7 The plastic layer is fully covered on the outer surface of the whole software and is attached to it, or spirally covered, in the ambient temperature 6
JB/ 8774.151998
-10~50C conditions, no cracking, no other defects. 6.B The remaining wire sequence of the braided layer meets the requirements of GB/343. 6. "The gap between the shrinkage and the expansion is flat. The braiding is not allowed to have more than the root of the wire in each meter of length. 6.10 The final joint is allowed, but it must be corrected. The wire head must be inserted into the braided well and must not be exposed. 11 The braided layer is exposed. For the flexible surface, the nominal diameter of 38m is 75% and the nominal diameter of 51m is 5512. For the surface or packaging of the hose, the method of eliminating the tip should be used. The nominal inner diameter of the hose should be the center of the nominal inner diameter. 7 Tests and inspections
7.1 The materials, size (state), and weight should all comply with the provisions of Sections 4 and 6. 7.2 Tensile test
The effective length is adopted. For hoses with a nominal inner diameter of about 12mm, pull them along their axis with 900N, and for hoses with an inner diameter of 15mm, add 15GcN; keep them for 1 minute, and the hose shall not be loosened at any front part. The metal effect hose shall be subjected to tensile test before braiding the metal wire.
7.3 Flame test
For ... The metal effect hose shall be subjected to tensile test before braiding the metal wire. The metal effect hose shall be subjected to tensile test before braiding the metal wire. The metal effect hose shall be subjected to tensile test before braiding the metal wire. The metal effect hose shall be subjected to tensile test before braiding the metal wire. The metal effect hose shall be subjected to tensile test before braiding the metal wire. The metal effect hose shall be subjected to tensile
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