Have you learned about the structure of your house, do you know the pipe lines that are buried under the cement and buried underneath? Not everyone is a professional plumber, nor is it necessarily Individuals are bricklayers, and you may not be clear about the structure of the house, but if there is a problem with the circuits or pipes that are buried in the ground one day, do you have to repair them, or must you change them? Then the user is most concerned about the kbg pipe construction specification . In order to solve the above problems, you must be aware of the relevant knowledge of the kbg tube construction specification .
What is the kbg tube
KBG tube, also known as the national standard buckle type conduit, KBG series steel conduit made of high-quality thin-walled plate, double-sided cold galvanized all-round 360 ° protection. Pipes and fittings do not need to be connected across the grounding cable. They are developed for the installation of electrical lines such as ceilings and surface mounts. Meet the modern energy conservation and environmental protection mainstream development direction. It is used by commercial, civil, and public electric lines in major cities in China, especially for temporary or short-term use.
Light weight: Under the condition of guaranteeing the certain strength of the pipe, the thickness of the pipe wall is reduced, so that the pipe can bring great convenience to the installation, loading, handling and transportation.
The price is cheap: The wall of the pipe is replaced by a thin wall instead of a thick wall, which saves steel and reduces the price per unit length of the pipe, thereby reducing the construction cost.
Kbg tube specification
Available &16. &20 &25 &32 &40 &50
Kbg tube price
Due to the difference in the kbg tube model, the price of course will be different, kbg tube prices are probably ranging from a few dollars to tens of dollars.
Note: This price is for reference only! Due to geographical differences, of course, the price will be different. For more details on the prices, please refer to the local distributors!
The difference between jdg tube and kbg tube
KBG tube, buckled thin-walled galvanized steel pipe. The pipe fittings are crimped. Compared with JDG, they are only connected in different ways. In actual use, both are used more often.
Kbg tube construction specification
As the KBG pipe is a new type of pipe, the existing construction and acceptance specifications do not involve the construction and inspection of the pipe. In order to standardize the construction and acceptance of the KBG pipe, the Distribution Engineering Committee of the Electrical Engineering Committee of the China Engineering Construction Standardization Association, together with the relevant authorities, has compiled the “Construction and Acceptance Criteria for Sleeve-buckled Type Thin-Wall Steel Conduit Wire and Pipeline†(abbreviated as Specification). China Construction Engineering Standards Association approved facilities numbered "CECS100:98". The relevant parts are now excerpted as follows, so that in the project design and construction, according to this specification.
1. KBG tubes and wires shall not pass through the foundations of buildings, structures or equipment. When it is necessary to pass through, separate protective tubes or other measures should be taken.
2. The KBG pipe and wire pipelines shall be installed with compensation devices fixed at both ends through settlement joints or expansion joints of buildings.
3. In addition to the provisions of this Code, the construction and acceptance of the laying of KBG tubes and wires and the threading of tubes shall comply with the relevant national regulations.
4. The laying of the KBG pipes and wires shall be at the bend, and there shall be no defects such as wrinkles, dents, cracks, etc. The bent flatness of the pipes shall not exceed 10% of the outer diameter of the pipe.
5. When the KBG tube electric line is laid, the specifications of the bracket and hanger shall not be less than the following when the design is not required:
1) Round bar: 6mm in diameter.
2) Flat steel: 30mm x 3mm.
3) Angle steel: 25mm x 25mm x 3mm.
4) The buried stent should have a dovetail, and the buried depth should not be less than 80mm.
6. The allowable deviation of the horizontal or vertical installation of the KBG pipe line pipe when it is laid horizontally or vertically is 1.5 ‰. The full-length deviation should not exceed 1/2 of the inner diameter of the tube.
7. When the KBG tube electric line is laid, the arrangement should be neat, and the fixed point should be firm and evenly spaced.
8. The distance between the equipment and the terminal, elbow midpoint, electrical appliance or box (box) edge of the KBG pipe and cable shall be 150-300mm.
9. When the KBG pipe and wire pipeline is embedded in the wall or concrete, the net distance between the pipeline and the wall or concrete surface should not be less than 15mm.
10. When the KBG pipe wire pipe is laid darkly, the pipe fixing point shall be firm and shall comply with the following provisions:
(1) Pipes and steel bars laid in reinforced concrete walls and floors shall be fixed and fixed, and the spacing between the fixed points shall not be greater than 1000mm;
(2) The pipeline laid in brick walls and masonry walls shall not be wider than the outer diameter of the pipe by 5mm. Fixed point spacing should not exceed 1000mm;
(3) The pipeline laid on the prefabricated round hole plate shall be smooth and close to the surface of the plate. The spacing between the fixed points shall not be greater than 1000mm.
11. KBG pipe and pipe connections should be used special tools, should not hit the formation of pressure points. Do not weld
connection. When the pipeline is laid horizontally, the deduction point should be depressed at the upper and lower sides of the pipeline respectively. When the pipeline is laid vertically, the deduction point should be deducted on the left and right sides of the pipeline respectively.
12. KBG pipe and wire pipelines, when the pipe diameter is Φ25 and below, the pressure drop point should not be less than 2 at each end; when the pipe diameter is Φ32 and above, the pressure drop point should not be less than 3 at each end. The buckle point should be symmetrical and the spacing should be uniform. Buckling point depth should not be less than 1.0mm. And withholding firm, smooth surface, smooth tube. The concaves and convexes formed by the pressure of the tube wall should not have hairs.
13. When the KBG tube enters the box (box), it shall be one hole and one tube, and shall be connected with a threaded joint. At the same time, it shall be locked. The connection between the tube and the box shall be a type I threaded joint. The connection between the tube and the box shall adopt a type II spiral mosquito joint ( Also known as claw-type threaded joints).
14. The wire pipeline composed of the KBG tube and its metal accessories, when the pipe and the pipe, the pipe and the box (box) are connected in accordance with the above-mentioned pipe connection regulations, the jumper may not be provided at the connection. Pipeline shell should be reliably grounded. But no welding connection. It must not be used as a ground wire for electrical equipment.
Editor's summary: The kbg tube is in line with the theme of modern energy conservation and environmental protection. It also provides security for construction and eliminates construction safety hazards. It is understood that the kbg tube construction specification not only expands their knowledge but also helps their own life. For more information, please continue to pay attention to our website, follow-up will show more exciting content.
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