Can PE pipes be threaded through residential buildings?

home decoration wiring, many people will tear the choice of threading pipe - PVC pipe is a common option, but can PE pipe be used for residential threading? In fact, this problem has to be combined with the characteristics of PE pipe, the core requirements of residential threading, and construction details to analyze in detail.

PE pipe, the full name of polyethylene pipe, is made of polyethylene as raw material plastic pipe, with corrosion resistance, good flexibility, good insulation characteristics, widely used in water supply and drainage, gas and other fields. However, the PE pipe used for threading is not an ordinary water supply and drain pipe, but a specially designed "PE threading pipe" - the pipe wall is thinner, the inner diameter is more suitable for the wire size, targeted to solve the electrical wiring needs.

First look at the core requirements of residential threading: first, insulation to avoid potential safety hazards caused by wire leakage; second, corrosion resistance, because the wire pipe is mostly buried in the wall or underground, it needs to withstand the erosion of cement and moisture for a long time; third, mechanical strength, can withstand construction extrusion or slight vibration in the later stage; fourth, construction convenience, easy to thread and turn.

Then compare the characteristics of PE pipe: in terms of insulation, PE pipe itself is an inert insulating material, which fully meets the insulation requirements of electrical wiring; in terms of corrosion resistance, PE pipe is not afraid of acid, alkali and moisture, even if buried in the bathroom wall or underground, it will not rust and age like metal pipes; flexibility is its advantage - the bending radius is small, and it can be threaded directly without additional elbows when encountering wall corners, greatly simplifying the construction process; in terms of mechanical strength, the wall thickness and strength of PE pipes (such as SDR11 series) dedicated to threading comply with building electrical codes, as long as they are not directly subjected to heavy rolling (such as in the leveling layer of brick floors), they can fully cope with the mild pressure of indoor environments.

However, PE pipes are used for residential threading, and special attention should be paid to the construction details: first of all, choose the right pipe diameter - the inner diameter of the line pipe needs to be more than 20% larger than the total cross-sectional area of the wire (for example, wear 3 2.5 square copper wires, choose the pipe diameter of φ 20), to avoid threading difficulties due to the small diameter of the pipe; secondly, the connection method, PE pipes must be connected by hot melt or electrofusion (PVC pipe glue cannot be used), and the temperature (about 200-230 ° C) and time need to be controlled during hot melt to prevent deformation or blockage at the connection; furthermore, the laying requirements - PE pipes cannot be directly buried in the initial setting concrete (concrete solidification heat will cause pipe deformation), it is best to wait for the concrete to set before applying the pipe, or use casing protection; finally, the pipeline spacing, PE The distance between the pipe and the hot water pipe and the gas pipe should be kept at least 30cm to avoid high temperature or gas leakage affecting the performance of the line pipe.

is specific to the applicable scenarios, and PE pipe is especially suitable for these situations: buried outdoor wiring (such as garden lights, balcony sockets), wall wiring in humid environments (bathrooms, kitchens), wall wiring that requires frequent turns - these scenarios can give full play to the advantages of PE pipe flexibility and corrosion resistance. And ceiling wiring or areas that need to bear the weight of chandeliers, if you are worried about insufficient PE pipe rigidity, you can solve it by adding fixed points, not absolutely impossible to use.

In summary, PE pipe can be used for residential threading - as long as you choose a dedicated PE pipe for threading and follow the construction specifications, it can not only meet the core needs of insulation and corrosion protection, but also improve the threading efficiency. However, it should be noted that no matter what kind of pipe is selected, it must meet the national "Construction Electrical Engineering Construction Quality Acceptance Standards" and be operated by professional electricians to ensure wiring safety.