Images of Water and Electricity Renovation in Prefabricated Houses
Although it is not possible to directly provide images of water and electricity renovation in prefabricated houses, detailed key points and precautions for the renovation process can be introduced to help understand it.
Prefabricated houses are built by assembling factory-prefabricated components on-site, and their water and electricity renovation needs to take into account both structural characteristics and living requirements. The core steps of water and electricity renovation include positioning and planning, trenching and wiring, and installation and acceptance. During the positioning and planning phase, the locations of sockets, switches, lighting fixtures, and water inlets and outlets should be determined according to the functional layout of the house. Special attention should be paid to the direction of pre-buried pipelines in prefabricated walls to avoid damaging structural load-bearing components. For example, in the kitchen, dedicated circuits for high-power appliances such as refrigerators, range hoods, and dishwashers should be reserved, and in the bathroom, independent circuits for equipment such as water heaters and smart toilets should be planned.
The trenching and wiring phase must strictly follow safety regulations. Prefabricated walls are mostly made of lightweight materials, and the trenching depth should be controlled between 1.5 and 2 centimeters to avoid damaging internal steel bars or insulation layers. For circuit renovation, it is recommended to use a horizontal and vertical wiring method, with strong and weak electricity laid in separate pipes and trenches, and a spacing of more than 30 centimeters maintained to reduce signal interference. For water pipeline renovation, PPR pipes with hot-melt connections are preferred to ensure the sealing of joints. Cold and hot water pipes should be marked with different colors for distinction, and the hot water pipes should be wrapped with insulation layers to prevent condensation.
During the installation and acceptance phase, three key items need to be checked: First, the electrical system. Use a phase detector to confirm that the live and neutral wires are correctly connected, the ground wire is firmly connected, and all sockets are tested for normal power supply. Second, the water system. Conduct a pressure test at 0.8 MPa and maintain it for 30 minutes without leakage, and check whether the slope of the drainage pipes meets the standard (usually 2%-3%). Third, reserve maintenance access points. Install openable panels at the corners of prefabricated walls or in areas with dense pipelines for easy future maintenance.
Renovation precautions: For water and electricity renovation in prefabricated houses, it is necessary to communicate with the manufacturer in advance to obtain structural drawings and confirm the locations of pre-buried pipelines. Avoid trenching in prefabricated floor slabs. If pipes must be passed through, use yellow wax tubes for protection. Select pipeline specifications that match the original building, for example, it is recommended to use BV single-core hard wires for electrical wires and PPR pipes that meet national standards for water pipes. After the renovation is completed, it is recommended to take panoramic photos for archiving to provide references for subsequent decoration or maintenance.
