Acceptance of water supply waterway:
1, the acceptance of waterway renovation in home improvement evolved according to the acceptance standard of building water supply. At present, there is no specific express provision for the acceptance of home improvement waterway in the industry. Ordinary residential acceptance method is:
(1) Connect all indoor hot and cold water supply pipes through hoses to form a loop. The pipe is filled with water (air). Turn off the switch of the main water supply valve (it must be sealed tightly, otherwise the data will be inaccurate. If the main valve leaks water, it will be handled separately). Use manual or automatic pressure test pump to test the pressure. The experimental pressure exceeds the working pressure 1.5 times, generally 0.05MPa. In case of the experimental water pressure of duplex or multi-storey villa, the experimental time can be appropriately extended. (2) Water outlet test.
In addition, the authoritative document "Code for Acceptance of Construction Quality of Building Water Supply, Drainage and Heating Engineering" is attached. The key points of inhibition test method and home improvement daily test method are that time and test value have certain changes, and the results are consistent.
4.2. 1 The hydrostatic test of indoor water supply pipeline must meet the design requirements. When there are no regulations in the design, the test pressure of water supply pipeline system made of various materials is 1.5 times the working pressure, but not less than 0.6MPa. Inspection method: observe the water supply pipeline system of metal and composite pipe under the test pressure 10min, and the pressure drop should not be greater than 0.02MPa, and then drop to the working pressure for inspection, and there should be no leakage; The plastic pipe water supply system should be stable under the test pressure 1h, and the pressure drop should not exceed 0.05MPa, and then it should be stable for 2 hours under the working pressure 1. 15 times, and the pressure drop should not exceed 0.03MPa. At the same time, all joints should be checked for no leakage.
4.2.2 Before the water supply system is delivered for use, it must be tested and recorded.
Acceptance of drainage channel:
1, a new sewer pipe was used for irrigation experiment, with smooth drainage and qualified wall leakage prevention.
2. Pay attention to the finished product protection after the sewer pipe is finished, so as to prevent the loss caused by the second impact of man-made foreign objects.
Circuit acceptance test:
65438+ lighting passed the lighting test. For houses that are completely rewired indoors, such as villas and old houses (second-hand houses), it is necessary to test the insulation resistance with a 500V insulation resistance meter. According to the standard, the grounding protection should be reliable, and the insulation resistance between wires and between wires and ground should be greater than 0.5MΩ.
2, weak current test weak current test can use pointer or digital multimeter to test the signal on and off. For multi-core signal lines such as networks, a special tester can be used for testing.
Other matters needing attention in acceptance (some items have been mentioned in the construction standards, and are not listed separately here):
1, after the construction, check whether there are any omissions in the achievements of hydropower transformation and design scheme, and timely check and fill the gaps.
2. Verify whether the error between the settlement quantity and the budgeted quantity exceeds 65,438+00% and there is no change during the construction.
3, hydropower construction personnel statistics switch socket panel number, model, submitted to the owner in writing.
4, wire joint is firm, threads are not allowed to be exposed.
5. The center distance between the outlet of the mixing valve of the bathtub is 15CM, and the center distance between the outlet of the hot and cold water of the electric water heater is 10CM. The depth of outlet wall is consistent, and the horizontal error of outlet is consistent.
6. Test the depth error of the bath water pipe outlet. The horizontal error of the water outlet must be measured with a level with a horizontal bead, and the horizontal bead should be centered. After the test, it is necessary to go through the handover procedures to prevent the bricklayer from hammering the nozzle crooked during construction.
7. Each independent room shall have at least one socket panel for temporary construction, and a faucet for temporary construction shall be installed after construction. 8. Electric pipes and water pipes cannot be in the same tank. If the space is limited, it is necessary to make cement mortar separation beams between hydropower pipelines.
9. Junction boxes with wire joints shall not be directly backfilled with cement mortar or gypsum materials, and manholes shall be reserved.
10. Generally, the electric pipes in the bathroom cannot go through the roof. If it is unavoidable, the PVC electric pipe on the ground must ensure that the whole pipe is not connected.