The installation of water supply pipe shall be concealed as far as possible, and the support shall be installed after the completion of coating
. 
The lower end of the indoor strong and weak current box is 1.8m above the ground, and the lower end is flush
.
The spray pipes are reasonably arranged, orderly arranged and lined up; the parts are complete, the interface is tight and there is no leakage; the support is correctly selected, firmly installed and evenly spaced; the pipe surface is clean and there is no scratch; the functional test is qualified; the identification is correct
.
The basic requirements of Electrical Engineering: 1
.
The gap between the sleeve and the pipe passing through the floor shall be filled with flame retardant dense material, and the end face shall be smooth
.
The pipeline and support shall be painted evenly without sagging, pinholes and bubbles, and the color shall be consistent
.
The appliance is firmly installed, and the joint with the wall and floor is tight and parallel; the surface of the appliance is clean without pollution, damage and leakage; the bracket is firmly fixed
.
When the indoor diameter is greater than or equal to 110mm, the place where the drainage plastic riser passes through the floor shall be set with fire resistance ring according to the design requirements
.
The basic requirements of water supply and drainage engineering: 1
.
Parallel installation of the same type of socket height difference should not be greater than 1 mm, but smooth, full weld without omission..
.
7
.
The bridge components are complete, the surface is clean, no deformation, the connection is firm, the bridging is accurate, and the grounding is reliable; the bracket is set reasonably and fixed firmly; the fireproof sealing at the wall and floor is tight, and the surface is flat
.
The elevation of the embedded casing is consistent, the pipe orifice is smooth, the height of the casing through the floor is consistent, and the anti-corrosion coating is uniform
.
The cover plates of embedded lamp cap box and junction box shall be installed in place with the same elevation and clear marks; the pipe orifice of embedded through wall (beam) casing pipe shall be smooth, the inside of pipe shall be clean, the elevation shall be consistent and the marks shall be clear
.
The nuts at the joint shall be fastened and the anti loosening parts shall be complete
.
5
.
The sockets and switches shall be firmly installed, the board surface shall be upright and arranged in order; there shall be no gap around, the surface shall be smooth and clean without scratch; the color separation, phase sequence and wiring of wires shall be correct; PE wires shall not be connected in series between sockets
.
The height difference of sockets at the same elevation in the same room shall be less than 5mm
.
3
.
The layout of the garage pipes is reasonable, the spacing is uniform, the signs are eye-catching, the supports are firm, there is no cross pollution, the water meters are arranged neatly, the pipes are horizontal and vertical, and the signs are clear
.
The position shall be level with the floor
.
Expansion joints must be set on each layer of plastic drainage pipe
.
4
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The metal parts or parts of equipotential bonding in the toilet shall be connected with the branch line of equipotential bonding with special wiring bolts and marks
.
The water supply pipeline is installed firmly, horizontally and vertically, with complete components, tight interface and no leakage; the support is selected correctly, installed firmly, and evenly spaced; the pipeline surface is clean and no scratch; the functional test is qualified; the pipeline identification is correct
.
7
.
2
.
8
.
8
.
The distance between pipes can’t change when they cross or change direction
.
4
.
The switch in the box is flexible and reliable, the wiring in the box is neat, the circuit number is complete, and the identification is correct
.
The installation height of the intelligent equipment and the lighting switch in the living room is 1.3 meters from the floor, the lower end is flush, and the distance between the two is 10 cm, keeping vertical
.
The supports of cold and hot water pipes shall be flush
.
The pipeline shall be installed against the wall as far as possible
.
3
.
5
.
The wiring in the box shall be neat without splicing
.
The support shall be installed firmly, and the distance between supports shall meet the specification
.
The distance between the two boxes is 10 cm, and the box is vertical
.
The cross-sectional area of wires pressed on both sides of the screw under the washer is the same, no more than 2 wires are connected on the same terminal, the parts such as locking washer are complete, and the grounding is reliable
.
The drainage pipes are firmly installed with correct slope direction, complete components, tight joints, smooth and unblocked pipes; the supports are correctly selected, firmly installed and evenly spaced; the floor drain is correctly selected, and the water seal meets the requirements; the pipe surface is clean without scratch; the functional test is qualified; and the pipe identification is correct
.
6
.
2
.
6
.
The installation layout of the equipment is reasonable, the arrangement is neat, the fixation is firm, and the elevation is consistent; the operation is normal, safe and reliable
.
When the drainage pipe passes through the floor, the top of the sleeve installed in the floor shall be 2 cm higher than the decorative floor, and the pipe out of the roof and sanitary kitchen shall be 5 cm higher than the decorative floor
.
The pipeline shall be sealed tightly with no gap and smooth surface
.
The lamps and lanterns are firmly installed, the lamps and fittings are complete, and the surface is smooth without damage, deformation, lampshade damage and other defects; when the height from the ground is less than 2.4m, the lamps and lanterns are grounded or connected to neutral reliably
.
The indoor strong and weak current box is firmly installed, the position is correct, and the parts are complete; the opening of the box is suitable for the pipe diameter, and the box cover is close to the wall surface, without scratch and collision
.
