<1> Insulation resistance between conductors and between conductors and ground is greater than 0.5MΩ
Qualified: The pipes are laid tightly, the pipe mouth is smooth and the protection is complete, the exposed pipes and their brackets are straight and firm, and arranged neatly, there is no obvious wrinkles at the bends of the pipes, and the paint is intact; the protective layer of the dark pipes is greater than 15mm; the box (box) settings Correct, reliable and reliable, the tube enters the box (box) straight, and the length exposed in the box (box) is less than 5mm; the pipe mouth fixed with the lock nut (nano), the thread of the pipe exposed to the lock nut is 2 ~ 4 buckle; there is a compensation device at the deformation joint, the compensation device can move freely; a protective tube is set through the building and equipment foundation; there is a proper allowance for the wire in the box (box); the wire has no joint in the pipe; The upper mouth of the vertical pipe that does not enter the box (box) is well sealed after threading; the wires are firmly connected, tightly packed, well insulated, and do not hurt the core wire. The grounding branch line is tightly connected, and the grounding (to-zero) line section is selected correctly. The parts that need to be anticorrosive are evenly painted.
Excellent: On the basis of qualification, the position of the nozzle of the line entering the electrical equipment and appliances is correct; the compensation device is flat, the nozzle is smooth, the protection is firm, and the connection with the pipe is reliable; the protective sleeve with the sleeve is correctly marked in the concealed engineering records, The box (box) is clean and free of sundries, the wires are neat, the protective sheaths (protective mouths, protective sheaths) are complete and do not fall off, the grounding branch line is reasonable, the color standard is correct, and the building is not polluted after painting.
<2> Porcelain clip, porcelain pillar (bead) and porcelain bottle wiring project
Qualified: Conductors are strictly forbidden from twisting, dead bending, and insulation damage. The porcelain and its bracket are installed firmly, the porcelain is not damaged, the porcelain bottle is not upside down, the spacing of the wire or porcelain fixing point is correct, the paint of the bracket is complete, the wire is laid straight and tidy, and it is fixed and reliable with the porcelain; pass through the beam and wall There are protective tubes at the floor, the floor, and the crossover line. The two ends of the wire that cross the deformation joint of the building are fixed reliably with appropriate margin. The wire connection is firm, tightly packed, well insulated, and does not hurt the core wire. The wire joint is not subject to tension. .
Excellent: On the basis of qualification, the porcelain pieces are arranged neatly, spaced evenly, and the surface is clean; the wires enter the electrical appliances and are well insulated; the turns and branches are neat.
<3> Sheathed wire wiring project
Pass: Defects such as twisting, dead bending, damage to insulation and sheath break are strictly prohibited. It is strictly forbidden to directly embed the plastic sheathed wire into the plaster layer. The sheath line should be laid straight, neat, and reliable; there are protective tubes passing through beams, walls, floors, and crossing lines; the two ends of the wire that cross the deformation joint of the building are fixed and reliable, and appropriate margins are left; the sheath The wires are firmly connected, tightly packed, well insulated, and do not damage the core wire; the connectors are located in the junction box or electrical appliances; there are no connectors in the board; the wires are horizontal and vertical.
Excellent: On the qualified basis, the exposed part of the wire is closely attached to the building surface; multiple parallel layings are uniformly spaced, and the branches and elbows are neat; the terminal box is correctly positioned, the box cover is complete and flat, and the conductor enters the terminal box or electrical appliance Leave an appropriate margin.
<4> Slot board wiring project
Qualified: The slot plate laying should be close to the building surface, and it should be fixed and reliable, horizontal and vertical. The cover plate interface and the bottom plate interface of the straight section are staggered, and the spacing is not less than 100mm. There is no distortion of the plastic groove plate; the groove plate line passes through the beam, wall and floor with protective tubes; the groove plate is broken across the deformation joint of the building, and the wire is sleeved to protect the hose and leave a proper margin to protect the hose and the The slot plate is tightly bonded; the wires are firmly connected, tightly packed, well insulated, and do not hurt the core wire, and there are no connectors in the slot plate.
Excellent: On the basis of qualification, the slot plate is reasonably arranged along the building surface, and the cover plate has no warping angle; the branch joint is made of T-shaped triangle forks, and the interface is tight and tidy; the surface of the slot plate is uniform and non-polluting; wiring and electrical appliances, wood The table is tightly connected and the wires are not exposed; the connector is set in the appliance or the junction box.
<5> Wire rope engineering for wiring
Qualified: The terminal pull ring must be fixed firmly, the tension adjustment device is safe, and the cable end uses a special metal clamp, the number of which is not less than 2. The distance between the middle fixing points of the steel cable is not greater than 12m; the hook reliably supports the steel cable, and the suspension rod or other supporting points are under normal stress; the suspension rod is not skewed, and the paint is complete; , The parts that need to be anticorrosive are evenly painted.
Excellent: On the basis of qualification, the lifting points are uniform, the surface of the cable is clean, the galvanized steel cable has no rust, and the sheath of the plastic sheathed steel cable is intact. The spacing of the fixed points is the same, and the relaxation of the steel cables is the same. The grounding line is reasonable, the color standard is correct, and the equipment and buildings will not be polluted after painting.
Guangdong Renfeng Industrial Co., Ltd. is currently one of the rare laboratory design and construction solution providers in China. The company has a professional laboratory design team, laboratory decoration construction teams covering the country, and its own laboratory furniture factory. The company specializes in laboratory design, laboratory furniture production and laboratory decoration engineering, laboratory ventilation and purification engineering, laboratory professional equipment consumables sales, laboratory information management system construction and other services.
Address: Room 215, No. A01, Guangdong South China Testing Park, No. 78, Luntou Road, Haizhu District, Guangzhou
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