Plastic slot wiring
1 scope
The technology standard is suitable for use in dry indoor electrical wiring project clearly.
2 construction preparation
2.1 material requirements:
2.1.1 plastic trough: consists of the bottom of the channel, slot cover and accessories, it is made of flame retardant type of HPVC engineering plastics extrusion molding, blame combustion type material processing is strictly prohibited. When choosing the plastic trough, should choose model according to the design requirements and specifications corresponding to finalize the design product. Its installation site of the ambient temperature shall not be less than 15 ℃, the oxygen index should not be less than 27%. Above the trough inside and outside should be smooth edges, should not be distorted, become warped edge deformation phenomenon. And the product certificate.
2.1.2 insulated wires: type, specification of the wire must comply with the design requirements, line slot line core wire laying minimum allows section: copper wires was 1.0; Aluminum conductor was 2.5.
2.1.3 screw connection button: should according to the conductor cross section and the number of wires, select the corresponding models of spiral wire reinforced insulation steel shell button.
2.1.4 LC secure line pressing cap please see 3 to 8, 2.1.5 related content.
2.1.5: casing pipe with copper, aluminum casing pipe and copper aluminum casing three transition, when choose, should adopt corresponding with the material of the casing with wire specifications.
2.1.6 terminal (wiring nose) : when choose, should according to the number of the wire and total cross section, choose corresponding specifications of the terminal.
2.1.7: wooden brick made from wood ladder, when using, should do the anti-corrosion treatment.
2.1.1 plastic expansion tubes, choose, its specifications should be tighten with load corresponding to the electrical appliances, and select the same type of round head machine screws and washers.
2.1.9 galvanized materials: metal material choice, should choose after galvanized processing of round steel, flat steel, Angle steel, screws, bolts, nuts, washers, spring washers and so on. The galvanized metal materials needed derusting and anticorrosive processing.
2.1.10 auxiliary materials: bit, solder, flux, welding electrode, oxygen, acetylene gas, mixed paint, antirust paint, rubber insulation tape or sticky plastic insulation tape, black tape, gypsum, etc.
2.2 the main equipment:
2.2.1, tape measure, line drop, chalk line pencil bags, electrician common tools, live wrench, hammer and chisel.
2.2.2 hacksaw, hacksaw blade, burner, tin tin pot, spoon, solder and flux.
2.2.3 hand electric drill, hammer, multimeter, megohmmeter, tool bag, tool box, high stool, etc.
2.3 operation conditions:
2.3.1 embedded with civil engineering structure construction protection tube, wood and brick and holes reserved.
2.3.2 roof, metope and ground, paint, paste to live complete.
3 operation process
3.1 process:
Elastic line positioning - trough fixed - line slot connection - groove, pay-off - wire connection - line inspection insulation shake test
3.2 play line positioning:
3.2.1 line location shall meet the following requirements
3.2.1.1 trough wiring through floor or wall, protection tube, and floor board must be protected with steel tube, the protection height above the ground shall not be lower than 1.8 m; Installing a switch can lead to the position of the switch.
3.2.1.2 deformation seam should do compensation processing.
3.2.2 line positioning method
According to the blueprints to determine in household electrical appliances such as line, box, box fixed point position, from beginning to end (after the first main feeder) looking for a good horizontal or vertical line, use chalk line bags play line, in the center of the line points are, draw out and file location, fine again to check whether the wooden brick is complete, the position is correct, otherwise should be timely completion. Then drilling in mounting position, buried plastics pipe expanding or umbrella bolt. Bullet line should not be soiled surface buildings.
3.3 trough is fixed:
3.3.1 wooden brick fixed trough:
Cooperate in construction of civil engineering structure embedded wooden brick; Aerated brick walls or stuck between hole and then buried wooden brick, trapezoidal wooden brick larger side should be in the hole, the surface level and the structure of the surface, then use cement mortar screeding, after being solidified, then the trough bottom use wood screws on the wood block, as shown in figure 3-60.
3.3.2 rainfall distribution on 10-12 plastic tube expanding fixed trough:
Concrete wall, brick wall can use plastics tube expanding fixed trough. Choose according to expansion pipe diameter and length of the drill bit, mark on the mounting position of the drilling, should not be skewed, gouges where whole pieces were missing, should be good vertical drilling hole, the hole residual impurities clean, the plastic tube expanding vertically with wooden hammer knock manhole, flush with building surface, the flat with gypsum aperture fill again. With semicircle TouShui screws and washers trough plate fixed on the plastic expansion tubes, close to the surface of buildings. Should be fixed at both ends, and then fixed in the middle, at the same time looking for trunk line groove bottom, horizontal flat vertical, and laying along the surface shape. The wood screw sizes are shown in table 3-34, with a plastic tube expanding slot installed as shown in figure 3, 61
3.3.3 umbrella bolted trough:
In gypsum board wall on the wall, or other available umbrella bolted plastic wire slot, according to the elastic thread positioning, find the mounting position, the trough bottom transverse flat vertical ground close to the surface of the building, after a good drill hole will umbrella bolt two umbrella folded leaves squeeze into the hole, after being folded umbrella leaves open on its own, reoccupy nut fastening, show line groove part should add sets of plastic pipe. Fixed trough, should be fixed at both ends fixed in the middle again. Umbrella bolt installation, as shown in figure 3-62 and umbrella bolt structure as shown in figure 3-63.
3.4 slot connection:
Joint trough and accessories should be tight level off, without aperture, close to the biggest space are shown in table 3-35 buildings protection.
3.4.1 track groove bottom line segment docking and slot cover:
Tank bottom fixed point spacing should be not less than 500 mm, flat should be no less than 300 mm, base plate from the finish line 50 mm termination point of the plate distance and 30 mm shall be fixed. Three trough trough bottom application of double nail fixation. The bottom of the channel of joint and slot cover the seam should be staggered not less than 100 mm.
Branch joint 3.4.2 trough, trough accessories such as direct, tee corner, connectors, sockets, box, box should use the same fabric of styling products. The bottom of the channel, the tank cover and various accessories relatively, juncture place should be sealed, fixed tightly as shown in figure 3-64.
Rule 3.4.3 trough various accessories installation requirements:
3.4.3.1 box shall be fixed at two o 'clock, all kinds of accessories Angle, corner, three links, such as fixed point should not be less than two (except card mounted).
3.4.3.2 junction box, the lamp box should adopt the corresponding socket connection.
3.4.3.3 trough terminal terminal head seal should be adopted.
3.4.3.4 corresponding junction box should be adopted in line branch tapping.
3.4.3.5 installation of aluminum alloy decorating plate, solid flat sealed.
3.5 slot pay-off
3.5.1 track of cleaning trough. When pay-off, cloth first remove contamination of groove, make slot inside and outside clean.
3.5.2 pay-off. Conductor let go straighten first, after the sequence into the circle, placed in a steel frame, from the beginning to the end (main branch) after first put while finishing, wire should be straight, can not have extrusion, the back button, snarling and damaged. Binding wire should use nylon tie belt, are not allowed to use a metal silk tie. In the junction box of conductor is reserved length should not exceed 150 mm. Slot is not allowed within the joint, wire connector should be on terminal box; Introduced from outdoor indoor wires in the wall of a rubber insulated wire, plastic insulated wire is strictly prohibited. At the same time, the outer edge of the wall protection tube should be waterproof measures.
3.6 wire connection:
Wire connection should be minimum contact resistance between the junction, not lower mechanical strength, and restore its original dielectric strength. Connection, should distinguish between phase line and neutral line, protect the earth. Can use the color of the insulated wires, or use instrument testing periods, check the correct before connection. Wire even meet with 3 to 8, section 3.8 relevant content.
3.7 line inspection insulation shake please see section 3, 8, 3.8.
4 quality standards
4.1 ensure projects:
Between wires and wire to ground insulation resistance must be greater than 0.5 finally Mfl.
Methods: the measured or check the insulation resistance test records.
4.2 the basic items:
2 trough plate installation shall meet the following requirements: trough plate close to the surface of the building, layout reasonable, fixed reliable, the horizontal rows. Straight segment of the flat interface with bottom interface should be staggered, the spacing of not less than 100 mm. Cover plate without distortion and deformation phenomenon, newborn interface for neat and trough plate surface colour and lustre even no pollution.
Inspection method: to observe the examination.
4.2.2 trough plate line protection shall meet the following requirements: line across the beam, column, wall and floor slab has the protection tube, trough plate across the building deformation joints disconnect, jacketed wires the hose and with appropriate allowance, the hose should be put inside trough plate. Circuit connected to the electrical appliances, plastic cone flat, wire no nudity, fixed firmly.
Inspection method: to observe the examination.
Holdings of wire connection shall meet the following requirements: connection is firm, bandage tightly, good insulation, not wound wire core, there is no joint in the trough plate, joint on appliances or terminal box.
Inspection method: to observe the examination.
4.3 allowable deviation projects:
Trough board wiring allowable deviation and inspection methods shall comply with the terms of table 3-36.
Trough board wiring table test method of allowable deviation and 3-36
Will project allowable deviation square method (mm)
1
2 apply horizontal or vertical
The degree of straight line straight set
The vertical straight degree 5
5 arrows, scale quantity check
Guy, 'quantity check
5 finished product protection
5.1 the plastic trough wiring, installation should pay attention to maintain a clean and tidy metope.
After completion of 5.2, welding, package, lifted the lid and tank cover all should cover sealed formation, conductor is not permitted in the leakage phenomenon.
5.3 plastic slot wiring is completed, can not spray, brush oil again, in order to prevent the conductor and electrical appliances being polluted.
6 should pay attention to quality problems
6.1 trough with dust and debris, to the slot should be taken before wiring the clean dust and sundries.
6.2 trough bottom plate is loose and view as have become warped edge, tube expanding or brick, wood screws not tight; Trough plate itself is a problem with the quality. Fixed soleplate, should first will wood brick or tube expanding fixed firmly, then fixed screw. The slot should choose qualified products.
6.3 trough plate interface is lax, gap is too big and there are wrong. Operation should be carefully will cover interface for good, avoid is wrong.
6.4 trough conductor is placed in clutter, wiring, wire straightening out, should be tie into a bundle.
6.5 circuits of different voltage grade are placed in the same slot. Operation shall, in accordance with requirements of the drawings and specification separate lines of different voltage grade. The same voltage grade of wire slot can be put in the same line.
6.6 slot wire section and root number than trough allow rules. Should be wiring as required.
6.7, welding, package is not in conformity with the requirements. Should be timely correction as required.
7 quality records
7.1 insulation wire and plastic wire slot products certification.
7.2 plastic wire slot wiring project installation must be checked, self-inspection, mutual inspection records.
7.3 design changes regarding the record, record drawings.
7.4 plastic slot wiring subentry engineering quality inspection records. , to borrow trough board wiring table)
7.5 the electrical insulation resistance.
1 scope
The technology standard is suitable for use in dry indoor electrical wiring project clearly.
2 construction preparation
2.1 material requirements:
2.1.1 plastic trough: consists of the bottom of the channel, slot cover and accessories, it is made of flame retardant type of HPVC engineering plastics extrusion molding, blame combustion type material processing is strictly prohibited. When choosing the plastic trough, should choose model according to the design requirements and specifications corresponding to finalize the design product. Its installation site of the ambient temperature shall not be less than 15 ℃, the oxygen index should not be less than 27%. Above the trough inside and outside should be smooth edges, should not be distorted, become warped edge deformation phenomenon. And the product certificate.
2.1.2 insulated wires: type, specification of the wire must comply with the design requirements, line slot line core wire laying minimum allows section: copper wires was 1.0; Aluminum conductor was 2.5.
2.1.3 screw connection button: should according to the conductor cross section and the number of wires, select the corresponding models of spiral wire reinforced insulation steel shell button.
2.1.4 LC secure line pressing cap please see 3 to 8, 2.1.5 related content.
2.1.5: casing pipe with copper, aluminum casing pipe and copper aluminum casing three transition, when choose, should adopt corresponding with the material of the casing with wire specifications.
2.1.6 terminal (wiring nose) : when choose, should according to the number of the wire and total cross section, choose corresponding specifications of the terminal.
2.1.7: wooden brick made from wood ladder, when using, should do the anti-corrosion treatment.
2.1.1 plastic expansion tubes, choose, its specifications should be tighten with load corresponding to the electrical appliances, and select the same type of round head machine screws and washers.
2.1.9 galvanized materials: metal material choice, should choose after galvanized processing of round steel, flat steel, Angle steel, screws, bolts, nuts, washers, spring washers and so on. The galvanized metal materials needed derusting and anticorrosive processing.
2.1.10 auxiliary materials: bit, solder, flux, welding electrode, oxygen, acetylene gas, mixed paint, antirust paint, rubber insulation tape or sticky plastic insulation tape, black tape, gypsum, etc.
2.2 the main equipment:
2.2.1, tape measure, line drop, chalk line pencil bags, electrician common tools, live wrench, hammer and chisel.
2.2.2 hacksaw, hacksaw blade, burner, tin tin pot, spoon, solder and flux.
2.2.3 hand electric drill, hammer, multimeter, megohmmeter, tool bag, tool box, high stool, etc.
2.3 operation conditions:
2.3.1 embedded with civil engineering structure construction protection tube, wood and brick and holes reserved.
2.3.2 roof, metope and ground, paint, paste to live complete.
3 operation process
3.1 process:
Elastic line positioning - trough fixed - line slot connection - groove, pay-off - wire connection - line inspection insulation shake test
3.2 play line positioning:
3.2.1 line location shall meet the following requirements
3.2.1.1 trough wiring through floor or wall, protection tube, and floor board must be protected with steel tube, the protection height above the ground shall not be lower than 1.8 m; Installing a switch can lead to the position of the switch.
3.2.1.2 deformation seam should do compensation processing.
3.2.2 line positioning method
According to the blueprints to determine in household electrical appliances such as line, box, box fixed point position, from beginning to end (after the first main feeder) looking for a good horizontal or vertical line, use chalk line bags play line, in the center of the line points are, draw out and file location, fine again to check whether the wooden brick is complete, the position is correct, otherwise should be timely completion. Then drilling in mounting position, buried plastics pipe expanding or umbrella bolt. Bullet line should not be soiled surface buildings.
3.3 trough is fixed:
3.3.1 wooden brick fixed trough:
Cooperate in construction of civil engineering structure embedded wooden brick; Aerated brick walls or stuck between hole and then buried wooden brick, trapezoidal wooden brick larger side should be in the hole, the surface level and the structure of the surface, then use cement mortar screeding, after being solidified, then the trough bottom use wood screws on the wood block, as shown in figure 3-60.
3.3.2 rainfall distribution on 10-12 plastic tube expanding fixed trough:
Concrete wall, brick wall can use plastics tube expanding fixed trough. Choose according to expansion pipe diameter and length of the drill bit, mark on the mounting position of the drilling, should not be skewed, gouges where whole pieces were missing, should be good vertical drilling hole, the hole residual impurities clean, the plastic tube expanding vertically with wooden hammer knock manhole, flush with building surface, the flat with gypsum aperture fill again. With semicircle TouShui screws and washers trough plate fixed on the plastic expansion tubes, close to the surface of buildings. Should be fixed at both ends, and then fixed in the middle, at the same time looking for trunk line groove bottom, horizontal flat vertical, and laying along the surface shape. The wood screw sizes are shown in table 3-34, with a plastic tube expanding slot installed as shown in figure 3, 61
3.3.3 umbrella bolted trough:
In gypsum board wall on the wall, or other available umbrella bolted plastic wire slot, according to the elastic thread positioning, find the mounting position, the trough bottom transverse flat vertical ground close to the surface of the building, after a good drill hole will umbrella bolt two umbrella folded leaves squeeze into the hole, after being folded umbrella leaves open on its own, reoccupy nut fastening, show line groove part should add sets of plastic pipe. Fixed trough, should be fixed at both ends fixed in the middle again. Umbrella bolt installation, as shown in figure 3-62 and umbrella bolt structure as shown in figure 3-63.
3.4 slot connection:
Joint trough and accessories should be tight level off, without aperture, close to the biggest space are shown in table 3-35 buildings protection.
3.4.1 track groove bottom line segment docking and slot cover:
Tank bottom fixed point spacing should be not less than 500 mm, flat should be no less than 300 mm, base plate from the finish line 50 mm termination point of the plate distance and 30 mm shall be fixed. Three trough trough bottom application of double nail fixation. The bottom of the channel of joint and slot cover the seam should be staggered not less than 100 mm.
Branch joint 3.4.2 trough, trough accessories such as direct, tee corner, connectors, sockets, box, box should use the same fabric of styling products. The bottom of the channel, the tank cover and various accessories relatively, juncture place should be sealed, fixed tightly as shown in figure 3-64.
Rule 3.4.3 trough various accessories installation requirements:
3.4.3.1 box shall be fixed at two o 'clock, all kinds of accessories Angle, corner, three links, such as fixed point should not be less than two (except card mounted).
3.4.3.2 junction box, the lamp box should adopt the corresponding socket connection.
3.4.3.3 trough terminal terminal head seal should be adopted.
3.4.3.4 corresponding junction box should be adopted in line branch tapping.
3.4.3.5 installation of aluminum alloy decorating plate, solid flat sealed.
3.5 slot pay-off
3.5.1 track of cleaning trough. When pay-off, cloth first remove contamination of groove, make slot inside and outside clean.
3.5.2 pay-off. Conductor let go straighten first, after the sequence into the circle, placed in a steel frame, from the beginning to the end (main branch) after first put while finishing, wire should be straight, can not have extrusion, the back button, snarling and damaged. Binding wire should use nylon tie belt, are not allowed to use a metal silk tie. In the junction box of conductor is reserved length should not exceed 150 mm. Slot is not allowed within the joint, wire connector should be on terminal box; Introduced from outdoor indoor wires in the wall of a rubber insulated wire, plastic insulated wire is strictly prohibited. At the same time, the outer edge of the wall protection tube should be waterproof measures.
3.6 wire connection:
Wire connection should be minimum contact resistance between the junction, not lower mechanical strength, and restore its original dielectric strength. Connection, should distinguish between phase line and neutral line, protect the earth. Can use the color of the insulated wires, or use instrument testing periods, check the correct before connection. Wire even meet with 3 to 8, section 3.8 relevant content.
3.7 line inspection insulation shake please see section 3, 8, 3.8.
4 quality standards
4.1 ensure projects:
Between wires and wire to ground insulation resistance must be greater than 0.5 finally Mfl.
Methods: the measured or check the insulation resistance test records.
4.2 the basic items:
2 trough plate installation shall meet the following requirements: trough plate close to the surface of the building, layout reasonable, fixed reliable, the horizontal rows. Straight segment of the flat interface with bottom interface should be staggered, the spacing of not less than 100 mm. Cover plate without distortion and deformation phenomenon, newborn interface for neat and trough plate surface colour and lustre even no pollution.
Inspection method: to observe the examination.
4.2.2 trough plate line protection shall meet the following requirements: line across the beam, column, wall and floor slab has the protection tube, trough plate across the building deformation joints disconnect, jacketed wires the hose and with appropriate allowance, the hose should be put inside trough plate. Circuit connected to the electrical appliances, plastic cone flat, wire no nudity, fixed firmly.
Inspection method: to observe the examination.
Holdings of wire connection shall meet the following requirements: connection is firm, bandage tightly, good insulation, not wound wire core, there is no joint in the trough plate, joint on appliances or terminal box.
Inspection method: to observe the examination.
4.3 allowable deviation projects:
Trough board wiring allowable deviation and inspection methods shall comply with the terms of table 3-36.
Trough board wiring table test method of allowable deviation and 3-36
Will project allowable deviation square method (mm)
1
2 apply horizontal or vertical
The degree of straight line straight set
The vertical straight degree 5
5 arrows, scale quantity check
Guy, 'quantity check
5 finished product protection
5.1 the plastic trough wiring, installation should pay attention to maintain a clean and tidy metope.
After completion of 5.2, welding, package, lifted the lid and tank cover all should cover sealed formation, conductor is not permitted in the leakage phenomenon.
5.3 plastic slot wiring is completed, can not spray, brush oil again, in order to prevent the conductor and electrical appliances being polluted.
6 should pay attention to quality problems
6.1 trough with dust and debris, to the slot should be taken before wiring the clean dust and sundries.
6.2 trough bottom plate is loose and view as have become warped edge, tube expanding or brick, wood screws not tight; Trough plate itself is a problem with the quality. Fixed soleplate, should first will wood brick or tube expanding fixed firmly, then fixed screw. The slot should choose qualified products.
6.3 trough plate interface is lax, gap is too big and there are wrong. Operation should be carefully will cover interface for good, avoid is wrong.
6.4 trough conductor is placed in clutter, wiring, wire straightening out, should be tie into a bundle.
6.5 circuits of different voltage grade are placed in the same slot. Operation shall, in accordance with requirements of the drawings and specification separate lines of different voltage grade. The same voltage grade of wire slot can be put in the same line.
6.6 slot wire section and root number than trough allow rules. Should be wiring as required.
6.7, welding, package is not in conformity with the requirements. Should be timely correction as required.
7 quality records
7.1 insulation wire and plastic wire slot products certification.
7.2 plastic wire slot wiring project installation must be checked, self-inspection, mutual inspection records.
7.3 design changes regarding the record, record drawings.
7.4 plastic slot wiring subentry engineering quality inspection records. , to borrow trough board wiring table)
7.5 the electrical insulation resistance.
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