1 scope
The technology standard is applicable to dry, no mechanical damage of indoor and outdoor pick eaves electrical wiring project clearly.
2 construction preparation
2.1 material requirements:
2.1.1 porcelain clip (plastic clip) : the backplane should level off in good condition, can not have fracture, skewed wait for a phenomenon.
2.1.2 insulated wires: specification, type of the wire must comply with the design requirements, and product certification.
2.1.3 screw connection button: should choose according to wire section and the root of the wire number corresponding models of spiral wire reinforced insulation steel shell button.
2.1.4 LC type line pressing cap material requirements clear see 3, 8, 2.1.5 related content.
2.1.5 casing: a copper tube, aluminum and copper aluminum transition casing pipe three, when choose, should adopt corresponding casing with conductor material specifications.
2.1.6 plastic bulge: its specification and be suitable to the electrical appliance load fastening, and choose the corresponding specifications of the wood screws are used.
2.1.7 galvanized material, machine screws, bolts, wood screws, nuts, washers, spring washers, etc.
2.1.8 auxiliary materials: bit, black tape, rubber tape, glue plastic insulation belt, emery cloth, solder, flux, wood, brick, etc.
2.2 the main equipment:
2.2.1, tape measure, line drop, chalk line pencil bags, bucket, steel wire brush.
2.2.2 hammer and chisel, hand electric drill, electric hammer, electric furnace, tin tin pot, spoon.
2.2.3 tool bag, toolbox, multimeter, megohmmeter, high stool, etc.
2.3 operation conditions:
2.3.1 cooperate with civil construction structure, according to the design position size requirements, the wooden brick, wall pipe embedded correctly.
2.3.2 decoration homework is complete.
3 operation process
3.1 process:
Embedded wooden brick and protecting tube
Clamp wire for wire line inspection
Positioners fixed installation connected insulation shake
Embedded plastic tube expanding
3.2 play line positioning:
3.2.1 flare line location shall meet the following requirements:
3.2.1.1 line with other piping should avoid to meet, close to the installation, the minimum distance should be consistent with 3-1, given in table 3-2.
3.2.1.2 conductor in turn, branch and into the electric appliance, shall furnish support is fixed. Using porcelain plywood or plastic splint wiring, support point and turning point, branch points and electrical appliances on the edge of the distance of 40 ~ 60 mm.
3.2.1.3 cable along the interior wall, ceiling installation, the distance between its support for a fixed point should comply with the regulations of table 3-19.
3.2.1.4 indoor installation of wires and building surface minimum distance in porcelain (plastic) splint wiring, should not be less than 5 mm;
3.2.1.5 porcelain (plastic) splint wiring, wire to the ground, the minimum distance are shown in table 3-20.
Wire to the ground, the minimum allowed distance table 3-20
Laying the least allow distance (m)
Inside the room
2.5 outside room
2.7
Inside the room
1.8 outside room
2.7
3.2.2 flare line positioning:
According to the design requirements, from the line of power equipment and the location of the electrical appliances, looking for a good horizontal and vertical line, use chalk line bag along the surface of the building, from the beginning to pop up the center of the line terminal evenly separated span, mark fixed point position.
Embedded wood brick and protecting tube 3.3:
According to design requirements, the structure construction, brick and wood protection tube embedded in accurate position. Embedded parts should be in vertical and horizontal alignment, trapezoidal wooden brick side should be embedded inside the wall is larger, the smaller side should be leveling with metope. Steel pipe or plastic pipe can be used for protecting tube, the ends of the tube should be outstanding metope 5 ~ 10 mm. Carefully check the number and position of wood brick and protecting tube is correct, can not have missing or wrong position.
3.4 embedded plastic expansion tubes:
Also according to the elastic thread positioning methods to determine the position of the fixed point, and then, based on the selection of plastic bulge tube outer diameter and length of selecting drill for drilling, deep hole should be greater than the length of the tube expanding, buried tube expanding after should be flush with metope.
Splint fixed 3.5:
Porcelain double three wire clip clip, plastic single wire clip, plastic and plastic second-line fat belly yarn clip using a fixed; Porcelain single (double) three line fat belly yarn, plastic clip to adopt the fixed at two o 'clock. Wood screw twist into the wood brick and the depth of the plastic expansion tubes shall not be less than 12 mm;
3.6 wire laying:
3.6.1 track alignment:
After wire open, double parallel turf roots in the steel frame, and then press line always end order through each tube wall. At should add protection tube needs to wear at the same time protecting tube.
3.6.2 wire laying:
Starting from one end of each branch, along the route and suitable room. In end use wood screws to fix porcelain (plastic) clamp on the brick wood or plastic expansion tubes, wire is placed within the plate groove again, tighten the porcelain (plastic) screws on the clamp. Then lead straight stroke, in the same way at the other end of the wire and porcelain (plastic) clamp fixed in mind, finally put the middle of the wires and porcelain (plastic) clamp fixed firmly.
3.6.3 detail:
3.6.3.1 wire should be horizontal laying flat vertical, with twists and turns in the same plane, Angle should be 90 ° Angle, line knot is shown in figure 3-44, tube expanding fixed porcelain plate as shown in figure 3-45.
3.6.3.2 when two lines cross each other, should be in position to close to the structure of the wire insulation casing, pipe with porcelain (plastic) between the fixed at both ends. Lines cross is shown in figure 3-46. Wire in the branch, the branch place fixed with porcelain (plastic), line branch knot is shown in figure 3-47.
3.6.3.3 wires in the internal Angle is shown in figure 3-48, line and pipeline cross is shown in figure 3-49.
3.6.3.4 wires should add hold Angle on the leaves, as shown in figure 3-50. Open wire wall tube is shown in figure 3-51.
3.6.3.5 conductor in electric appliance, shall furnish porcelain (plastic) clamp fixed as shown in figure 3-52.
3.6.3.6 sag of the wire is too big, lest cause short circuit, defective insulation where easily bruised wires should add protection.
3.7 wire connection:
3.7.1 screw connections button: in wiring knot, shall set aside terminal stud. See chapter 8 section 8.4.8 about connection method. Straight after connection wire, upside down space.
3.7.2 LC secure line pressing cap connections: please see section 3, 8, 3.8 the part.
3.7.3 copper wire bonding: please see section 3, 8, 3.8 the part.
3.7.4 aluminum casing pressure: please see section 3, 8, 3.8 the part.
3.8 line inspection and insulation test, please see section 3, 8, 3.11 the part.
4 quality standards
4.1 ensure projects:
4.4.1 porcelain and specifications of the wire, the quality must conform to the design requirements and relevant regulations; Lead and lead to ground insulation resistance must be greater than 0.5 M between Ω.
Methods: the measured or check record wave measuring insulation resistance.
4.1.2 wire twisting is forbidden, die bending, and the defects such as insulation damage.
Inspection method: to observe the examination.
4.2 the basic items:
2 porcelain installation is firm no damage, ceramic or plastic clip to the base plate and cover plate must be neat, shall not be skewed, wrong table neat, wires and splint, surface cleaning, fixed spacing uniform accurately.
Inspection methods: observation and inspection.
4.2.2 wire laying flat and tidy, porcelain (plastic), branch corner clamp fixed and reliable; Enter the electrical equipment in good insulation.
Inspection method: to observe the examination.
Holdings through the beams, walls, floor and the place such as cross line protection tube; Across the building deformation joint with compensation allowance on both ends of the wire, fixed and reliable.
Inspection method: to observe the examination.
4.2.4 conductor joint bandage tightly, the insulation is good, does not hurt wire core, wire connector is not subject to tension.
Inspection method: to observe the examination.
4.3 allowable deviation projects:
Porcelain (plastic) clamp wiring line centerline allowable deviation: horizontal line 5 mm; The vertical line 5 mm.
Test method: horizontal lines with arrows, scale quantity check.
Vertical line with messenger wire, feet quantity check.
5 finished product protection
5.1 wiring, should not damage the surface of the building, should keep the parts clean.
5.2 installation of electrical appliances, shall not touch the loose laying up the wires.
5.3 when fastening screws, do not apply force too hard, so as to avoid porcelain rupture.
After 5.4 line installation, must not again brush spray oil, in order to prevent the pollution of lead.
6 should pay attention to quality problems
6.1 porcelain, not level, should be first brick wood or plastic tube expanding embedded firmly, and then use wood screws to fix porcelain on the brick wood or plastic expansion tubes, and adjust the level.
6.2 conductor is too loose, exceed allowable deviation, should be adjusted in time, to the specified requirements.
6.3 the branch the wires, the corner is not equipped with fixed porcelain, should be timely to fill.
6.4 deformation seam on both sides of the conductor is not equipped with fixed porcelain, should according to the requirements in a timely manner their make-up and wires should have compensation allowance.
6.5 high from the ground wire installation position does not conform to the requirements. Should be adjusted according to the requirements.
6.6 t wiring, wire is not straight. Wiring, porcelain, in block should be wires straighten out first. Do not conform to the requirements should be timely adjusted correctly.
7 quality records
7.1 insulated wires should have the factory quality certificate.
7.2 ceramic or plastic clip to layout preview, self-inspection, mutual inspection records.
7.3 design changes regarding the record, record drawings.
7.4 (pearl) and the porcelain porcelain, porcelain column wiring subentry engineering quality inspection records.
7.5 electrical insulation resistance test records.
The technology standard is applicable to dry, no mechanical damage of indoor and outdoor pick eaves electrical wiring project clearly.
2 construction preparation
2.1 material requirements:
2.1.1 porcelain clip (plastic clip) : the backplane should level off in good condition, can not have fracture, skewed wait for a phenomenon.
2.1.2 insulated wires: specification, type of the wire must comply with the design requirements, and product certification.
2.1.3 screw connection button: should choose according to wire section and the root of the wire number corresponding models of spiral wire reinforced insulation steel shell button.
2.1.4 LC type line pressing cap material requirements clear see 3, 8, 2.1.5 related content.
2.1.5 casing: a copper tube, aluminum and copper aluminum transition casing pipe three, when choose, should adopt corresponding casing with conductor material specifications.
2.1.6 plastic bulge: its specification and be suitable to the electrical appliance load fastening, and choose the corresponding specifications of the wood screws are used.
2.1.7 galvanized material, machine screws, bolts, wood screws, nuts, washers, spring washers, etc.
2.1.8 auxiliary materials: bit, black tape, rubber tape, glue plastic insulation belt, emery cloth, solder, flux, wood, brick, etc.
2.2 the main equipment:
2.2.1, tape measure, line drop, chalk line pencil bags, bucket, steel wire brush.
2.2.2 hammer and chisel, hand electric drill, electric hammer, electric furnace, tin tin pot, spoon.
2.2.3 tool bag, toolbox, multimeter, megohmmeter, high stool, etc.
2.3 operation conditions:
2.3.1 cooperate with civil construction structure, according to the design position size requirements, the wooden brick, wall pipe embedded correctly.
2.3.2 decoration homework is complete.
3 operation process
3.1 process:
Embedded wooden brick and protecting tube
Clamp wire for wire line inspection
Positioners fixed installation connected insulation shake
Embedded plastic tube expanding
3.2 play line positioning:
3.2.1 flare line location shall meet the following requirements:
3.2.1.1 line with other piping should avoid to meet, close to the installation, the minimum distance should be consistent with 3-1, given in table 3-2.
3.2.1.2 conductor in turn, branch and into the electric appliance, shall furnish support is fixed. Using porcelain plywood or plastic splint wiring, support point and turning point, branch points and electrical appliances on the edge of the distance of 40 ~ 60 mm.
3.2.1.3 cable along the interior wall, ceiling installation, the distance between its support for a fixed point should comply with the regulations of table 3-19.
3.2.1.4 indoor installation of wires and building surface minimum distance in porcelain (plastic) splint wiring, should not be less than 5 mm;
3.2.1.5 porcelain (plastic) splint wiring, wire to the ground, the minimum distance are shown in table 3-20.
Wire to the ground, the minimum allowed distance table 3-20
Laying the least allow distance (m)
Inside the room
2.5 outside room
2.7
Inside the room
1.8 outside room
2.7
3.2.2 flare line positioning:
According to the design requirements, from the line of power equipment and the location of the electrical appliances, looking for a good horizontal and vertical line, use chalk line bag along the surface of the building, from the beginning to pop up the center of the line terminal evenly separated span, mark fixed point position.
Embedded wood brick and protecting tube 3.3:
According to design requirements, the structure construction, brick and wood protection tube embedded in accurate position. Embedded parts should be in vertical and horizontal alignment, trapezoidal wooden brick side should be embedded inside the wall is larger, the smaller side should be leveling with metope. Steel pipe or plastic pipe can be used for protecting tube, the ends of the tube should be outstanding metope 5 ~ 10 mm. Carefully check the number and position of wood brick and protecting tube is correct, can not have missing or wrong position.
3.4 embedded plastic expansion tubes:
Also according to the elastic thread positioning methods to determine the position of the fixed point, and then, based on the selection of plastic bulge tube outer diameter and length of selecting drill for drilling, deep hole should be greater than the length of the tube expanding, buried tube expanding after should be flush with metope.
Splint fixed 3.5:
Porcelain double three wire clip clip, plastic single wire clip, plastic and plastic second-line fat belly yarn clip using a fixed; Porcelain single (double) three line fat belly yarn, plastic clip to adopt the fixed at two o 'clock. Wood screw twist into the wood brick and the depth of the plastic expansion tubes shall not be less than 12 mm;
3.6 wire laying:
3.6.1 track alignment:
After wire open, double parallel turf roots in the steel frame, and then press line always end order through each tube wall. At should add protection tube needs to wear at the same time protecting tube.
3.6.2 wire laying:
Starting from one end of each branch, along the route and suitable room. In end use wood screws to fix porcelain (plastic) clamp on the brick wood or plastic expansion tubes, wire is placed within the plate groove again, tighten the porcelain (plastic) screws on the clamp. Then lead straight stroke, in the same way at the other end of the wire and porcelain (plastic) clamp fixed in mind, finally put the middle of the wires and porcelain (plastic) clamp fixed firmly.
3.6.3 detail:
3.6.3.1 wire should be horizontal laying flat vertical, with twists and turns in the same plane, Angle should be 90 ° Angle, line knot is shown in figure 3-44, tube expanding fixed porcelain plate as shown in figure 3-45.
3.6.3.2 when two lines cross each other, should be in position to close to the structure of the wire insulation casing, pipe with porcelain (plastic) between the fixed at both ends. Lines cross is shown in figure 3-46. Wire in the branch, the branch place fixed with porcelain (plastic), line branch knot is shown in figure 3-47.
3.6.3.3 wires in the internal Angle is shown in figure 3-48, line and pipeline cross is shown in figure 3-49.
3.6.3.4 wires should add hold Angle on the leaves, as shown in figure 3-50. Open wire wall tube is shown in figure 3-51.
3.6.3.5 conductor in electric appliance, shall furnish porcelain (plastic) clamp fixed as shown in figure 3-52.
3.6.3.6 sag of the wire is too big, lest cause short circuit, defective insulation where easily bruised wires should add protection.
3.7 wire connection:
3.7.1 screw connections button: in wiring knot, shall set aside terminal stud. See chapter 8 section 8.4.8 about connection method. Straight after connection wire, upside down space.
3.7.2 LC secure line pressing cap connections: please see section 3, 8, 3.8 the part.
3.7.3 copper wire bonding: please see section 3, 8, 3.8 the part.
3.7.4 aluminum casing pressure: please see section 3, 8, 3.8 the part.
3.8 line inspection and insulation test, please see section 3, 8, 3.11 the part.
4 quality standards
4.1 ensure projects:
4.4.1 porcelain and specifications of the wire, the quality must conform to the design requirements and relevant regulations; Lead and lead to ground insulation resistance must be greater than 0.5 M between Ω.
Methods: the measured or check record wave measuring insulation resistance.
4.1.2 wire twisting is forbidden, die bending, and the defects such as insulation damage.
Inspection method: to observe the examination.
4.2 the basic items:
2 porcelain installation is firm no damage, ceramic or plastic clip to the base plate and cover plate must be neat, shall not be skewed, wrong table neat, wires and splint, surface cleaning, fixed spacing uniform accurately.
Inspection methods: observation and inspection.
4.2.2 wire laying flat and tidy, porcelain (plastic), branch corner clamp fixed and reliable; Enter the electrical equipment in good insulation.
Inspection method: to observe the examination.
Holdings through the beams, walls, floor and the place such as cross line protection tube; Across the building deformation joint with compensation allowance on both ends of the wire, fixed and reliable.
Inspection method: to observe the examination.
4.2.4 conductor joint bandage tightly, the insulation is good, does not hurt wire core, wire connector is not subject to tension.
Inspection method: to observe the examination.
4.3 allowable deviation projects:
Porcelain (plastic) clamp wiring line centerline allowable deviation: horizontal line 5 mm; The vertical line 5 mm.
Test method: horizontal lines with arrows, scale quantity check.
Vertical line with messenger wire, feet quantity check.
5 finished product protection
5.1 wiring, should not damage the surface of the building, should keep the parts clean.
5.2 installation of electrical appliances, shall not touch the loose laying up the wires.
5.3 when fastening screws, do not apply force too hard, so as to avoid porcelain rupture.
After 5.4 line installation, must not again brush spray oil, in order to prevent the pollution of lead.
6 should pay attention to quality problems
6.1 porcelain, not level, should be first brick wood or plastic tube expanding embedded firmly, and then use wood screws to fix porcelain on the brick wood or plastic expansion tubes, and adjust the level.
6.2 conductor is too loose, exceed allowable deviation, should be adjusted in time, to the specified requirements.
6.3 the branch the wires, the corner is not equipped with fixed porcelain, should be timely to fill.
6.4 deformation seam on both sides of the conductor is not equipped with fixed porcelain, should according to the requirements in a timely manner their make-up and wires should have compensation allowance.
6.5 high from the ground wire installation position does not conform to the requirements. Should be adjusted according to the requirements.
6.6 t wiring, wire is not straight. Wiring, porcelain, in block should be wires straighten out first. Do not conform to the requirements should be timely adjusted correctly.
7 quality records
7.1 insulated wires should have the factory quality certificate.
7.2 ceramic or plastic clip to layout preview, self-inspection, mutual inspection records.
7.3 design changes regarding the record, record drawings.
7.4 (pearl) and the porcelain porcelain, porcelain column wiring subentry engineering quality inspection records.
7.5 electrical insulation resistance test records.
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