Plastic sheath line wiring
1 scope
This technology standard is suitable for indoor electrical lighting plastic sheath line wiring project.
2 construction preparation
2.1 material requirements:
2.1.1 plastic sheath line: specification, type of the wire must comply with the design requirements, and have the factory certificate.
2.1.2 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.
2.1.3 LC about secure line pressing cap demanded to see the 3-8, article 2.1.5 related content.
2.1.4: casing pipe with copper, aluminum casing pipe and copper aluminum casing three transition, when choose, should adopt corresponding casing with conductor material specifications.
2.1.5 terminals (commonly known as wiring nose) : when choose, should choose according to conductor is the root of the number and the total cross section corresponding specifications of the terminal.
2.1.6 auxiliary materials: galvanized wood screw, solder and flux, aluminium, wood and brick, nail clip, rubber insulation tape, glue plastic insulation tape, black tape, junction box, porcelain connector, etc.
2.2 the main equipment:
2.2.1 pencil, tape measure, spirit level, line drop shovel, bucket, ash, chalk line bags.
2.2.2 electrician tools, commonly used hammer and chisel, hacksaw, saw blade, hand electric drill, impact drill, electric hammer).
2.2.3 megohmmeter, multimeter, tool bag, toolbox, high stool, etc.
2.3 operation conditions
2.3.1 cooperate with civil engineering structure construction stage, according to the design size, embedded good wood brick and pipe wall.
2.3.2 interior decoration engineering all over.
3 operation process
3.1 process:
Wooden brick, protecting tube embedded
Play sheathed wire wire line inspection
Positioning line insulation shake test
Install plastic bulge
3.2 bullet line positioning, the plastic sheath line wiring shall meet the following requirements:
Wooden table 3.2.1 line card distance shall not be greater than 50 mm, junction box and the corner. Line card maximum distance of 300 mm, uniform spacing, allowable deviation of 5 mm.
3.2.2 line, when they met with other pipe should be jacketed protection tube and round; The minimum distance between pipeline and other packages to see 3-1, as shown in table 3-2.
3.3 embedded wood brick and protect mistakes 3-9, section 3.2 relevant content.
3.4 play line positioning method 3, 9, 3. L section related content.
3.5 installation plastic bulge mistakes 3, 9, section 3.3 relevant content.
3.6 sheathed wire wiring:
According to the original embedded good wood brick and the location of the plastic expansion tubes, pop-up chalk line, determine the fixed distance. Use aluminum clamp nail on the wooden brick, use wood screws to junction box and switch box, bolt box is fixed on the plastic tube expanding. Good, according to the actual measuring circuit wire length and cut. From one end of the line segment installation, laying, and fixed. Then put the wire straightening sanity.
3.7 wire connection:
According to the size of the junction box set aside the length of the wire, cutting insulation cladding. According to the material color to distinguish between phase line and neutral line wires or protect the earth, the multimeter test.
3.7.1 screw connections button please see section 3, 8, 3.8 the part.
3.7.2 LC secure line pressing cap connection, please see section 3, 8, 3.8 relevant part.
3.7.3 copper wire bonding. Cut for the core, with emery cloth, polishing, alignment, insulation layer, with one of the core wire on the rest of the wire core closely around 5 ~ 7 laps. To bind to the rest of the line after the top of the core back to compaction. With a little flux, put the hot soldering tin in the bucket. After the welding wipe residual flux, to bind up please see section 3, 8, 3.8 the relevant content.
3.7.4 aluminum casing pressure: please see section 3, 8, 3.8 the relevant content.
3.7.5 line inspection and insulating shake please see section 3 a 8, 3.11 the relevant content.
4 quality standards
4.1 ensure projects:
4.4.1 sheathed wire varieties, specifications, quality meet the design requirements. Between the wire and wire to ground of insulation resistance must be greater than 0.5 M Ω. Test method: the measured or check the shake test record.
4.1.2 wires are strictly forbidden to have twisted, die bending, such as insulation damage and protect casing cracking phenomenon. Plastic sheath line it is forbidden to directly buried laying in plaster. Inspection method: to observe the examination.
4.2 the basic items:
2 sheathed wire laying flat, neat, fixed reliable, the beams, walls, floor and the place such as crossing the line protection tube. Across the building deformation joint fixed tightly on both ends of the wire, compensation allowance shall be maintained.
4.2.2 conductor Ming fu part close to the surface buildings, dogan parallel spacing is consistent, laying branch and elbow and tidy.
Holdings wire connection is firm, bandage tightly, good insulation, not wound wire core, joint is located in the junction box or electrical appliances; Plate hole without joint; Junction box position is correct, complete lifted the lid, level off, lead into the wiring box electric appliance with adequate margin. Inspection method: to observe the examination.
4.3 allowable deviation projects:
Sheath line wiring allow deviation, bending radius and testing methods are shown in table 3-28.
Sheath line wiring allowable deviation, bending radius and inspection method of table 3-28
Will project test method of allowable deviation or bending radius
1 fixed point spacing 5 mm feet quantity check
Straightness 5 mm cord, foot quantity check
Verticality messenger wire, 5 mm feet quantity check
3 minimum bending radius 3 b 'or higher quantity check
Note: b for the lateral thickness of sheath line or flat sheath line width.
5 finished product protection
5.1 wiring, should maintain a clean and tidy ceiling, metope, find wooden brick shall not damage the wall, playing chalk line should be light yellow or other light color.
5.2 wiring is completed, can not spray and brush oil, to prevent pollution of conductor and electrical appliances, don't touch when the moving loose wires.
6 should pay attention to quality problems
6.1 line spacing uneven, exceed the allowable deviation, and loose, such as uneven phenomenon. Should be adjusted and fixed again.
6.2 wire is flabby, bending, straightness, perpendicularity error. Should restore the wire straightening, graphite, according to the requirement to fasten on wire clamp with lines.
6.3 deformation joints of wires without leave compensation allowance. Should make compensation device and obligate compensation allowance.
6.4 wire on the floor, walls, beams and not do with other pipes crisscross protection tube, should be fill in a timely manner.
6.5 wire connection, welding, package is not in conformity with the requirements, shall be in accordance with the section 3 to 8, 3.11 relevant content to do it.
6.6 junction box opening is too big, and anastomosed with the sheath line not opening should repair or change new junction box, opening again as required.
7 quality records
7.1 sheathed wire products certification.
7.2 sheath line wiring project engineering, self-inspection, mutual inspection records.
7.3 design changes regarding the record, record drawings.
7.4 sheathed wire wiring subentry engineering quality inspection records.
1 scope
This technology standard is suitable for indoor electrical lighting plastic sheath line wiring project.
2 construction preparation
2.1 material requirements:
2.1.1 plastic sheath line: specification, type of the wire must comply with the design requirements, and have the factory certificate.
2.1.2 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.
2.1.3 LC about secure line pressing cap demanded to see the 3-8, article 2.1.5 related content.
2.1.4: casing pipe with copper, aluminum casing pipe and copper aluminum casing three transition, when choose, should adopt corresponding casing with conductor material specifications.
2.1.5 terminals (commonly known as wiring nose) : when choose, should choose according to conductor is the root of the number and the total cross section corresponding specifications of the terminal.
2.1.6 auxiliary materials: galvanized wood screw, solder and flux, aluminium, wood and brick, nail clip, rubber insulation tape, glue plastic insulation tape, black tape, junction box, porcelain connector, etc.
2.2 the main equipment:
2.2.1 pencil, tape measure, spirit level, line drop shovel, bucket, ash, chalk line bags.
2.2.2 electrician tools, commonly used hammer and chisel, hacksaw, saw blade, hand electric drill, impact drill, electric hammer).
2.2.3 megohmmeter, multimeter, tool bag, toolbox, high stool, etc.
2.3 operation conditions
2.3.1 cooperate with civil engineering structure construction stage, according to the design size, embedded good wood brick and pipe wall.
2.3.2 interior decoration engineering all over.
3 operation process
3.1 process:
Wooden brick, protecting tube embedded
Play sheathed wire wire line inspection
Positioning line insulation shake test
Install plastic bulge
3.2 bullet line positioning, the plastic sheath line wiring shall meet the following requirements:
Wooden table 3.2.1 line card distance shall not be greater than 50 mm, junction box and the corner. Line card maximum distance of 300 mm, uniform spacing, allowable deviation of 5 mm.
3.2.2 line, when they met with other pipe should be jacketed protection tube and round; The minimum distance between pipeline and other packages to see 3-1, as shown in table 3-2.
3.3 embedded wood brick and protect mistakes 3-9, section 3.2 relevant content.
3.4 play line positioning method 3, 9, 3. L section related content.
3.5 installation plastic bulge mistakes 3, 9, section 3.3 relevant content.
3.6 sheathed wire wiring:
According to the original embedded good wood brick and the location of the plastic expansion tubes, pop-up chalk line, determine the fixed distance. Use aluminum clamp nail on the wooden brick, use wood screws to junction box and switch box, bolt box is fixed on the plastic tube expanding. Good, according to the actual measuring circuit wire length and cut. From one end of the line segment installation, laying, and fixed. Then put the wire straightening sanity.
3.7 wire connection:
According to the size of the junction box set aside the length of the wire, cutting insulation cladding. According to the material color to distinguish between phase line and neutral line wires or protect the earth, the multimeter test.
3.7.1 screw connections button please see section 3, 8, 3.8 the part.
3.7.2 LC secure line pressing cap connection, please see section 3, 8, 3.8 relevant part.
3.7.3 copper wire bonding. Cut for the core, with emery cloth, polishing, alignment, insulation layer, with one of the core wire on the rest of the wire core closely around 5 ~ 7 laps. To bind to the rest of the line after the top of the core back to compaction. With a little flux, put the hot soldering tin in the bucket. After the welding wipe residual flux, to bind up please see section 3, 8, 3.8 the relevant content.
3.7.4 aluminum casing pressure: please see section 3, 8, 3.8 the relevant content.
3.7.5 line inspection and insulating shake please see section 3 a 8, 3.11 the relevant content.
4 quality standards
4.1 ensure projects:
4.4.1 sheathed wire varieties, specifications, quality meet the design requirements. Between the wire and wire to ground of insulation resistance must be greater than 0.5 M Ω. Test method: the measured or check the shake test record.
4.1.2 wires are strictly forbidden to have twisted, die bending, such as insulation damage and protect casing cracking phenomenon. Plastic sheath line it is forbidden to directly buried laying in plaster. Inspection method: to observe the examination.
4.2 the basic items:
2 sheathed wire laying flat, neat, fixed reliable, the beams, walls, floor and the place such as crossing the line protection tube. Across the building deformation joint fixed tightly on both ends of the wire, compensation allowance shall be maintained.
4.2.2 conductor Ming fu part close to the surface buildings, dogan parallel spacing is consistent, laying branch and elbow and tidy.
Holdings wire connection is firm, bandage tightly, good insulation, not wound wire core, joint is located in the junction box or electrical appliances; Plate hole without joint; Junction box position is correct, complete lifted the lid, level off, lead into the wiring box electric appliance with adequate margin. Inspection method: to observe the examination.
4.3 allowable deviation projects:
Sheath line wiring allow deviation, bending radius and testing methods are shown in table 3-28.
Sheath line wiring allowable deviation, bending radius and inspection method of table 3-28
Will project test method of allowable deviation or bending radius
1 fixed point spacing 5 mm feet quantity check
Straightness 5 mm cord, foot quantity check
Verticality messenger wire, 5 mm feet quantity check
3 minimum bending radius 3 b 'or higher quantity check
Note: b for the lateral thickness of sheath line or flat sheath line width.
5 finished product protection
5.1 wiring, should maintain a clean and tidy ceiling, metope, find wooden brick shall not damage the wall, playing chalk line should be light yellow or other light color.
5.2 wiring is completed, can not spray and brush oil, to prevent pollution of conductor and electrical appliances, don't touch when the moving loose wires.
6 should pay attention to quality problems
6.1 line spacing uneven, exceed the allowable deviation, and loose, such as uneven phenomenon. Should be adjusted and fixed again.
6.2 wire is flabby, bending, straightness, perpendicularity error. Should restore the wire straightening, graphite, according to the requirement to fasten on wire clamp with lines.
6.3 deformation joints of wires without leave compensation allowance. Should make compensation device and obligate compensation allowance.
6.4 wire on the floor, walls, beams and not do with other pipes crisscross protection tube, should be fill in a timely manner.
6.5 wire connection, welding, package is not in conformity with the requirements, shall be in accordance with the section 3 to 8, 3.11 relevant content to do it.
6.6 junction box opening is too big, and anastomosed with the sheath line not opening should repair or change new junction box, opening again as required.
7 quality records
7.1 sheathed wire products certification.
7.2 sheath line wiring project engineering, self-inspection, mutual inspection records.
7.3 design changes regarding the record, record drawings.
7.4 sheathed wire wiring subentry engineering quality inspection records.
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