The installation of the panel and door table board
1 scope
The technology standard is applicable to general civil construction electrical switchboard and table plate installation project.
2 construction preparation
2.1 material requirements:
2.1.1 plastic table board: the specifications shall be 300 mm x 250 mm x 30 mm, and has a certain strength, broken do not vibrate when closing, general should not be less than 8 mm thickness (with the exception of a rib forming of qualified products), and shall not paint. And the product certificate.
2.1.2 wooden table board: there should be no split, deformation phenomenon, uniform paint, insulation is complete and strong mouth, its thickness should not less than 15 mm.
2.1.3 ceramic brake chamber or porcelain insurance: porcelain shall there is any breakage, cracks, copper is fixed firmly, good action edge contact. Live parts shall not be bare, should use insulation filling heads, and the product certificate.
2.1.4 fuse, fuse specification shall conform to the branch load capacity requirements, usually selected shall not be greater than 1.5 times of the branch load.
2.1.5 leakage switch: specification, type and basic parameters should meet design requirements, and product certification.
2.1.6 insulated wires: specification, type of the wire must comply with the design requirements, and product certification.
2.1.7 protecting mouth: according to the size of the pipe diameter should choose corresponding nursing.
2.1.8 other material: galvanized machine screws, galvanized flat washers, galvanized spring washer, galvanized wood screw, preservatives, insulation mouth, cement, sand, wood and brick, nails.
2.2 the main equipment:
2.2.1 pencil, tape measure, spirit level, meters, line drop shovel, bucket, ash bucket, ash, iron scissors.
2.2.2 hammer and chisel, bench drill, drill bits, stripping pliers, electric drill, tool bag, high stool, etc.
2.3 operation conditions:
2.3.1 plaster had been buried at predetermined position before the wooden brick.
2.3.2 roofs and walls shotcrete is complete.
2.3.3 wood table board has paint. Fire prevention and do.
3 operation process
3.1 process:
The brake assembly required - with brake assembly - fixed point determination - > table plate fixation
3.2 brake assembly requirements:
3.2.1 in a dry place without dust, can install a wooden board, wire leads to layout shall be jacketed insulation mouth.
3.2.2 table plate should be fixed firmly, clingy metope, fixed table plate screws should be evenly in the four corners is symmetrical, nut should with board face.
3.2.3 table board should avoid warm tube, light and a cupboard door window.
3.2.4 wiring should correctly, footer line cross, the holes are only allowed to wear a wire, footer line length shall be 100 mm or so.
Using plastic panel, electrical components to be loaded on board, must use galvanized solid wood screw twist.
3.3 brake assembly:
3.3.1 physical arrangement:
Will be physical with brake on the table board first, set aside the position of the meter installation, well spacing, draw a horizontal line, divide the line hole position, and then draw a fixed brake and the aperture of table board.
3.3.2 rainfall distribution on 10-12 drilling:
Removed brake for drilling, drilling, with sharp chisel point accurately first blunt concave nest, no deviation, reoccupy drill for drilling. To facilitate the nut flush with the surface, then use a bit the same as the nut diameter drill bit diameter, on the second reaming, depth of the screw nut sat on a panel surface level shall prevail.
3.3.3 fixed brake with:
Check the brake is complete, and then fixed up straight. Will board layout through the table board after the outlet hole, and set of insulation on the mouth, and then stripped wire insulation layer, and terminal with brake pressure.
Determination of fixed point 3.4:
The need to install the table board, use a ruler measure good level, with level draw the bottom level to find wooden brick. As with plastic expansion tubes, should play line positioning, drilling, find the exact location of the fixed point buries the plastic tube and the wall level.
3.5 the table plate is fixed:
Use wooden brick fixed table board:
First and the route the power cord to a properly through the table plate outlet hole, and set good insulation, wire reserve appropriate allowance. First use length appropriate wood screws, thread again fall flat proofreading, leveling are fixed again after find other each point. After they fixed into the end of the line cut good, pressed firmly, and bare wiring will be dispatched straight. Plastic tube expanding on the brick wall. Use wood screw fastening table board, drilling, hole drill should not be in the middle of the brick joints, such as in the middle of the brick joints should be processing, hole can be enlarged, and the plastic tube expanding or wood brick stabilized with cement mortar.
4 quality standards
4.1 ensure projects:
4.4.1 switchboard and switch type, specification, quality must comply with the design requirements, finalize the design product must have a product certificate.
4.1.2 porcelain surface are strictly forbidden to have cracks, defects and damage of enamel loss phenomenon, meets the requirements to high voltage level.
4.1.3 table board contact with conductive parts must be closely.
Inspection method: to observe the examination.
4.2 the basic items:
Table plate fixed firmly, conductor and electric or compact connection terminal row, neatly, the circuit is clear, indicate the name of electric circuit.
Inspection methods: observation and trial operation examination.
4.3 allowable deviation projects:
The installation elevation of this table board should comply with the design requirements, generally for the table plate bottom mouth shall not be less than 1.8 m from ground, allowable deviation 10 mm, all level should be consistent.
4.3.2 table plate verticality deviation should not be allowed greater than 3 m.
Inspection method: to observe the feet and check.
5 finished product protection
5.1 maintain a clean and tidy metope should be paid attention to when installing table board.
Table 5.2 installed, can not hit a touch and dirty utensils or damage to the walls.
6 should pay attention to quality problems
6.1 elevation table plate is not consistent, exceed the allowable deviation, shall check the position of embedded wood brick and pipe expanding is correct, or because of the ground height inequality. Then amended.
6.2 wood block buried note location, uneven fixed screw is symmetrical, in the four corners of the table board, nut tilt. Screw twist into depth should even symmetry; Screw fixation screws should be tweaked a right, nuts should be vertical stress, should not be skewed, and should be tighten in place.
6.3 the table plate is not a right, verticality exceed the allowable deviation. With suspension leveling table plate verticality, make its within the allowable deviation.
6.4 table plate distance warm who pipe, light or a cupboard door, window and too close to or touching, should according to actual condition adjust the distance, the general table plate should avoid warm who pipe 300 mm, otherwise measures should be taken.
6.5 brake loose loose, copper pieces, all fixed screw should be retightened.
6.6 wire, wire core damage and pressure wire core is too long, should be required to return wire core, wire stripping should not damage the wire core, when the pressure is strong.
6.7 rebounds after wire clutter, fail to provide all the required length should be wire with adequate allowance, length of agreement, binding of bundles.
6.8 leakage switch can not ensure the safety protection, should be timely find out the reason. As a result of quality problem, application of qualified products to replace.
7 quality records
7.1 all kinds of panel, door table board, ceramic brake chamber, porcelain insurance, leakage switch product certificate.
7.2 panel and door table board installation engineering, self-inspection, mutual inspection records.
7.3 design changes regarding the record, record drawings.
7.4 electric lighting apparatus and its distribution box (dish) installation engineering quality inspection record separately.
7.5 electrical insulation resistance test records.
1 scope
The technology standard is applicable to general civil construction electrical switchboard and table plate installation project.
2 construction preparation
2.1 material requirements:
2.1.1 plastic table board: the specifications shall be 300 mm x 250 mm x 30 mm, and has a certain strength, broken do not vibrate when closing, general should not be less than 8 mm thickness (with the exception of a rib forming of qualified products), and shall not paint. And the product certificate.
2.1.2 wooden table board: there should be no split, deformation phenomenon, uniform paint, insulation is complete and strong mouth, its thickness should not less than 15 mm.
2.1.3 ceramic brake chamber or porcelain insurance: porcelain shall there is any breakage, cracks, copper is fixed firmly, good action edge contact. Live parts shall not be bare, should use insulation filling heads, and the product certificate.
2.1.4 fuse, fuse specification shall conform to the branch load capacity requirements, usually selected shall not be greater than 1.5 times of the branch load.
2.1.5 leakage switch: specification, type and basic parameters should meet design requirements, and product certification.
2.1.6 insulated wires: specification, type of the wire must comply with the design requirements, and product certification.
2.1.7 protecting mouth: according to the size of the pipe diameter should choose corresponding nursing.
2.1.8 other material: galvanized machine screws, galvanized flat washers, galvanized spring washer, galvanized wood screw, preservatives, insulation mouth, cement, sand, wood and brick, nails.
2.2 the main equipment:
2.2.1 pencil, tape measure, spirit level, meters, line drop shovel, bucket, ash bucket, ash, iron scissors.
2.2.2 hammer and chisel, bench drill, drill bits, stripping pliers, electric drill, tool bag, high stool, etc.
2.3 operation conditions:
2.3.1 plaster had been buried at predetermined position before the wooden brick.
2.3.2 roofs and walls shotcrete is complete.
2.3.3 wood table board has paint. Fire prevention and do.
3 operation process
3.1 process:
The brake assembly required - with brake assembly - fixed point determination - > table plate fixation
3.2 brake assembly requirements:
3.2.1 in a dry place without dust, can install a wooden board, wire leads to layout shall be jacketed insulation mouth.
3.2.2 table plate should be fixed firmly, clingy metope, fixed table plate screws should be evenly in the four corners is symmetrical, nut should with board face.
3.2.3 table board should avoid warm tube, light and a cupboard door window.
3.2.4 wiring should correctly, footer line cross, the holes are only allowed to wear a wire, footer line length shall be 100 mm or so.
Using plastic panel, electrical components to be loaded on board, must use galvanized solid wood screw twist.
3.3 brake assembly:
3.3.1 physical arrangement:
Will be physical with brake on the table board first, set aside the position of the meter installation, well spacing, draw a horizontal line, divide the line hole position, and then draw a fixed brake and the aperture of table board.
3.3.2 rainfall distribution on 10-12 drilling:
Removed brake for drilling, drilling, with sharp chisel point accurately first blunt concave nest, no deviation, reoccupy drill for drilling. To facilitate the nut flush with the surface, then use a bit the same as the nut diameter drill bit diameter, on the second reaming, depth of the screw nut sat on a panel surface level shall prevail.
3.3.3 fixed brake with:
Check the brake is complete, and then fixed up straight. Will board layout through the table board after the outlet hole, and set of insulation on the mouth, and then stripped wire insulation layer, and terminal with brake pressure.
Determination of fixed point 3.4:
The need to install the table board, use a ruler measure good level, with level draw the bottom level to find wooden brick. As with plastic expansion tubes, should play line positioning, drilling, find the exact location of the fixed point buries the plastic tube and the wall level.
3.5 the table plate is fixed:
Use wooden brick fixed table board:
First and the route the power cord to a properly through the table plate outlet hole, and set good insulation, wire reserve appropriate allowance. First use length appropriate wood screws, thread again fall flat proofreading, leveling are fixed again after find other each point. After they fixed into the end of the line cut good, pressed firmly, and bare wiring will be dispatched straight. Plastic tube expanding on the brick wall. Use wood screw fastening table board, drilling, hole drill should not be in the middle of the brick joints, such as in the middle of the brick joints should be processing, hole can be enlarged, and the plastic tube expanding or wood brick stabilized with cement mortar.
4 quality standards
4.1 ensure projects:
4.4.1 switchboard and switch type, specification, quality must comply with the design requirements, finalize the design product must have a product certificate.
4.1.2 porcelain surface are strictly forbidden to have cracks, defects and damage of enamel loss phenomenon, meets the requirements to high voltage level.
4.1.3 table board contact with conductive parts must be closely.
Inspection method: to observe the examination.
4.2 the basic items:
Table plate fixed firmly, conductor and electric or compact connection terminal row, neatly, the circuit is clear, indicate the name of electric circuit.
Inspection methods: observation and trial operation examination.
4.3 allowable deviation projects:
The installation elevation of this table board should comply with the design requirements, generally for the table plate bottom mouth shall not be less than 1.8 m from ground, allowable deviation 10 mm, all level should be consistent.
4.3.2 table plate verticality deviation should not be allowed greater than 3 m.
Inspection method: to observe the feet and check.
5 finished product protection
5.1 maintain a clean and tidy metope should be paid attention to when installing table board.
Table 5.2 installed, can not hit a touch and dirty utensils or damage to the walls.
6 should pay attention to quality problems
6.1 elevation table plate is not consistent, exceed the allowable deviation, shall check the position of embedded wood brick and pipe expanding is correct, or because of the ground height inequality. Then amended.
6.2 wood block buried note location, uneven fixed screw is symmetrical, in the four corners of the table board, nut tilt. Screw twist into depth should even symmetry; Screw fixation screws should be tweaked a right, nuts should be vertical stress, should not be skewed, and should be tighten in place.
6.3 the table plate is not a right, verticality exceed the allowable deviation. With suspension leveling table plate verticality, make its within the allowable deviation.
6.4 table plate distance warm who pipe, light or a cupboard door, window and too close to or touching, should according to actual condition adjust the distance, the general table plate should avoid warm who pipe 300 mm, otherwise measures should be taken.
6.5 brake loose loose, copper pieces, all fixed screw should be retightened.
6.6 wire, wire core damage and pressure wire core is too long, should be required to return wire core, wire stripping should not damage the wire core, when the pressure is strong.
6.7 rebounds after wire clutter, fail to provide all the required length should be wire with adequate allowance, length of agreement, binding of bundles.
6.8 leakage switch can not ensure the safety protection, should be timely find out the reason. As a result of quality problem, application of qualified products to replace.
7 quality records
7.1 all kinds of panel, door table board, ceramic brake chamber, porcelain insurance, leakage switch product certificate.
7.2 panel and door table board installation engineering, self-inspection, mutual inspection records.
7.3 design changes regarding the record, record drawings.
7.4 electric lighting apparatus and its distribution box (dish) installation engineering quality inspection record separately.
7.5 electrical insulation resistance test records.
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