CN103855646A - Construction technology based on overhead line erection - Google Patents
Construction technology based on overhead line erection Download PDFInfo
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- CN103855646A CN103855646A CN201410099891.0A CN201410099891A CN103855646A CN 103855646 A CN103855646 A CN 103855646A CN 201410099891 A CN201410099891 A CN 201410099891A CN 103855646 A CN103855646 A CN 103855646A
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Abstract
The invention discloses a construction technology based on overhead line erection. The construction technology includes the following steps that pole lines are arranged, suspension wires are installed, stay wires are installed, steel handle ground anchors are arranged, optical cables are installed, when optical fibers in the optical cables need to be spliced, stripping is performed according to the reserved length of splices, after stripping, the optical cables need to be firmly fixed to splice box supports, when the optical cables are laid, pulleys are hung on angle poles with a large angle depth, backstop rods or suspension rods, reserved lines of the optical cables are arranged on the angle poles and the stay wires on the four-side stay wires, plastic bellow protection sleeves are used for the reserved lines, the middles of reserved bows are fixed to electric poles through soft binding wires, the distance between optical cable hooks is 47 cm-53 cm, and the hooks are in accordance with the size of optical cable buckles. According to the technology, the line is erected overhead, the construction period is short, power transmission of the line is stable, and the problem that many hidden danger exists when the line is laid under the ground is solved.
Description
Technical field
The present invention relates to a kind of technique, especially relate to a kind ofly based on to the construction technology of setting up high-altitude circuit, belong to power construction field.
Background technology
Electric power is the energy using electric energy as power.Invented in the 70's of 19th century, the invention of electric power and application have started industrialization climax for the second time.Since becoming 18th century of human history, one of three scientific and technological revolutions that the world occurs, from then on science and technology has changed people's life.Even the Internet era of current, we still have the demand of sustainable growth to electric power, because we have invented the product of more use electric power such as computer, household electrical appliances.Constantly the occurring of undeniable new technology makes electric power become people's necessity.The large-scale electrical power system that 20th century occurred is one of most important achievement in the human engineering history of science, the electrical production and the consume system that are made up of links such as generating, transmission of electricity, power transformation, distribution and electricity consumptions.Be the epoch of the Internet now, we still have the demand of sustainable growth to electric power, because we have invented the product of more use electric power such as computer, household electrical appliances.The conveying of electric power needs laying-out, generally to adopt the end, ground to carry and high-altitude conveying, carry at the end, ground needs the end over the ground to carry out construction, the impact of the ground various soil properties of bottom application work and other construction environments, construction is caused to very large impact, and easily gnawed and bite by the animal at the bottom of ground after track laying, or air or water etc. in soil property also easily impacts cable, the construction in periphery soil also can damage the cable of burying underground, affects power transmission efficiency.
Summary of the invention
The object of the invention is to overcome above-mentioned existing ground end laying-out and exist the problem of many hidden danger, design a kind of based on to the construction technology of setting up high-altitude circuit, this technique is to high-altitude by the construction of line, short construction period, and circuit transmission of electricity is stable, solve the end, existing ground laying-out and existed the problem of many hidden danger.
Object of the present invention is achieved through the following technical solutions: based on to the construction technology of setting up high-altitude circuit, comprise the following steps:
(a) setting of pole line: lay electric pole, the center line of electric pole is straight line, distance between adjacent electric pole is 45 to 55m, the depth scale scope in pole height and bar hole is 6:1 to 7:1, electric pole near roadside, rock does fender pier, fender pier is of a size of upper base diameter 80cm, the diameter 120cm that goes to the bottom, height 80cm; Straight line pole line will be avoided three line pole lines (electric power pole line, communication pole line, broadcasting and TV pole line) and three and tie that pole line is parallel must not be less than a position of falling bar.The gutter, both sides of highway is left in pole line; With national highway distance be 20 meters, with provincial highway distance be 15 meters, with county road distance be 10 meters, with township road distance be 5 meters.Pole line is passed through power circuit, long-distance optical cable, must be passed from below.Pole line is through long-distance buried optical cable, apart from 15 meters of buried optical cables with interior must not vertical rod, bury guy anchor stone.Pole line is forbidden to have racing to become, and avoid the direct highway crossing of angular pole, railway.When running into pull and being greater than setting, an angular pole can be divided equally into two equal corners.Measure surely with mark post mark, angular pole has pull record, and angular pole will inwardly move 10 to 20cm, and joining bar will be according to landform height and passing through building, power voltage line size configure pole length.Commmunication company's par is 7 meters, 7 meters to 12 meters of configuration bars, and par span is 50 meters.
(b) installation of messenger wire: be sheathed with several messenger wire anchor ears on electric pole outer wall, the superiors' messenger wire anchor ear is 40 to 60cm apart from the distance of bar bar, distance between adjacent messenger wire anchor ear is 15 to 25cm, the back of the body lever of messenger wire and the be provided with servicing unit of pole length at 5 to 100 meters of reperusing, the long span messenger wire that length is 100 to 200 meters is provided with auxiliary stay, cross-over pole is provided with tripartite's bracing wire, terminal pole does 7/2.6 terminal guy, the long span messenger wire of 200 to 400 meters is provided with fly line, the footpath, top of cross-over pole and terminal pole is more than 19cm, fly line exceedes 400 meter Hou center transition intermediate bar is set, it is more than 8 meters that pull interior angle should do boost line, angular pole boost line adopts 7*2.2 steel hinge line, from messenger wire anchor ear drift bolt to sealing 60cm, with two U-shaped steel cards (10cm) spacing 10cm, 5 to 7 circle end sockets, 5 to 8 meters of pull interior angle messenger wires can have 4.0 iron wire colligations auxiliary, surpassing more than 8 meters pull, Fu Jiao, elevation angle boost line should do boost line with main hoisting line same steel twisted wire on bar, and messenger wire continues and should adopt 3.0 iron wires separately to twine method.
(c) installation of bracing wire: bracing wire anchor ear is arranged on the outer wall of electric pole, terminal draws, come directly towards draw, angular pole draws, fair line bracing wire is installed in messenger wire anchor ear top, side bracing wire is installed in the below of messenger wire anchor ear, bracing wire anchor ear and messenger wire anchor ear spacing 8 are to 12cm, between every one bracing wire anchor ear, spacing is 20cm, bracing wire orientation pull must be measured with tape measure, measure pull take 50 meters of pars distances as measuring foundation, 7 × 2.2 steel strand wire main hoisting lines, pull is below 7.5 meters, and bracing wire should adopt 7/2.6 steel strand wire; Pull is more than 7.5 meters, and bracing wire should adopt 7/2.6 steel strand wire; Pull is more than 7.5 meters, bracing wire should adopt 7/2.6 steel strand wire, terminal guy is all used 7/2.6 steel strand wire, the more than 15 meters angular pole of pull, should do herringbone bracing wire, bracing wire distance is than 1:1, but must not be less than 0.75, windproof drawing is 8 bar one places, and four directions draws general 32 about bars to establish a place (the longest must not be greater than 48 bars apart from); Four directions is drawn and must be done boost line device.
(d) setting of steel handle earth anchor: the bracing wire of angular pole fair line adopts 2100mm × 16mm steel handle earth anchor, the bracing wire of windproof bracing wire side adopts the earth anchor of 1800mm × 12mm steel handle, remaining adopts 2400mm × 20mm steel handle earth anchor, steel handle ground broken out height is 20 to 50 centimetres, within 5 centimetres of angular pole bracing wire orientation permissible variations, center line and the horizontal line of steel handle earth anchor are the angle of 30 ° to 45 °, bury steel handle earth anchor angle underground and want dark, want tiltedly, upper guy and the steel handle soil that is in line back will be tamped, and guy with strut steel handle earth anchor is in principle with mixed earth cast.
(e) installation of optical cable: when the optical fiber in optical cable need to continue, carry out stripping according to joint length in reserve, fixing wanting firmly after optical cable baring on connector box support, carry out fibre core while continuing with heat sealing machine, the all processes of fused fiber splice should adopt OTOR monitoring, measures splicing loss, record simultaneously tap points to test point fibre core spacing from, guarantee that fibre junction average loss reaches the regulation of design document, guarantee optical cable transmission quality, connect after fibre core with heat-shrink tube protection, optical fiber is fixed and the radius of curvature of coiling should be greater than 37.5mm at remaining drum, avoids 1.55um wavelength to produce additional attenuation, fibre core after coiling is fixed in the fine plate of dish with adhesive tape is safe, and when cable splice closure encapsulation, sealant tape should tamp, and cable splice closure holding screw will tighten, and guarantees sealing property, in the situation that confirmation is non-leakage, can install on messenger wire, when optical cable laying, do not allow overbending, its bending radius must not be less than 20 times, footpath, optical cable place, little button and the phenomenon that kinks are not allowed, must not damage cable protection layer, while laying optical cable at the large angular pole of pull, on back of the body shelves or the bar of reperusing, hang with pulley, optical cable is at angular pole, in the bracing wire of four directions, be provided with reserved line, reserved line plastic ripple tube boot, in the middle of reserved bow, be fixed on electric pole with soft binding, optical cable hook spacing is 47 to 53cm, hook and optical cable hasp consistent size, the remaining line length in cable splice closure both sides is 10 meters to 20 meters, the tossing about with reserved frame permanent joint adjacent two bars of bar by remaining line, anti-drum on remaining coil holder.
Utilize above-mentioned steps, circuit stably can be set up to height aerial, reduced and be embedded in the variety of issue that the end, ground occurs, and at high-altitude erection process, utilized various structures to support circuit, make the stability of circuit high, the power transmission efficiency of circuit is stable.
The center line of steel handle earth anchor and the angle of horizontal line the best are 40 °.
The superiors' messenger wire anchor ear is 50cm apart from the optimum distance of bar bar.
The spacing of bracing wire anchor ear and messenger wire anchor ear the best is 10cm.This size is the mutual inductance of considering between length and the circuit of electric pole, realizes most economical effective utilization.
Optimum distance in messenger wire anchor ear between adjacent messenger wire anchor ear is 20cm.After messenger wire installation, because falling phenomenon easily appears in the effect of gravity, therefore, the distance between adjacent messenger wire anchor ear need to be considered this factor, therefore will be apart from controlling as 20cm.
In sum, the invention has the beneficial effects as follows: this technique be by the construction of line to high-altitude, short construction period, and circuit transmission of electricity is stable, has solved the end, existing ground laying-out and has existed the problem of many hidden danger.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited only to this.
Embodiment 1:
Based on to the construction technology of setting up high-altitude circuit, comprise the following steps:
(a) setting of pole line: lay electric pole, the center line of electric pole is straight line, distance between adjacent electric pole is 45 to 55m, the depth scale scope in pole height and bar hole is 6:1 to 7:1, electric pole near roadside, rock does fender pier, fender pier is of a size of upper base diameter 80cm, the diameter 120cm that goes to the bottom, height 80cm.
When pole height is 7.0m, at the dark 1.3m in ordinary soil king-rod hole, the dark 1.2m in hard soil layer king-rod hole, the dark 1.0m in rock king-rod hole; When pole height is 8.0m, at the dark 1.5m in ordinary soil king-rod hole, the dark 1.4m in hard soil layer king-rod hole, the dark 1.2m in rock king-rod hole; When pole height is 9.0m, at the dark 1.6m in ordinary soil king-rod hole, the dark 1.5m in hard soil layer king-rod hole, the dark 1.4m in rock king-rod hole; When pole height is 10.0m, at the dark 1.7m in ordinary soil king-rod hole, the dark 1.6m in hard soil layer king-rod hole, the dark 1.6m in rock king-rod hole; When pole height is 11.0m, at the dark 1.8m in ordinary soil king-rod hole, the dark 1.8m in hard soil layer king-rod hole, the dark 1.8m in rock king-rod hole; When pole height is 12.0m, at the dark 2.1m in ordinary soil king-rod hole, the dark 2.0m in hard soil layer king-rod hole, the dark 2.0m in rock king-rod hole, the dark size in electric pole and hole need to strictly observe this proportional sizes, the stability that guarantee electric pole is installed.
(b) installation of messenger wire: be sheathed with several messenger wire anchor ears on electric pole outer wall, the superiors' messenger wire anchor ear is 50cm apart from the distance of bar bar, distance between adjacent messenger wire anchor ear is 20cm, the back of the body lever of messenger wire and the be provided with servicing unit of pole length at 5 to 100 meters of reperusing, the long span messenger wire that length is 100 to 200 meters is provided with auxiliary stay, cross-over pole is provided with tripartite's bracing wire, terminal pole does 7/2.6 terminal guy, the long span messenger wire of 200 to 400 meters is provided with fly line, the footpath, top of cross-over pole and terminal pole is more than 19cm, fly line exceedes 400 meter Hou center transition intermediate bar is set,
(c) installation of bracing wire: bracing wire anchor ear is arranged on the outer wall of electric pole, terminal is drawn, draw top, angular pole draws, fair line bracing wire is installed in the top of messenger wire anchor ear, side bracing wire is installed in the below of messenger wire anchor ear, bracing wire anchor ear and messenger wire anchor ear spacing 10cm, between every one bracing wire anchor ear, spacing is 20cm, high anchor bar slightly should toss about 60-80 centimetres to bracing wire resultant direction, paying draws shroud ring to be slightly no less than 25 centimetres apart from bar, positive bracing wire and ground keep reasonably height, must not be at the more than 7 meters angular pole of pull installing strut, strut side should be in angular pole on angular bisector, strut pole-footing is wanted 40-60 centimetres of buried depths.Boatswain chair draws cross-arm should be contained in pole 1/5 place.
(d) setting of steel handle earth anchor: the bracing wire of angular pole fair line adopts 2100mm × 16mm steel handle earth anchor, the bracing wire of windproof bracing wire side adopts the earth anchor of 1800mm × 12mm steel handle, remaining adopts 2400mm × 20mm steel handle earth anchor, steel handle ground broken out height is 20 to 50 centimetres, within 5 centimetres of angular pole bracing wire orientation permissible variations, center line and the horizontal line of steel handle earth anchor are the angle of 40 °;
(e) installation of optical cable: when the optical fiber in optical cable need to continue, carry out stripping according to joint length in reserve, fixing wanting firmly after optical cable baring on connector box support, carry out fibre core while continuing with heat sealing machine, the all processes of fused fiber splice should adopt OTOR monitoring, measures splicing loss, record simultaneously tap points to test point fibre core spacing from, guarantee that fibre junction average loss reaches the regulation of design document, guarantee optical cable transmission quality, connect after fibre core with heat-shrink tube protection, optical fiber is fixed and the radius of curvature of coiling should be greater than 37.5mm at remaining drum, avoids 1.55um wavelength to produce additional attenuation, fibre core after coiling is fixed in the fine plate of dish with adhesive tape is safe, and when cable splice closure encapsulation, sealant tape should tamp, and cable splice closure holding screw will tighten, and guarantees sealing property, in the situation that confirmation is non-leakage, can install on messenger wire, when optical cable laying, do not allow overbending, its bending radius must not be less than 20 times, footpath, optical cable place, little button and the phenomenon that kinks are not allowed, must not damage cable protection layer, while laying optical cable at the large angular pole of pull, on back of the body shelves or the bar of reperusing, hang with pulley, optical cable is at angular pole, in the bracing wire of four directions, be provided with reserved line, reserved line plastic ripple tube boot, in the middle of reserved bow, be fixed on electric pole with soft binding, optical cable hook spacing is 47 to 53cm, hook and optical cable hasp consistent size, the remaining line length in cable splice closure both sides is 10 meters to 20 meters, the tossing about with reserved frame permanent joint adjacent two bars of bar by remaining line, anti-drum on remaining coil holder.
Optical cable is joined dish should calculate the omnidistance transmission quality requirements apolegamy of optical cable installation total length and optical fiber single-deck optical cable according to repetition measurement route, and optical cable should accomplish that whole plate rail establishes as far as possible, to reduce transition joint.Big gun fibre coils the radius of curvature that should be greater than regulation in frame, and while utilizing optical fibre in optical cable to connect, its junction loss should meet designing requirement, in the time that welding is tested, and must be strict with the test of OTOR instrument.5 electric poles that terminal pole, leading-in pole, the office of approaching stand must be put lightning conducter, angular pole, cross-over pole, point pole, 12 meters of above special bar, high slope bars utilize bracing wire to enter ground, ground vapour line, lightning conducter application 4.0mm, iron wire along pole directly into ground, its top exceeds masthead 10cm, 4.0mm iron wire is fixed on electric pole with 2.5mm iron wire spacing 40-60cm, utilizes bracing wire to enter the lightning conducter on ground, must not touch messenger wire shroud ring.
After connector box installs, should be filled with 40KPA air pressure, under 1000N axial tension or 3000N/10CM side direction uniform pressure condition, air tight, indeformable and be full of cracks.Box inner disc stays the radius of curvature of optical fiber not produce additional attenuation (test 1310nm and two wavelength of 1550nm) to optical fiber.Before fiber cable laying, should carry out single-deck checkout, optical cable attenuation must meet designing requirement, mainly measures 1310nm, the work attenuation of 1550nm window, and note optical cable outer jacket free from flaw, fracture; Check cable end other, according to the test data of optical cable attenuation, before fiber cable laying, join dish by landform situation, avoid breaking apart by chopping arbitrarily stern fast, avoid at road center manhole or bustling business district operation joint.Spend length by optical cable laying traction, each point (especially turning change place and traffic main artery) should someone monitor along the line, and keeps in touch at any time, to take measures at the time of emergency.Optical fiber transmission property is unaffected when guaranteeing that optical fiber is subject to maximum lateral pressure, and fiber cable laying process should guarantee that radius of curvature is not less than 20 times of the outer warp of optical cable.In optical cable distraction procedure, tractive effort will be fixed on strengthening core, and its maximum tractive effort is no more than the title tension force of optical cable, the laying tractive effort and must not exceed 1500N of the aerial fiber cable that this engineering provides.For guaranteeing transmission quality, should reduce fiber cable joint as far as possible, after drawing, duct fiber cable must not cut off arbitrarily.The same formula of the duct fiber cable that this engineering provides and aerial fiber cable, its joining place can extend each other.
Cable can also adopt following size and step to set up:
Principle is set up in new power pole line: this engineering is complete in newly establishing pole line, the basic bar height in new power pole line is 7m, it is all cement pole, interval 8 bars arrange both sides' bracing wire in principle, 32 bars arrange cubic bracing wire, between two bars, spacing is 50m, in engineering for padding chassis at the bottom of the bars such as the angular pole in the soft area of soil property, cross-over pole, terminal pole, to strengthen intensity and the stability of pole line.
Messenger wire is installed: the mode that this engineering aerial fiber cable employing three single groove clamping plate of messenger wire hook and messenger wire anchor ear are fixing, and messenger wire is 7/2.2 galvanized strand wires, links up with the overall plastic hook into 35mm, interval 50cm+5, the messenger wire erection dip of general pole line is carried out surely by standard.
Optical cable laying: optical cable laying should draw by pulley, must not there is overcurrent bending in centre; Forbid to occur torsional angle and beat ringlet phenomenon.
The horizontal range 11/3H of the nearest rail of electric pole spacing railway, H is that electric pole is high at the bar on ground; Horizontal range 0.5m when electric pole is parallel with limit, pavement, the distance 1.0m that electric pole is parallel with underground utilities, the Edge Distance 2.0m of electric pole and building construction, bracing wire is for strengthening this engineering pole line intensity completely, design is determined in principle: be greater than 1 meter in angular pole place, pole line pull and establish one of 7/2.6 bracing wire, on straight line pole, establish the both sides of a place bracing wire every 8 bars simultaneously, in hop, every 32 bars do place four directions bracing wire, the side of both sides, cubic bracing wire adopts 7/2.2 steel strand wire, and fair line is drawn and adopted 7/2.6 steel strand wire.For strengthening pole line intensity completely, design determines at cubic stay rod and lets out power termination, adopts steel strand wire and the U-shaped clamp method that terminates, and its bracing wire utilizes former fair line bracing wire no longer to set up.This engineering pole line has very large part to be located in mountain area, and gradient bar and to hang (back of the body) lever more is to strengthen pole line intensity, reduces to hang the reinforcement of (back of the body) lever messenger wire, and design consideration terminates hanging (back of the body) lever place messenger wire; And in its adjacent termination that rehearses, as with adjacent leverage angular pole extend one grade rehearse termination after set up again top draw one.In standing, optical cable lays; from base station, built on stilts laying to base station machine room should cause optical fiber cable distribution frame along chute; require (or basement) reserved 10-15 rice optical cable in base station; dish stays and is fixed on brandreth or wall; optical cable becomes end place that all the other hardwares are received on protection ground wire, and hangs up sign board at optical cable.Fibre junction adopts burning-on method, according to the technical merit that continues, the designing requirement eventually interior each splicing loss mean value of the section of continuing is not more than 0.08db/, each fibre core is not more than 0.08db/ at the average loss of hop nipple simultaneously, in joint, optical cable and optical fiber should be reserved certain surplus, and metal strengthening core and connector box base will be connected firmly.Optical cable is laying and installation process, should strictly control drawing tension and radius of curvature requirement.In construction and installation process, optical cable bending radius can not be less than 20 times of optical cable, is just not less than 10 times of the outer warp of optical cable after its installation is fixing.Optical cable, laying stressed wanting evenly in process, must strictly be controlled the unlikely tensile strength that exceedes optical cable of tractive effort, to landform complicated highway section can, employing " S " word step traction mode lay.When part optical cable is adopted to buried laying, should carry out the safeguard measure of optical cable.This engineering adopts without copper cash optical cable, be built on stilts and pipeline laying completely, while nonserviceabling near transmission line reducing due to electromagnetic induction, the factors such as earth potential rising, the warmness dangerous influence producing on optical cable hardware, for guaranteeing optical cable plastics outer jacket pillbox Compressive Strength, take following measures: fiber cable joint place disconnects it in metal strengthening core and hardware, do not do the connection on electric; Optical cable whole process is not done ground connection, but the hardware of requirement office station optical cable adopts the insulation of BV-16MM2 to be connected with frame protective earthing; When constructing and checking joint, should and take corresponding technical safety measures by hardware temporary grounding near approaching weakness equipment.
Consider that lightning protection measures installing on five bars of each terminal pole, leading-in pole and approaching office adopts 4.0 the directly grounded lightning conducter of iron wire (direct burial electric pole ground wire).In the power of the letting out termination of messenger wire, angular pole, cross-over pole, point pole, slope push rod and more than 12 meters electric pole places be connected messenger wire and make lightning protection lightning conducter (stay-supported lightning conducter) with bracing wire.Overhead suspension wire requires every kilometer of ground connection once, can adopt 4.0 iron wire direct burial earth connection mode ground connection, while not reaching standard as earth resistance, can adopt 50*50*5 angle steel ground connection and add depressant prescription measure, earth resistance can meet following table according to various places soil property situation and require:
Adopt monomode fiber in high-altitude, Wuyi Mountain construction of line engineering, system works wavelength 1550NM, determines hop length by optical fiber attenuation, and computing formulaization is as follows: L=Rs-Pr-Ao-Me/Af+As+Mc
In formula: Ps is S point incident optical power, light device the get-4db of power P s that starts be example.Pr is that R points out fiber optical power, get-38db, AO point for S point and R point optical fiber connector attenuation (being articulation attenuation) ME be that equipment degree more than needed is got 3db, Af is that the average attenuation value of optical fiber is got 0.22db/km, As is the average every kilometer of welding attenuation 0.04db/km of optical fiber, and Mc is that optical cable degree more than needed is got 0.1db/km.
Through calculating, Lin Qu base station to the cable length at Shui Ting, lower kitchen range Yankee station is 11 Km, average every kilometer of optical cable attenuation 0.22 db, lightguide cable link attenuation 4.86 db, 1 of optical cable permanent joint, optical cable permanent joint attenuation 0.08 db, the total attenuation of lightguide cable link (200C) 5.567 db, equipment degree more than needed 3 db, circuit degree more than needed 2.21 db, total degree more than needed 5.52 db/km, transmitting optical power (S point mean value)-4 db/km, receiving sensitivity (R point BER=10)-9.986 db/km, budget received optical power-36.45 db/km.
Show by above-mentioned data, the cable signal that this high-altitude circuit is carried can meet use, and for the region of mountain area geology more complicated, high-altitude circuit is with respect to the laying on bottom line road, ground, and its signal strength signal intensity is high.
The above; it is only preferred embodiment of the present invention; not the present invention is done to any pro forma restriction, any simple modification, equivalent variations that every foundation technology of the present invention, method are done above embodiment in fact, within all falling into protection scope of the present invention.
Claims (5)
1. based on to the construction technology of setting up high-altitude circuit, it is characterized in that, comprise the following steps:
(a) setting of pole line: lay electric pole, the center line of electric pole is straight line, distance between adjacent electric pole is 45 to 55m, the depth scale scope in pole height and bar hole is 6:1 to 7:1, electric pole near roadside, rock does fender pier, fender pier is of a size of upper base diameter 80cm, the diameter 120cm that goes to the bottom, height 80cm;
(b) installation of messenger wire: be sheathed with several messenger wire anchor ears on electric pole outer wall, the superiors' messenger wire anchor ear is 40 to 60cm apart from the distance of bar bar, distance between adjacent messenger wire anchor ear is 15 to 25cm, the back of the body lever of messenger wire and the be provided with servicing unit of pole length at 5 to 100 meters of reperusing, the long span messenger wire that length is 100 to 200 meters is provided with auxiliary stay, cross-over pole is provided with tripartite's bracing wire, terminal pole does 7/2.6 terminal guy, the long span messenger wire of 200 to 400 meters is provided with fly line, the footpath, top of cross-over pole and terminal pole is more than 19cm, fly line exceedes 400 meter Hou center transition intermediate bar is set,
(c) installation of bracing wire: bracing wire anchor ear is arranged on the outer wall of electric pole, terminal draws, come directly towards draw, angular pole draws, fair line bracing wire is installed in messenger wire anchor ear top, side bracing wire is installed in the below of messenger wire anchor ear, bracing wire anchor ear and messenger wire anchor ear spacing 8 are to 12cm, and between every one bracing wire anchor ear, spacing is 20cm;
(d) setting of steel handle earth anchor: the bracing wire of angular pole fair line adopts 2100mm × 16mm steel handle earth anchor, the bracing wire of windproof bracing wire side adopts the earth anchor of 1800mm × 12mm steel handle, remaining adopts 2400mm × 20mm steel handle earth anchor, steel handle ground broken out height is 20 to 50 centimetres, within 5 centimetres of angular pole bracing wire orientation permissible variations, center line and the horizontal line of steel handle earth anchor are the angle of 30 ° to 45 °;
(e) installation of optical cable: when the optical fiber in optical cable need to continue, carry out stripping according to joint length in reserve, fixing wanting firmly after optical cable baring on connector box support, carry out fibre core while continuing with heat sealing machine, the all processes of fused fiber splice should adopt OTOR monitoring, measures splicing loss, record simultaneously tap points to test point fibre core spacing from, guarantee that fibre junction average loss reaches the regulation of design document, guarantee optical cable transmission quality, connect after fibre core with heat-shrink tube protection, optical fiber is fixed and the radius of curvature of coiling should be greater than 37.5mm at remaining drum, avoids 1.55um wavelength to produce additional attenuation, fibre core after coiling is fixed in the fine plate of dish with adhesive tape is safe, and when cable splice closure encapsulation, sealant tape should tamp, and cable splice closure holding screw will tighten, and guarantees sealing property, in the situation that confirmation is non-leakage, can install on messenger wire, when optical cable laying, do not allow overbending, its bending radius must not be less than 20 times, footpath, optical cable place, little button and the phenomenon that kinks are not allowed, must not damage cable protection layer, while laying optical cable at the large angular pole of pull, on back of the body shelves or the bar of reperusing, hang with pulley, optical cable is at angular pole, in the bracing wire of four directions, be provided with reserved line, reserved line plastic ripple tube boot, in the middle of reserved bow, be fixed on electric pole with soft binding, optical cable hook spacing is 47 to 53cm, hook and optical cable hasp consistent size, the remaining line length in cable splice closure both sides is 10 meters to 20 meters, the tossing about with reserved frame permanent joint adjacent two bars of bar by remaining line, anti-drum on remaining coil holder.
2. according to claim 1ly it is characterized in that based on to the construction technology of setting up high-altitude circuit, center line and the horizontal line of described steel handle earth anchor are the angle of 40 °.
3. according to claim 1ly it is characterized in that based on to the construction technology of setting up high-altitude circuit, described the superiors messenger wire anchor ear is 50cm apart from the distance of bar bar.
4. according to claim 1ly it is characterized in that described bracing wire anchor ear and messenger wire anchor ear spacing 10cm based on to the construction technology of setting up high-altitude circuit.
5. according to claim 1ly it is characterized in that based on to the construction technology of setting up high-altitude circuit, the distance in described messenger wire anchor ear between adjacent messenger wire anchor ear is 20cm.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114721100A (en) * | 2020-12-22 | 2022-07-08 | 江苏英杰光缆科技有限公司 | Galvanized aluminum-magnesium alloy metal reinforcement core for optical cable |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101201438A (en) * | 2007-12-13 | 2008-06-18 | 王甘雨 | Optical communication transmission network |
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2014
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| CN101201438A (en) * | 2007-12-13 | 2008-06-18 | 王甘雨 | Optical communication transmission network |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114721100A (en) * | 2020-12-22 | 2022-07-08 | 江苏英杰光缆科技有限公司 | Galvanized aluminum-magnesium alloy metal reinforcement core for optical cable |
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Application publication date: 20140611 |