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交通信號頭分線盒和導線安裝手冊-中英對照

發布時間:2012-12-20      閱讀次數:1601

交通信號頭分線盒和導線安裝手冊-中英對照
外殼: 設備設置在不受氣候影響的鋼櫥中。
1.為終端服務電纜提供斷路器。斷路器取最小值,15安培等級。
2.在每個櫥柜中提供便利容器。單個德國樣式容器2個插腳接地(Legrand 74130 類型) 使用插座附件,一個60 瓦特燈具,插上插頭可以提供照明,而且不影響任何其它設備。
3. 在每控制器櫥柜和地接櫥柜提供地接母線。
F. 電纜:電纜安裝IEG 標準相符采用銅導體,包括:
1.信號電纜: 24 芯x 1.5毫米 --- 鎧裝,直接埋設。
2.電纜:3 芯x 16毫米+接地導體16毫米
3.車輛檢測器的支線電纜: 2 芯x 1.5毫米 -屏蔽
4.環路:依大小排列2.5-4毫米 – 采用XLPE/PVC雙絕緣多股導線。
G.信號桿:
1. 信號桿和支架材料:
a.安裝批準的圖紙要求,全部材料必須全新,不得有任何損壞。
b. 信號桿和支架材料,包括基扳,安裝根據ASTM A123規定采用熱浸鍍鋅。 在Corniche 路和在Shareh Al Sahl上,信號桿和支架設計統一路燈建筑設計。
2. 信號桿和支架設計
a.全部車間或現場零部件和組裝的設計必須符合MSHTO "高速公路結構支撐物標準規范,Luminaires和交通信號"的要求,最新版,除非另有說明,并符合皇室委員會在第1到7 條款標準。
b.設計風速為超出地面10米的高度,在最不利的方向不少于160 公里/小時。
c.全部零部件的尺寸必須進行選擇,以便結構或者任何零部件在規定負荷下不發生故障、斷裂、永久變形或者在任何額定或風力負荷下發生振動。
d.信號桿和支架采用錐形、無縫、管狀類型的圓橫截面。
e. 信號墻必須具有足夠厚度,柱子的總直徑必須足以承受電纜終端,除非另作說明。
f. 信號桿必須具有鞋面基礎類型。鞋面基礎至少有4個孔洞,備錨栓使用。信號桿配有在基礎附近確定的位置不受氣候影響通道門,依大小排列插入供電電纜終端和保險絲裝置中。信號桿使用皇室委員會批準的尼龍、氯丁橡膠或者橡皮襯墊材料,不受氣候影響。除在適當的位置使用膠粘劑貼墊片之外,還可以使用金屬夾具。 門裝備有保留機制和一個正極鎖定裝置,配備有一把可移動的六角形鑰匙。 在門打開處的護板設置適當的加固裝置。緊挨門設置合適的非吸濕的底板設施。 底板通過焊接固定在柱子內側。將鋼電鍍螺柱焊接在更低的通道門附近。全部焊接點必須平滑,除去濺渣,柱子內部和外表面清洗干凈,不得有任何油脂。
g.每根桿的錨栓基座至少有4個錨栓。錨栓的直徑、長度和間隔必須符合制造商設計要求。全部在底層結構等級和錨硬件必須在現場扭緊后,覆蓋瀝青薄層。 固定螺栓和螺母使用316 類型L 不銹鋼。
h. 交通信號頭分線盒和導線:
(1)一個有完整終端的分線盒設置在桿的基礎中,這樣從門的位置可以方便接入。
(2)終端必須適于從桿的基礎接入多觸電電纜終端;電線接到柱子內,方便交通信號頭的連接。
i.鋼法蘭板材必須符合ASTM A36規定的要求,與側板切線軸和三角板子焊接在一起,支持兩個上下端面。
j. 柱子頂部的法蘭板材和鋼材法蘭必須符合ASTM A36規定的要求,和支架末端焊接在一起。
k.每只支架包括可移動封蓋、電線出路的金屬孔眼、托架和信號吊架組件的型號、數量和位置必須在圖紙上標出。
1.柱子可以選擇整塊鋼底座,要求符合A36 ASIM的規定,或者采用鑄鋼錨栓基座,要求符合A27 ASTM,等級65-35的規定。
m. 采用兩個連續的焊接點嵌入柱子進行保護,一個焊接點在柱子內側,另一個在柱子基礎的頂部外側的末端上。
3.完工:全部鋼材組成部分必須經過熱浸鍍鋅處理,并且符合第09875 部分防腐蝕條款的規定,獲得皇室委員會的批準。
H.混凝土材料:混凝土和其它基礎材料必須符合03300部分的規定,"現場澆注混凝土"包括防水防腐蝕保護和絕緣板。
I 檢測器環路:
1.環路檢測器電線由2.5毫米、90°C組成。600 V標準電線帶有2個通過環路的彎角。 環路末端留有大約2米長環線,留有通信口方便接入。
2. 承包商有責任削減圖紙中規定管溝的尺寸和形狀,承包商也可以從每個環到路線的邊緣切一個管溝引線。環路的轉角可以斜切。保證管溝干凈平整。所有的削減由一條單個的圓形通道完成。
3.管溝為褐色,在切割后不得有任何碎片和水分留在管溝內。如果環線沒有立即安裝,安裝皇室委員會的要求,為防止槽口崩塌,承包商必須安裝一根木頭或者其它填料。如果環路的施工要求有路肩,在車行道水平下面和信道的終端必須安裝一條導管通過路肩。
4.形成環路的電線在其整個長度必須保持連續,并且安裝不得有任何捻接。環路電線從管溝延伸到最近的通信口。從這里接入到環檢測器并進行密封。
5.環檢測器電線必須采用以下方式安裝。管溝為褐色,在切割后不得有任何碎片和水分留在管溝內,電線的轉角處必須放在入槽內,不得有紐結或者卷曲,在槽角落絕緣材料周圍不得有拉緊或者伸展。將一根圓角木頭放在管溝的底部方便安排電線。在電線安置后,檢查電線是否松弛,拉出以部分,檢查是否繃緊。 如果發現有任何上述問題,立即進行改正。
6.槽內的兩根電線,可以形成引入電線,可以從環路到最近的通信口和至少7根300毫米的電線纏繞。
7. 使用合適檢測器檢查完成后的環線的連續性,不得超過指示絕緣材料的額定電壓等級。
 8.承包商必須對環路執行電阻測試,確定這根環線的地接電阻是否為10 兆歐或更大。如果地接電阻,在安置密封材料之前小于10兆歐,電線應該檢查絕緣材料是否損壞。承包商將根據需要采取糾正措施,直到達到要求的數據。

 9.信道采用填縫料密封(Bitumen 85125國家貿易部門,郵政信箱5044 Jeddah電話02-672 3308)安裝制造商的指示說明使用。在任何脫溶過程中,保護層不得安置在信道內。承包商必須保證信道完全覆蓋保護層,在信道表面的保護層不得有任何氣泡。保護層設置在信道上,不得設置在車行道上。意外涂在車行道上的任何保護層必須除去。承包商必須保證在允許交通移動之前,保護層足夠變硬。

10.在鋸切部位、車行道斜面、氣密層和水坑, 承包商必須從低位開始,設置氣密層,然后在車行道表面上設置一條50毫米屏蔽帶,用來填充氣密層材料。
E. Housing: The equipment shall be housed in a weatherproof steel cabinet.
1. Provide circuit breaker(s) for terminating service wire. Circuit breaker(s) shall have minimum, 15 ampere rating.
2. Provide convenience receptacle in each cabinet. Receptacle to be a single German style 2 pin with ground (Legrand type 74130) outlet so located that by use of a socket attachment, a 60 watt lamp can be plugged in to provide light without disturbing any other equipment.
3. Provide an equipment grounding bus in each controller cabinet and ground the bus to the cabinet.
F. Cable: Cable shall be copper conductors conforming to IEG Standards and shall include:
1. Signal Cable: 24 core x 1.5 mm --- armoured for direct burial.
2. Power Cable: 3 core x 16 mm + ground conductor 16 mm
3. Feeder Cable for Vehicle Detector: 2 core x 1.5 mm - shielded
4. Loop Wire: Size 2.5-4 mm - stranded copper conductor with XLPE/PVC dual insulation.
G. Signal Poles:
1. Signal Pole and Arm Material:
a. All materials shall be furnished new and undamaged in accordance with the approved drawings.
b. Pole and arm, including base plate, to be hot dip galvanized in accordance with ASTM A123. On Corniche road and on Shareh Al Sahl
16800-10 Contract No. PIC A-1093D
 
the poles and arms design shall be integrated into the overall architecture of the road lighting poles.
2. Signal Pole and Arm Design
a. Design of all components and their assembly in the shop or in the field shall meet the requirements of MSHTO "Standard Specifications for Structural Support for Highway Signs, Luminaires and Traffic Signals", latest edition, unless otherwise specified in the Specifications and shall comply with Royal Commission standard details shown on Exhibit 1 thru 7.
b. The design wind speed shall be not less than 160 km/hr blowing in the most unfavourable direction at a height of 10 meters above ground.
c. Dimensions of all components shall be selected so that the structures or any of the components will not fail under the specified loads, nor will they crack, deform permanently or vibrate under the action of any combination of dead, live and wind loads.
d. Pole and arm to be tapered, seamless, tubular type with circular cross-section.
e. Pole walls shall have a sufficient thickness and the overall diameter of the column at its base shall be sufficient to accept the cable termination unless otherwise indicated.
Pole shall be of shoe base type. The shoe base shall have a minimum of four holes for accepting the anchor bolts. Poles shall be provided with one weatherproof access door positioned near the base, sized to insert the supply cable terminations and fuse unit. Poles shall have Royal Commission approved nylon, neoprene or rubber gasketing for weather-proofing the door. Metal clips shall be used in addition to adhesive for retaining the gasket in place. The door shall be flush fitted with retaining mechanism and a positive locking arrangement having a removable hexagonal key. Appropriate reinforcement shall be provided in the pole at the door openings. A non-hygroscopic baseboard of each size to accept the appropriate equipment shall be fitted next to the door. The baseboard shall be fixed to the inside of the pole by means of custom made welded brackets. A steel galvanized stud shall be welded inside the pole near the lower access door. All welds shall be smooth and spatter removed, the interior and exterior of the poles shall be cleaned of pickling or blasting and shall be free of any grease.
g. Each pole anchor base shall have a minimum of four anchor bolts. Anchor bolt diameter, length, and spacing will be defined in accordance with manufacturers design practice. All below grade structure and anchor hardware shall be field finished with a bituminous coating after
 
anchor nuts are torqued. Anchor bolts and nuts shall be type 316 L stainless steel.
h. Junction Box and Wiring to Traffic Signal Heads:
(1) A junction box complete with terminals shall be in the base of the pole, easily accessible from the door.
(2) The terminals shall be suitable for accepting the terminations of the multiconductor cables entering the pole from its base; the wires going up inside the pole for connection to traffic signal heads.
i. Steel flange plate assembly meeting requirements of ASTM A36 to be welded to pole near the top and be supported with side plates tangent to shaft and gusset plates both top and bottom.
j. Steel flange plate, and matching flange plate at top of pole, meeting ASTM A36, to be welded to butt end of arm.
k. Each arm to include removable cap for tip, grommeted wire outlets, sign support brackets, and signal hanger assemblies of type, quantity and at locations shown on drawings.
1. Poles to have either a one piece steel base plate meeting requirements of ASIM A36 or a cast steel anchor base meeting requirements of ASTM A27, Grade 65-35.
m. Base to telescope the pole and be secured to pole with two continuous welds, one on inside of base at end of pole and, the other on outside at top of base.
3. Finish: All steel components shall be hot dip galvanized and corrosion protected in accordance with Section 09875 and as approved by the Royal Commission.
H. Concrete Materials: Concrete and' other materialist for foundations shall comply with Section 03300, "Cast-In-Place Concrete" including waterproofing corrosion protection and insulation board.
Detector Loop:
1. The loop detector wire will consist of 2.5-mm 90°C. standard wire 600V with two turns through the loop. The ends of the loop wire about 2 meters long will be left in the handhole for splicing purposes.
2. It will be Contractor's responsibility to saw cut a trench of the dimensions and shape specified in the approved drawings. The Contractor shall also saw cut an access trench from each loop to the edge of the route. The corners of the loops shall be cut diagonally to. assure a clean, smooth
 
trench. All cuts shall be accomplished in a single pass with a circular pavement cutting saw.
3. The trench shall be blown free of debris and moisture after the trench has been cut. If the loop wire is not immediately installed the Contractor shall install either a wood or other filler, approved by the Royal Commission, to prevent the slot from collapsing. If a curb is proposed for construction where the loops are being installed, a conduit shall be installed through the curb below the roadway level and terminate in the access channel.
4. The wire forming the loop shall be continuous throughout its length and installed without splices. The loop wire shall extend from the trench to the nearest handhole. At this point they shall be sealed for future splicing to loop detector leads.
5. The loop detector wire shall be installed in the following manner. After the trench is blown free of debris and moisture, the turns of wire shall be laid in the slot so that there are no kinks or curls, and no straining or stretching of the insulation around the corners of the slot. A piece of wood with rounded corners shall be used to seat the wire in the bottom of the trench. After the wire is placed, it shall be rechecked for slack, raised portions, andlor tightness. if any of the foregoing are found, they shall be corrected.
6. The two wires from the slot, which form the lead-in wires, shall be twisted together with a minimum of seven turns per 300 mm from the loop to the nearest handhole.
7. The completed loop wire shall be checked for continuity using a suitable tester that will not exceed the voltage rating of the lead insulation.
8. The Contractor shall perform a resistance test on the loop wire to determine that the resistance to ground is ten megohms or greater. If the resistance to ground, prior to placing the sealant is less than ten megohms, the wire should be checked for insulation damage. The Contractor shall make such corrective measures as necessary until the desired readings are obtained.
9. The channel shall be sealed with joint sealant (Bitumen 85125 supplied by National Trading Establishment, P.O. Box 5044 Jeddah. Tel No. 02-672 3308) applied in accordance with the manufacturer's instructions. The sealer shall not be placed in the channel during precipitation of any kind. The Contractor shall ensure that the channel is completely filled with the sealer and that there are np air bubbles in the sealer below the surface. The sealer shall be placed in the channel and not on the roadway. Any sealer which is accidentally applied to the roadway shall be removed. The Contractor shall ensure that the sealer is sufficiently hardened before allowing traffic to move over the area.
 10. At those locations where the saw cuts are in a roadway that slopes and the sealant runs and puddles, the Contractor shall, starting at the low end, place the sealant and then place a 50 mm wide strip of masking tape on the roadway surface over the saw cut to contain the sealant.

2012.12.20

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