靈敏度系統(tǒng)推薦規(guī)程-中英對照
靈敏度系統(tǒng)應(yīng)用、設(shè)計、設(shè)施、維護(hù)和測試推薦規(guī)程
2009年修訂(5頁)
A.目的
這部分內(nèi)容描述了靈敏度系統(tǒng)應(yīng)用、設(shè)計、設(shè)施、維護(hù)和測試推薦規(guī)程，符合手冊第3.1.20部分(自動高速公路-鐵路平交道口報警系統(tǒng)控制推薦功能/操作指南)。陳述了操作規(guī)程建議的一般規(guī)定。
B.總則
1. 靈敏度系統(tǒng)應(yīng)用設(shè)計、設(shè)施、維護(hù)和測試符合制造商的和鐵路說明。
2. 在影響報警的正常運(yùn)行的變動或測試之前，在報警高速公路交通采取適當(dāng)規(guī)程。
3. 當(dāng)系統(tǒng)或軌道電路發(fā)生變動或調(diào)整時，對安裝進(jìn)行測試，保證系統(tǒng)操作符合要求。
C.應(yīng)用設(shè)計
1.引路軌道電路通過終端轉(zhuǎn)轍器和絕緣聯(lián)合旁路單位控制，如有要求，必須符合制造商和鐵路說明，并且不得干涉其它操作信號系統(tǒng)。
2. 終端轉(zhuǎn)轍器的地點符合手冊第3.3.10部分定義 (高速公路-鐵路平交道口報警系統(tǒng)確定報警時間和最小引路距離計算推薦規(guī)程)，以及制造商和鐵路的說明。
3.在使用重疊或相鄰音頻軌道電路處，整體應(yīng)用設(shè)計和設(shè)施要求保證兼容性，所有設(shè)備之間，不得有相互干涉現(xiàn)象。
4.選擇頻率和軌道電路長度，采用最小軌間電阻運(yùn)行。軌間電阻，包括分布電阻和集中電阻，例如在高速公路-鐵路交叉道口的維護(hù)應(yīng)該允許系統(tǒng)保持正確操作。
AREMA® C&S手冊
3.3.15部分 2009
5. 在雙向引路軌道電路系統(tǒng)應(yīng)用中，引路軌道電路采用制造商指示相等或相當(dāng)?shù)膽?yīng)用。
6.系統(tǒng)僅適用于控制充分轉(zhuǎn)軌部分的軌道電路。如果正常鐵路運(yùn)輸沒有提供充分轉(zhuǎn)軌，意味應(yīng)該考慮轉(zhuǎn)軌在不利條件下，采取措施改進(jìn)轉(zhuǎn)軌或軌道電路。
7.軌道電路容易在60赫茲和諧頻時，受到從商業(yè)電力系統(tǒng)的干擾。通過適當(dāng)?shù)母綦x、排除搖擺的路軌聯(lián)接和其它方法使干涉減到最小。存在干涉的地方，選擇的系統(tǒng)操作頻率應(yīng)避免頻率干擾。高能設(shè)置、過濾器和轉(zhuǎn)轍器，必須符合制造商和使用鐵路的指示。
8.提供辨認(rèn)方式，保證可適用的極限不超過手冊第11.5.1部分(電子和電子鐵路信號系統(tǒng)設(shè)備推薦環(huán)境要求) 每個系統(tǒng)的組分規(guī)定的范圍。
9.浪涌防護(hù)符合制造商的和鐵路提供的要求，符合手冊第11.2.1部分描述 (電子浪涌保護(hù)信號系統(tǒng)推薦一般操作)。
10.軌道引線連接應(yīng)該遵照制造商和鐵路的推薦。
11.符合制造商要求，DC和機(jī)電編碼的DC軌道電路要求與系統(tǒng)反應(yīng)器和過濾器隔絕。
12.電子AC和電子DC代碼道電路與系統(tǒng)的隔絕必須符合制造商的和鐵路的要求合。
D.安裝
1.除非按照鐵路政策經(jīng)過權(quán)限批準(zhǔn)，安裝的所有作業(yè)與設(shè)計規(guī)劃一致。
AREMA® C&S手冊
2009 3.3.15部分
2.所有軌道電路接線的絞線必須符合制造商的指示，使相鄰電路之間電感耦合減到最小。避免多余軌道電路接線，不允許盤繞接線。
3.查看軌道引線極性是否符合制造商要求。
4.在裝置通電前，檢查設(shè)備電源是否適用設(shè)備。檢查內(nèi)容包括電壓、極性、容量、波紋電壓和充電電池狀態(tài)。
5. 在裝置通電前，所有跨接線、開關(guān)和其它站點規(guī)定硬件編程必須按照要求操作。在裝置初次通電后，如適用，完成站點規(guī)定軟件編程。
6.程序的最初調(diào)整和設(shè)定要求符合制造商和鐵路的指示。在繼續(xù)進(jìn)行實用測試之前，改正反常征兆。
7.引路和島式軌道電路的校準(zhǔn)和轉(zhuǎn)轍器測試要求符合制造商和鐵路的要求。
8. 遙控和/或當(dāng)?shù)亟徊娴揽诩せ畹念~外輸入和輸出電路操作，如果使用，進(jìn)行檢查保證復(fù)核所有可適用的設(shè)計參數(shù)。
9.按照要求觀察列車移動，保證系統(tǒng)能夠充分執(zhí)行軌道電路。如果需要進(jìn)行開關(guān)特別測試，必須符合制造商和鐵路的指示。
10.如果提供高速公路交通信號互聯(lián)操作，必需進(jìn)行檢查保證復(fù)符合所有可適用的設(shè)計參數(shù)。
11.如果安裝冗余設(shè)備，所有正常和備用單位都有進(jìn)行檢查和測試。如果有必要，檢查傳送單位的正確。
12.在信號區(qū)域，所有信號系統(tǒng)要求執(zhí)行適用測試核實正確的操作。
13. 如鐵路部門指示，檢查和測試的結(jié)果，以及其它檢查都必須進(jìn)行記錄。
Recommended Instructions for the Application, Design, Installation, Maintenance
and Test of Motion Sensitive Systems
Revised 2009 (5 Pages)
A. Purpose
This Manual Part recommends instructions for the application, design, installation, maintenance and test of motion sensitive systems conforming to Manual Part 3.1.20 (Recommended Functional/Operating Guidelines for Motion Sensitive Systems to Control Highway-Rail Grade Crossing Warning Devices). They set forth general requirements representing recommended practice.
B.General
1.Application design, installation, maintenance and testing of these motion sensitive systems (system) shall be done in accordance with manufacturer's and railroad's instructions.
2.Proper procedures shall be taken to warn highway traffic before changes or tests are made which would affect normal operation of the warning devices.
3. Tests shall be made upon installation and when changes or adjustments are made to the system or track circuit to assure that the system is
operating as intended.
C. Application Design
1. Approach track circuits shall be defined with termination shunts and insulated joint bypass units, where required, which meet manufacturer's and railroad's instructions and shall not interfere with operation of other signal systems
2. Location of the termination shunt(s) are defined by Manual Part 3.3.10 (Recommended Instructions for Determining Warning Time and Calculating Minimum Approach Distance for Highway-Rail Grade Crossing Warning Systems), as well as manufacturer's and railroad's instructions.
3. Where overlapping or adjacent audio frequency track circuits are used, overall application design and installation shall assure compatibility, without mutual interference, between all devices.
4. Frequency and track circuit length should be selected to operate with minimum ballast resistance. Ballast resistance, including distributed resistance and lumped resistance, such as at highway-rail grade
2010 AREMA -1-
AREMA® C&S Manual
Part 3.3.15 2009
crossings, should be maintained at levels which allow proper operation of the system.
5. Where systems are applied in bi-directional approach track circuit applications, approach track circuits shall be of equal length or balanced as instructed by the manufacturer for that application.
6. Systems shall be applied only to track circuits which will provide adequate shunting. If normal rail traffic will not provide adequate shunting, means
should be taken to improve shunting or track circuits which provide
shunting under adverse conditions should be considered.
7. Track circuits may be susceptible to interference from 60 Hz and harmonics induced from commercial power systems. Interference should be minimized through proper isolation, elimination of staggered rail joints and other means. Where interference exists, system operating
frequencies shall be chosen to avoid interfering frequencies. High power settings, filters and tuned shunts, as instructed by manufacturer and
railroad, should be used where required.
8. Means shall be provided to assure the applicable limits identified in Manual Part 11.5.1 (Recommended Environmental Requirements for
Electrical and Electronic Railroad Signal System Equipment) are not exceeded for each component of the system.
9. Surge protection shall be provided per manufacturer's and railroad's requirements as described in Manual Part 11.2.1 (Recommended General
Practices for Electrical Surge Protection for Signal Systems).
10. Track lead connections should comply with manufacturer's and railroad's recommendations.
11. DC and electro-mechanical coded dc track circuits shall be isolated from systems with reactors and/or filters when required by the manufacturer.
12. Electronic ac and electronic dc coded track circuits shall be isolated from systems in accordance with manufacturer's and railroad's requirements.
D. Installation
1. All aspects of the installation shall be in agreement with the design plan unless authorized by the proper authority in accordance with the railroad's policies.
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AREMA® C&S Manual
2009 Part 3.3.15
2. All track circuit wiring shall be twisted per manufacturer's instruction to minimize inductive coupling between adjacent circuits. Excess track circuit
wiring shall be avoided and coiling is prohibited.
3. Observe manufacturer requirements for track lead polarity.
4. Checks of power supply for device(s) shall be made before power is applied to device(s). Checks shall include voltage, polarity, capacity, ripple
voltage and state of charge of batteries.
5. Before applying power to device(s), all jumpers, switches and other site- specific hardware programming shall be performed as required. After
initially applying power to device(s), site-specific software programming shall be completed, if applicable.
6. Initial adjustment and/or setup procedures shall be completed per manufacturer's and railroad's instructions. Abnormal indications shall be
corrected before proceeding with in-service testing.
7. Calibration and shunt tests shall be made on each approach and each island track circuit per manufacturer's and railroad's requirements.
8. Operation of additional input and output circuits for remote and/or local crossing activation, if utilized, shall be checked to assure that they
conform to all applicable design parameters.
9. Train moves should be observed as instructed by the railroad to assure that the system is capable of operating with full approach track circuits.
Special tests for switches, if required, shall be made according to
manufacturer's and railroad's instructions.
10. Operation of highway traffic signal interconnection, if provided, shall be checked to assure that it conforms to all applicable design parameters.
11. If redundant devices are installed, all checks and tests shall be performed on both normal and standby units. Correct operation of transfer unit, if
provided, shall be checked.
12. In signaled territory, all applicable tests shall be performed to verify correct operation of the signal system.
13. Results of inspections and tests herein required and all other inspections and tests shall be recorded, as instructed by the railroad.
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