直流電纜和儀器用電纜資料翻譯-中英對照

DC AND INSTRUMENT CABLING

A.直流電纜必須符合BS6004 600/1000 V標(biāo)準(zhǔn)規(guī)定，或者批準(zhǔn)的類似等級電纜。電纜的最小橫截面積必須為10 mm2，動力送電電纜和監(jiān)控送電纜為2.5 mm2。電纜的絕緣材料采用高分子量聚乙烯(HMWPE)。可以考慮備用材料，包括聚偏氟乙烯(XLPE)和聚偏二氟乙烯(KYNAR)。DC cables shall conform to BS6004 600/1000V or approved equivalent grade cables. Minimum cross sectional area of the cables shall be 10 mm2 for power carrying cables and 2.5 mm2 for monitoring cables. Insulation for the cables shall be high molecular weight polyethylene (HMWPE). Alternate materials, which may be considered for approval, include XLPE and KYNAR.

B. 全部領(lǐng)域的正級和負(fù)級電纜必須標(biāo)有不同顏色。正的(陽極)電纜的顏色為紅色，負(fù)級電纜的顏色為黑色，采用單芯電纜(加固鋼)封套。參考電極和儀器的負(fù)級電纜應(yīng)該標(biāo)識有不同顏色，不得采用紅色或黑色。 推薦的顏色方案必須提交皇室委員會通過。Positive and negative cables shall be color-coded the same for all areas. Colors are RED for positive (anode) and BLACK for negative (reinforcement steel) in single core cables. Reference electrode and instrument negative cables shall have separate colors, not BLACK or RED. Proposed color scheme shall be submitted to the Royal Commission for approval.

C.，參考電極電纜連接裝置的鋪設(shè)參考元件必須采用低噪音的屏蔽電纜。The reference electrode cabling for connection to embedded reference elements shall be low noise screened cable.

1.導(dǎo)線采用7/0.2毫米的軟銅膠線，銅材編織物表面采用聚乙烯隔離。整體封套可以采用PVC材料。The conductor shall be 7/0.2-mm strand annealed copper, insulated with polyethylene over which shall be a layer of plain copper braiding. Overall sheathing shall be PVC.

2. 50°C溫度條件下的電容量少于103pF /米。電纜必須標(biāo)上不同顏色方便識別。The capacitance shall be less than 103pF/m at temperatures up to 50°C. Cables shall be color-coded for identification.

3.從分線盒到T/R電纜的參考電極必須設(shè)置在導(dǎo)管里內(nèi)，并且采用多核心屏蔽，多股類型電纜的最小橫剖面的為1.25 mm2。Reference electrode cabling from the junction box to T/R shall run in conduit and may be screened multi-core, multi-strand type of minimum cross section of 1.25 mm2 per core.

D.所有電纜的終端必須卷邊，并適于安置在分線盒里。全部電纜和導(dǎo)線必須使用標(biāo)簽在25毫米的每個末端做好標(biāo)識其用途。電纜的標(biāo)識必須在圖紙中注明，那些應(yīng)該使用。不允許使用黏性標(biāo)識。All cables shall be terminated by crimped connectors suitable for the terminals provided in the junction boxes. All cables and wiring shall be appropriately identified within 25 mm of each end using permanent wire markers intended for the purpose. Where cable identifications have been given in the drawings, these shall be used. Adhesive type markers are not acceptable.

2.7分線盒JUNCTION BOXES

A.分線盒采用玻璃纖維加強(qiáng)聚酯或者類似材料制成，相關(guān)IP等級，符合附錄D,BS 4752 指定的要求，室內(nèi)最小水平將為1P55，戶外為IP66，適合位置為戶外，海上或者沿海暴露位置，1P 65不以海上或者沿海暴露位置IP 67為條件，申請為分線盒處于預(yù)期浸泡的條件下。Junction boxes shall be constructed from fiberglass-reinforced polyester or equivalent to comply with the relevant IP rating for the location as specified in BS 4752, Appendix D. Minimum levels shall be 1P55 for indoor use, IP66 for outdoor locations subject to marine or coastal exposure and 1P65 for outdoor locations not subject to marine or coastal exposure IP 67 shall be applied for those boxes anticipated to be submerged.

B.所有的門必須安裝襯墊，鎖具并且要求堅實可靠。全部鎖具可以使用同一把鑰匙開啟。電纜入口處必須采用合適的封蓋或密封導(dǎo)管。必須小心電纜入口處的裝置不得影響分線盒的IP等級。All doors shall be gasketed, lockable and stiffened. All locks shall be capable of being opened with the same key. Cable entry shall be through suitable compression gland or in sealed conduits. Appropriate precaution shall be taken to ensure that the cable entry system in no way compromises the junction box IP rating.

C.終端必須標(biāo)識有區(qū)域/附屬區(qū)域標(biāo)記，組件的型號和數(shù)目必須適合，同時也必須標(biāo)識有相應(yīng)各個特別裝置的標(biāo)記以便識別。控制面板的典型的控制布局必須在圖紙中標(biāo)識出來。所有終端必須清楚標(biāo)識其正確的功能，使用白色字體，采用黑色背景材料。材料可采用銘刻標(biāo)簽或同類產(chǎn)品。The terminals shall be clearly marked with the zone/sub-zone, component type and number as appropriate and shall also be marked with suitable identification corresponding to each particular unit. The typical control layout for the control panel shall be shown in the drawings. All terminals shall be clearly labeled with their correct function, using white engraved background on black surface. Material shall be traffolyte or equivalent.

D.電纜連接裝置必須采用德國工業(yè)標(biāo)準(zhǔn)（DIN）安裝終端護(hù)欄。每個終端只允許有一根導(dǎo)線。電路的擴(kuò)容必須采用標(biāo)準(zhǔn)的橋接帶、滾桶和螺釘。Cable connectors shall be DIN rail mounted terminals. Only one conductor per terminal shall be permitted. Circuit expansion shall be achieved by standard bridging strips, barrels, and screws.

E.分線盒內(nèi)的終端/面板的布局必須在詳細(xì)圖紙中標(biāo)明。提議的詳細(xì)布局必須在工程試運(yùn)行之前提交皇室委員會批準(zhǔn)。Layout of terminals/panels within the junction boxes shall be shown in the detail drawings. The proposed layout details shall be submitted to the Royal Commission for approval prior to commencement of work.

F.分線盒必須采用剛硬固定在適當(dāng)?shù)奈恢�。The junction box shall be securely and rigidly fastened in place.

G.分線盒必須接地。The junction boxes shall be grounded.

部分3 – 執(zhí)行PART 3 - EXECUTION

3.1 準(zhǔn)備PREPARATION

A.電氣連接：鋼筋組架和所有的外部安裝鋼體結(jié)構(gòu)，以及鋼筋不同的部分之間，必須對其連接部分進(jìn)行檢查。承包商有責(zé)任確保，全部鋼材的加固層、包括連接部位、拉桿鞍作,等等，以及任何其它受保護(hù)的嵌入金屬固定設(shè)備結(jié)構(gòu)，都采用電力連接。 至少，混凝土表面面積每100 m2處必須檢查連接性。如果裝置存在不連續(xù)性，安裝第3.2 部分.B的規(guī)定，提供電氣連接。 除非在設(shè)計中，明確有其它的替換測試程序和標(biāo)準(zhǔn)，在混凝土里的鋼筋或者組件之間的電氣連接必須通過直流電（D.C.）反面極性電阻測量技術(shù)測試。 這種技術(shù)可以使用一臺直流電電阻儀器測量并且對比電阻，然后反轉(zhuǎn)試驗引入線的極性。 另一種技術(shù)是直流電（D.C.）電位差測量技術(shù)。這種測試的驗收標(biāo)準(zhǔn)為電阻小于1歐姆或者電位差小于1 mV并且數(shù)值保持穩(wěn)定。 全部鋼材的連接必須經(jīng)過測試，包括任何無法進(jìn)行測試的棒材或者組件，必須保證其長期的電阻小于1歐姆。Electrical Continuity: Perform continuity survey between the elements of the reinforcement cage and all externally mounted steelwork and between different sections of reinforcement steel. The contractor shall be responsible for ensuring that all the steel reinforcement layers, including links, tie bar saddles, etc. and any other embedded metallic fixtures within the structure to be protected are electrically continuous. At a minimum, two locations per 100 m2 of concrete surface area shall be checked for continuity. If discontinuity exists, provide electrical continuity per Section 3.2.B. Unless alternative testing procedures and criteria have been selected in the design, the electrical continuity between reinforcing steel or elements of steel in concrete shall be tested by D.C. reverse polarity resistance measurement technique. This technique measures and compares the resistance using a D.C. resistance instrument and then reversing the polarity of the test leads. Another technique may be the D.C. potential difference measurement technique. The acceptance criteria for such testing shall be a resistance of less than I ohm or a potential difference of less than 1 mV and the value stable. All steel shall be continuity tested, and any bar or component