In the process of using the bridge, the grounding methods are different according to the different installation occasions. Do you know what grounding methods are used respectively? Now we'll sort out the relevant contents for you.

在我們使用橋架的過程中，根據(jù)其安裝的場合不同，其采用的接地方式也是不一樣的，那么您知道分別采用的什么樣的接地方法嗎？

In the process of using the bridge, the grounding methods are different according to the different installation occasions. Do you know what grounding methods are used respectively?

橋架可能存在的安裝場合以及如何接地的情況有以下三種：

There are three possible installation occasions and grounding conditions of the bridge:

1、當(dāng)允許利用橋架系統(tǒng)構(gòu)成接地干線回路時(shí)，橋架端部之間連接電阻應(yīng)不大于0.00033歐姆 ，接地孔應(yīng)絕緣涂層。在1KV及以下中性點(diǎn)直接接地系統(tǒng)中，受電設(shè)備的接地與系統(tǒng)中性線接地相連。

1. When it is allowed to use the bridge system to form the grounding trunk circuit, the connection resistance between the ends of the bridge should not be greater than 0.00033 ohm, and the insulation coating should be removed from the grounding hole. In the 1kV and below neutral point direct grounding system, the grounding of the power receiving equipment is connected with the neutral line grounding of the system.

2、裝有處動切斷供電裝軒時(shí)，橋架的級長方向金屬橫截面積應(yīng)不小于規(guī)定值。沿橋架全長另敷設(shè)接地干線時(shí)，每段（包括非直線 段）橋架應(yīng)少有一點(diǎn)與接地干線可靠連接。

2. When installing the power cut-off device, the metal cross-sectional area in the level direction of the bridge should not be less than the specified value. When another grounding main line is laid along the whole length of the bridge, at least one point of each section (including non-linear section) of the bridge shall be reliably connected with the grounding main line.

3、對于振動場所，橋架不同的安裝場合的接地要點(diǎn)說明：在接地部位的連接處應(yīng)裝置彈簧圈。

3. For vibration sites, the key points of grounding for different installation sites of the bridge: spring rings should be installed at the connection of the grounding parts.

電纜橋架之間可利用連接板作為跨接線，把橋架連成一體。在連接板兩端的兩只連接螺栓上加鍍鋅彈簧墊圈，橋架之間用軟銅線進(jìn)行跨接，再將橋架與接地線相連，形成電氣通路。橋架整體與接地干線應(yīng)有不少于兩處的連接。接地作業(yè)完成后需要檢查驗(yàn)收。

Connecting plates can be used as jumpers between cable trays to connect the trays into one. Galvanized spring washers are added to the two connecting bolts at both ends of the connecting plate, and soft copper wires are used for bridging between the bridge, and then the bridge is connected with the grounding wire to form an electrical path. There shall be at least two connections between the whole bridge and the grounding main line. Inspection and acceptance are required after the completion of grounding operation.

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