耐火母線槽與普通母線槽的等級(jí)區(qū)別
耐火封閉母線槽是指耐火等級(jí)高的由金屬板（鋼板或鋁板）為保護(hù)外殼、導(dǎo)電排、絕緣材料及有關(guān)附件組成的母線系統(tǒng)。
The fire-resistant enclosed busbar is a busbar system consisting of metal plates (steel plates or aluminum plates) with high fire resistance, which is composed of protective shell, conductive row, insulating materials and related accessories.
耐火母線槽與普通母線槽一樣，防護(hù)等級(jí)越高，防護(hù)效果就越好，如果是短時(shí)間少量的水分滴落到母線槽外殼上是沒(méi)有問(wèn)題的，如果把耐火母線槽直接在水里浸泡，密集型防護(hù)等級(jí)在IP54以上的還好點(diǎn)，空氣型的肯定不行。
Refractory bus slot with common busbar protection, the higher the level, the protective effect is better, if it is a short time a small amount of water onto the casing is no problem, if the refractory bus slot directly soaking in the water, intensive protection grade is better than IP54 in the air, certainly not.
1、必須驗(yàn)證母線槽干線相序正確，母線槽絕緣電阻不低于20MΩ
1. It is necessary to verify that the phase sequence of the main line of the busbar is correct, and the insulation resistance of the busbar slot is not less than 20M Omega.
2、保證母線槽干線不受液體、固體的侵入
2. Ensure that the main line of the busbar is not intruded by liquid and solid.
3、必須確認(rèn)安裝支架穩(wěn)固，連接螺栓可靠的連接
3. It is necessary to confirm the stability of the mounting bracket and the reliable connection of the connecting bolt
4、接觸帶電設(shè)備的零部件有危險(xiǎn)!
4. It is dangerous to contact the parts of the electrified equipment.
5、母線槽開(kāi)始送電時(shí)，不得帶負(fù)載
5. When the bus slot begins to send electricity, no load is carried.
6、檢查總的負(fù)載電流不超過(guò)主母線電流或設(shè)計(jì)電流
6, check the total load current does not exceed the bus current or current design
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