The installation of the bus duct
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The installation of the bus duct
時(shí)間:22-10-14
| Insert box and its installation: 1. The shell of the socket is anticorrosive steel, and the surface is sprayed with epoxy resin electrostatic powder, so that it can be used in the corrosive environment. 2, the socket box adopts the circuit breaker type, the circuit breaker is operated in the socket box, and the protective plate must be installed in the box so as to avoid the electric shock during the use of the circuit breaker. 3. The door of the socket should have a interlocking device to prevent it from opening the valve in the charged state and causing unnecessary loss. 4. The lock foot of the socket should have interlocking function to ensure that the socket can be completely inserted in the rear. 5. When the case of the socket is PE, a special PE row is built in the socket to ensure the ability of grounding short circuit. 6, before the installation of busbar slot box, we must open the safety baffle at the slot of the busbar slot. We should first push the switch inside the box to the position of the OFF disconnection, insert the socket pin into the busbar slot from the bus slot socket according to the phase sequence, and ensure that the insertion is in place. It is strictly prohibited to plug in the case of no power off, so as not to touch electricity. 8. After the installation of the box is completed, the two claw type chuck should be fixed to both sides of the busbar slot and tighten the screw tightly. The installation of the busbar and its bracket: 1. The reformed busbar groove must reach the 3C certification standard. The newly added socket should have a 3C certification mark and indicate its specific detection mark. 2. The surge voltage of the busbar slots must meet the requirements of the current national standards. The protection grade of the shell is not less than IP54. 3, the installation of busbar support must be required. When the busbar is laid horizontally, each unit busbar should not be less than two stents, and it should be reliable and fixed, and the support and busbar slot should be tightly connected. 4, when installing the bus slot body, the insulation resistance of each bus bar slot, phase to phase, phase zero and zero ground must be measured before installation, and the insulation resistance should not be less than 20M ohm. The bar slot in the horizontal installation should use the press plate to fix the busbar slot on the support of the busbar slot, and the fixed bolt should not be tighten. After installing one unit busbar, insulation resistance of busbar slot should be measured, allowing total insulation resistance to decrease gradually, but no sudden change is allowed, and the total insulation resistance should not be less than 0.5 M ohm. Between the box and the busbar should be reliable fixed on the busbar after building settlement joint and expansion joints should be soft connection unit configuration of busbar busbar, after installation should pass through walls and floor of the fire hole plugging. Two horizontally adjacent busbar grooves; the spacing of the support point should not be greater than 2.5m when the bar groove is laid horizontally. (for example, the large span high-strength bus grooves are laid in the workshop, the spacing can be greater than 6m.) When the busbar slot is installed on the support and hanger, the horizontal fixed pressure plate is fixed. The connection points of the busbar slot should not be in the wall, and there should be no sewage and sundries entering the busbar when the busbar slot is installed through the wall hole. After the whole connection of the busbar slot, the grounding resistance must be checked with the 1 Omega gear of the multimeter. The resistance value is less than O. 1 Omega to ensure ground requirements. The expansion (expansion) section should be set when the length of the busbar line is more than 60m. |
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