Clean laboratory electrical engineering installation

Clean laboratory electrical engineering installation

The electricity consumption of clean laboratory mainly includes lighting electricity, equipment electricity, air conditioning electricity, etc. Each laboratory has different functions and electricity consumption. To the kilowatt; each laboratory must have three-phase alternating current and single-phase alternating current,...

Text label: laboratory engineering, laboratory installation, clean laboratory electrical

Clean pharma machinery electrical engineering installation

The electricity consumption of clean laboratory mainly includes lighting electricity, equipment electricity, air conditioning electricity, etc. Each laboratory has different functions and electricity consumption. Up to kilowatts; each laboratory must have three-phase alternating current and single-phase alternating current, and it is best to set up a main power control switch, which is embedded in the wall on the side of the corridor. The indoor power supply should be able to be cut off when there are people in the room; a certain number of power sockets should be set up in each test bench, at least one three-phase socket and several single-phase sockets. These sockets should be equipped with switch control and insurance equipment to prevent short circuit. It will not affect the normal power supply of the whole room; the power supply of the pharma machinery must be set up with three-phase common power supply and one backup power supply, respectively, which are powered by two dedicated lines of substations to prevent voltage fluctuations.

electricity should be designed according to the layout of the laboratory and the location of the laboratory furniture. The conductors should be NH-BYJ wires and cables. Concealed in the leveling layer, where the electrical lines pass through the settlement joints or expansion joints of the building, compensation devices should be installed at both ends; the neutral and protective grounding busbars should be installed in the lighting distribution box, and the grounding in the box should not be used. The bolts are used as bus bars; the grounding or zero-connecting branch lines must be connected with the grounding or zero-connecting trunk lines separately, and must not be connected in series; the neutral line and protective grounding line busbars are respectively set in the lighting box, and the neutral line and the protective grounding line are distributed through the busbar. The two ends of the grounding place are fixed with a special grounding card to bridge the grounding wire, and the metal trunking is not used as the grounding conductor of the equipment. When there is no design requirement, the total length of the metal trunking shall not be less than 2 grounded or connected to the zero trunk connection; outdoor The nozzle of the conduit should be set in the box and box. For the nozzle in the floor-mounted distribution box, if there is no sealing plate at the bottom of the box, the nozzle should be 50-80mm higher than the base surface. It should be sealed; the bending radius of the cable conduit should not be less than the minimum allowable bending radius of the cable, and the minimum allowable bending radius of the cable should meet the specifications. Zhongjing Global Purification can provide consulting, planning, design, construction, installation, transformation and other supporting services for clean laboratories and clean rooms.

There should be a margin in the wire groove and no joints. The wires should be tied in sections according to the circuit number, and the spacing between the binding points should not be greater than 2m. The phase wire and neutral wire of the same circuit should be laid in the same metal wire groove; the same Lines without anti-interference requirements for different circuits of the power supply can be laid in the same trunking, and the lines with anti-interference requirements laid in the same trunking are isolated by partitions, or shielded wires with one end of the shielding sheath grounded; The wire and pipeline should be laid along the nearest line and reduce bending. The clear distance of the pipe buried in the wall or concrete from the surface should not be less than 15mm; It should be placed in the center of the casing. When welding, the welding joint should be fully welded and tightly welded. The tightening screw should be tightened. In the vibration place, the tightening screw should have anti-loosening measures. The nozzle enters the box and box, and the hidden piping can be welded and fixed on the edge of the box with the cross-ground wire. It is strictly forbidden to weld the nozzle and the knock-out hole. The nozzle exposed in the box and box should be less than 5mm. There are 2-4 threads that expose the lock nut. When the steel pipe is connected to the equipment, the steel pipe should be laid into the equipment. If it cannot be directly accessed, a waterproof elbow can be installed at the steel pipe and then covered with an insulating hose for protection in the dry room. The connection between the hose and the equipment should be a hose. The length of the joint connection should not exceed 1m, and the height of the nozzle of the steel pipe exposed to the ground should not be less than 200mm from the ground.

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