How to design the lighting system of food purification workshop?

Key points of lighting system design for food purification workshop

It is in full compliance with SC certification, GMP and clean workshop specifications of food factories, focusing on: clean and easy to clean, waterproof, moisture-proof and mildew-proof, no dead corner of dust accumulation, safe and explosion-proof, and up-to-standard illumination.

A, lamps and lanterns selection principle (core)

Clean special lamps must be used.

Integrated clean LED purification lamp, flat and ceiling mounted.

Shell: stainless steel/plastic-sprayed aluminum shell, with smooth surface, no edges and corners and no dust accumulation.

Lampshade: high transparent acrylic or tempered glass, seamless, sealed and easy to wipe.

Waterproof, anti-fog and anti-corrosion grades

Frequent cleaning areas (cleaning room, curing room and cooking area): IP65 or above.

General clean area: at least IP54.

Acid and alkali resistance, corrosion resistance of disinfectant, no yellowing and no cracking.

Explosion protection and safety requirements

Areas with high dust, inflammable and explosive (flour, starch, alcohol and gas room):

LED explosion-proof clean lights must be used, which meet the explosion-proof certification.

Lamps and lanterns are grounded reliably, and lines are sealed through pipes.

Light source requirements

Color temperature: 4000 k ~ 5000 k (true white)

Close to natural light, easy to identify foreign bodies, hair and defects.

Color rendering index: Ra≥80, and high requirement area Ra≥90.

Can truly reflect the color of food, without color cast.

No stroboscopic and glare, protecting the vision of operators.

Low heat, without affecting the temperature, humidity and air conditioning load in the workshop.

Second, the illumination standard (food factory audit factory must check)

Strictly design the illumination according to the area, so as not to be "as bright as the whole field";

form

Description of regional illumination requirements (LX)

Raw material treatment and outer packaging ≥ 200 meet the basic operation.

General processing and turnover ≥ 300 routine operations

Impurities must be clearly seen in the key processes of inner packaging, picking, testing and filling ≥ 500.

Precision quality inspection, foreign body removal, and high-demand visual workstation with laboratory ≥ 750.

III. Installation Mode and Structural Design

Top-mounted surface mounted/concealed, and it is forbidden to hoist bare lamps.

Closely attached to the top surface of the color steel plate, seamless.

There should be no hooks, chains and exposed wires to avoid dust and floc.

Lamps and lanterns are arranged neatly and evenly.

Arrange along the direction of the production line to avoid forming shadows directly above the equipment.

Focus on strengthening the lighting above the equipment and above the operation desk.

All gaps are sealed.

Apply food-grade sealant to the joints between lamps and ceiling.

Prevent mosquitoes, dust and condensed water from entering the workshop.

Avoid glare caused by direct light.

Soft light treatment can only be added on the operating table.

In areas with many stainless steel equipment, the angle of lamps is slightly inclined to reduce reflection.

IV. Electrical and Circuit Design

All the lines shall wear galvanized steel pipes or clean conduits.

No open wires and trunking, no dust, easy to clean.

The junction box is built in the ceiling and sealed.

There is no exposed connector in the workshop.

Switch, distribution box

Waterproof and dustproof type, set in unclean area or buffer room.

Ordinary switch sockets are not installed in the clean area.

Emergency lighting and evacuation instructions

Emergency illumination ≥5 lx

Emergency lights and emergency exit lights are clean and sealed.

The safety exit shall be clearly marked, so as not to shelter evil people from evil practices.

Five, the special design of different functional areas

Clean filling/inner packaging workshop

Fully sealed purification lamp, IP65

No shadow, no glare, Ra≥90

Cleaning and disinfection area, cooking area

High temperature and high humidity, IP65 must be waterproof and fog-proof.

The shell is made of 304 stainless steel, which is corrosion-proof.

Baking, frying and high temperature zone

High temperature resistant LED, good heat dissipation.

Avoid lampshades from being deformed by heat and entering oil fume.

Cold storage/cold chain workshop

Low-temperature special LED purification lamp

Anti-freezing, anti-condensation, stable start-up

Six, health and maintenance points

The surface of lamps and lanterns is smooth and easy to wipe, and there can be no grooves, threads and holes.

No exposed cooling fins, no dust, hair and flying flocs.

Long service life and low maintenance, reducing the pollution caused by frequent climbing replacement.

Do not use lamps that will volatilize, fall off powder, age and peel off.

VII. Summary

Sufficient illumination, good color development, waterproof and explosion-proof, seamless sealing, no dust accumulation, easy cleaning, uniform arrangement and no shadow,

All use food factory dedicated purification LED lamps.