What Are The Safety Operation Requirements for Electrical Equipment When Using A Fume Hood?

The safety operation requirements for electrical equipment when using fume hoods are as follows:

Standard power supply usage:

It is strictly prohibited to place mobile power strips or wires inside fume hoods to prevent safety accidents such as short circuits and leakage caused by aging, damage or poor contact of wires.

Before the experiment, check whether all the power switches are in the on position and whether the power indicator light on the power control panel of the base cabinet is on to ensure that the electrical equipment is powered on normally.

After the experiment is completed, promptly turn off the power supply of the equipment inside the fume hood, and disconnect all water, electricity and gas switches. Unplug the power plug outside the hood to prevent the equipment from remaining in standby mode for a long time, which would waste energy and pose safety hazards.

Arrange electrical equipment reasonably:

When power supply equipment or instruments need to be used in the fume hood, such equipment should be grounded to reduce the possibility of sparks and prevent fire or electric shock accidents caused by static electricity or leakage.

The power cord should be pulled out from the air inlet at the bottom and connected to an external power socket. The power socket should also have complete and certified grounding facilities to ensure electrical safety.

When the height of the placed equipment exceeds 100mm, there should be an air flow channel under the equipment. Stainless steel brackets can be used to raise the equipment. Hollow or perforated brackets can reduce the interference with the air flow pattern and prevent the bottom of the equipment from overheating at the same time.

It is necessary to avoid placing too many devices and instruments in the fume hood. The total area of equipment or other devices in the fume hood should not exceed 50% of the countertop area to ensure smooth air circulation inside the fume hood and prevent the accumulation of harmful gases due to excessive equipment affecting the exhaust effect.

Pay attention to the coordination between electrical equipment and fume hoods:

When using an electric stove inside a fume hood, it is recommended to place an insulating board under the stove to prevent the heat generated by the stove from being directly transferred to the surface of the fume hood, which could damage the fume hood or cause a fire.

If the fume hood is close to the door or window, the door and window should be closed when using the fume hood. Fans and other devices must not be turned on near the fume hood. The interference of ambient air flow should be minimized as much as possible to ensure the normal operation of electrical equipment inside the fume hood and at the same time guarantee the exhaust effect of the fume hood.