在清潔機箱機柜內部時，確實需要關閉電源。這是因為在通電狀態下進行清潔工作存在嚴重的安全隱患，可能導致觸電事故或設備損壞。

It is indeed necessary to turn off the power when cleaning the inside of the chassis cabinet. This is because cleaning work while powered on poses serious safety hazards, which may result in electric shock accidents or equipment damage.

具體來說，關閉電源的原因包括：

Specifically, the reasons for turning off the power include:

防止觸電：機箱機柜內部包含大量的電子元件和裸露的電線，如果在通電狀態下進行清潔，很容易發生觸電事故，對人身安全構成威脅。

Preventing electric shock: The interior of the chassis and cabinet contains a large number of electronic components and exposed wires. If cleaned while powered on, it is easy to cause electric shock accidents, posing a threat to personal safety.

避免設備損壞：在清潔過程中，如果不慎觸碰到電路板或其他敏感部件，可能會導致設備短路、損壞或數據丟失。關閉電源可以確保在清潔過程中不會對這些部件造成明顯影響。

Avoid equipment damage: During the cleaning process, accidental contact with circuit boards or other sensitive components may cause equipment short circuits, damage, or data loss. Turning off the power can ensure that there will be no impact on these components during the cleaning process.

此外，為了確保清潔工作的順利進行，還需要注意以下幾點：

In addition, to ensure the smooth progress of cleaning work, the following points need to be noted:

拔掉所有連接線：在關閉電源后，應拔掉機箱機柜的所有連接線，包括電源線、數據線等，以防止在清潔過程中意外觸碰到這些線路。

Unplug all connection cables: After turning off the power, all connection cables of the chassis and cabinet, including power cables, data cables, etc., should be unplugged to prevent accidental contact with these lines during the cleaning process.

準備合適的清潔工具：選擇軟毛刷、吸塵器（或壓縮空氣罐）、無塵布等合適的清潔工具，避免使用容易脫毛的筆刷或含有腐蝕性的清潔劑。

Prepare appropriate cleaning tools: choose a soft bristled brush, vacuum cleaner (or compressed air tank), dust-free cloth and other suitable cleaning tools, avoid using brushes that are prone to hair removal or cleaning agents that contain corrosive substances.

穿戴防護裝備：穿戴好防靜電服和手套，以防止靜電對設備造成損害。

Wear protective equipment: Wear anti-static clothing and gloves to prevent static electricity from damaging the equipment.

輕柔操作：在拆卸和安裝部件時，要輕柔操作，避免用力過猛導致部件損壞或連接松動。

Gentle operation: When disassembling and installing components, be gentle to avoid excessive force that may cause damage or loose connections.

綜上所述，清潔機箱機柜內部時建議關閉電源，并采取必要的安全措施，以確保清潔工作的順利進行和人身設備的安全。

In summary, when cleaning the interior of the chassis and cabinet, it is necessary to turn off the power and take necessary safety measures to ensure the smooth progress of the cleaning work and the safety of personnel and equipment.

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