When using intrinsically safe wires in explosion-proof areas, should these wires be protected with galvanized pipes? And should the cable trays used to carry the cables be fully sealed?
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When using intrinsically safe wires in explosion-proof areas, is it necessary to protect these wires with galvanized pipes? Should the cable trays used for laying the cables be fully sealed? Which standards specify this?
When using intrinsically safe wires in explosion-proof areas, in accordance with the **current regulations, namely the ‘Design Code for Industrial Enterprises’, protective measures should be taken in those sections where the exposed parts are prone to wear, corrosion, or stress, such as by using galvanized pipes. However, protective measures are not required in other areas that are not subject to wear, corrosion, or stress. As for whether the cable tray needs to be fully sealed, it depends on the specific circumstances. Generally speaking, if hazardous substances such as flammable gases are present in an explosion-proof area, and the cables or equipment in the cable tray may generate sparks or high temperatures, then the cable tray needs to be fully sealed in order to reduce the risk of fire or explosion. If such hazardous substances are not present in the environment, or if the cables or equipment in the cable tray do not generate sparks or high temperatures, then full sealing is not necessary. In summary, when using intrinsically safe wires and cable trays in explosion-proof areas, it is necessary to follow **specifications and standards, and implement appropriate protective measures based on the actual conditions. -
You’re really clueless; what does bridge frame sealing mean?
Sealing of cable trays is not a concern; the main focus is on fire prevention in explosive areas, which means that cable trays need to have fire-resistant coatings.