What is used to block the strong and weak wells?

Strong and weak wells use fireproof mud, fireproof bags and other fireproof plugging materials.

Fireproofing materials include: organic fireproof materials, inorganic fireproof materials and fireproof bags. Organic fireproof plugging material is made of organic synthetic resin as adhesive, flame retardant and filler by rolling.

The plugging material does not solidify for a long time, has good plasticity and can be plugged at will. This kind of plugging material is mainly used in the fire-proof plugging project of building pipelines and wire and cable through holes, and is used in conjunction with inorganic fire-proof plugging materials and fire-proof bags.

Extended data

Electric wells are divided into strong electricity and weak electricity. Strong electricity is lighting and electricity, and weak electricity is mainly low-voltage parts such as communication, monitoring and data. The electrical well is a space that runs vertically through the building and is used for the vertical laying of strong and weak cables. After reaching each floor, cover it with one floor. According to the fire protection code, each layer or interlayer of the electric well is closed.

The actual distinction between strong current and weak current is mainly based on the working voltage and current (the above two points determine the strength of the electromagnetic field attached to the transmission line), not directly divided by 36V (for example, the telephone line voltage can reach 1 10V, but because the working current is very small, it will not generate a strong electric field and will not interfere with the signal lines of other systems, so it is regarded as a weak current system).

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