1. The electrical bridge is plugged through the hole of the wall plate
1) Scope of application: closed bus bar, bridge, cable, trunking, and fireproof blocking through the wall.
2) Large sample drawing
3) Physical drawing
4) Core process
(1) At the hole where the cable passes through the shaft, wall, floor or enters the electrical panel and cabinet, it should be densely sealed with fireproof plugging material according to the design requirements.
(2) Process flow: reserved holes - bus installation - distribution box positioning and installation - piping - cable laying - grounding - waterproof steps - fireproof plugging.
(3) Operating conditions: the construction of the ground wall of the electric well is completed, and the installation of the electric well door is completed.
(4) The plugging should be strict and reliable, there should be no obvious cracks and visible pores, and the refractory lining should be added for those with larger holes.
(5) Installation requirements:
(1) The positioning and arrangement are reasonable, which is convenient for installation and maintenance.
(2) The selection of fireproof materials is correct (fireproof asbestos board, fireproof bag, fireproof mud, fireproof cotton)
(3) THE FIREPROOF BAG SHOULD BE PLACED NEATLY IN ORDER, THE GAP BETWEEN THE FIREPROOF BAG AND THE CABLE IS NOT MORE THAN 1CM2, AND THE THICKNESS OF THE FIRE BAG IS NOT LESS THAN 24CM.
(4) The voids in and around the metal trunking should be tightly sealed and complete inside and outside.
(6) Process the cover plate with square shape, suitable and consistent size, and uniform paint.
2. Fireproof plugging at the electrical well bridge and cable through the floor
1) Scope of application: fireproof plugging at the floor slab of the closed bus, bridge, cable and trunking of the electrical well.
2) Physical drawing
3) Process points
(1) At the hole where the cable passes through the shaft, wall, floor or enters the electrical panel and cabinet, it should be densely sealed with fireproof plugging material according to the design requirements.
(2) The electric well shall be set with a threshold, and the bridge and plug-in bus shall have a water retaining platform of not less than 50mm on the ground or through the floor slab.
(3) 20~30mm fireproof plugging should be done at the place where the bridge and plug-in bus pass through the floor slab, and a fireproof supporting plate should be set at the top.
(4) The plugging should be strict and reliable, there should be no obvious cracks and visible pores, and the refractory lining should be added for those with larger holes.
(5) Installation requirements:
(1) The positioning and arrangement are reasonable, which is convenient for installation and maintenance.
(2) The selection of fireproof materials is correct (fireproof asbestos board, fireproof bag, fireproof mud, fireproof cotton)
(3) THE FIREPROOF BAG SHOULD BE PLACED NEATLY IN ORDER, THE GAP BETWEEN THE FIREPROOF BAG AND THE CABLE IS NOT MORE THAN 1CM2, AND THE THICKNESS OF THE FIRE BAG IS NOT LESS THAN 24CM.
(4) The voids in and around the metal trunking should be tightly sealed and complete inside and outside.
(6) Process the cover plate with square shape, suitable and consistent size, and uniform paint.
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