Electrical Technology Daily Question 2018.11.18
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This post was last edited by sdscj0122 on 2018-11-18 at 13:24. The regulations regarding the sealing of cable openings inside and outside production facilities for the Electrical Safety Procedures examination (substation specialty) are as follows: ( ). A. Cables inside and outside the production plant, as well as those passing through cable openings in control rooms, cable trays, control cabinets, switchgear, etc., must be tightly sealed with firewalls. B. Cables inside and outside the production facility, as well as those passing through cable openings in areas such as control rooms, cable trays, control cabinets, and switchgear, must be tightly sealed with fire-resistant materials. C. Cables inside and outside the production plant, as well as those passing through cable openings in control rooms, cable trays, control cabinets, switchgear, etc., must be tightly sealed with specialized materials.
The regulation regarding the sealing of cable openings inside and outside the production facility is (B). A. Cables inside and outside the production plant, as well as those passing through cable openings in control rooms, cable trays, control cabinets, switchgear, etc., must be tightly sealed with firewalls. B. Cables inside and outside the production facility, as well as those passing through cable openings in areas such as control rooms, cable trays, control cabinets, and switchgear, must be tightly sealed with fire-resistant materials. C. Cables inside and outside the production plant, as well as those passing through cable openings in control rooms, cable trays, control cabinets, switchgear, etc., must be tightly sealed with specialized materials.
B. Cables inside and outside the production facility, as well as those passing through cable openings in areas such as control rooms, cable trays, control cabinets, and switchgear, must be tightly sealed with fire-resistant materials.
B. Cables inside and outside the production facility, as well as those passing through cable openings in areas such as control rooms, cable trays, control cabinets, and switchgear, must be tightly sealed with fire-resistant materials.