Do you want to use fireproof mud for fire in the electrical cabinet? Is there any national standard?
There is no national standards, but the general works of the Party and the supervision unit for the aesthetic requirements of the fire with the mud to block the construction caused by the construction of empty. The material is mainly used for wire, cable hole blockage to prevent the wire, the cable fire and spread from the hole to the adjacent room to reduce the loss of fire. To avoid the expansion of the accident with smoke, fire, dust and other functions. Therefore, the block material is widely used in power plants, industrial and mining enterprises, high-rise buildings, shipbuilding power, telecommunications, substations, metallurgy and other systems in the vertical level of the wire, cable through the hole block.
It is simpler, that is, a shelf-like shelf with a lot of terminals These terminals can be easily plugged into various parts The terminals and parts of the terminal meet some common protocols and can be compatible with each other Hub function similar to the distribution box, but it is the allocation of information, not electricity, more is to do the data channel terminal interface I do not know if it is clear View original post & gt; & gt;
6p is the usual telephone line connector 4p is the telephone handset cable connector
What you say should be the voice part of the integrated cabling system
