Embedding cables in the wall can be a more cost-effective and aesthetically pleasing option, as it eliminates the need for visible conduit pipes. However, using conduit pipes provides easier access for future maintenance or upgrades, and it also offers better protection for the cables from potential damage. Ultimately, the decision should be based on the specific needs of the project, the local building codes, and the long-term maintenance considerations. **

One common protective conduit for underground cables is high-density polyethylene (HDPE) conduit. HDPE conduit is durable, flexible, and resistant to corrosion, making it ideal for protecting cables from environmental elements and physical damage. It also provides a smooth surface that reduces friction during cable installation, helping to extend the lifespan of the cables. Additionally, HDPE conduit is available in various sizes to accommodate different cable configurations and is often used in utility, telecommunications, and industrial applications. **

To seal an empty conduit, you can use a variety of methods such as using a conduit cap or plug to cover the opening. Another option is to use a sealant or caulk to fill the conduit opening and create a watertight seal. Additionally, you can use a threaded adapter and a threaded plug to securely close off the conduit. It's important to ensure that the sealing method used is appropriate for the specific type of conduit and the environmental conditions it will be exposed to. **

To determine if the conduit for the satellite cable is blocked, you can visually inspect the pathway to see if there are any obstructions such as debris, bends, or damage. You can also try running a cable through the conduit to check for any resistance or blockages. If the cable does not move smoothly through the conduit, it is likely blocked and will need to be cleared to ensure proper signal transmission. **

The designation for an aluminum conduit is typically "AL" or "AC" followed by a number indicating the size of the conduit. For example, a 1/2 inch aluminum conduit may be designated as "AL-1/2" or "AC-1/2". This designation helps to identify the material and size of the conduit for installation and maintenance purposes. **

3PE is a type of conduit that is suitable for use at 400V. It is a high-density polyethylene (HDPE) conduit with three layers of protection: an inner layer of adhesive, a middle layer of polyethylene, and an outer layer of polyethylene. This type of conduit is designed to provide excellent protection against corrosion, abrasion, and chemical damage, making it suitable for use in high voltage applications such as 400V. **

Without more specific information, it is difficult to determine if the continuous wire is stuck in the conduit. If the wire is not moving freely within the conduit and is unable to be pulled out, it may be stuck. However, if the wire is able to move freely within the conduit, it is likely not stuck. It is important to assess the situation carefully and consider the potential causes of the wire being stuck, such as obstructions or damage to the conduit. **

The suitable conduit for Duplex Cat 7a cable is typically a large-diameter conduit that can accommodate the size and thickness of the cable. Since Duplex Cat 7a cable is thicker and heavier than standard Ethernet cables, it requires a conduit with ample space to prevent damage to the cable during installation and to ensure proper performance. Additionally, the conduit should provide protection against environmental factors such as moisture, heat, and physical damage to maintain the integrity of the cable. It is important to consult with a professional to determine the specific conduit requirements for Duplex Cat 7a installation. **