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2. Firewall (construction) - Wikipedia

   en.wikipedia.org/wiki/Firewall_(construction)

   Substation transformer firewalls are typically free-standing modular walls custom designed and engineered to meet application needs. Building fire walls typically extend through the roof and terminate at a code-determined height above it. They are usually finished off on the top with flashing (sheet metal cap) for protection against the elements.

3. Sprayed in place pipe - Wikipedia

   en.wikipedia.org/wiki/Sprayed_in_place_pipe

   Sprayed in place pipe (SIPP) technologies is a trench-less rehabilitation method used to repair existing pipelines, that involves a robotic lining system that develops and manufactures proprietary lining polymeric. SIPP is a jointless, seamless, pipe with in a pipe with the capability to rehabilitate pipes ranging in diameter of .1 to 2.8 ...

4. Cured-in-place pipe - Wikipedia

   en.wikipedia.org/wiki/Cured-in-place_pipe

   The process of CIPP involves inserting and running a felt lining into a preexisting pipe that is the subject of repair. Resin within the liner is then exposed to a curing element to harden it and make it attach to the inner walls of the pipe. Once fully cured, the lining now acts as a new pipeline.

5. Fire blocking - Wikipedia

   en.wikipedia.org/wiki/Fire_blocking

   Fire blocking or firestopping is a system of supplemental components in a wood-framed wall or ceiling, which prevents the rapid propagation of fire within a combustible framing cavity to other areas. Description and function

6. Drain-waste-vent system - Wikipedia

   en.wikipedia.org/wiki/Drain-waste-vent_system

   A sewer pipe is normally at neutral air pressure compared to the surrounding atmosphere.When a column of waste water flows through a pipe, it compresses air ahead of it in the system, creating a positive pressure that must be released so it does not push back on the waste stream and downstream traps, slow drainage, and induce potential clogs.

7. Pipe recovery operations - Wikipedia

   en.wikipedia.org/wiki/Pipe_recovery_operations

   Pipe Stretch Free Point Estimate. The pipe stretch free point estimate is a good starting point for identifying the free point. Pull the drillstring to the pipe's neutral weight, which is the combined weight of blocks and the weight of the drill string and make a mark(X 1)(in) at the top of the rotary table.