LINE HISTORY SHEET (LHS) - PIPING - [1]

LINE HISTORY SHEET (LHS)

Line History Sheet or LHS is the recording sheet made for keeping the records of the joints in a pipeline in a systematic manner. LHS gives tractability of joints in a pipeline. In LHS each process done on a joint is recorded with its process report number and date.

Creating and maintaining a LHS is one of the hectic task in a piping project. Proper and timely maintenance of LHS is necessary for the successful completion of a piping project. Another most important thing is that, in most of the projects billing/payments are obtained/done based on the stage of  completion of different process in a joint. For each process to be done on a pipe joint the record of previous process is needed, which can be easily done with the help of a LHS.

What are the records to be maintained in a LHS, how it is to be maintained,  the importance and requirement of maintaining each record and how these records can be used to manage a piping project is explained in this series of blog.

There are many ways to record the LHS. The most popularly used method is maintaining the records in a Microsoft Excel Format. There are other softwares available like Parascadd ( www.parascadd.com). Some organisations will use in-house developed software's.

Here things are explained with the assumption that the LHS is maintained in MS Excel.