Contractors scope of supply and services

In order to avoid conflicts the scope of supply and services has to be described in as much detail as possible. At first the scope of supply has to be determined. Here, the battery limits can be described, where it is sufficient to say that within these battery limits, the contractor has to supply everything necessary to ensure the proper operation of the plant. A battery limit often stipulated is Im in front of the building , i.e. the plant manufacturer has to supply everything included in this area. In addition, a listing in the form of a supply schedule may be integrated in the contract. For this purpose, the possibly amended supply schedule of the plant manufacturer s quotation can be used. 

A typical listing of the contractor s duties includes the following  

For a more precise stipulation of individual services, customers specifications can be used or listings of documentations to be prepared can be compiled. Apart from the usual documents that have to be provided anyway for the handling of the project, the listings may contain additional documents interesting for the operator. This appUes especially to the scope of the documentation. Examples for this are  

The drawing up of this verbal description entails considerable effort for the plant manufacturer. The same result is achievable by system engineering meetings or by the preparation of requirements specifications (see Chapter 4, section 4.5.3 Control engineering ). 

In case customers demand the description of double faults , for example, considerable additional expenses will arise. 

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