The obligation to provide technical and operational documentation for electrical installations and devices installed in a facility is regulated by regulations to the Energy Law and Construction Law. This obligation rests with the user operating electrical installations and devices. Each electrical device is made according to an appropriately prepared technical design, which contains a set of drawings, calculations and other necessary documents. The device is accompanied by Technical and Operational Documentation (DTR), specifying the general principles of its installation and operation.
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Documentation of projects, which includes electrical power engineering, is necessary to ensure high quality of electrical system execution, as well as its safety and efficiency. It is the basis for planning, designing, installing, testing, managing, operating and maintaining electrical devices and circuits. This is a document that is necessary for people with construction qualifications to perform independent technical functions.
What does the technical documentation of electrical installations and devices consist of?
Technical documentation of electrical installations and devices is a document that should include:
- technical design with subcontractor changes introduced,
- factory documentation provided by the device supplier, including in particular:
– technical and operational documentation (DTR),
– approvals, certificates, warranty cards, certificates and operating instructions,
– protocols qualifying for the appropriate fire and explosion hazard category.
DTR, or Technical and Operational Documentation, is a document attached to the device by its manufacturer. It contains all the data and instructions for its operation, including:
- characteristics (technical parameters) and registration data
- external drawing
- list of standard and special equipment
- kinematic, electrical and pneumatic diagrams
- functioning schemes
- user manual
- user manual
- maintenance and lubrication instructions
- health and safety instructions
- renovation standards
- list of spare parts (including cables and wires ),
- spare parts list
- list of actually owned equipment
- list of attached drawings
What is operational documentation during construction works?
The second core of the design documentation is the operational documentation, which governs the electrical engineering in a given building. It includes the following elements:
- operating instructions,
- documents confirming the acceptance of the device for operation (including, among others, a report on the tests, start-up and trial run),
- books and reports of device operation, taking into account any possible disruptions and damages to the extent indicated in the instructions,
- documents relating to the periodic inspections, reviews and maintenance and repair procedures specified in the instructions,
- protocols containing the results of tests and operational measurements,
- periodic inspection reports,
- construction object books.
It is essential that the operating documentation of electrical installations and devices is constantly updated. A designated employee who has the authority to do so, e.g. the electrical works manager, is responsible for its storage and supervision.
Operating instructions for electrical installations and devices
The Regulation of the Minister of Economy of 4 May 2007 on detailed conditions for the operation of the power system specifies the obligation to have operating instructions for the installation of electrical devices in each building and the authorization to store them. The document should include procedures and principles of operation of elements such as lighting or electrical equipment . What does a proper instruction contain?
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rules for connecting devices, installations and other networks to the network, - scope, principles and deadlines for carrying out periodic inspections and checks of the technical condition of the network and devices connected to it,
- rules of conduct in the event of threats to the continuity of electricity supply or a failure in the network,
- procedures for introducing interruptions and restrictions in the supply of electricity,
- the way network traffic is conducted,
- requirements for protection against electric shock, fire, explosion and other related to building safety.
The operating instructions for electrical equipment installations should be kept under the supervision of a designated employee who has the appropriate electrical construction qualifications and the ability to manage construction works.
Design documentation in electrical power works is not only documents required by law, but also a very important document containing experiences and dependencies that affect the correct installation of electrical devices and the safety of their use.
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