Among all the improvements and benefits that NR 10 – SAFETY IN ELECTRICITY FACILITIES AND SERVICES brought to professionals in the area of electricity, one of the ones that I consider most relevant is the introduction in the work environment of the Electrical Installation Record (PIE).
The Electrical Installations Record is an organized system of information pertaining to electrical installations and workers that will summarize the set of procedures, actions, documentation, and programs that the company maintains or plans to carry out to protect the worker from electrical risks.
The main objectives of the PIE are:
- Provide the worker with all the information necessary for his safety.
- Proving to the MTE that it meets the requirements of NR10.
- Prove that all services are performed according to defined and safe procedures.
See what the standard says:
10.2.3 Companies are obliged to maintain updated single-line schemes of the electrical installations of their establishments with the specifications of the grounding system and other equipment and protective devices.
This is the first point of the standard that deals with documentation and deals with any company regardless of its installed power. The single-line diagram is a powerful tool for the electricity professional and is the map of the electrical installation, having an updated single-line diagram is a matter of security and a time gain in any intervention of the electrical installation, showing voltage data from the outlet points, frames cables and electrical cable routing.
Medical record of companies with installed power above 75KW.
For companies with installed power greater than 75KW in addition to the single-line diagram, additional documents are required.
10.2.4 Establishments with an installed load greater than 75 kW must constitute and maintain the Electrical Installation Record, containing, in addition to the provisions of sub-item 10.2.3, at least:
a) set of health and technical and administrative procedures and instructions, implemented and related to this NR and description of the existing control measures;
All of the documents described in this paragraph are common documents of SESMS (Specialized Service in Safety Engineering and Occupational Medicine), which facilitates the composition of the PIE since they are documents already used by a company.
b) documentation of inspections and measurements of the lightning protection system and electrical grounds;
Reports on adequate SPDA and grounding systems that must comply with current regulations.
c) specification of collective and individual protection equipment and tools, applicable as determined by this NR;
All PPE’s (personal protective equipment) and EPC’s (collective protective equipment) must be regulated by the MTE (Ministry of Labor and Employment) and must have a CA (authorization certificate). CAs must be active in the MTE to ensure functionality and adequate protection for activities.
d) supporting documentation of the qualification, qualification, qualification, authorization of the workers and the training carried out;
The certification documents of each worker authorized to interact in the electrical installation will also be an essential part of the PIE, both in terms of professional qualification and the updated certificates of NR10 training.
e) results of electrical insulation tests performed on individual and collective protection equipment;
For all tools and PPE’s and EPC’s for energized work it is essential that the presentation of the insulation test is required when provided by the company, it is obliged to provide the test. This same criterion applies to the calibration of measuring equipment with a gas detector and electrical testing devices.
f) certifications of electrical equipment and materials in classified areas;
Classified areas are places with the potential for an explosive atmosphere to occur and in these places all equipment and power tools must be developed in such a way as not to spread flames or start a fire. For these environments, tools, materials and equipment must be intrinsically safe and all test certificates of these must be filed together with the PIE.
g) technical report of the updated inspections with recommendations, schedules of adjustments, including the items of “a” af “.
For companies with old installations that are still undergoing the process of adaptation to the NR10 standard, terms and adequacy plans are stipulated, which must be provided for in inspection reports and all must be part of the PIE.
Recommended documents to be included in the PIE:
- Technical instruction: Task planning – base and field;
- APR (preliminary risk analysis);
- Temporary grounding;
- Worksite signage;
- Technical Report – SPDA;
- CA report;
- Descriptive authorization form for works in the building;
- Equipment conformity certificates;
- Emergency response plans (PASE’s)
- Safety steps chart “Step by step”.
I emphasize that no documents contained in the PIE are restricted to any employee of the company and the company is obliged to present these documents when requested by employees.