NR12
Services

Reconstitution of Machinery and Equipment Instruction Manual

According to the requirements of NR 12, machines and equipment must have an instruction manual provided by the manufacturer or importer, with information related to safety in all phases of use. When nonexistent or lost, the manual of machines or equipment that present risks must be reconstituted by the employer, under the responsibility of a legally qualified professional.

We carry out a detailed technical survey to prepare instruction manuals for new machines or to reconstitute instruction manuals for machines and equipment that are already in operation.

All work is done by trained professionals, under the responsibility of a legally qualified professional, with the issuing of a Technical Term of Responsibility (ART).

Slip measurement of presses and similar parts

Annex I of NR 12 (Requirements for the use of optoelectronic presence detectors), determines that optoelectronic devices, such as light curtains and laser scanners, are installed at a safe distance from the dangerous zone.

The safety distance must be sufficient to ensure that the operator does not reach the danger point before the machine is stopped by the protective device.

This safety distance is calculated based on the machines stopping performance, the response time of the protection device, the additional distance (depth of penetration factor), and the assumed approach speed.

OUR SERVICES

We measure the stop time (slip or inertia measurement) of machines and equipment. The measurement is carried out with calibrated measuring equipment manufactured by the German company HHB Electronic GmbH.

After measuring stop times, we prepare a detailed technical report with the results obtained during measurement, as well as the calculation of the appropriate safety distance, according to the formula and criteria established in NBR ISO 13855.

LOTO lockout & tagout | PCEP
Hazardous Energy Control Program

LOTO stands for LockOut & TagOut, a safety tool that applies the blocking and signaling of dangerous energies in machinery and equipment.

Whenever it is necessary to carry out maintenance, lubrication, adjustments, part changes, or "setup" of machines or equipment, it is necessary that these are turned off (de-energized) and that the entire flow of materials in the pipes is interrupted. This is normally done by turning off the electrical power to the equipment and closing the valves.

However, this is not enough. A person who is not involved in the operation can activate a valve or button that releases energy, which can generate unexpected movement of machine components and endanger the life of the professional working on the equipment. LOTO is a set of procedures that prevent this from happening. In Brazil, it is also known as the Programa de Controle de Energias Perigosas (Dangerous Energy Control Program - PCEP).

We work in consulting and engineering services for the implementation of the LOTO or PCEP program, which consists of the following steps:

1. Initial diagnosis

We evaluate what already exists and align the expectations of what will be implemented:

• Procedures;
• Internal or corporate standards;
• Locking devices;
• Professionals who will perform the blocks.

2. Elaboration of procedures

We elaborate procedures and instructions necessary for the control of dangerous energies:

• General procedure based on NR 10, NR 12, and OSHA 29 (CFR1910.147). It is customized to meet the companys internal policies.
• Specific work instruction by machine: Elaboration of visual instructions for easy and quick interpretation by the professionals who will perform the blocks. The instructions include the identification of all types of energy and blocking points.

3. Trainings

After the development of the LOTO program, we provide training for professionals who will work to block dangerous energies.

The training lasts approximately 3 hours, with evaluation and certificate issuance at the end of the course.

We recommend that training be carried out only when all the resources for blocking dangerous energy sources are available for use.

4. Periodic audits

After the implementation of the LOTO or PCEP program, periodic audits are essential for the success of the programs continuity.

We prepared a checklist and a schedule to ensure the correct use and adequacy of procedures, work instructions, and locking devices. The first three audits are carried out jointly and in person, with one each month of the first post-deployment quarter.