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How to choose a LED lighting fixture

Friday, 1 July 2016 PDF icon How to choose a LED lighting fixture
Nowadays many manufacturers of lighting fixtures offer one or more LED’s products. One of the main difference from the past is the quantity of technical features which customers must evaluate. Considering a lighting fixture with traditional light source, in order to describe lighting specifications, it is often enough knowing the absorbed power and the bright source.

Ventilation in classified areas

Friday, 1 July 2016 PDF icon Ventilation in classified areas
All the operators which daily work in plants know how much warm could interfere on the normal working development and how heavier is the right management of the whole activities. When we talk about plants installed in classified areas, that are in places with potentially explosive atmosphere, the ventilation, which provides a continuous air renewal, is really important to avoid the development of clouds which could be triggered by a spark or by an equipment over-temperature.

Drilling 'Ex d' junction boxes

Sunday, 1 May 2016 PDF icon Drilling 'Ex d' junction boxes
All the operations that might affect the certification of an Ex product must be done only by who owns the full conformity certificate for the product. However, there is a special case which commonly occurs on the market that does not follow this guideline: drilling of 'Ex d' junction boxes.

The importance of signs and colors

Tuesday, 1 March 2016 PDF icon The importance of signs and colors in industry and ex plant
Cortem Group, always careful about the evolution of new technologies, has designed the new EVL-60B and EVL-70B series floodlights with focused optics (typical angle 40°) and different colors suitable for different lighting needs. These colors may be used in plants with explosion hazard in order to give to operators a further element to recognize hazardous situations and to alert the security personnel in charge for the evacuation or for making safe a plant’s part affected by the unusual event. For example, these floodlights can be used to advise, through their lighting, a specific event and a no-go area. The aim of this dissertation is to highlight the several types of colors used in the engineering practice of a plant, with particular reference to the safety of electrical installations and machines hoping that our contribution could be an incentive for designers, in order to adopt all measures that can further enhance the concept of "Security" in the management and maintenance of plants in general and, particularly, in those at risk of explosion and/or fire.

OHSAS 18001 certification

Monday, 1 February 2016 PDF icon OHSAS 18001 certification
Almost every day the news report cases of accidents at work, very often fatal. These implicate ethical issues related to occupational safety and protection of life, that should be a priority in every Country, and costs for the society and for the companies. In particular, the industrial, petrochemical, construction and manufacturing sectors are, by their nature, those in which are recorded the highest percentage of accidents. To reduce the risks, companies of all sizes and in all sectors must implement management systems which ensure the health and safety of work places. Few years ago has been defined worldwide the OHSAS 18001 standard, suitable for all organizations wishing to establish formal procedures to manage the health and the safety threats in the company, implementing a control system and, above all, a continuous improvement, to ensure and increase the safety and health of workers.

Lighting systems in hazardous areas

Friday, 1 January 2016 PDF icon The lighting of tanks in hazardous areas
In the industrial plants coexist normally different lighting systems to meet specific system requirements. The lighting of field instrumentation, of external and internal tanks containing liquid and/or solids in dusty or granular state such as, for example, flour tanks. This type of lighting requires specific products as, those used for other types of lighting, are not sufficient. The distributed lighting systems use lighting fixtures placed at considerable heights (from 9 to 12 meters from the floor) that helps to illuminate evenly the area.

The plant normalization

Tuesday, 1 December 2015 PDF icon The plant normalization
In this treatment we will discuss the concepts and the guidelines adopted for the proper plant design, the electrical plant dimensioning and the related equipment selection. During the engineering construction and development stage, the electrical designer will be responsible to collect from all other disciplines, information on quantities, physical and orographic location of all electrical equipment to be powered and managed.

The new EN 60079-14 Standard

Sunday, 1 November 2015 PDF icon The new EN 60079-14 Standard: the correct use of cable gland
A few months ago was released the updated version of the European standard EN 60079-14 concerning the design, selection and installation of electrical systems for areas with potentially explosive atmosphere that has replaced the old version, which will remain in force until January, 1st 2017. What distinguishes the new legislation respect to the previous version has been the elimination of the scheme for the selection of entries in Ex enclosures.

The use of ferrous, non-ferrous and plastics materials

Thursday, 1 October 2015 PDF icon The use of ferrous, non-ferrous and plastics materials for the construction of electrical and electronic equipment, suitable for
In chemical, petrochemical, oil plants and, generally, in all types of industrial facilities which present a danger of explosion due to the presence of gas in the form of cloud or flammable dust, there are also harsh chemical substances that can be harmful and source of deterioration of electric and non-electric equipment. For these reasons, it’s necessary to pay great attention, during the plant design, to a correct selection of the types of materials, depending on the specific needs of the plant in which such equipment must operate.

Comparison between discharge and LED lighting fixtures

Tuesday, 1 September 2015 PDF icon Comparison between discharge and LED lighting fixtures
Discharge lamps have been considered for a long time, the best solution for lighting large areas, such as petrochemical plants or other buildings for industrial production. This is from the point of view of the relationship between the light output and the cost. The luminous efficiency of discharge lamps reaches and, in certain cases, exceeds 100 Lumen/ Watt, that is, with the same energy consumption, about 5-6 times the output of quartz-iodine lamps. Currently, with the technological improvement and the development of power components, LED lighting systems are gradually spreading into different environments, replacing the lighting fixtures with discharge lamps.

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