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SAFETY

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Electromagnetic Compatibility (EMC)

The size of the surrounding area to be considered will depend on the structure of the building and other activities that are taking place. The surrounding area may extend beyond the boundaries of the premises.

Methods of Reducing Emissions

Mains Supply

Welding equipment should be connected to the mains supply according to the manufacturer’s recommenda- tions. If interference occurs, it may be necessary to take additional precautions such as filtering of the mains supply. Consideration should be given to shielding the supply cable of permanently installed welding equip- ment, in metallic conduit or equivalent. Shielding should be electrically continuous throughout its length. The shielding should be connected to the welding power source so that good electrical contact is maintained between the conduit and the welding power source enclosure.

Maintenance of the Welding Equipment

The welding equipment should be routinely maintained according to the manufacturer’s recommendations. All access and service doors and covers should be closed and properly fastened when the welding equip- ment is in operation. The welding equipment should not be modified in any way except for those changes and adjustments covered in the manufacturers instructions. In particular, the spark gaps of arc striking and stabilizing devices should be adjusted and maintained according to the manufacturer’s recommendations.

Welding Cables

The welding cables should be kept as short as possible and should be positioned close together, running at or close to floor level.

Equipotential Bonding

Bonding of all metallic components in the welding installation and adjacent to it should be considered. However, metallic components bonded to the work piece will increase the risk that the operator could receive a shock by touching these metallic components and the electrode at the same time. The operator should be insulated from all such bonded metallic components.

Earthing of the Workpiece

Where the workpiece is not bonded to earth for electrical safety, not connected to earth because of its size and position, e.g., ships hull or building steelwork, a connection bonding the workpiece to earth may reduce emissions in some, but not all instances. Care should be taken to prevent the earthing of the workpiece increasing the risk of injury to users, or damage to other electrical equipment. Where necessary, the connec- tion of the workpiece to earth should be made by a direct connection to the workpiece, but in some countries where direct connection is not permitted, the bonding should be achieved by suitable capacitance, selected according to national regulations.

Screening and Shielding

Selective screening and shielding of other cables and equipment in the surrounding area may alleviate prob- lems of interference. Screening of the entire welding installation may be considered for special applications. 1

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1Portions of the preceding text are contained in EN 60974-10: “Electromagnetic Compatibility (EMC) prod- uct standard for arc welding equipment.”

L10093 3-1-96H

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Lincoln Electric IM917-A manual Safety
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IM917-A specifications

The Lincoln Electric IM917-A is a highly advanced welding machine that caters to the needs of industrial and commercial applications. Designed for both expert welders and those new to the craft, this machine offers a rich combination of features and technologies that enhance performance and usability.

One of the standout features of the IM917-A is its robust inverter technology. This innovation allows the machine to provide consistent arc stability and improved control, even at low amperages. This means welders can achieve precision results in various materials, including carbon steel, stainless steel, and aluminum, without the risk of burn-through or warping. Additionally, the inverter design contributes to the IM917-A’s lightweight profile, making it portable and easy to transport to job sites.

The IM917-A employs advanced digital control systems that allow for precise adjustments and monitoring. Welders can access various pre-set programs tailored for different welding processes, significantly speeding up setup times. The intuitive user interface ensures that operators can quickly navigate through settings, achieving optimal parameters for each specific task. This ease of use makes the IM917-A accessible to less experienced welders while meeting the demands of seasoned professionals.

Another noteworthy characteristic of the IM917-A is its versatility. It supports multiple welding processes, including MIG, TIG, Stick, and flux-cored welding. This multi-process capability makes it an ideal machine for workshops looking to maximize their productivity without investing in multiple units. The ability to switch between these processes seamlessly allows users to adapt to various project requirements swiftly.

Safety is prioritized in the design of the IM917-A. It is equipped with features such as over-temperature protection and automatic shutoff, ensuring safe operation during prolonged use. Additionally, its durable construction and high-quality components enhance its reliability and longevity, making it a wise investment for businesses.

In conclusion, the Lincoln Electric IM917-A is a formidable choice for welders of all skill levels. Its combination of advanced inverter technology, user-friendly digital controls, versatile welding processes, and essential safety features sets it apart in the competitive welding equipment market. Whether for commercial, industrial, or even artistic applications, the IM917-A promises to deliver excellent performance and reliable results.
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