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1.3.4. Special Types of Hazard
• Power: All the high voltage equipment should be unplugged before opened. This is a huge life risk thus it has to be taken under
great care.
• Powder: Powder/air mixtures could be ignited by sparks. Sufcient ventilation is a must while using powder spraying equipment.
Powder, which is not swept from the oor creates risky environment.
• Static Charges: These could result in the following: Charges to people, electric shocks, sparks. Charging of objects has to be
avoided.
• Grounding: All electricity conducting parts and machinery in the workplace must be earthed 1.5 mt on either side and 2.5
mt around each booth opening. The grounding resistance must amount to a maximum of 1 MOhm resistance has to be tested
regularly. The appropriate devices must be kept in the workplace for regular grounding checks.
• Compressed Air: Compressed air could be created after long pauses of the equipment and this creates risk of pneumatic hose
damage or uncontrolled release and improper use of compressed air. Compressed air should be drained properly.
• Crushing and Cutting: There might be moving parts while operation (e.g. Conveyor Belt, Reciprocator). The operator must be
trained to maintain the area safety and local security regulations.
• Exceptional Circumstances: Local conditions must be met at all costs. Additional measures such as barriers can be used to
prevent unauthorized access.
• Conversions and Modications to the Equipment: All conversions and modications must be asked to Sistem Teknik prior to
the process and no process should be done without Sistem Teknik’s permission. This is essential for the equipment safety and
conformity. Powder coating equipment should never be used if damaged; these parts should be changed immediately with
the original Sistem Teknik replacement. Other replacements then Sistem Teknik original equipment does not conform the
guarantee, thus the guarantee will no longer be valid. Equipment repairs must be done only by specialist or at Sistem Teknik
veried shops.
1.3.5. Safety Requirements for Electrostatic Powder Coating
• All the equipment used for powder coating is dangerous unless the instructions are not conformed.
• Every electrostatic conductive part must be earthed within the 5 meter radius from the equipment.
• The oor of the coating area should conduct electricity (Concrete is generally a conductive surface, check with your building
project for more info)
• The users should wear electricity conducting footwear.
• The guns are earthed thus you must use them with your bear hands. If gloves are going to be used, make sure that they conduct
electricity.
• Grounding cable must be connected to the grounding screw of the electrostatic powder spraying hand appliance. It should
have a good connection with the booth, hopper and conveyor chain (if used).
• E-COAT Master Device must be switched off while the hand gun is being cleaned.
• The grounding must be checked every week. Remember that the grounding resistance must be 1 MOhm at a maximum.
• The E-COAT Master equipment should only be switched once the booth is working in proper conditions. If the booth malfunctions,
E-COAT should be turned off.
• At nozzle changes, the E-COAT Master device should be shut down.
• Only use spare parts / attachments and accessories from Sistem Teknik’s original parts page. This ensures the safety of the
equipment and conformity of use.
• Cleaning agents creates the risk of hazardous fumes. Please check the manufacturer’s manual about more information about
the cleaning agents if they are used in the site.
• If there is any damage on the powder coating equipment or the spray gun, operators should stop using it.
• Especially make sure that the environmental regulations and the manufacturer’s instructions are being conformed while
disposing the powder lacquer and cleaning agents.
• Repairs have to be carried out via specialists of Sistem Teknik trained personnel and never to be done in the operating area
under any circumstance.
• Dangerous dust concentration levels should be avoided in powder spraying areas. There must be sufcient technical ventilation
available (e.g. booth ventilation) to prevent a dust concentration of more than %50 of the lower explosion limit (UEG = max.
permissible powder/air concentration). If the UEG is not known then a value of 10g/m3 should be used.