WAGNER VU 1 - Page 63

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VERSION 03/2020 ORDER NUMBER DOC2330732
VU 1/VU 2/VU 3
Section Type of inspection Requirements Inspection by Type of inspection Inspection
interval
4 Eectiveness of grounding All the system's conductive
elements, such as oors, walls, ceilings, protective grating, transport equipment, work pieces, powder tanks, machines or construction parts etc. in the spray area, with the exception of parts which carry high voltage during operation, must be connected to the grounding system. The resistance of the oor must not exceed 10
8
ohms.
SP VI/ME/CM
Visual check of ground connections, perform function test on grounding switch, measurement of grounding resistors.
weekly
5 Ground leaking resistance
from the work piece attachment point
The ground leaking resistance from the attachment point on each work piece must not exceed 1 megaohm (measuring voltage must be between 500 and 1000 V). The form of construction of the work piece mount must guarantee that the work pieces remain grounded during coating.
SP ME/CM
Measure resistance to ground (work piece receiver - ground potential) max. 1 megohm @ 1000 V.
weekly
6 Further inspections Further inspections may be required
depending on the model and functions of the booth (see EN 12981).
as per the booth manufacturer's instructions
as per the booth manufacturer's instructions
as per the booth manufacturer's instructions
Legend: MF = Manufacturer FT = Function test ER = Employer ME = Measurement SP = Skilled person OC = Organization check FPO = Fire prevention ocer VI = Visual inspection ELT = Electrician CM = Constant monitoring TP = Trained person TT = Technical testing