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1.4 Quality Guaranteed
1.4.1 General
®
The SLAM
TrafoEx–series is designed, certified, manufactured and tested under ISO 9001 quality
®
system as well as additional requirements of the Directive 2014/34/EU (ATEX). The SLAM
TrafoEx–
series is designed and tested according to the latest directives and standards. The referred directives
and standards of the production date in case are stated on the Declaration of Conformity which is
included in the delivery.
1.4.2 Individual testing reports
®
Each SLAM
–unit has its own individual serial number and is provided with an original, individual testing
report when leaving the factory. The year of manufacture is specified on the type label of the equipment.
®
Following tests have been done for SLAM
TrafoEx–units according to standards relating to portable
TrafoEx transformer for explosion hazardous area. The Declaration of Conformity is specifying the
relevant standards. The testing report included in the delivery specifies the results of the factory tests
for that particular unit. The testing report typically specifies the following tests:
PE –resistance test
The purpose of this test is to measure persistence of earth conductor.
Vital test for electrical safety as well as explosion safety because of e.g static electricity control.
The test current is 10A (current) and the overall resistance should not exceed 0,5 ohm.
Operation under load
Each of the sockets is tested with either 8A or 16A load. The output voltage has to be as specified for
the particular type of TrafoEx transformer
High voltage test (electrical strength)
The purpose of this test is to measure leakage current trough insulation. Vital test for revealing broken
components or similar failures which can not be identified visually. For TrafoEx transformer there are
three tests runned: Primary, Secondary and Primary agaist Secondary. Testing voltage applied is
2550VDC or 1500VAC. Maximum leakage current is 5mA.
Test of expected use of equipment
The TrafoEx transformer is subjected to shaking and vibration – to see that all the internal wires are
properly attached and components are not loose.
Operational test of TrafoEx transformer and accessories
The unit is plugged-in and checked that it is working properly after all accomplished tests above.
Visual inspection
A final check to see everything is fine (screws attached properly, wires connected and required markings
attached).
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