Seaward B433R - Manual (Page 8)

Gener al Gui dance Notes
8
AS S E S S ME NT OF T E S T AR E A
Before installing the test equipment the user shall make an assessment of potential electromagnetic disturbance
problems in the surrounding area and take the following points into account -
• Supply cables (other than those supplying the test equipment), control cables, signalling and telephone
cables. These can be above, below or adjacent to the test equipment.
• Radio and television transmitters and receivers within a distance of 30 metres;
• Computer and other control equipment within a distance of 10 metres;
• Safety critical equipment (i.e. the guarding of industrial machinery);
• The health of people in the surrounding area. Of approximately 2-3 metres (that is the use hearing aids,
pacemakers, etc.);
• Delicate electronic equipment used for calibration or measurement.
The size of the surrounding area to be considered will depend on the overall structure of the building and other
activities taking place. It is important to note that the surrounding area may well extend beyond the boundaries of
the premises.
Position the equipment with adequate ventilation and easy access to all side of the equipment for maintenance
purposes. Generally this means not enclosing the equipment (unless specifically designed so) or burying it under
other test equipment.
S AF E AP P L I CAT I ON OF T E S T E QU I P ME NT
Any person operating electrical test equipment should be 18 years or over and should have had adequate training
in the use of the particular piece of equipment. The degree of training should be appropriate for the competence
and experience of the operator.
Position the test equipment in a clearly defined test area with access limited to the operator only. Construct all
test benches of insulated material, preferably wood. Use steel benches covered in insulating material under
certain circumstances only.
The item under test must be on an insulated surface (where possible, as with large or unwieldy items this may not
be possible).
DO NOT touch or come into contact with the instrument case or any other Earthed metalwork (for example conduit
or metal trunking, etc.) whilst applying the safety tests. The operator should also be on an insulated surface such
as British Standard approved rubber matting or nail free duckboard.
THE ITEM UNDER TEST MUST NOT BE TOUCHED WHILST THE FLASH TESTS ARE APPLIED
A supervisor should carry out the “Setting-up Procedure” before each shift to safeguard correct operation following
the instructions supplied.