GMW 5203, Руководство пользователя

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4. INSTALLATION
4.1
Site Considerations
The Model 5203 is not magnetically shielded. Ferro-magnetic material in the vicinity
of the magnet will modify the magnitude and uniformity of the central region
magnetic field. As a general rule avoid magnetic material closer than approximately 1
meter of the central region.
Background fields such as the geomagnetic field and alternating field from 60Hz power sources are
not shielded by the magnet and will add to the field produced by the magnet. If possible these
background fields should be measured and their effects evaluated before the Model 5203 magnet is
installed. It may be necessary to orient the Model 5203 axis to minimize the effects of external
fields, to relocate ac power sources or to install suitable magnetic shielding.
The 5203 Electromagnet features four M3 clearance holes in its base plate and should be securely
mounted to a stable foundation. Refer Drawing 17907-0412-0_C in section 4.6
The width of the working space in front of control cabinets and compartments should be the width of
the opening or 762mm (30 in.), whichever is greater. Where control equipment or devices are
mounted on or through the fixed area around the opening into the control cabinet or compartment,
the width of the working space in front of the control cabinet or compartment shall include the width
of the fixed area containing the control equipment and devices.
The working space height shall be clear and extend from the grade, floor, or platform to a height of
2.0 m (6 ½ ft). Within the height requirements of Section 11.5, other equipment associated with the
machine located above or below the control cabinet or compartment shall be permitted to extend not
more than 150 mm (6 in.) beyond the front of the electrical control cabinet or compartment.
The working space shall permit at least 90-degree opening of control cabinet and compartment doors
or hinged panels.
The main disconnect plug socket combination shall be marked “Main Disconnect. The Main
Disconnect should be located within sight from the operator station and be readily accessible. The
height of Main Disconnect must not be greater than 2m height from floor.
The switch rated plug/receptacle shall not be placed below 0.6m to be compliant with NFPA 79.
At least one entrance of sufficient area shall be provided to give access to the working space around
control cabinets or compartments and working space should not be used for storage.