Bacharach Parasense GRM2 CO2 Series, Руководство по эксплуатации и техническому обслуживанию

Страница: 9 / 97

2-2
Operation & Maintenance Manual
Doc. Ref. MNGRM2CO2 REV. 3
ELECTRICAL REQUIREMENTS
Each monitor requires an earthed, AC single phase mains supply in the range 100 to 240 volts, 50 to
60 Hz, protected by a 5 amp fuse or similar over current circuit breaker. Power consumption for this
monitor is 65 watts.
The final connection should be made as indicated, incorporating a water tight strain relief bush with a
smoothly rounded opening, through the detector enclosure.
Cable used shall be RATED for the maximum current of the equipment, and shall be certified or
approved by a recognized testing authority.
The cable anchorage shall relieve the conductors of the cable from strain, including twisting, where
they are connected within the equipment, and shall protect the insulation of the conductors from
abrasion. The protective earth conductor, if any, shall be the last to take the strain if the cable slips in
its anchorage.
Cable anchorages shall meet the following requirements:
1) The cable shall not be clamped by a screw which bears directly on the cable.
2) Knots in the cable shall not be used.
3) It shall not be possible to push the cable into the equipment to an extent which could cause a
hazard.
4) Failure of the cable insulation in a cable anchorage which has metal parts shall not cause
accessible conductive parts to become hazardous live.
5) It shall not be possible to loosen the cable anchorage without the use of a tool.
6) It shall be designed so that cable replacement does not cause a hazard, and it shall be clear
how the relief from strain is provided.
A compression bushing shall not be used as a cable anchorage unless it is suitable for use with the
mains supply cable supplied with it or specified for it by the manufacturer.