Microwave Data Systems MDS 4310, Установка, эксплуатация и техническое обслуживание на месте

Страница: 122 / 129

MDS 05-2415A01, Rev. A H-1
APPENDIX H
MDS 4310-HL DATA TRANSCEIVER
FOR USE IN HAZARDOUS LOCATIONS
INTRODUCTION
The MDS 4310-HL Data Transceiver is available for use in Class I, Division 2, Groups A, B,
C, and D Hazardous Locations. Such locations are defined in Article 500 of the National Fire
Protection Association (NFPA) publication NFPA 70, otherwise known as the National
Electrical Code.
The MDS 4310-HL Data Transceiver has been recognized for use in these hazardous
locations by two independent agencies —Underwriters Laboratories (UL) and Factory
Mutual Research Corporation (FMRC). The UL certification for the transceiver is as a
Recognized Component for use in these hazardous locations, in accordance with UL
Standard 1604. The FMRC Approval is in accordance with FMRC Standard 3611.
CONDITIONS OF APPROVAL
The MDS 4310-HL Data Transceiver is not acceptable as a stand-alone unit for use in the
hazardous locations described above. It must either be mounted within another piece of
equipment which is certified for hazardous locations, or installed within guidelines, or
conditions of approval, as set forth by the approving agencies. These conditions of approval
are as follows:
1. The transceiver must be mounted within a separate enclosure which is suitable for
the intended application.
2. The antenna feedline, DC power cable and interface cable must be routed through
conduit in accordance with the National Electrical Code.
3. Installation, operation and maintenance of the transceiver should be in accordance
with the transceiver's installation manual, and the National Electrical Code.
4. Tampering or replacement with non-factory components may adversely affect the
safe use of the transceiver in the hazardous locations, and may void the approval.
Refer to Articles 500 through 502 of the National Electrical Code (NFPA 70) for further
information on hazardous locations and approved Division 2 wiring methods.