Flowserve 6LR-18A, Руководство пользователя

Страница: 51 / 116

GEI 56128-L
© Copyright 2016 General Electric Company
5
3. Severe-duty enclosed motors can be used in highly corrosive or excessively moist areas.
4. Zone 2 Hazardous Locations
All motors marked with an IECEx or ATEX designation are suitable for Zone 2 locations. Before the motor is installed in
the hazardous location, the marking must be reviewed for the intended location. If the motor marking does not meet
the intent of the location do not install or operate the motor. Refer to BS/EN 60079-0 and BS/EN 60079-15.
Motor marking for IECEx will have a nameplate with the IECEx logo, IECEx certification number, and IECEx marking
codes. An example of the IEC Ex marking is as follows;
Ex nA IIC T3 Gc
Where symbol:
a. Ex provides assurance of protection per IEC standards.
b. nA indicates non-sparking
c. IIC is a code to indicate the type of explosive gas atmosphere.
d. T3 is a code for the maximum surface temperature.
e. Gc is a code for the motor protection level.
Refer to B/EN 60079-0 and BS/EN 60079-15 for the meaning and understanding of all symbols and codes.
5. Division 1 Explosion-proof motors bearing the Underwriters’ Laboratories label designating the motor’s
Class and Group as defined in the National Electrical Code (NEC) are designed for operation in areas
classified by local authorities as hazardous in accordance with the NEC.
B. Mounting
1. Mount motors securely on a firm, flat base. Grout-in larger motors, if necessary. Grease lubricated
motors can be wall or ceiling mounted with the shaft horizontal. Grease lubricated motors in NEMA 140–
320 frame ratings can be wall mounted with the shaft vertical. The standard transition and/or sliding
bases are only suitable for floor mounting. For other mounting positions, please refer to your local GE
representative.
Oil lubricated sleeving-bearing motors shall always be mounted with the shaft horizontal. The endshield
shall be located with the oil ring sight glass in the twelve o’clock position.
WARNING: Remove drain plugs from the frame or end shields of enclosed motors used outdoors or in
other high moisture areas.
2. On motors with dual mounting holes use the holes indicated per Figure 2A and 2B .