Limiting Electromagnetic Interference (Emi) - SamplexPower PST-1500-12 Mode D'emploi

SECTION 2 |
TABLE 2.1: INVERTER SIZING FACTOR
Type of Device or Appliance
Air Conditioner / Refrigerator / Freezer (Compressor based)
Air Compressor
Sump Pump / Well Pump / Submersible Pump
Dishwasher / Clothes Washer
Microwave (where rated output power is the cooking power)
Furnace Fan
Industrial Motor
Portable Kerosene / Diesel Fuel Heater
Circular Saw / Bench Grinder
Incandescent / Halogen / Quartz Lamps
Laser Printer / Other Devices using Infrared Quartz Halogen Heaters
Switch Mode Power Supplies (SMPS): no Power Factor correction
Photographic Strobe / Flash Lights
NOTES FOR TABLE 2.1
1. Multiply the Maximum Continuous Running Power Rating (Active Power Rating in
Watts) of the appliance / device by the recommended Sizing Factor to arrive at the
Maximum Continuous Running Power Rating of the inverter.
2. For photographic strobe / flash unit, the Surge Power Rating of the inverter should be
> 4 times the Watt Sec rating of photographic strobe / flash unit.
SECTION 3 |
3.1 EMI AND FCC COMPLIANCE
These inverters contain internal switching devices that generate conducted and radiated
electromagnetic interference (EMI). The EMI is unintentional and cannot be entirely
eliminated. The magnitude of EMI is, however, limited by circuit design to acceptable
levels as per limits laid down in North American FCC Standard FCC Part 15(B), Class B.
These limits are designed to provide reasonable protection against harmful interfer-
ence when the equipment is operated in residential environment. These inverters can
conduct and radiate radio frequency energy and, if not installed and used in accordance
with the instruction manual, may cause harmful interference to radio communications.
3.2 REDUCING EMI THROUGH PROPER INSTALLATION
The effects of EMI will also depend upon a number of factors external to the inverter
like proximity of the inverter to the EMI receptors, types and quality of connecting wires
and cables etc. EMI due to factors external to the inverter may be reduced as follows:
12 | SAMLEX AMERICA INC.
General Information
Limiting Electro-Magnetic
Interference (EMI)
Inverter
Sizing Factor
(See note 1)
5
4
3
3
2
3
3
3
3
3
4
2
4 (See Note 2)