Electric Fields - Fujitsu M10 Series Installation Planning Manual

CHAPTER 5 Electromagnetic Environment and Static Electricity
5.2

Electric Fields

This section describes electric fields.
5.2.1 Allowable electric field intensities for server systems
Each equipment has an allowable electric field intensity of 3 V/m, where 1 V/m is 120
dB/V.
An electric field intensity of 1 V/m is a typical level encountered in a low-level
electromagnetic radiation environment. For the example purpose:
 In transmissions from a typical radio or TV station located 1 km (3000 ft) away or
farther
 In transmissions from a low-power transceiver
5.2.2 Conditions for using mobile phones
Keep the main unit doors closed and stay 1.7 m (5 ft) away from the main unit before
using mobile phones.
Moreover, since mobile phones automatically emit electromagnetic waves in response
to incoming messages, Fujitsu recommends keeping mobile phones switched off near
the computing equipment.
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