In IEC 60079-15 Clause 13, Low power device or components are exempt from evaluation of creepage and clearance, as defined in Clause 6.4 of the standard. I designed a computer system which uses an i7 quad-core CPU module (COMe). The problem is the module draws 37W of power, and Note 1 in Clause 13 states Low power is typically considered 20W or less. The word typically bothers me, but also the fact some competitors have gotten their systems certified with a 45W i7 quad-core CPU. The notified body we are using is insisting that our CPU cannot be approved. Does anyone in the group have experience with certifying a higher wattage CPU module for international hazardous locations?
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