What influence does this have on Electrostatic Discharge (ESD)?

The humidity in the computer room has changed from about 50% down to 35% Relative Humidity (RH).

What influence does this have on Electrostatic Discharge (ESD)?
A . No influence as long as the temperature is at approximately 20°C/77°F
B . Relative humidity has no influence on ESD
C . ESD levels will go up
D . ESD levels will go down

View Answer

Answer: C

Explanation:

As relative humidity decreases, Electrostatic Discharge (ESD) risks increase. Lower humidity levels reduce the amount of moisture in the air, which normally helps dissipate static charges. When the humidity drops from 50% to 35%, the likelihood of static electricity accumulating on surfaces rises, leading to a higher potential for ESD incidents that could damage sensitive IT equipment .

Detailed Explanation

ESD events are more common in dry environments because there is less atmospheric moisture to neutralize electrical charges. Maintaining relative humidity above 40% helps minimize the risk of ESD, which is why data centers often control humidity levels tightly to protect equipment from static discharge that could cause hardware failures or data loss.

EPI Data Center Specialist References:

EPI data center best practices stress the importance of maintaining stable humidity levels to prevent ESD, particularly in computer rooms. Recommended humidity ranges are typically above 40% to prevent conditions that would foster static buildup.