IEEE C95.1-2345-2014 pdf download

IEEE C95.1-2345-2014 pdf download.IEEE Standard for Military Workplaces- Force Health Protection Regarding Personnel Exposure to Electric, Magnetic, and Electromagnetic Fields,0 Hz to 300 GHz.
Zone 3 (restricted off-limits) ERLs represents a no-access buffer zone, which exceeds the Zone 2 ERLs but is lower than the adverse health effect level.
NOTE—Zone 3 requires Warning and Danger signs and possibly barriers to prevent access. This restriction on access is placed to prevent personnel from exposure to the established adverse health effect level under normal operational procedures and does not apply to emergency situations.
1.3.4 Safety factor and margin of safety
The term “safety factor” is commonly defined as the ratio of an adverse health effect exposure level to the corresponding specified exposure level. The margin of safety may be less than the safety factor because of finite uncertainties (e.g., confidence interval) in the measurement of exposure levels in the data from which adverse effect threshold values are determined and measurement uncertainty in determining any exposure level. There may be some uncertainty in the adverse health effect level.
The derivation of safety factor (and margin of safety) is different for reactions due to electrostimulation versus thermal effects. The DRLs for protection against effects of electrostirnulation are derived from statistical data regarding the variation of pain thresholds below the 1% probability level. In addition, for Zone 0, an additional safety factor reduces the DRL to assure that the probability of a painful reaction is much less than 1 %. This additional factor is not applied for Zone 1. The safety factor (for protection against heating effects) for both whole-body and localized exposures of duration greater than the averaging time have been estimated to have values of 10 for Zone 1 and approximately 50 for Zone 0. One should be cautious in comparing safety factors in situations in which the DRLs are fields with situations in which DRLs are power-related quantities such as SAR.L)
1.3.5 Risk management personnel protection program
Risk of overexposure and adverse health effects can be reduced by an effective risk-management program (cf IEEE Std C95.7Thi2005). A multi-layer risk-reduction safety program shall be implemented, which typically is developed with input from electrical engineers, risk assessment and risk characterization experts, bioenvironmental engineers, radiation-safety officers, health physicists, and medical doctors trained in clinical care of EMF overexposure. Moreover, prior to gaining access to Zone I or to Zone 2 (where the safety factor and margin of safety are reduced), personnel shall be instructed on health effects and risk-management procedures associated with EM F exposure.
The DRLs and ERLs in this standard apply only in areas where people have access. When there may be access to areas where the Zone 0 DRLs may be exceeded, access and exposures shall be limited through the implementation of a risk management personnel protection program, such as that described in iEEE Std C95.7-2005 for RF fields, to help ensure that persons permitted entry are informed and trained and will not be exposed in excess of the Zone I or the Zone 2 ERLs.
Although DRLs and ERLs are defined to protect against established adverse health effects, access to restricted environments (Zone I and Zone 2) shall require education and various mitigating measures to reduce the likelihood of persons being exposed to levels associated with established adverse health effects. Exposures can be mitigated with control measures that are appropriate to the anticipated exposure situation. Examples of such measures include frequency appropriate protective gloves or shoes, awareness programs designed to alert personnel to the possibility of exposure leading to adverse SOH effects, administrative or engineering controls designed to reduce exposures, or specitic work practices that lessen the duration or intensity of exposure and help ensure personnel are not exposed above the defined limits.