IEEE 1528-2013 Latest Edition and Power Exemption Limits

IEEE 1528-2013 Latest Edition

Industry Canada's RSS-102 – RF exposure compliance for radio communication equipment (all frequency bands) includes references to the international standard IEEE 1528. Section 3 of Version 4 of RSS - 102 states:

SAR evaluation shall be conducted in accordance with the latest version of IEEE 1528 and/or IEC 62209.

On September 6, 2013, IEEE 1528-2013 authorized the IEEE Recommended Practice for Peak Spatial Average Specific Absorption (SAR) of wireless communication equipment used near the human head: the measurement technology was published by IEEE Standards Organization.

( http://www.techstreet.com/ieee/products/vendor_id/4418 )

Industry Canada will allow a transition period to adopt the latest IEEE standards.

Before December 1, 2013, Industry Canada will evaluate the SAR compliance of equipment used near the head according to IEEE 1528-2003, IEC 62209-1 Ed. 1 or IEEE 1528-2013. After December 1, 2013, only IEEE 1528-2013 standards will be used for SAR compliance assessment of devices used near the head.

Note: During the transition period, when performing SAR compliance assessment on equipment used near the head, Industry Canada will not accept the use of different standards (such as IEEE 1528-2003 system calibration and IEEE 1528-2013 SAR measurement protocol). Testing will only be conducted according to one standard, not a combination of multiple standards.

2) Power exemption limit

When determining whether a routine evaluation is required, refer to the power exemption limits for routine evaluation specified in Section 2.5 of Version 4 of RSS-102.

However, the department will also accept the power exemption limit based on the draft version 5 of RSS-102. After the release of the fifth version of RSS - 102, only the power exemption limit in that version will be used.

2.5.1 Exemptions from routine assessment - SAR assessment

If the separation distance between the user and/or bystander and the antenna and/or radiation unit of the equipment is less than or equal to 20 cm, SAR assessment will be required, except for the applied output power (including the power tolerance of the equipment) when the equipment operates at or below the separation distance specified in Table I.

Table 1: SAR Assessment - Exemptions for routine assessment based on frequency and interval distance 1

frequency(MHz)

Exemption from restrictions(mW)

Spacing distance ≤ 5mm

The spacing is 10mm

The spacing is 15mm

The spacing is 20mm

The spacing is 25mm

≤300

71mW

101 mW

132 mW

162 mW

193 mW

450

52 mW

70 mW

88 mW

106 mW

123 mW

835

17 mW

30 mW

42 mW

55 mW

67 mW

1900

7 mW

10 mW

18 mW

34 mW

60 mW

2450

4 mW

7 mW

15 mW

30 mW

52 mW

3500

2 mW

6 mW

16 mW

32 mW

55 mW

5800

1 mW

6 mW

15 mW

27 mW

41 mW

frequency(MHz)

Exemption from restrictions(mW)

Spacing distance is 30mm

The spacing is 35mm

The spacing is 40mm

The spacing is 45mm

Spacing distance ≥ 50mm

≤300

223 mW

254 mW

284 mW

315 mW

345 mW

450

141 mW

159 mW

177 mW

195 mW

213 mW

835

80 mW

92 mW

105 mW

117 mW

130 mW

1900

99 mW

153 mW

225 mW

316 mW

431 mW

2450

83 mW

123 mW

173 mW

235 mW

309 mW

3500

86 mW

124 mW

170 mW

225 mW

290 mW

5800

56 mW

71 mW

85 mW

97 mW

106 mW

    The output power level shall be the greater of the maximum conducted output power or equivalent omnidirectional radiated power (e.i.r.p.) averaged over time based on the source. For a controlled device, the limit of 1g tissue fluid SAR is 8W/kg, and the exemption limit for routine evaluation in Table 1 should be multiplied by a factor of 5. For equipment suitable for 10 g limb wear, the exemption limit for routine evaluation should be multiplied by a factor of 2.5. If the operating frequency of the equipment is between the two frequencies in Table 1, the exemption limit shall be calculated by linear interpolation at the corresponding interval distance. For tests with an interval of less than 5 mm, refer to the exemption limit with an interval of 5 mm to determine whether a routine evaluation is required.

    For medical implant equipment, the exemption limit for routine evaluation is set at 1mW. The output power of medical implant equipment is determined as the larger value of conduction power or effective omnidirectional radiation power to determine whether the equipment is exempt from SAR evaluation.

    The exemption limit in Table 1 is based on the measurement and simulation of the half wave dipole antenna at a distance of 5 mm to 25 mm from the plane phantom, and the SAR value in 1g tissue fluid is about 0.4 W/kg. The exemption limit of low frequency (300MHz to 835MHz) comes from linear fitting. The exemption limit for high frequencies (above 1900 MHz) comes from a third-order polynomial fitting.


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