Figure 14-4 Example magnetic field profiles for a powerline under different loading conditions Short Time Emergency Load Typically used when assessment compliance against the guidelines (see Section 6). This load – could be the short time thermal limit and may in practice never be reached on a line. Infrequent High Load The yearly peak with the system substantially normal. – Typical Daily Maximum - The peak value reached for the line on a typical day Typically used when assessing the application of prudent avoidance (see Section 7). Time Weighted Average (TWA) Load – Typical Daily Minimum - The minimum value reached for the line on a typical day
Figure 14-4 Example magnetic field profiles for a powerline under different loading conditions Short Time Emergency Load – Typically used when assessment compliance against the guidelines (see Section 6). This load could be the short time thermal limit and may in practice never be reached on a line. Infrequent High Load – The yearly peak with the system substantially normal. Typical Daily Maximum - The peak value reached for the line on a typical day Time Weighted Average (TWA) Load – Typically used when assessing the application of prudent avoidance (see Section 7). Typical Daily Minimum - The minimum value reached for the line on a typical day
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