Maintain the performance standard (C62.44) and application guide (C62.34) for surge protective devices designed for application on the low voltage ac supply mains (less than 1000 V rms, frequency between 48 Hz and 62 Hz). These documents apply to surge protective devices intended for connection at locations between and including the secondary terminals of the service transformer and the main service entrance panel on the line side of the main overcurrent protective device. These surge protective devices are also known as secondary arresters.
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