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Power Load Box
The load box was developed to test for the ambient neutral-to-earth voltage on a residential service (stray voltage) under full service load capacity. The design ingeniously utilizes a battery of off-the-shelf hair dryers with a set of controlling switches to set various load levels. This device can dissipate up to 24 kWatts of power in a continuous mode.

	The unit is compact and easily portable. It is housed in two cases, one for the load itself (the hair dryers), and another for the controls.
	The load is composed of 20 commercial hair driers, each rated at 1200 Watts. The load can be set for any level in incremental steps, and can be arbitrarily split between the two 120-V lines.
	The load box connects to the residential service at the kWatt-hour meter. A special adapter is plugged into the meter base temporarily, and a special connection is made to the neutral wire.

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` Last updated: June 5, 1998.