Abstract: A portable, temporary power distribution system is contained in a fully integrated, reusable container, and is particularly useful in temporary applications, especially as an alternative power distribution system. The portable system provides comprehensive functionality for all aspects of a power system, and any adjuncts thereto. The portable power distribution system is fully integrated, and can include, for example, low voltage capability, emergency lighting control, communication, power allocation control and circuit protection, as well as any other protective or control feature that is used in a permanent power distribution system for virtually any installation.

Abstract: A isolated power supply for protecting electrical devices from transient voltages and currents is disclosed. Specifically, the filter has a toroid and resistor which are used in conjunction with an isolator transformer. The transformer's secondary windings are coupled to the electrical load sought to be isolated. The primary windings of the transformer are tied to an alternating current source with an earth ground lead. The primary shield lead of the transformer is tied to the earth ground lead. The secondary shield lead of the transformer is also tied to the earth ground. A toroid inductor and resistor in parallel are coupled between the secondary neutral lead and the secondary ground lead to shunt off current or voltage spikes. The earth ground is part of a chassis which prevents spark jump insuring the isolation of the power source. The isolator thus provides equal voltage potential between the secondary lead and the primary earth ground at frequencies of less than 1 kHz.

Abstract: A isolated power supply for protecting electrical devices from transient voltages and currents is disclosed. Specifically, the filter has a toroid and resistor which are used in conjunction with an isolator transformer. The transformer's secondary windings are coupled to the electrical load sought to be isolated. The primary windings of the transformer are tied to an alternating current source with an earth ground lead. The primary shield lead of the transformer is tied to the earth ground lead. The secondary shield lead of the transformer is also tied to the earth ground. A toroid inductor and resistor in parallel are coupled between the secondary neutral lead and the secondary ground lead to shunt off current or voltage spikes. The earth ground is part of a chassis which prevents spark jump insuring the isolation of the power source. The isolator thus provides equal voltage potential between the secondary lead and the primary earth ground at frequencies of less than 1 kHz.

Abstract: A safety reflector comprising two support members which have snap-acting interlocking means on them for releasably locking or securing them together in spaced apart relationship. At least one side of each of the two support members is provided with a reflective material which will reflect light impinged on it.