POWERGATE EMERGENCY LIGHTING TRANSFER SWITCH - SPECIFICATION (continued) 2 1020-SPEv2 3.1. A programmable logic controller (PLC) shall monitor normal power supply for power loss, phase loss, reversal and under voltage. 3.2. Circuits shall be transferred to emergency power if: 3.2.1. Any normal power phase drops below 90 VAC (75% of normal) OR 3.2.2. Any or all normal power phases drop out OR 3.2.3. A fire alarm signal is received from the fire alarm system. 3.3. The system shall have a 5 second time delay from Normal to Emergency to allow for generator start up. 3.4. The system shall have a 1 minute time delay from Emergency back to Normal to ensure the normal supply is stable. 4. CONTROL 4.1. The control circuit with interfacing relays shall regulate the operation. 4.2. The system shall be capable of remote activation from the fire alarm or other auxiliary interface circuits. 4.3. The system shall be capable of manual switching between normal and emergency activation via a remote keyswitch for the purpose of periodic testing per code. 4.4. The system shall have a contact closure to automatically start a generator in the event of a power disruption. 4.5. The normal power sense feed shall be fed from an upstream breaker. 5. INDICATORS 5.1. The ELTS shall have two (2) indicator lights. 5.1.1. An illuminated green LED shall indicate the ELTS is in a normal mode operating under normal power. 5.1.2. An illuminated red LED shall indicate the ELTS is in an emergency mode operating under emergency power. 6. COMPLIANCE 6.1. The ELTS comply with the following requirements: 6.1.1. ANSI/UL1008 Transfer Switch Equipment 6.1.2. ANSI/NFPA110 Standard for Emergency and Standby Power Systems. 6.1.3. ANSI/NFPA70(NEC) National Electrical Code Standards: 6.1.3.1. Article 700 - Emergency Systems 6.1.3.2. Article 701 - Legally Required Standby Systems 6.1.3.3. Article 702 - Optional Standby Systems 6.1.3.4. Section 518.3(C) - Assembly Occupancies
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