Laserfiche WebLink
I <br /> Section 40 90 00 PROCESS CONTROL SYSTEM GENERAL PROVISIONS <br /> 1 B. Provide surge protective device on incoming telephone line. Telephone line <br /> surge arrestor shall be rated for use with public switched telephone network (i.e., <br /> I normal telephone service) signaling and shall provide dual stage protection of <br /> over-voltage transients as well as sneak voltages. Provide Sola-Nevi Duty STC- <br /> TEL-200T or equal. <br /> I2.08 RELAYS <br /> A. Control relays for switching 120 Volts Alternating Current power circuits or motor <br /> II starting circuits shall be electro-mechanical machine tool, heavy-duty type per <br /> NEMA ICS Standard with 120-volt coils and double-break contacts rated B-300 <br /> by NEMA standards: Allen-Bradley 700 N, General Electric CR 120, Square D <br /> I Company Class 8501, Type G or equal, Eaton. Equip relays with surge <br /> suppressers. IEC rated relays are not permitted. <br /> I B. Control relays for logic control circuits shall be permitted to be terminal block <br /> style type relays. Coils shall be rated 120 Volts Alternating Current or 24 Volts <br /> Direct Current (as required). Contacts shall be double break type rated B300 by <br /> NEMA standards. Relays shall have indicator flags. Allen-Bradley, or equal. <br /> I <br /> C. Time delay relays shall be electronic type Allen Bradley 700 Series or equal. <br /> I D. Intrinsically safe relays shall be fixed sensitivity type U/L approved for use with a <br /> remote pilot device (dry contact) located in Class I, Division 1, Group C and D <br /> area. Supply power shall be 120-volt AC 60 Hz. Final contact rating shall be 10 <br /> I amperes or better at 120 volts AC. ISR units shall be as manufactured by <br /> GEMS, Stahl, or equal. <br /> Il2.09 POWER CONVERTERS <br /> A. 120 Volts alternating current to 24 Volts direct current <br /> I1. Power supplies shall provide120 Volts Alternating Current input with 24 <br /> Volts direct current output with a user adjustable voltage trim. <br /> I 2. Provide 10 amperes at 24 Volts direct current unless noted otherwise. <br /> 3. Provide Sola Hevi-Duty SDN-C series, or equal. <br /> 0 B. 120 Volts Alternating Current to 12 Volts Direct Current Power Supply/ Battery <br /> Charger <br /> 1. Shall supply 15 amperes at 12 Volts Direct Current nominal (14 Volts <br /> Direct Current max) <br /> 2. Shall provide floating-charge to connected battery when battery is fully <br /> I charged. <br /> 3. Shall be IOTA Engineering DLS-15 or equal. <br /> IC. 120 Volts Alternating Current to 24 Volts direct current Class 2 power supply <br /> 1. Power supply shall provide power in accordance with NEC Class 2 power <br /> I <br /> City of Everett supply requirements with an adjustable voltage output around the nominal <br /> 40 90 00-11 January 2022 <br /> Evergreen Pump Station Modifications <br /> UP3747-3 <br /> IIIssued for Bid <br />