CA-MERCED NWR-Solar Distribution Panel Replacement

SOLAR PANEL - SUB PANEL REPLACEMENT SALIENT CHARACTERISTICS & COMPONENT ASSESSMENT CA-SNLNWRC-SNOBIRD Solar Panel Replacement 1. Purpose This document identifies the minimum technical information and salient characteristics needed to define the Solar Panel Replacement requirement. The COR should complete or confirm all applicable requirements so prospective contractors’ materials meet or exceed the evaluation of the existing damaged system and propose a complete, compatible, durable, and fully operational replacement. 2. Existing Damaged Components / Field Conditions (Meet or Exceed) Component Existing Rating / Size Observed Condition Required Action Customer / Site Data Needed Solar electrical equipment / panel 400 amp 600 volt sub panel NEMA 3R Square D/ Siemens sub panel 480/277v 3 phase 4 wire 400 A MAX Size- 20”W x 5.75”D x 62”H Catalog number: P1E30MC400AT Burnt / fire or heat damaged Inspect and replace damaged equipment as required Manufacturer, model, voltage, phases, photos, nameplate data Breakers 2) 100A 3P breaker 1) 20A 3P breaker 1) 80A 3P breaker Burnt, damaged, or heat exposed Replace affected breakers and verify coordination/rating Amp ratings, interrupting rating, quantity, panel compatibility Wiring / Conductors 500 mcm coper wire #2 thhn coper wire Roughly 570’ of 500 mcm Roughly 190’ of #2 thhn 500 mcm rating: 60 degree (140f) 320 A, 75degree (167f) Burnt, melted, or heat damaged Remove and replace all compromised conductors Wire size, material, insulation type, length, conduit/raceway condition -- 1 of 5 -- 380A, 90 degree (194f) Rated for up 600V #2 thhn will be used for ground. 115 amps at the 75 degree c ratings Solar Panels / Modules To be confirmed As for the solar panels/modules, inverters/controllers those all seem to be ok and didn’t have any damage to them. Replace damaged modules or provide compatible replacement system Quantity, watts/module, total kW, dimensions, mounting configuration Inverter / Controller To be confirmed As for the solar panels/modules, inverters/controllers those all seem to be ok and didn’t have any damage to them. Replace if damaged or incompatible Manufacturer/model, input/output voltage, capacity, monitoring requirements NOTE: The term “400 Amp Solar Panel” should be verified during the site assessment. The 400 Amp rating may refer to a distribution panel, service panel, disconnect, combiner, or other electrical equipment associated with the photovoltaic system. 3. Minimum Salient Characteristics (Solar PV Module System) System Component Minimum Requirement / Characteristic Customer Input Contractor Submittal Solar PV Modules Quantity; minimum wattage; total system capacity; module technology; efficiency; dimensions; environmental rating; warranty. TBD Product data sheets 400 Amp Electrical Equipment 400 A minimum rating where applicable; voltage; phase; enclosure rating; bus rating; short- circuit/interrupting rating; code-compliant construction. 400 amp 600 volt sub panel NEMA 3R Square D/ Siemens sub panel 480/277v 3 phase 4 wire 400 A MAX Size- 20”W x 5.75”D x 62”H Catalog number: P1E30MC400AT Manufacturer and model data Circuit Breakers Correct ampere, voltage, pole, and interrupting ratings; compatible with associated equipment; new and listed for intended use. 2) 100A 3P breaker 1) 20A 3P breaker 1) 80A 3P breaker Breaker schedule/product data -- 2 of 5 -- Wiring and Conductors Proper conductor size and ampacity; copper/aluminum as specified; insulation and temperature rating; PV- rated wiring where applicable; replace heat- damaged conductors. 500 mcm coper wire #2 thhn coper wire Roughly 570’ of 500 mcm Roughly 190’ of #2 thhn 500 mcm rating: 60 degree (140f) 320 A, 75degree (167f) 380A, 90 degree (194f) Rated for up 600V #2 thhn will be used for ground. 115 amps at the 75 degree c ratings Wire/conductor schedule Inverter / Charge Controller Compatible with PV array and existing electrical system; required input/output voltage; capacity; efficiency; monitoring and protective functions. Provide existing equipment data Product data and calculations Mounting / Racking Corrosion-resistant; compatible with structure and modules; designed for site wind, snow, and environmental loads. OMCO direct-bolt mounting system, galvanized steel Manufacturer details Disconnects / Combiner / Protection Provide required disconnects, combiner equipment, overcurrent protection, grounding, bonding, and surge protection. Confirm existing configuration Single-line diagram and product data System Completion All labor, materials, equipment, accessories, testing, startup, commissioning, and incidental work for a complete operational system. Confirm operational requirements Testing/commissioning records Raceway 3” pvc counduit going to reuse some of the existing conduit and may require some new conduit to be added not sure on the exact footage that will need to be replace at this time. Will need to replace the 3” female pvc adapter -- 3 of 5 -- and chase nipple going into new panel. 4. Damage Assessment and Replacement Requirements • Contractor shall inspect the burnt or heat-damaged 400 Amp electrical equipment, breakers, wiring, connectors, conduit/raceways, and adjacent components. • All components determined to be damaged, compromised, unsafe, or unsuitable for continued service shall be identified, reported, and replaced with approval of COR and CO as authorized by the contract terms and conditions. • Replacement equipment shall be new, compatible with the solar photovoltaic system and existing facility electrical system, and properly rated for the intended application. • The contractor shall not reuse wiring, breakers, terminals, or electrical components that show evidence of burning, melting, excessive heat exposure, arcing, insulation deterioration, or other unsafe conditions. • Final installation shall include required labeling, grounding, bonding, testing, startup, commissioning, and verification of proper system operation. 5. Custom…