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    • Italian
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          • Term
            • declassamento
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          • Definition(s)
            • Riduzione della capacità di generare potenza utile di una macchina rispetto alla potenza nominale, dovuta al discostarsi delle condizioni operative dalle condizioni di riferimento (o nominali). Esempi di fattori che influenzano maggiormente il declassamento di una macchina: variazione della temperatura, pressione, umidità del fluido di servizio o del fluido di scambio termico, esercizio della macchina in funzionamento diverso da quello di progetto (continuo, intermittente, con parametri elettrici non nominali, etc). Nei testi specialistici si può trovare anche non tradotto. Own research - by pcs_MCIL
          • Example sentence(s)
            • POTENZA E DECLASSAMENTO Il valore di potenza indicato e' il massimo disponibile durante una sequenza di potenza variabile (PRP Prime Power) ISO Standard 8528.1 ed e' garantito con una tolleranza di + / - 5% , a motore rodato. Questo valore si riduce del: * 1% ogni 100 Mt. di altitudine * del 2% ogni 5°C al di sopra dei 20°C * del 10% per un utilizzo continuativo a carico costante (COP Continuous Power) ISO Standard 8528.1. - WFM generators by pcs_MCIL
            • Problemi di altra natura possono insorgere invece quando il gruppo elettrogeno viene utilizzato in ambienti dove i valori di temperatura, altitudine e umidità relativa sono più alti rispetto a quelli di riferimento. È questa una condizione spesso sottovalutata. La presenza delle suddette condizioni ambientali comporta un declassamento della massima potenza erogabile dalla macchina, tanto più accentuato, quanto più i valori si scostano da quelli di riferimento. In - rivista Attualità Elettrotecnica by pcs_MCIL
            • Per quanto riguarda il derating o in italiano "declassamento", le norme impongono per la classe B, ad una temperatura ambiente max. di 40°, una temperatura max degli avvolgimenti di 110°, mentre per la classe F, 145°. - PLC forum by pcs_MCIL
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    • Thai
      • Electronics / Elect Eng
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          • Term
            • การปรับลดค่าพิกัด
          • Additional fields of expertise
          • Definition(s)
            • การเลือกใช้อุปกรณ์ไฟฟ้า เช่น สายไฟฟ้า หรือสวิทซ์ตัดตอน จะต้องคำนึงถึงค่าตัวแปรซึ่งจะถูกปรับลดค่าลง (Derating) จากลักษณะการติดตั้ง หรือผลจากอุณหภูมิโดยรอบ เช่น การติดตั้งในกล่องหรือบริเวณที่ทึบ ค่าตัวแปรที่สามารถใช้งานได้จะมีค่าน้อยกว่าค่าพิกัดที่กำหนด Own research - by kong
          • Example sentence(s)
            • สายไฟฟ้าที่เดินในท่อร้อยสายจะมีความสามารถในการนำกระแสได้น้อยกว่าการเดินในอากาศ โดยทั่วไปพิกัดการทนกระแสที่แสดงใน ตารางสาย จะใช้กับจำนวนสายในท่อไม่เกิน 3 เส้นเท่านั้น ถ้ามากกว่านี้ความสามารถในการทนกระแสก็ยิ่งลดลง ซึ่งเป็นไปตาม ค่าตัวคูณลดพิกัดกระแส (Derating Factor) - Nectec Webbase Learning by kong
            • ตัวคูณลดพิกัด (derating factor) (ถามี). −. วิธีการประกอบ. −. ความจําเปนในการตรวจสอบการทํางานภายหลังการประกอบเพื่อทวนสอบการทํางานทางกล ... - Thai Industrial Standards Institute by kong
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