WEIDMUELLER Hlavní katalog řadových svorek (EN)

| Kategorie: Katalog  | Tento dokument chci!

Všechny kapitoly z nejnovějšího katalogu řadových svorek a SAK Weidmüller ...

Autor: Weidmüller

Strana 529 z 571

Vámi hledaný text obsahuje tato stránku dokumentu který není autorem určen k veřejnému šíření.







Poznámky redaktora
g.00 4.Electrical data Rated impulse withstand voltage The rated impulse withstand voltage is derived from: • Voltage conductor earth (the rated voltage the network, taking into account all networks) • Surge category Surge categories are stipulated accordance with the German standard DIN VDE 0110-1 (for electrical equipment fed directly from the low-voltage network). electricity meters, circuit- breakers and centralised ripple controllers. Pollution severity category 4 • Contamination results constant conductivity, e. Pollution severity category 3 • Conductive pollution, dry, non-conductive pollution that is liable rendered conductive through condensation. Surge category II • Equipment connected the permanent electrical installation a building, e. Surge category III • Equipment that part the permanent electrical installation and other equipment where a higher degree availability is expected, e.00 4. caused by conductive dust, rain snow.50 1. Design clearances and creepage distances in electrical equipment influencing factors Table Rated impulse withstand voltages for electrical equipment Rated voltage power supplies system V Rated impulse withstand voltage kV Three-phase systems Single-phase systems with neutral point Electrical equipment at the supplies point of the installation (Surge category IV) Electrical equipment as part the permanent installation (Surge category III) Electrical equipment to connected to the permanent installation (Surge category II) Specially protected electrical equipment (Surge category I) 120 240 4. Pollution severity category 2 • Non-conductive pollution only; occasional condensation may cause temporary conductivity.50 0. Unless explicitly stated otherwise, the dimensioning clearance and creepage distances and the resulting rating data for electromechanical products (terminals, terminal strips, PCB connection terminals and plug-in connectors) based pollution severity and surge category III, taking account all network types.00 2.00 6. distribution boards, circuit-breakers, wiring systems (including cables, busbars, junction boxes, switches, power sockets) in the permanent installation, and equipment for industrial use and some other equipment, e.g.50 1.g.00 2.80 230/400 277/480 6. stationary motors with permanent connections the permanent installation. Pollution severity categories Pollution severity category 1 • No pollution, only dry, non-conductive pollution that has no influence. Surge category VI • Equipment for use near the power supplies the electrical installations buildings, between the principal distribution and the mains, e. Measures limit transient surges to the specific level are taken outside the equipment, either the permanent installation between the permanent installation and the equipment. Surge category I • Equipment that intended to be connected the permanent electrical installation building.g.50 1000 Values depend the particular project of, values are available, the values the preceding line apply.g.171282250000 2012/2013 . *) IEC 38 W Technicalappendix W.50 400/690 8. household appliances, portable tools, etc.00 2