Introduction to Electrical Engineering

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Pro: ČEKO IMPORT a.s.
Vydal: České vysoké učení technické Praha Autor: Vladimír Kůla, Michal Kříž

Strana 64 z 112

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14 Accessibility electrical equipment * sufficient space for the initial installation and later replacement individual items of electrical equipment; * accessibility for operation, testing, inspection, maintenance, and repair.4. . atmospheric phenomena switching overvoltages). 6. 6.g.4. 6. 6. − power factor, − inrush current, − asymmetrical load, − harmonics. 6.4.4. All electrical equipment shall selected that will not cause harmful effects other equipment impair the supply during normal service including switching operations. should installed such way that can easily recognized and effectively and rapidly operated. If, however, item equipment does not have design the properties corresponding its location, may used condition that adequate additional protection provided part of the completed electrical installation.10 Disconnecting devices Disconnecting devices shall provided permit disconnection the electrical installation, circuits individual items apparatus required for maintenance, testing, fault detection repair.12 Conditions installation All electrical equipment shall selected withstand safely the stresses and the environmental conditions characteristic its location and which may exposed.4.CONSTRUCTION ELECTRICAL INSTALLATION AND EQUIPMENT 65 Persons livestock shall protected against injury and property shall protected against damage consequence any excessive voltages likely arise due other causes (e. this context, the factors, which can have influence, include, e.g.13 Prevention mutual influence The electrical installation shall arranged such way that mutual detrimental influence will occur between the electrical installation and non-electrical installations the building.11 Emergency control Where, case danger, immediate interruption supply could necessary an interrupting device shall installed