User:LMischler/Img-2018-G

Fig. G1 – Flow-chart for the selection of cable size and protective device rating for a given circuit (DB422280_EN)

Fig. G2 – Calculation of maximum load current IB (DB422281_EN)

Fig. G3 – Circuit protection by circuit breaker (DB422282_EN)

Fig. G4 – Circuit protection by fuses (DB422283_EN)

Fig. G5 – I2t characteristic of an insulated conductor at two different ambient temperatures (DB422284)

Fig. G6 – Current levels for determining circuir breaker or fuse characteristics (DB422285_EN)

Fig. G7 – Location of protective devices

• 

  (DB422286a)

• 

  (DB422286b_EN)

• 

  (DB422286c_EN)

Fig. G25 – Maximum admissible currents (p.u.) in a busbar trunking system as functions of the 3rd harmonic level (DB422311_EN)

Fig. G28 – Maximum voltage drop (the values shown here are for circuits other than lighting circuits) (DB422312_EN)

Fig. G31 – Example 1 (DB422313_EN)

Fig. G32 – Exemple 2 (DB422314_EN)

Fig. G34 – Case of several transformers in parallel (DB422315)

Fig. G35 – Impedance diagram (DB422316)

Fig. G39 – Recapitulation table of impedances for different parts of a power-supply system (DB422317)

Fig. G40 – Example of maximum short-circuit calculations for a LV installation supplied at 400 V (nominal) from a 1000 kVA MV/LV transformer (DB422318)

Fig. G41 – Determination of downstream short-circuit current level Isc using Fig. G40 (DB422319_EN)

Fig. G43 – Circuit protected by aM fuses (DB422320_EN)

Fig. G44 – Circuit protected by circuit breaker without thermal overload relay (DB422321_EN)

Fig. G45 – Circuit breaker D provides protection against short-circuit faults as far as and including the load (DB422322_EN)

Fig. G47 – Protection by circuit breaker (DB422323)

Fig. G48 – Protection by aM-type fuses (DB422324)

Fig. G49 – Protection by gG-type fuses (DB422325)

Fig. G50 – Definition of L for a 3-phase 3-wire circuit (DB422326_EN)

Fig. G55 – A poor connection in a series arrangement will leave all downstream appliances unprotected (DB422328_EN)

Fig. G56 – Direct connection of the PEN conductor to the earth terminal of an appliance (DB422329)

Fig. G57 – The TN-C-S scheme (DB422330)

Fig. G61 – PE conductor to the main earth bar in the MLVS (DB422331_EN)

Fig. G63 – Supplementary equipotential conductors (DB422332_EN)

Fig. G64 – Triplen harmonics are in phase and cumulate in the Neutral (DB422346)

Fig. G65 – Load factor of the neutral conductor vs the percentage of 3rd harmonic (DB422347_EN)

Fig. G66 – Compact NSX100 circuit breaker (PB116760_EN)

Fig. G69 – Example of single-line diagram (DB431011_EN)