Exercices Corrigés Interprétation de plans, de schémas et de devis /
canalisations électriques
Électromécanique des Systèmes Automatisées-ESA-OFPPT-PDF
Exercices Corrigés Interprétation de plans, de schémas et de devis / canalisations électriques
ESA-OFPPT-PDF |
A. - The races: Q.C.M. (you must circle the correct answers)
1. - Give two terms that characterize the implementation of
a race.
Rep. : insulator;
composite;
rigid;
smooth;
bendable.
2. - Give in the designation code of the International
Electrotechnical Commission the implication of the
chief figure.
Rep. : small scale temperature of use and installation;
impact resistance ;
crush resistance.
3. - Specify the diameter of a stroke, the designation of
which is as follows: NF-USE 32 IRL 3422
Rep. : 34 mm; 20 mm; 63 mm; 22 mm; 32 mm; 50 mm.
4. - Include in the designation code of the International
Electrotechnical Commission the implication of the letter S.
Resp: surface;
flexible;
spherical.
5. - Give the insignificant radius of curvature of a 25 mm
diameter ICTL channel.
Rep. : 60 mm; 120 mm; 150 mm; 192 mm.
6.- Give the diameter of the IRL channel which is suitable
for passing a circuit of three conductors H07 V-K of 4 mm2,
knowing that the total segment of these three conductors,
including insulation is 45.60 mm2.
Rep. : IRL channel, diameter 16, useful internal segment: 43
mm2;
channel IRL, diameter 20, useful internal segment: 74 mm2;
channel IRL, diameter 25, useful internal segment: 119 mm2.
7.- Give the designation of a metal channel, rigid, smooth,
with an external diameter of 50 mm.
Rep. : NF-USE 50 ICA 3321;
NF-USE 25 CSL 4421;
NF-USE 50 MRL 5557;
NF-USE 20 MRL 5557.
8.- The orange ICTA channel is allowed.
Rep. : in obvious mounting;
in flush mounting;
buried directly in the ground