Two standard series of lattice masts are manufactured for 30, 45 and 66 kV lines.
They are made with corner profiles of hot-dip galvanised steel and are supplied unassembled in packets weighing a maximum of 800 kg, together with the corresponding screws and bolts.



Designation of masts
Masts are designated using six numbers, which mean the following:

1st number: 
4: 30 kV line 
5: 45 kV line
6: 66 kV line

2nd number: 
1: simple circuit
2: double circuit

3rd number: 
E: hexagon layout
T: triangle layout
D: branching
S: sectionaliser
W: layout for switch

4th number: This is the mast series
1: monobloc mas
2: steel lattice spaced legs mast

5th number : This corresponds to a sequential order according to rigidity 

6th number: 
0: with layout for the ground cable (with horn).
1: without layout for the ground cable (without horn).
8: according to the regulations of the 2008 RLAT.


The height of the mast is given below stating the last base section mounted.

Examples: 

Monobloc mast : 52E130/T4

Spaced legs mast: 52E230/B18

Line voltageDesignation of masts
Series
Designation of masts
Simple circuit
Designation of masts
Double circuit
Designation of masts
Avifauna
Designation of masts
Derivations
Designation of masts
Transitions
30 kV1(*)42E121
30 kV1(*)42E131
30 kV1(*)42E141
30 kV1(*)42E151
30 kV1(*)42E161
30 kV1(*)42E171
30 kV2(*)(**)
45 kV1(*)52E120
45 kV1(*)52E130
45 kV1(*)52E140
45 kV1(*)52E150
45 kV1(*)52E160
45 kV1(*)52E170
45 kV2(*)52E220
45 kV2(*)52E230
45 kV2(*)52E240
66 kV161T12862E12862A128
66 kV161T13862E13862A13861D178-61D171
66 kV161T14862E14862A14862D178-62D171
66 kV161T15862E15862A15862H178-62H171
66 kV161T16862E16862A168
66 kV161T17862E17862A178
66 kV261T22862E22861D248-61D241
66 kV261T23862E23862D248-62D24161S238
66 kV262E24862H248-62H24161S248
MAST DIAGRAMS – 30, 45 Y 66 kV. SERIE 1.
MAST DIAGRAMS – 30, 45 Y 66 kV. SERIE 2.