diff --git a/elements/10_electric/11_singlepole/140_connectors&plugs/qet_directory b/elements/10_electric/11_singlepole/140_connectors&plugs/qet_directory
index db8d9c1bc..df05679dc 100644
--- a/elements/10_electric/11_singlepole/140_connectors&plugs/qet_directory
+++ b/elements/10_electric/11_singlepole/140_connectors&plugs/qet_directory
@@ -2,6 +2,7 @@
     <names>
         <name lang="en">Connectors and plugs</name>
         <name lang="fr">Connecteurs et prises</name>
+        <name lang="pl">Złącza wtykowe</name>
         <name lang="de">Stecker und Buchsen</name>
     </names>
 </qet-directory>
diff --git a/elements/10_electric/11_singlepole/200_fuses&protective_gears/qet_directory b/elements/10_electric/11_singlepole/200_fuses&protective_gears/qet_directory
index 18d4317db..7dd7cf16e 100644
--- a/elements/10_electric/11_singlepole/200_fuses&protective_gears/qet_directory
+++ b/elements/10_electric/11_singlepole/200_fuses&protective_gears/qet_directory
@@ -2,6 +2,7 @@
     <names>
         <name lang="en">Fuses and protective gears</name>
         <name lang="fr">Fusibles et protections</name>
+        <name lang="pl">Łączniki i zabezpieczenia</name>
         <name lang="de">Sicherungen und Schutzeinrichtungen</name>
     </names>
 </qet-directory>
diff --git a/elements/10_electric/11_singlepole/330_transformers&power_supplies/qet_directory b/elements/10_electric/11_singlepole/330_transformers&power_supplies/qet_directory
index a951aed33..b42c4d43d 100644
--- a/elements/10_electric/11_singlepole/330_transformers&power_supplies/qet_directory
+++ b/elements/10_electric/11_singlepole/330_transformers&power_supplies/qet_directory
@@ -2,6 +2,7 @@
     <names>
         <name lang="en">Transformators and power supplies</name>
         <name lang="fr">Transformateurs et alimentations</name>
+        <name lang="pl">Transformatory i zasilacze</name>
         <name lang="de">Transformatoren und Versorgungen</name>
     </names>
 </qet-directory>
diff --git a/elements/10_electric/11_singlepole/340_converters&inverters/qet_directory b/elements/10_electric/11_singlepole/340_converters&inverters/qet_directory
index 683acddcd..6bfb5d8ee 100644
--- a/elements/10_electric/11_singlepole/340_converters&inverters/qet_directory
+++ b/elements/10_electric/11_singlepole/340_converters&inverters/qet_directory
@@ -2,6 +2,7 @@
     <names>
         <name lang="en">Converters and inverters</name>
         <name lang="fr">Convertisseurs et variateurs</name>
+        <name lang="pl">Przetworniki i przekształtniki</name>
         <name lang="de">Umformer und Umrichter</name>
     </names>
 </qet-directory>
diff --git a/elements/10_electric/11_singlepole/392_generators&sources/10_generators/qet_directory b/elements/10_electric/11_singlepole/392_generators&sources/10_generators/qet_directory
index cb31c57f4..aaed90ef0 100644
--- a/elements/10_electric/11_singlepole/392_generators&sources/10_generators/qet_directory
+++ b/elements/10_electric/11_singlepole/392_generators&sources/10_generators/qet_directory
@@ -2,6 +2,7 @@
     <names>
         <name lang="en">Generators</name>
         <name lang="fr">Générateurs</name>
+        <name lang="pl">Generatory</name>
         <name lang="de">Generatoren</name>
     </names>
 </qet-directory>
diff --git a/elements/10_electric/11_singlepole/392_generators&sources/qet_directory b/elements/10_electric/11_singlepole/392_generators&sources/qet_directory
index d6a2eb90e..651322e38 100644
--- a/elements/10_electric/11_singlepole/392_generators&sources/qet_directory
+++ b/elements/10_electric/11_singlepole/392_generators&sources/qet_directory
@@ -2,6 +2,7 @@
     <names>
         <name lang="en">Generators and sources</name>
         <name lang="fr">Générateurs et sources</name>
+        <name lang="pl">Źródła zasilania</name>
         <name lang="de">Generatoren und Quellen</name>
     </names>
 </qet-directory>
diff --git a/elements/10_electric/11_singlepole/395_electronics&semiconductors/qet_directory b/elements/10_electric/11_singlepole/395_electronics&semiconductors/qet_directory
index b86e4645e..65d456f28 100644
--- a/elements/10_electric/11_singlepole/395_electronics&semiconductors/qet_directory
+++ b/elements/10_electric/11_singlepole/395_electronics&semiconductors/qet_directory
@@ -2,6 +2,7 @@
     <names>
         <name lang="en">Electronics and semiconductors</name>
         <name lang="fr">Electronique et semi-conducteurs</name>
+        <name lang="pl">Elektronika i półprzewodniki</name>
         <name lang="de">Elektronik und Halbleiter</name>
     </names>
 </qet-directory>