Index: branches/5.2.x/units/shipping_quote_engines/shipping_quote_engine.php
===================================================================
--- branches/5.2.x/units/shipping_quote_engines/shipping_quote_engine.php
+++ branches/5.2.x/units/shipping_quote_engines/shipping_quote_engine.php
@@ -187,23 +187,40 @@
 	/**
 	 * Loads properties of shipping quote engine
 	 *
+	 * @return void
 	 */
-	function initProperties()
+	protected function initProperties()
 	{
-		$sql = 'SELECT Properties, FlatSurcharge, PercentSurcharge
-				FROM ' . $this->Application->getUnitOption('sqe', 'TableName') . '
-				WHERE LOWER(ClassName) = ' . $this->Conn->qstr( strtolower( get_class($this) ) );
-		$data = $this->Conn->GetRow($sql);
-
-		if (is_array($data)) {
-			$properties = $data['Properties'] ? unserialize($data['Properties']) : Array ();
-			$properties['FlatSurcharge'] = $data['FlatSurcharge'];
-			$properties['PercentSurcharge'] = $data['PercentSurcharge'];
+		$cache_key = 'shipping_quote_engines_data[%SqeSerial%]';
+		$cache_value = $this->Application->getCache($cache_key);
 
-			$this->properties = $properties;
+		if ( $cache_value === false ) {
+			$this->Conn->nextQueryCachable = true;
+			$sql = 'SELECT Properties, FlatSurcharge, PercentSurcharge, LOWER(ClassName) AS SQEKey
+					FROM ' . $this->Application->getUnitOption('sqe', 'TableName') . '
+					WHERE Status = ' . STATUS_ACTIVE;
+			$cache_value = $this->Conn->Query($sql, 'SQEKey');
+
+			foreach ( $cache_value as $sqe_key => $sqe_data ) {
+				$properties = $sqe_data['Properties'] ? unserialize($sqe_data['Properties']) : array();
+				$properties['FlatSurcharge'] = $sqe_data['FlatSurcharge'];
+				$properties['PercentSurcharge'] = $sqe_data['PercentSurcharge'];
+
+				$cache_value[$sqe_key]['Properties'] = $properties;
+				unset($cache_value[$sqe_key]['FlatSurcharge'], $cache_value[$sqe_key]['PercentSurcharge']);
+			}
+
+			$this->Application->setCache($cache_key, $cache_value);
+		}
+
+		$sqe_key = strtolower(get_class($this));
+
+		if ( array_key_exists($sqe_key, $cache_value) ) {
+			$this->properties = $cache_value[$sqe_key]['Properties'];
 		}
 		else {
-			$this->properties = Array ();
+			$this->properties = array();
 		}
 	}
-}
\ No newline at end of file
+
+}