<?php
$resultArray = ElementTable::getList([
    'select' => ['PROPERTY_ENUMERATION.VALUE'],
    'filter' => ['IBLOCK_ID' => 1, "IBLOCK_SECTION_ID" => 1, 'ACTIVE'=>'Y'],
    'runtime' => [
        new Reference(
            'ELEMENT_PROPERTY',
            ElementPropertyTable::class,
            Join::on('this.ID', 'ref.IBLOCK_ELEMENT_ID')
        ),
        new Reference(
            'PROPERTY_ENUMERATION',
            PropertyEnumerationTable::class,
            Join::on('this.ELEMENT_PROPERTY.VALUE', 'ref.ID')
        ),
    ],
])->fetchAll();