{"id":5824,"date":"2026-09-27T08:47:22","date_gmt":"2026-09-27T05:47:22","guid":{"rendered":"https:\/\/www.etkkablo.com\/en\/?p=5824"},"modified":"2026-09-08T09:12:06","modified_gmt":"2026-09-08T06:12:06","slug":"liycy-vs-liyy-lihch-lihh","status":"publish","type":"post","link":"https:\/\/www.etkkablo.com\/en\/blog\/liycy-vs-liyy-lihch-lihh\/","title":{"rendered":"LIYCY vs LIYY vs LIHCH vs LIHH: Signal Control Cable Comparison"},"content":{"rendered":"\n

Choosing between LIYCY<\/a> vs LIYY<\/a> cable<\/strong> and the halogen-free LIHCH and LIHH alternatives becomes much easier once the specification is divided into two decisions: electromagnetic screening and cable material.<\/p>\n\n\n\n

LIYY is an unscreened PVC signal and control cable. LIYCY uses a similar PVC-based construction but adds a tinned-copper braid screen for improved electromagnetic compatibility. Meanwhile, LIHH<\/a> replaces the PVC insulation and sheath system with halogen-free materials while remaining unscreened. LIHCH<\/a> combines both requirements by using halogen-free materials together with a tinned-copper braid screen.<\/p>\n\n\n\n

Therefore, none of the four cables should automatically be considered the \u201cbest\u201d option. The correct construction depends on the electrical-noise environment, fire and smoke requirements, installation location, signal sensitivity and project specification.<\/p>\n\n\n\n

Quick answer:<\/strong> Choose LIYY for general signal and control circuits where EMI exposure is low and PVC is acceptable. Choose LIYCY where the same type of signal requires copper-braid screening. Select LIHH when the project requires halogen-free, low-smoke materials but does not need a metallic screen. Finally, choose LIHCH when both electromagnetic screening and halogen-free construction are required.<\/p>\n\n\n\n

LIYCY vs LIYY vs LIHCH vs LIHH at a Glance<\/h2>\n\n\n\n
Characteristic<\/th>LIYY<\/th>LIYCY<\/th>LIHH<\/th>LIHCH<\/th><\/tr><\/thead>
Conductor<\/td>Class 5 flexible copper<\/td>Class 5 flexible copper<\/td>Class 5 flexible copper<\/td>Class 5 flexible copper<\/td><\/tr>
Insulation<\/td>PVC<\/td>PVC<\/td>Halogen-free<\/td>Halogen-free<\/td><\/tr>
Screen<\/td>No<\/td>Tinned copper braid<\/td>No<\/td>Tinned copper braid<\/td><\/tr>
Outer sheath<\/td>PVC<\/td>PVC<\/td>Halogen-free<\/td>Halogen-free<\/td><\/tr>
EMI protection<\/td>Limited by unscreened construction<\/td>Yes<\/td>Limited by unscreened construction<\/td>Yes<\/td><\/tr>
Halogen-free<\/td>No<\/td>No<\/td>Yes<\/td>Yes<\/td><\/tr>
Typical selection logic<\/td>General low-noise signal circuits<\/td>EMI-sensitive signal circuits<\/td>Low-smoke halogen-free environments<\/td>EMI-sensitive + halogen-free environments<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

This creates a simple selection matrix.<\/p>\n\n\n\n

LIYY = PVC + no screen.<\/strong><\/p>\n\n\n\n

LIYCY = PVC + copper-braid screen.<\/strong><\/p>\n\n\n\n

LIHH = halogen-free + no screen.<\/strong><\/p>\n\n\n\n

LIHCH = halogen-free + copper-braid screen.<\/strong><\/p>\n\n\n\n

Consequently, screening and fire-material strategy can be selected independently rather than treating all four product codes as unrelated cables.<\/p>\n\n\n\n

What Is LIYY Signal Control Cable?<\/h2>\n\n\n\n

LIYY<\/strong> is a flexible multicore signal and control cable using PVC insulation and a PVC outer sheath without a metallic screen.<\/p>\n\n\n\n

A typical construction includes:<\/p>\n\n\n\n