{"id":1599,"date":"2026-09-24T01:30:00","date_gmt":"2026-09-24T01:30:00","guid":{"rendered":"https:\/\/luliancable.com\/?p=1599"},"modified":"2026-09-28T07:04:52","modified_gmt":"2026-09-28T07:04:52","slug":"how-to-read-cable-designation-codes","status":"publish","type":"post","link":"https:\/\/luliancable.com\/es\/how-to-read-cable-designation-codes\/","title":{"rendered":"How to Read a Chinese Cable Designation: YJV, YJV22, KVV, WDZC Explained"},"content":{"rendered":"
\n
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\u00a701 \u2014 THE CODE<\/p>\n

A Chinese cable designation reads left to right, and every letter changes something physical.<\/h2>\n

Most export buyers meet Chinese designations through a tender: YJV22 8.7\/15 kV 3\u00d7240<\/b>. The number part is easy. The letters carry the construction, and they are not decorative \u2014 each one changes what is inside the cable and how it behaves on site.<\/p>\n<\/div>\n<\/div>\n

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\u00a702 \u2014 LETTER BY LETTER<\/p>\n

The four positions that matter most.<\/h2>\n\n\n\n\n\n\n
Position<\/th>\nLetter<\/th>\nMeaning<\/th>\n<\/tr>\n
Aislamiento<\/td>\nY \/ V \/ Z<\/td>\nY = XLPE, V = PVC, Z = flame-retardant (usually with a following code for the compound)<\/td>\n<\/tr>\n
Conductor \/ filler<\/td>\n(none) \/ T<\/td>\nCopper is normally omitted; L = aluminium conductor<\/td>\n<\/tr>\n
Inner covering \/ screen<\/td>\nV \/ F<\/td>\nV = PVC sheath over the laid-up core; F = flexible variant for specific ranges<\/td>\n<\/tr>\n
Armadura<\/td>\n22 \/ 23 \/ 32 \/ 42<\/td>\n2 = steel tape, 3 = steel wire, 4 = non-magnetic; the second digit is the outer sheath (2 = PVC, 3 = PE)<\/td>\n<\/tr>\n<\/table>\n

So YJV22<\/b> is XLPE insulated, PVC sheathed, steel-tape armoured. YJV23<\/b> is the same cable with a PE sheath \u2014 the right choice where the cable is buried in wet soil, because PE resists moisture better than PVC.<\/p>\n<\/div>\n<\/div>\n

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\u00a703 \u2014 CONTROL AND LSZH<\/p>\n

KVV and WDZC-KYJY decode differently.<\/h2>\n

Control cable uses K for control, then insulation, then shielding and armour: KVV<\/b> is PVC\/PVC, KVVP<\/b> adds a braid screen (P for screened), KVVP2<\/b> a tape screen, KVV22<\/b> steel-tape armour.<\/p>\n

Low-smoke halogen-free control cable reads as a sentence: W<\/b> (no halogen) D<\/b> (low smoke) Z<\/b> (flame-retardant) C<\/b> (C category per the bunched test) \u2014 then K<\/b> control, YJ<\/b> XLPE insulated, Y<\/b> PE sheath. That is WDZC-KYJY, the cable our type-test report covers.<\/p>\n

The designation never tells you the voltage class \u2014 that is always written separately as U\u2080\/U, e.g. 8.7\/15 kV.<\/p>\n<\/div>\n<\/div>\n

\n
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\u00a704 \u2014 FAQ<\/p>\n

Is YJV22 the same as SWA cable?<\/h3>\n

Not exactly. YJV22 is steel-tape armour (STA), which is what most buyers actually need for direct burial. Steel-wire armour (SWA) is YJV32 or YJV33. Many enquiries ask for SWA when the specification really describes STA.<\/p>\n

What does the second digit in 22 \/ 23 mean?<\/h3>\n

The outer sheath material: 2 = PVC, 3 = polyethylene. PE sheathing is the better choice in wet or termite-prone ground.<\/p>\n

Where does the aluminium conductor show up?<\/h3>\n

As an L after the insulation letter: YJLV22 is the aluminium version of YJV22. Copper is the default and is left out of the code.<\/p>\n

See the 6\u201335 kV range<\/a>Control cable range<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"

A Chinese cable designation is a compact specification: insulation, conductor, armour and sheath are coded in order. Learn to decode YJV, YJV22, KVV, KVVP and WDZC-KYJY, and what each letter changes on site.<\/p>","protected":false},"author":1,"featured_media":1283,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-1599","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cable-guides"],"yoast_head":"\nHow to Read Cable Codes: YJV, YJV22, KVV, WDZC | Lulian<\/title>\n<meta name=\"description\" content=\"Decode Chinese cable designations - YJV, YJV22, KVV, WDZC: what each letter means for conductor, insulation, armour and sheath, with ordering examples.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/luliancable.com\/es\/how-to-read-cable-designation-codes\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to Read Cable Codes: YJV, YJV22, KVV, WDZC | Lulian\" \/>\n<meta property=\"og:description\" content=\"Decode Chinese cable designations - 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