1. Application

    Low-smoke and halogen-free wires and cables can produce very little smoke, and the gas released has no halogen and are non-toxic (with low toxicity). It can reduce damages to apparatus, equipment and humans dramatically and are widely used in hospitals, high buildings, large-scale library, gym, waiting room and other place with high-density population.

    The plastic insulated wires and cables we produced meet the requirements of GB/T 12706-2008, GB 5023-2008, GB/T 9330-2008 and DJ 08-93-2002. Also our products can be categorized into flame-retardant series, fire-resistant series, etc.

2. Code and Description

Code	Description	Flame-retardant Grade
DDZ-VV DDZ-VLV DDZ-VY DDZ-VLY	Low-smoke halogen-free PVC insulated low-smoke low-halogen PVC/PE sheathed flame-retardant power cables	A B C
DDZ-VV22 DDZ-VLV22 DDZ-VV23 DDZ-VLV23	Low-smoke low-halogen PVC insulated steel tape armored low-smoke low-halogen PVC/PE sheathed flame-retardant power cables
DDZ-VV32 DDZ-VLV32 DDZ-VV33 DDZ-VLV33 DDZ-VV42 DDZ-VLV42 DDZ-VV43 DDZ-VLV43	Low-somke low-halogen PVC insulated steel wire armored low-smoke low-halogen PVC/PE sheathed flame-retardant power cables
DDZ-YJ(F)V DDZ-YJ(F)LV	(Irradiated) XLPE insulated low-smoke low-halogen PVC sheathed flame-retardant power cables	A B C
DDZ-YJ(F)V22 DDZ-YJ(F)LV22	(Irradiated) XLPE insulated steel tape armored low-smoke low-halogen PVC sheathed flame-retardant power cables
DDZ-YJ(F)V32 DDZ-YJ(F)LV32 DDZ-YJ(F)V42 DDZ-YJ(F)LV43	(Irradiated) XLPE insulated steel wire armored low-smoke low-halogen PVC sheathed flame-retardant power cables
DDZ-KVV DDZ-KYJ(F)V	Low-smoke low-halogen PVC/(Irradiated) XLPE insulated low-smoke low-halogen PVC sheathed flame-retardant control cables	A B C
DDZ-KVV22 DDZ-KYJ(F)V22	Low-smoke low-halogen PVC/(Irradiated) XLPE insulated steel tape armored low-smoke low-halogen PVC sheathed flame-retardant control cables
DDZ-KVVP DDZ-KYJ(F)VP	Low-smoke low-halogen PVC/(Irradiated) XLPE insulated copper wire screened low-smoke low-halogen PVC sheathed flame-retardant control cables
DDZ-KVVP2 DDZ-KYJ(F)VP2	Low-smoke low-halogen PVC/(Irradiated) XLPE insulated steel tape screened low-smoke low-halogen PVC sheathed flame-retardant control cables
DDZ-KVV32 DDZ-KYJ(F)V32	Low-smoke low-halogen PVC/(Irradiated) XLPE insulated steel wire armored low-smoke low-halogen PVC sheathed flame-retardant control cables
DDZ-BV DDZ-BLV	Low-smoke low-halogen PVC insulated flame-retardant electric wire	A B C
DDZ-BVV DDZ-BLVV	Low-smoke low-halogen PVC insulated sheathed flame-retardant electric wire
DDZ-BVR	Low-smoke low-halogen PVC insulated flame-retardant flexible electric wire
WDZ-YJ(F)E WDZ-YJ(F)LE WDZ-YJ(F)Y WDZ-YJ(F)LY	(Irradiated) XLPE insulated low-smoke free-halogen flameretardant polyolefin wore wire power cables	A B C
WDZ-YJ(F)E23 WDZ-YJ(F)LE23 WDZ-YJ(F)Y23 WDZ-YJ(F)LY23	(Irradiated) XLPE insulated steel tape armored low-smoke freehalogen flame-retardant polyolefin sheathed power cables
WDZ-YJ(F)E33 WDZ-YJ(F)LE33 WDZ-YJ(F)Y33 WDZ-YJ(F)LY33 WDZ-YJ(F)E43 WDZ-YJ(F)LE43 WDZ-YJ(F)Y43 WDZ-YJ(F)LY43	(Irradiated) XLPE insulated steel wire armored low-smoke freehalogen flame-retardant polyolefin sheathed power cables
WDZ-KYJ(F)E WDZ-KYJ(F)Y	(Irradiated) XLPE insulated low-smoke free-halogen flameretardant polyolefin sheathed control cables	A B C
WDZ-KYJ(F)E23 WDZ-KYJ(F)Y23	(Irradiated) XLPE insulated steel tape armored low-smoke freehalogen flame-retardant polyolefin sheathed control cables
WDZ-KYJ(F)EP WDZ-KYJ(F)YP	(Irradiated) XLPE insulated copper wire screened low-smoke f ree-halogen flame-retardant polyolefin sheathed control cables
WDZ-KYJ(F)EP2 WDZ-KYJ(F)YP2	(Irradiated) XLPE insulated copper tape screened low-smoke freehalogen flame-retardant polyolefin sheathed control cables
WDZ-KYJ(F)E33 WDZ-KYJ(F)Y33	(Irradiated) XLPE insulated steel wire armored low-smoke free-halogen flame-retardant polyolefin sheathed control cables	B C D
WDZ-BYJ(F) WDZ-BLYJ(F) WDZ-BY WDZ-BLY	(Irradiated) cross-linked type/non-cross-linked type low-smoke free-halogen flame-retardant polyolefin insulated electric wires
WDZ-BYJ(F)E WDZ-BLYJ(F)E WDZ-BYE WDZ-BLYE	(Irradiated) cross-linked type/non-cross-linked type low-smoke freehalogen flame-retardant polyolefin insulated low-smoke free-halogen flame-retardant polyolefin sheathed electric wires
WDZ-BYJ(F)R WDZ-BYR	(Irradiated) cross-linked type/non-cross-linked type low-smoke freehalogen flame-retardant polyolefin insulated flexible electric wires
WDZN-YJ(F)E WDZN-YJ(F)Y	Copper core (Irradiated) XLPE insulated low-smoke free-halogen flame-retardant polyolefin sheathed fire resistant power cables	A B C
WDZN-YJ(F)E23 WDZN-YJ(F)Y23	Copper core (Irradiated) XLPE insulated steel tape armored low-smoke free-halogen flame-retardant polyolefin sheathed fire resistant power cables
WDZN-YJ(F)E33 WDZN-YJ(F)Y33 WDZN-YJ(F)E43 WDZN-YJ(F)Y43	Copper core (Irradiated) XLPE insulated steel wire armored low-smoke free-halogen flame-retardant polyolefin sheathed fire resistant power cables	A B C
WDZN-KYJ(F)E WDZN-KYJ(F)Y	(Irradiated) XLPE insulated low-smoke free-halogen flameretardant polyolefin sheathed fire resistant control cables
WDZN-KYJ(F)E23 WDZN-KYJ(F)Y23	(Irradiated) XLPE insulated steel tape armored low-smoke free-halogen flame-retardant polyolefin sheathed fire resistant control cables
WDZN-KYJ(F)EP WDZN-KYJ(F)YP	(Irradiated) XLPE insulated copper thread mesh screened low-smoke freehalogen flame-retardant polyolefin sheathed fire resistant control cables
WDZN-KYJ(F)EP2 WDZN-KYJ(F)YP2	(Irradiated) XLPE insulated copper tape screened low-smoke free-halogen flame-retardant polyolefin sheathed fire resistant control cables
WDZN-KYJ(F)E33 WDZN-KYJ(F)Y33	(Fu Zhao) XLPE insulated, steel wire armored low smoke and non halogen Flame retardant polyolefin sheathed fire-resistant control cable
WDZN-BYJ(F) WDZN-BY	(Irradiated) cross-linked type/non-cross-linked type low-smoke free-halogen flame-retardant polyolefin insulated fire resistant electric wires	B C D
WDZN-BYJ(F)E WDZN-BYE	(Irradiated) cross-linked type/non-cross-linked type low-smoke free-halogen flameretardant polyolefin insulated low-smoke free-halogen flame-retardant polyolefin sheathed fire resistant electric wires
WDZN-BYJ(F)R WDZN-BYR	(Irradiated) cross-linked type/non-cross-linked type low-smoke free-halogen flame-retardant polyolefin insulated low-smoke free-halogen flameretardant polyolefin sheathed fire resistant flexible electric wires

3. Grade-classification & Application
1) Low-smoke free/low-halogen model divides into four kinds:special class,first class,secondclass,third class according to the propety, fire damage and evacuation & extinguishment difficulty. Meanwhile, it also complies with the requirement of Table3-2
2) When they are laying in colligation, the low-smoke free/low-halogen wires and cablesshould be flame-retardant types that grades comply with Table3-3 and Table3-4. If the location needs integrated lines and constant electricity under the outside fire, they should be fire resistant types.

Table2: the grade choice to the flame-retardant property of electric wires

Applicable place	Sectional area	Flame-retardant grade
Special grade	50mm2 and above	Bgrade
First grade	35mm2and above	Cgrade
	50mm2and above	Cgrade
	35mm2and above	Dgrade
Second grade, third grade	All area	Dgrade

Table 3: the grade choice to the flame-retardant property of cables

Applicable place	Flame-retardancygrade
Special grade	Agrade
First grade	Bgrade
Second grade, third grade	Cgrade

4. Sectional Drawing

1) conductor      2) refractory insulating layer       3) XLPE Insulation      4) Separator      5) Inner Covering      6) Armor      7) Oversheath