SIPN-4

Flame-retardant self-supporting wire without a messenger element

SIPn-4 is a version of SIP-4 with flame-retardant insulation. All cores are current-carrying, of aluminium alloy, without a separate messenger element; the insulation is flame-retardant UV-stabilised cross-linked polyethylene. It is used for branch lines from overhead lines to building service entrances and for installation along building walls where enhanced fire safety requirements apply.

Voltage 0.66/1 kV

Conductor Al alloy

Cores 2 or 4

Feature Flame-retardant

Request a price Size table

SIPn-4 PRODUCT RANGE

A version of SIP-4 with flame-retardant insulation.

Type / size	Cores	Cross-section, mm²	Outer Ø, mm	Weight, kg/km
SIPn-4 2×16	2	16	14	150
SIPn-4 2×25	2	25	16	220
SIPn-4 4×16	4	16	19	290
SIPn-4 4×25	4	25	22	415
SIPn-4 4×35	4	35	24.5	545
SIPn-4 4×50	4	50	27	720
SIPn-4 4×70	4	70	30	970
SIPn-4 4×95	4	95	34	1250
SIPn-4 4×120	4	120	37	1550
SIPn-4 4×150	4	150	40	1850

Outer diameter and weight are given as typical values per GOST 31946-2012. Exact TCG factory parameters are given in the product datasheet.

Description of SIPn-4 wire

SIPn-4 is a modification of SIP-4 with flame-retardant insulation. The index “n” in the designation per GOST 31946-2012 (Amendment No. 1) means that the UV-stabilised cross-linked polyethylene of the insulation is made of a flame-retardant compound. The conductors, cross-sections and mechanical characteristics are the same as for SIP-4: the maximum conductor temperature is +90°C in normal operation and +250°C under short circuit.

Without a separate messenger element, like SIP-4. It is used for branch lines from overhead lines and for installation along building walls. Flame retardancy is particularly important at service entrances and on facades, where the wire runs close to building structures.

The wire is intended for the same lines as SIP-4, but with enhanced fire safety requirements.

Applications

Branch lines from overhead lines to building service entrances

Installation along building walls and facades

Power supply to residential and public buildings with enhanced fire safety requirements

Replacement of SIP-4 where flame retardancy is required

Facilities with high occupancy

Construction

Conductors

Stranded, compacted, of aluminium alloy.

Insulation

Flame-retardant UV-stabilised cross-linked polyethylene (XLPE). UV-resistant.

Stranding

The cores are stranded together. There is no messenger element.

Cross-section of SIPn-4 (4-core) – cores in flame-retardant insulation, without a messenger element

Technical specifications

Rated voltage 0.66/1 kV

Conductor material Aluminium alloy

Max. conductor t° (continuous) +90°C

Insulation Flame-retardant UV-stabilised cross-linked PE

Number of cores 2 or 4

Cross-sections 16 – 150 mm²

Standard GOST 31946-2012

Detailed specifications are given in the TCG datasheet

Operating conditions

Installation temperature not below -20°C

Operating temperature -60°C … +50°C

Max. conductor t° (continuous) +90°C

Max. conductor t° (short circuit) +250°C

Min. bending radius 10 × Ø

Service life at least 40 years

Warranty 5 years

Climatic category UHL

SIPN-4