3M 11KV 3C*400SQMM INDOOR TERMINATION KIT

3M 11KV 3C*400SQMM INDOOR TERMINATION KIT Specification

Material
PVC

Application
Electrical Fitting

Surface Treatment
Coated

Voltage
11 Volt (v)

Design
Standard

Color
Red

3M 11KV 3C*400SQMM INDOOR TERMINATION KIT Trade Information

Minimum Order Quantity
1 Piece

Payment Terms
Cash in Advance (CID)

Supply Ability
500 Pieces Per Month

Delivery Time
2 Days

Main Domestic Market
All India

About 3M 11KV 3C*400SQMM INDOOR TERMINATION KIT

3M 11 kV, 3-core 400 sq mm indoor termination kit (cold-shrink / silicone style). Because 400 sq mm is a large cross-section, the actual 3M variant must be verified with the datasheet or supplier.

Purpose & Application

To terminate a 3-core medium voltage (MV) polymeric cable (XLPE, EPR etc.) of cross-section 400 sq mm in indoor / enclosed installations (such as inside switchgear rooms, cable galleries, indoor cable junction boxes).
Provide key functions:
Insulation covering the cable end to termination point
Electric field / stress control (especially near the shield cutback zone)
Metallic screen / shield bonding and continuity to ground
Void-free sealing and protection from moisture / air ingress
Mechanical interface to lugs, connectors, busbars, etc.
Long-term electrical, thermal, mechanical reliability

Because this is a cold-shrink / silicone design, installation does not require heat or flame. The kit body is supplied in expanded (pre-stretched) form; after positioning on the cable, the internal core or support is removed, causing the silicone body to contract and grip the insulation, ensuring tight, void-free contact.

Typical Kit Components / Contents

A 400 sq mm indoor termination kit of this type would typically include:

Pre-stretched / cold-shrink silicone rubber termination body with built-in stress control / grading inserts (high dielectric constant or Hi-K sleeves)
Breakout / trifurcation boots (cold-shrink style) to split the three cores downstream of the main termination body
Re-jacketing / insulating sleeves to cover trimmed insulation ends or rebuild transitions
Sealing / mastic compounds, silicone grease, void-filling compounds and tapes to ensure void-free contact and moisture sealing
Constant-force springs / bonding springs to reliably connect the cables metallic shield / screen to the termination / ground point
Copper shield braid / tapes / foil / screening elements to provide shield continuity and electromagnetic compatibility
Outer jacket restoration sleeves or jackets to restore the outer cable jacket where trimmed
Cleaning wipes, masking tape, installation tools, instruction manual

Key Electrical & Mechanical & Performance Characteristics (Typical / Expected)

Below are approximate / design-level parameters (to be confirmed in your specific 3M variant datasheet):

Feature	Typical / Expected Value / Range
Voltage class	11 kV (often designed for 12 kV U class)
Cable size / range	400 sq mm nominal (kit might cover a broader band, e.g. 300500 sq mm)
Insulation outer diameter (OD) range	Must accommodate the insulation + shield OD of that size cable (for a 400 sq mm cable, OD might be substantial, e.g. 3050 mm depending on design)
Stress control / field grading	High-dielectric inserts, grading sleeves, smooth transition design near shield cutback to mitigate field intensification
Dielectric / insulation body	Silicone / elastomer (cold-shrink type), contracting to conform to the insulation surface, providing void-free insulation
Sealing & moisture protection	Mastic, silicone grease, tapes, void-filling compounds and sealing tapes to prevent air gaps / moisture ingress
Shield / screen continuity	Bonding / constant-force springs, copper braid / screening elements to ground the metallic screen reliably
Creepage & clearance distances	Designed to meet required creepage / clearance distances as per indoor medium-voltage termination standards
Impulse / switching stress capability	Must meet systems lightning / switching impulse stress levels for 11 kV systems
Operating / ambient temperature	Installation & service ambient range (often e.g. 20 C to +50 C or similar)
Shelf life / storage	Usually 23 years when stored within specified temperature range (e.g. 40 C to +50 C)
Standards compliance	Should comply with MV termination standards like IEC 60502-4, HD 629 / HD 620, or equivalent local / regional standards