Cable Terminal Protector for RMU - Elbow Type (GTPE-500)

About Cable Terminal Protector for RMU - Elbow Type (GTPE-500)

In the cable-entry box of a ring main unit the phase-to-phase clearance is small, and air alone does not always give enough insulation. Humidity, dust, reptiles, rodents and birds can then trigger a flashover or a short circuit across the terminations. Gala's GTPE-500 cable terminal protector puts an insulating barrier around each terminal.

It is a one-piece moulded elastomer elbow with a C-type interface. It fits over the RMU's epoxy bushing and the cable termination and is closed at the front by a separate insulating plug. With the RMU de-energised and locked out, the installer cleans the termination, lug and bushing, greases the protector's inner sealing surface and the bushing with silicone grease, pushes the protector onto the bushing, feeds the cable and lug up through the lower leg, bolts the lug to the bushing through the front opening and presses the plug in until flush. The plug can be removed again, so the joint can be re-opened, voltage-tested directly and the protector re-used.

One size takes cables from 25 to 400 sq mm, including sector-shaped cores, and suits RMUs with compact C-type bushings for 11 kV systems. The moulded material is UV and track resistant, and every protector is factory tested. The GTPE-500 is an insulating barrier, not a touch-proof (screened) connector.

Manufactured by Gala in India. Datasheet and size selection on request.

Specifications

• Brand: Gala
• Product type: Cable terminal protector, elbow (right angle) boot with insulating plug
• Material: Moulded elastomeric rubber
• Colour: Grey
• Voltage rating: 11 kV systems (12 kV equipment)
• Operating temperature: -40 deg C to +115 deg C continuous
• Size range: Cable 25 to 400 sq mm, round or sector-shaped cores; one size
• Adhesive / sealant: Silicone grease on the sealing surfaces
• Application: Insulating cable terminations on C-type bushings in RMU cable boxes with limited clearance
• Installation: Push-on, cold applied; lug bolted through the front opening; insulating plug pressed in; re-openable
• Country of origin: India
• Power frequency withstand: 28 kV for 1 min
• Touch proof: No

Sizes

• GTPE-500 | elbow boot with insulating plug | for C-type RMU bushings | cable 25 to 400 sq mm | 11 kV systems (12 kV equipment)

Applications: Ring main unit manufacturers, compact secondary substations, electricity distribution utilities, switchgear manufacturers, EPC and electrical contractors, industrial and commercial MV installations