Rail Wheel Factory Yelahanka PVC Electrical Tape Tender Bangalore ISI IS 7809 2018 2026

Tender Overview

The Indian Railways unit, Rail Wheel Factory Yelahanka in Bangalore, Karnataka, seeks procurement of Pressure Sensitive Adhesive PVC electrical tapes that are ISI marked to IS 7809 (Part 3/ Sec 1). The requirement specifies MULTI COLORED tapes (RED, YELLOW, BLUE, BLACK, GREEN) in equal quantities, with 5-10 m per roll, 20 mm width, and 25–50 mm core diameter. Tapes must be non-thermosetting adhesive, flame retardant, and tested to IS 7809 standards with NABL or central lab test reports; ISI marking on each roll is mandatory. The scope is supply-only, with option for quantity variation up to 25% during contract execution; delivery timelines remain at the purchaser’s discretion anchored to delivery orders. Distinctive aspects include strict IS 7809 conformance, temperature index of 90°C, dielectric strength up to 40 kV/mm, and insulation resistance ≥ 1.0×10^11 Ω, plus specified adhesion, elongation, and packaging requirements.

Technical Specifications & Requirements

• Product category: Pressure Sensitive adhesive PVC tapes for electrical purpose, ISI marked to IS 7809 (reaffirmed 2018 or later).
• Roll length: 5-10 m per roll (approval needed for deviation).
• Width: 20 mm with tolerance ±1.0 mm.
• Core diameter: 25–50 mm.
• Thickness: 0.12–0.18 mm; high stretch and flame retardant.
• Adhesive & construction: non-thermosetting, rubber/rubber-resin adhesive, chemically stable.
• Flammability: Self-extinguishing; Temperature Index: 90°C max.
• Electrical: Dielectric strength up to 40 kV/mm; withstand up to 1,000 V rms.
• Insulation: ≥ 1.0×10^11 Ω at 27°C in high humidity.
• Adhesion: to steel ≥ 1.6 N/10 mm; to backing ≥ 1.3 N/10 mm.
• Elongation: 150–200%.
• Marking: ISI marking on each roll; test reports from NABL or central labs.
• Color: Multi-colored (Red, Yellow, Blue, Black, Green) in equal quantities.
• Brand/OEM: ISI certified, with test reports aligned to IS 7809.

Terms, Conditions & Eligibility

• EMD/ Bid security: not specified in data; bidders should assume standard EMD as per local practice.
• Delivery terms: quantity may vary by up to 25% during ordering and currency of contract; delivery timeline linked to last date of original delivery order; extended delivery time formula applies with minimum 30 days.
• Payment: supply-only scope; terms to be clarified in tender; ensure compliance with IS 7809 testing and NABL reporting.
• Documentation: OEM authorizations and NABL/central lab test reports; ISI marking proofs; conformity certificates to IS 7809; packaging and labeling requirements.
• Quality & penalties: adherence to IS 7809; ensure self-extinguishing behavior and consistent color batching; ensure core and width tolerances.
• Warranty/AMC: not detailed; bidders should confirm post-delivery support terms in bid.
• Other clauses: option to increase/decrease quantity by Purchaser; compliance with all buyer ATC clauses.