Max Temperature: 90☌ / 194☏ emergency overload of 130☌ / 266☏.Primary insulation for splices up to 600V. 3M Scotch 2228 Tape Application: Highly conformable, super stretchy in all weather applications resists UV rays, abrasion, corrosion, alkalies and acids.Continue electrostatic shielding across splice. 3M Scotch 24 Tape Application: All metal open weave shielding braid, conformable, temperature stable.Pictured below is a Prysmian (P) TEOF F-RFOU P1/P8 VFD 1.8/3kV 3X150+3G35mm2-3-22 2013 cable – the cable outer sheath has been clearly damaged.Ī recommended cable repair solution is to remove the outer VFD cable jacket 200mm each side of the damage so a confident and accurate assessment of the extent of cable damage can be ascertained.Īssuming cable damage is limited to the sheath and not caused impact into the cable wire armour or braid then a simple cable repair can be made using 3M Scotch 24 copper mesh shielding tape, 3M Scotch 2228 rubber mastic sealing tape and then cable sheath re-instatement using 3M HDCW heat shrink wrap-around cable repair sleeve. Why High Performance VFD Cable Is Important Here, we present a simple but effective method of repairing cable sheath damage to VFD cables using cable repair tapes manufactured by 3M Electrical.
This damage can cause failure of the entire drive system, resulting in costly production downtime.
This high voltage can cause corona discharges to occur between the conductors of conventional cables, causing damage not only to the cabling itself, but also to the motors, bearings, drives and related equipment. Variable-frequency AC motor drive output cables are subject to harsh operating settings characterised by high voltage spikes, high noise levels and adverse environmental conditions during normal service conditions.Ĭonsequently, VFD cables must conduct not only the overall high power levels of the pulse-width modulated (PWM) signals but also the extremely high voltage which can occur when standing waves develop on the conductors. Thorne & Derrick International, based in the UK, are Specialist Distributors of cable repair products used to re-instate damaged cable sheaths and jackets where the extent of damage to the cable does not necessitate the need to carry out a cable joint to the section of compromised cable.īasically, VFD cables distribute electrical power from AC drive systems to AC motors.