Industrial Catalog

Accessories

Technical components and spare parts for hydraulic systems.

Accessories · Specification range

A submersible electrical cable is a multi-conductor cable specifically designed to power pumps and motors operating fully submerged in water, where a conventional electrical cable would fail through insulation degradation. JOVAL stocks in Portugal a range of cables built in annealed copper with a special 90 °C rated submersible insulation, compatible with Franklin Electric and JOVAL motors installed in the submersible pumps range.

Material
Annealed copper
Insulation
Special submersible, 90 °C rated
Compatibility
Franklin Electric + JOVAL motors
Standards
PSC · 3 % voltage drop at 50 °C
Flanges
NEMA 4" and 6"
Variants
AISI 304 · AISI 316 (aggressive water)

Accessories

1 product Accessories

Accessories · Technical Overview

The range covers cables in several conductor counts and cross-sections, matched to single-phase (3-wire) and three-phase (4-wire) motors on NEMA 4" and 6" flanges, with AISI 304 and AISI 316 stainless variants for aggressive or brackish water. Cable cross-section is sized to the PSC standard, with a limit of 3 % voltage drop at 50 °C ambient — so cable length and motor power are the two parameters that drive the choice.

Beyond the cables themselves, a complete submersible motor installation needs heat-shrink watertight connectors, suspension clamps, stainless-steel cable ties and steel banding to secure the cable to the pump column — JOVAL stocks these complements permanently. To pick the matching motor, see the Submersible Motors category.

Frequently asked questions

  1. Why do submersible motors need a special cable?

    Because a conventional electrical cable cannot withstand prolonged immersion: water penetrates the insulation and causes ground leakage and short circuits. Submersible cables have cross-linked polyethylene insulation rated for 90 °C and a watertight jacket, holding their dielectric properties through years of full immersion.

  2. How do I size the cable for a submersible motor?

    Using the 3 % voltage drop rule at 50 °C ambient, which depends on the motor's rated current and the cable length from the control panel to the pump. Manufacturers publish tables that cross-reference power, distance and minimum cross-section — JOVAL makes these tables available to installers.

  3. Are the cables compatible with Franklin and JOVAL motors at the same time?

    Yes. The range covers standard NEMA 4" and 6" flanges in canned and rewindable variants, common to both Franklin Electric and JOVAL motors. The difference is in the connector configuration, not in the nature of the cable itself.

  4. What variants exist for aggressive or brackish water?

    The AISI 304 and AISI 316 stainless-steel variants are intended for chemically aggressive water, off-neutral pH, or significant saline content. The choice between the two stainless grades depends on the chemical analysis of the source water.

Technical Support

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Our technical team can help select the right equipment for your installation. Contact us with your project details — borehole depth, required flow rate and application.

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