Scope of application and requirements of the cable

ZMS Cable is a professional and serious wires and cables manufacturer with a strict quality control system fully guaranteeing the quality of our wires and cables. 

This article is about the inspection procedure for cabling.

1. Applicable Scope

This procedure is applicable for process inspection during the cabling procedure.

2. Reference Documents

For any reference documents, just note the date of the applicable version of this document. 

For undated references, the latest edition (including any amendments) applies to this document.

GB/T 5023 PVC insulated cable with rated voltage 450/750V and below

JB/T 8734 PVC insulated cable and wire and flexible wire with rated voltage 450/750V and below.

3. Quality requirements

3.1 Cabling direction

The cabling direction shall comply with requirements in the process documents, usually the outermost layer of the cable into the right while the adjacent layer stranded twisted in the opposite

3.2 Core arrangement

3.2.1 Number Identification

Insulated cores identified by number should arrange as per 1# from the inner layer to the outer in clockwise order.

3.2.2 Color identification

3.2.2.1 The core arrangement order for multi-cores cable when cabling should be as per the below rules:

Two-cores cable: Red, Blue

Three-cores cable: Yellow, Green, Red

Four-cores cable: Yellow, Green, Red, Blue

Five-cores cable: Yellow, Green, Red, Blue, Black

3.2.2.2 For PVC insulated cables with rated voltage 450/750V and below (Executive Standard: GB / T 5023), the insulated core colors and arrangement of the order shall meet the following requirements

Single core and two-cores cable: No preferred chromatographic but should avoid Red, White, Yellow, or Green

Three-cores cable: Yellow/Green, Blue, Brown, or Brown, Black, Grey

Four-cores cable: Yellow/Green, Brown, Black, Grey or Blue, Brown, Black, and Grey

Five-cores cable: Yellow/Green, Blue, Brown, Black, Grey or Blue, Brown, Black, Grey, and Black

3.2.2.3 For PVC insulated cables and wires, flexible wires with rated voltage 450/750V and below (Executive Standard: JB 8734), the insulated core colors and arrangement of the order shall meet the following requirements

Single core and two-cores cable: No preferred chromatographic but should avoid Red, White, Yellow, or Green

Three-cores cable: Yellow/Green, Light Blue, Brown, or Light Blue, Black, Brown

Four-cores cable: Yellow/Green, Light Green, Black, Brown or Light Blue, Black, Brown, Black or Brown

Five-cores cable: Yellow/Green, Blue, Black, Brown, Black or Brown; or Light Blue, Black, Brown, Black or Brown, Black or Brown

3.3 Cabling pitch

The cabling pitch should in comply with the requirements of the technical documents.

3.4 Roundness

The cable should be round in appearance and the difference between Max. Dia. and Min. Dia. on same sectional not more than 10% of the average Dia..

3.5 Filling

The Filling material should in comply with the requirements of the technical documents.