PVC Insulating Electrical Pipes And Fittings

PVC-U electrical conduit and fittings are of good quality, low cost, high safety and reliability. It has the advantages of beautiful appearance, light weight and easy bend, anti-aging, corrosion resistance, high fire resistance, good insulation .

Material Properties

Insulation electrical pipe inspection items and basis

Insulation electrical pipe   inspection items and basis

 

Insulation   electrical pipe for   construction

Item

Requirement

Detection method

Frequency of inspection

Exterior

smooth

Visual inspection

3   times/shift

Minimum wall thickness

Not   less than the standard in Table 2 of JG/T 3050-1998

Vernier caliper

3   times/shift

Maximum outer diameter

Rubric can pass by weight

Gauges

1   time/shift

Minimum outer diameter

The rubric cannot pass by weight

Gauges

1   time/shift

Minimum inner diameter

Rubric can pass by weight

Gauges

1   time/shift

Compressive performance

Change   rate of outer diameter at 1min load≤25%

Universal testing machine

1 time/day

Change   rate of outer diameter when unloading for 1min≤10%

Universal testing machine

1 time/day

Folding performance

When   the room temperature is ≥15℃, hold hands tightly and bend slowly at a   distance of 1m without brittle fracture

By hands

1   time/shift

When   the room temperature is less than 15℃, the tube is inserted into the spring   to bend quickly by hand without brittle fracture

Bending performance

No visible cracks

Bending test machine

1 time/day

Impact performance

At   least 10 of the 12 specimens are not broken or cracked

Impact testing machine

1 time/day


PVC electrical accessories testing items and basis

PVC   electrical accessories testing items and basis

PVC   electrical accessories

Item

Requirement

Detection method

Frequency of inspection

Exterior

Smooth without cracks

Visual inspection

1st piece/shift

Size

Meet the company's drawing   requirements

Measured   with calipers with an accuracy of 0.01mm

1st piece/shift

Drop performance

No cracking or broken

According   to JG/T3050-1998 standard 6.8.1 "Sleeve and accessories drop   performance" test

1st piece/shift

Density

Internal control density   requirements

GB/T1033.1-2008   standard test

1st piece/shift