PVC Electrical rigid insulation conduits and fittings in building-Metric

Item

Requirement

Rigid pipe

Fitting

1

compression test

loading 1min，Outer diameter change rate≤25%

Unloading 1min,Outer diameter change rate ≤10%

2

Impact test

10/12

——

3

Bending test

No visible cracks

——

4

Drop performance

No seismic cracking or breakage

No seismic cracking or breakage

5

Heat resistance performance

D₁ ≤2   mm

D,≤2 mm

6

Flame retardance

self-extinguishing time

t.≤30 s

te≤30 s

7

Oxygen Index

OI≥32

OI≥32

8

Electrical performance

No breakdown within 15 minutes

R≥100 MΩ

No breakdown within 15 minutes

R≥100 MΩ

Type

dn

Wall thickness (MM)

Light Duty, 320N,

16

1.0

20

1.0

25

1.2

32

1.5

40

1.7

Medium Duty, 750N,

16

1.1

20

1.4

25

1.5

32

1.8

40

1.9

Heavy Duty, 1250N,

16

1.3

20

1.6

25

1.8

32

2.2

40

2.4

RED/BULE

16

1.2

20

1.4

25

1.4

Note:Colors can be customized