低烟无卤电力电缆--电缆和光缆用阻水带技术规范

Technical Specification for water blocking tape for cable and optical cable

Author：hlyb Add Time：2016-03-28 17:17:55

1 Scope

This specification specifies the classification, requirements, test methods, inspection rules, marking, packaging, transportation and storage of waterproof tape materials for cables and optical cables (hereinafter referred to as water blocking tapes).

2 relevant standards

2.1 Executive Standards

Water blocking tape for cables and optical cables JB / t10259-2001

2.2 reference standards

GB / t450 paper and board - taking of test specimens

GB / t462 paper and board Determination of moisture

GB / t60003 determination of mass per unit area of Nonwovens

FZ / t60004 determination of thickness of Nonwovens

3 product classification

The product classification meets the requirements of Table 1.

Table 1 representation of waterstop

Product category	Product model	Product name	Specifications
Non conductive resistance hose	ZDD	Single side water stop	Nominal thickness × Width mm
	ZDS	Double water stop
	ZDF	Membrane water barrier
Semi conductive resistance hose	ZDBD	Semi conductive single side water blocking tape
Semi conductive resistance hose	ZDBS	Semi conductive double-sided waterstop

4 technical requirements

4.1 appearance

The water blocking Belt should have uniform fiber distribution, smooth surface, no wrinkles, creases and abrasion, no crack, no delamination, no powder material falling off at the width edge. After being coiled, it should be tightly wound and the disk surface should be smooth.

4.2 thickness, unit weight, expansion rate and expansion height

See Table 2.

Table 2 specifications and water resistance of water blocking tape

Product classification	model	Nominal thickness and tolerance mm	Unit weight and tolerance g/m two	Expansion rate mm/min	Expansion height mm
wrong guide electric Hindrance water belt Non conductive waterstop	ZDD	0.20±0.03	70±7	≥8	≥12
		0.25±0.03	80±8	≥10	≥14
		0.30±0.03	90±9	≥12	≥16
	ZDS	0.20±0.03	80±8	≥8	≥12
		0.25±0.03	90±9	≥10	≥14
		0.30±0.03	100±10	≥12	≥16
		0.40±0.03	120±10	≥14	≥18
		0.50±0.03	140±12	≥16	≥20
	ZDF	0.20±0.03	90±9	≥8	≥12
		0.25±0.03	100±10	≥10	≥14
		0.30±0.03	110±10	≥12	≥16
		0.40±0.03	130±10	≥14	≥18
half guide electric Hindrance water belt	ZDBD	0.30±0.03	130±10	≥10	≥14
		0.40±0.03	150±12	≥12	≥16
		0.50±0.03	170±12	≥14	≥18
		0.60±0.03	190±12	≥16	≥20
	ZDBS	0.30±0.03	130±10	≥10	≥14
		0.40±0.03	150±12	≥12	≥16
		0.50±0.03	170±12	≥14	≥18
		0.60±0.03	190±12	≥16	≥20

4.3 width and length

The width and length of water stop belt shall meet the requirements in Table 3.

Table 3 requirements for width and length of waterstop

Width and tolerance mm	Coil length and tolerance M
Required width ± 0.3	Delivery reel length + 20 0

4.4 other properties

Other performances of the water stop belt meet the requirements of Table 4.

Table 4 physical and chemical properties of waterstop

Serial number	Items			Company	Technical index
					Non conductive resistance hose	Semi conductive resistance hose
one	breaking strength * ）			N/cm	≥40	≥40
two	Longitudinal elongation at break			%	≥12	≥12
three	thermal stability	Long term temperature resistance (90 ℃, 24h)	Expansion height	mm	≮ initial value	≮ initial value
		Instantaneous temperature resistance (230 ℃, 20s)			≮ initial value	≮ initial value
four	Hydrogen evolution value (80 ℃, 24h)			μ l/g	≤0.05	—
five	acid value			mgKOH/g	≤1.0	—
six	Moisture content			%	≤7	≤7
seven	Surface resistance			Ω	—	≤1500
eight	Volume resistivity			Ω·cm	—	≤1 × ten five
*The performance index can also be determined by negotiation between the supplier and the demander according to different process.

4.5 joint requirements of waterstop

There should be no joint for the water stop belt with coil length of 500m and below, and one joint is allowed when it is more than 500m. The thickness of the joint shall not exceed 1.5 times of the original thickness, and the breaking strength shall not be less than 80% of the original index. The performance of adhesive tape for joint shall be consistent with that of base material of waterstop, and shall be clearly marked.

5 test method

The test method is in accordance with table 5.

Table 5 related test of water stop belt

Serial number	Test items	Test conditions	requirement	test method
one	appearance	It is in accordance with 6 test methods in JB / t10259-2008	Comply with 4.1	Visual inspection
two	thickness		In accordance with table 2	FZ/T60004
three	ration		In accordance with table 2	FZ/T60003
four	Width, length		In accordance with table 3
five	Expansion rate and height		In accordance with table 2	Appendix A of JB / t10259-2008
six	Thermal stability test		In accordance with table 4	Article 6.7 in JB / t10259-2008
seven	breaking strength elongation at break		In accordance with table 4	FZ/T60005
seven	breaking strength elongation at break		In accordance with table 4	FZ/T60005
eight	Moisture content		In accordance with table 4	GB/T462
nine	Hydrogen evolution value		In accordance with table 4	Appendix B of JB / t10259-2008
ten	acid value		In accordance with table 4	GB/T4945
eleven	Surface resistance		In accordance with table 4	Appendix C of JB / t10259-2008
twelve	Volume resistivity		In accordance with table 4	Appendix D of JB / t10259-2008

6 inspection rules

6.1 inspection methods and requirements

6.1.1 the water stop belts produced by qualified suppliers (returned without quality problems within one year) shall be sampled and inspected at intervals.

6.1.2 the water stoppers supplied by the new manufacturer shall be inspected in each batch, and those qualified in five consecutive sampling shall be transferred to sampling inspection in alternate batches.

6.1.3 if the water stop belt of the designated manufacturer is inspected once, if it is unqualified, it shall be inspected according to the provisions of the supply materials.

6.1.4 for each batch of water stoppers, the quality assurance certificate or test report of the supplier's materials shall be attached.

6.1.5 sampling method: take 2 rolls or more for each specification.

6.2 test items

6.2.1 the inspection items are thickness, tensile strength and elongation at break.

6.2.2 the performance that cannot be tested shall be accepted according to the manufacturer's test report or warranty.

7 packing

The products shall be packed in trays with one plastic bag for each plate, and several plates shall be packed in large plastic bags, and then cartons with suitable diameter of water blocking belt shall be provided with product quality certificate.

8 mark

Each plate of product shall be marked with product name, code, specification, net weight, plate length, product batch number, date of manufacture, standard number and factory name, etc., as well as other marks such as "moisture proof and heat proof".

9 annex

The water blocking belt shall be attached with product certificate and quality assurance certificate when delivery.

10 transportation

The product should avoid moisture and mechanical damage, keep clean, dry, free from pollution, and complete packaging.

11 storage

It should be stored in a dry, clean and ventilated warehouse away from direct sunlight. The storage period is 12 months from the date of manufacture. If the time limit is exceeded, it should be inspected again according to the standard. After passing the inspection, it can still be used.

Browse：

On A：Technical Specification for alkali free glass fiber tape for wire and cable

Next：Technical specification for low smoke halogen free flame retardant tape

Industry news

Technical Specification for water blocking tape for cable and optical cable