Lavspenning/Kabler/OPGW-240mm² GXX-9-125 QXRX(21,3) Q1L2

1 SCOPE

1.1 Use

OPGW (optical fibre in ground wire) combines the function of telecommunications over optical fibres and ground wire for high voltage power lines.

1.2 Purpose

The purpose of the technical specification is to provide guidance for the production, test procedures and delivery of products according to stated requirements. The technical specification contains technical and functional requirements to be fulfilled.

The OPGW shall provide capability to transfer information signals using 48 or 96 optical fibres.

The OPGW shall provide capability to transfer high currents.

1.3 History

First edition: 25.08 2011.

2 REQUIREMENTS

Two variants of OPGW are specified, one with 48 optical fibres and one with 96 optical fibres.

2.1 Optical requirements for the fibres

a) Optical fibres shall be single mode fibres according to ITU-T G.652.D (Table 4/G.652 - G.652.D attributes) with dimensions 9/125 µm.

2.2 Electrical requirements

a) The following electrical requirements apply for the metallic line (and the steel tube for optical fibres)

1	Resistance in line, maximum value:	0,13 Ω/km
2	Current carrying capacity (20 °C - 200 °C)	750 kA2s
3	Current carrying capacity, short time (1 s, 20 °C - 200 °C)	27 kA
4	Tensil strength	80 kN
5	Elasticity of elongation	57 kN/mm2
6	Temperature coefficient	23•10-6
7	Temperature, in operation	-40 °C - +80 °C
8	Temperature, installation	-15 °C - +40 °C

2.3 Cable types and mechanical requirements

a) The following mechanical requirements apply:

Number of optical fibres	Designation	F.number	Diameter (mm)	Min. bending diameter (mm)	Max. static tension (kN)	Weight (approx.) (kg/km)
48	G48-SM 9/125 QXRX xxxxxxx	to be defined	21,5	650	80	750
96	G96-SM 9/125 QXRX xxxxxxx	to be defined	21,5	650	80	750

F.number is an uniqe 9-digit number identifying the specific production variant.

2.4 Mechanical construction of metallic elements

a) The aluminium wires shall be of quality AA with a diameter of 4,25 mm.

b) One aluminium wire (AA, ø4,25 mm) shall be in center.

c) The first layer shall consist of:

• 5 aluminium wires (AA, ø4,25 mm).
• one steel tube with optical fibres (48 or 96 optical fibres)

d) The second layer shall consist of 12 aluminium wires (AA, ø4,25 mm)

2.5 Primary cladding and colour code for the optical fibres

a) The optical single mode fibres shall have a primary cladding.

1. The minimum diameter of the primary cladding shall be 250 µm.
2. The colouring of the primary cladding shall be durable and resistent to cleaning aids.
3. It shall be easy to clean off the primary cladding with natural means without health risk. The means and method shall be provided.

b) The primary cladding shall be coloured according to the colours defined in IEC 60304. The following colour code shall be used:

	Number of ring marks per cluster / Distance between clusters of ring marks
Fibre colour	0/0	1 / 50	1 / 25	2 / 50	2 / 25	1 / 100	2 / 100	3 / 50
Blue	1	13	25	37	49	61	73	85
Orange	2	14	26	38	50	62	74	86
Green	3	15	27	39	51	63	75	87
Brown	4	16	28	40	52	64	76	88
Grey	5	17	29	41	53	65	77	89
White	6	18	30	42	54	66	78	90
Red	7	19	31	43	55	67	79	91
Natural	8	20	32	44	56	68	80	92
Yellow	9	21	33	45	57	69	81	93
Violet	10	22	34	46	58	70	82	94
Pink	11	23	35	47	59	71	83	95
Aqua	12	24	36	48	60	72	84	96

2.6 Secondary protection (tube)

a) 48 or 96 optical fibres with primary cladding and a filling compound (for water protection) shall be contained in a steel tube.

b) The filling compound shall be easily removeable by natural means without health risk. The means and method shall be provided.

2.7 Tools

a) It shall be possible to terminate and splice the fiber optic cables with normal tools for terminating optical fibres.

2.8 Fire properties

Not applicable.

2.9 Markings

a) The drum containing the OPGW shall have markings with the following information:

1. manufacturer's name
2. designation
3. F.number
4. length
5. preferably also a uniqe production identity
6. year of production

2.10 Quality certificate

a) A quality certificate containing test results or control check points shall accompanying the cable and the invoice. The quality certificate shall indicate the purchase number.

2.11 Documentation, language

a) Product sheets shall be available in Norwegian.

3 ENVIRONMENTAL CONCERNS

a) Temperatures

Storage temperature	-40 °C to +50 °C
Installation temperature	-10 °C to +40 °C
Operating temperature	-40 °C til +80 °C

b) The OPGW shall be fitted with protective caps at both ends to avoid intrusion of moisture and contamination.

1. The steel tube the optical fibres should be fitted with protective caps.

c) Production, use and disposal of the products shall be possible obeying national regulations (Forurensningsloven).

4 REFERENCE

a) Undated references shall be the last one published.

1. IEC 60304: Standard colours for insulation for low-frequency cables and wires
2. IEC 60502, CENELEC HD 604
3. IEC 60794-1-2 Optical fibre cables - Part 1-2: Generic specification - Basic optical cable test procedures
4. ITU-T G.952 Characteristics of a single-mode optical fibre and cable
5. Generelle tekniske miljøkrav, se 560, kapittel 4, punkt 5 (https://trv.jbv.no)

5 CONFORMANCE LIST

Clause	req.	Complient: (YES / NO )	... any comments
2.		---/---	REQUIREMENTS
2.1		---/---	Optical requirements for the fibres
	a
2.2		---/---	Electrical requirements
	a
2.3		---/---	Cable types and mechanical requirements
2.4		---/---	Mechanical construction of metallic elements
	a
	b
	c
	d
2.5		---/---	Primary cladding and colour code for the optical fibres
	a
	b
2.6		---/---	Secondary protection (tube)
	a
	b
2.7		---/---	Tools
	a
2.8		---/---	Fire properties
2.9		---/---	Markings
	a
2.7		---/---	Quality certificate
	a
2.8		---/---	Documentation, language
	a
3.		---/---	ENVIRONMENTAL CONCERNS
	a
	b
	c