Cable bearing system BAKS with cables business nkt cables s.r.o. and PRAKAB PRAŽSKÁ KABELOVNA, s.r.o.

(1)

FUNCTION IN FIRE EXPERT JUDGEMENT REPORT WITH CLASSIFICATION FIRES-JR-045-14-NURE

Cable bearing system BAKS with cables business nkt cables s.r.o. and PRAKAB PRAŽSKÁ KABELOVNA, s.r.o.

This is an electronic version of a classification report which was made as a copy of classification report officially issued in a paper form. The electronic version of a classification report shall be used only for informative purpose. Any information listed in this classification report is the property of the sponsor and shall not be used or published without written permission. Contents of this file may only be modified by the editor i.e.

FIRES, s.r.o., Batizovce. Sponsor is allowed to publish this classification report in parts only with written permission of the editor.

FIRES 004/S2-20/12/2012-E-el

(2)

FUNCTION IN FIRE EXPERT JUDGEMENT REPORT WITH CLASSIFICATION IN ACCORDANCE WITH DIN 4102-12: 1998-11

FIRES-JR-045-14-NURE

Name of the product: Cable bearing system BAKS with cables business nkt cables s.r.o. and PRAKAB PRAŽSKÁ KABELOVNA, s.r.o.

Sponsor: BAKS Kazimierz Sielski ul. Jagodne 5

05 - 480 Karczew Poland

Prepared by: FIRES, s.r.o.

Approved Body No. SK01 Osloboditeľov 282

059 35 Batizovce Slovak Republic

Task No.: PR-14-0177 Date of issue: 30. 05. 2014

Reports: 7

Copy No.: 2

Distribution list:

Copy No. 1 FIRES, s. r. o., Osloboditeľov 282, 059 35 Batizovce, Slovak Republic (electronic version)

Copy No. 2 BAKS Kazimierz Sielski, ul. Jagodne 5, 05 - 480 Karczew, Poland (electronic version)

Copy No. 3 nkt cables s.r.o., Průmyslová třída 1130, 272 01 Kladno, Czech Republic (electronic version)

Copy No. 4 PRAKAB PRAŽSKÁ KABELOVNA, s.r.o., Ke Kablu 278, CZ-102 09 Praha 15, Czech Republic (electronic version)

Copy No. 5 BAKS Kazimierz Sielski, ul. Jagodne 5, 05-480 Karczew, Poland

Copy No. 6 nkt cables s.r.o., Průmyslová třída 1130, 272 01 Kladno, Czech Republic

Copy No. 7 PRAKAB PRAŽSKÁ KABELOVNA, s.r.o., Ke Kablu 278, CZ-102 09 Praha 15, Czech

Republic

(3)

FIRES-JR-045-14-NURE

FIRES 149/S-28/03/2014-E Page: 2/9

1. INTRODUCTION

This expert judgement report with classification defines the function in fire classification assigned to element „ Cable bearing system BAKS with cables business nkt cables s.r.o. and PRAKAB PRAŽSKÁ KABELOVNA, s.r.o. ” in accordance with the classes given in DIN 4102-12: 1998-11.

This test was carried out according to standard STN 92 0205: 2012 and meets requirements of DIN 4102-12: 1998-11. Basic deviation in process and carrying out of test between these standards is in measuring and in control of temperature in the test furnace. According to STN 92 0205: 2012, plate thermometers according to EN 1363-1 are used. According to DIN 4102-12: 1998-11, common thermocouples of construction which was used for this measurement till issue of EN 1363-1 are used.

Measurement by plate thermometers acc. to EN 1363-1 can be considered as stricter method of temperature control in test furnace in compare with thermocouples used till issue of EN 1363-1. Therefore, it is possible to use results of test according to STN 92 025: 2012 for classification of tested cables according to DIN 4102-12: 1998-11, but not conversely.

This expert judgement report defines field of application which is outside the field of direct application according test standard or outside the field of extended application according to relevant extended application standard. This expert judgement expresses the opinion of the FIRES and is based on the experience or internal rules of FIRES.

2. DETAILS OF CLASSIFIED PRODUCT 2.1 GENERAL

The element, Cable bearing system BAKS with cables business nkt cables s.r.o. and PRAKAB PRAŽSKÁ KABELOVNA, s.r.o. , is defined as a cable bearing system for power and communication halogen free cables with circuit integrity maintenance.

2.2 PRODUCT DESCRIPTION

Product comprise of cable bearing system BAKS – cable trays, cable mesh trays, cable clips and clamps with accessories (consoles, brackets, assembling profiles, etc.) and power and communication halogen free cables of nkt cables s.r.o. company and PRAKAB PRAŽSKÁ KABELOVNA, s.r.o. company.

Cable trays

Cable trays type KGJ/KGOJ…H60 are made from steel sheet thickness 0,9 mm.

Cable trays type KCJ/KCOJ…H60 are made from steel sheet thickness 0,9 mm.

Cable trays type KGL/KGOL…H60 are made from steel sheet thickness 0,7 mm.

Cable trays type KCL/KCOL…H60 are made from steel sheet thickness 0,7 mm.

Cable trays type KBL…H60 (trays without perforation) are made from steel sheet thickness 0,7 mm.

Trays are connected together and fixed by screws (SGK M6x12).

Trays are used as a bearing system for the cables.

Cable mesh trays

Cable trays type KDS/KDSO…H60 are made from steel wire ∅ 4,5 mm. Mesh trays are jointed together by junctions (USSN/USSO).

Mesh trays are used as bearing system for the cables.

Cable clips

Single cable clips UDF are made of steel sheet 1,2 mm thick.

Single cable clips (KSA) are made of steel sheet 1,2 mm thick.

Cable clips are used for fixing of cables directly to wall or ceiling.

(4)

Cable clamps

Cable clamps (UKZ1/UKZO1) are made of steel sheet 2,0 mm thick. Cable clamps are used for fixing of cables to cable mesh trays (e.g. KDS/KDSO).

Cable clamps OZ/OZO are made of steel sheet 1,5 mm thick.

Cable clamps OZS/OZSO are made of steel sheet 0,7 mm thick.

Cable clamps OZM/OZMO are made of steel sheet 0,7 mm thick.

Cable clamps are used for fixing of cables directly to wall or ceiling.

Brackets

Brackets type WMC/WMCO… are made from steel sheet thickness 2,5 mm and 5 mm.

Brackets type WWS/WWSO… are made from steel sheet thickness 2,0 mm.

Brackets are used to gripping trays or ladders to ceiling or to wall.

Assembling profiles

Assembling profiles type CWP/CWOP40H40 and CWP40H22 are made from steel sheet thickness 1,5 mm. Assembling profiles are used to gripping trays or ladders.

Consoles

Consoles type WPCW/WPCO… are made from steel sheet thickness 2,0 mm and 6,0 mm.

Trapezoidal hanger

Trapezoidal hangers WT/WTO120 are made of steel sheet 2,5 mm thick.

Used cables by test:

Power cables:

PRAKAB PRAŽSKÁ KABELOVNA, s.r.o.:

PRAFlaDur 90 (N)HXH 4x50 RM (24x) PRAFlaDur 90 (N)HXH 4x10 RE (1x) PRAFlaDur 90 (N)HXH 4x6 RE (1x) PRAFlaDur 90 (N)HXH 4x1,5 RE (30x) nkt cables s.r.o.

NOPOVIC NHXH 4x50 RM E90 (12x)

NOPOVIC NHXH 4x1,5 RE E90 (16x)

Communication cables:

PRAFlaGuard F SSKFH-V 180 E90 1x2x0,8 (26x)

The length of cables was 5,2 m and 4,0 m from that was exposed to fire.

More detailed information about product construction is shown in the drawings which form an integral part

of test report [1]. Drawings were delivered by sponsor.

(5)

FIRES-JR-045-14-NURE

FIRES 149/S-28/03/2014-E Page: 4/9

3. TEST REPORTS AND EXTENDED APPLICATION REPORTS IN SUPPORT OF CLASSIFICATION 3.1 TEST REPORTS AND EXTENDED APPLICATION REPORTS

No. Name of

laboratory Name of sponsor Test report No. Date of the

test Test method [1] FIRES, s.r.o.,

Batizovce, SR

BAKS Kazimierz Sielski, 05 - 480 Karczew, Poland

FIRES-FR- 098-14-AUNE

22. 05.

2014

STN 92 0205 ZP-27/2008 DIN 4102-12 3.2 TEST RESULTS

No./

Test method

Specimen

No. Cables Track

No.

Time to first failure / interruption of conductor

[1]

STN 92 0205 ZP-27/2008 DIN 4102-12

1 2 cables PRAFlaDur^® 90 (N)HXH 4x1,5 RE

13 69 minutes 2 2 cables PRAFlaDur^® 90 (N)HXH 4x50 RM 31 minutes 3 2 cables PRAFlaDur^® 90 (N)HXH 4x1,5 RE

12

90 minutes no failure / interruption 4 2 cables PRAFlaDur^® 90 (N)HXH 4x50 RM 90 minutes no failure / interruption 5 2 cables PRAFlaDur^® 90 (N)HXH 4x1,5 RE

11

90 minutes no failure / interruption 6 2 cables PRAFlaDur^® 90 (N)HXH 4x50 RM 32 minutes

10 90 minutes no failure / interruption 8 2 cables PRAFlaDur^® 90 (N)HXH 4x50 RM 90 minutes no failure / interruption 9 2 cables NOPOVIC NHXH 4x50 RM E90

20 90 minutes no failure / interruption 10 2 cables NOPOVIC NHXH 4x1,5 RE E90 90 minutes no failure / interruption 11 2 cables PRAFlaDur^® 90 (N)HXH 4x50 RM

19 90 minutes no failure / interruption 12 2 cables PRAFlaDur^® 90 (N)HXH 4x1,5 RE 90 minutes no failure / interruption 13 2 cables PRAFlaDur^® 90 (N)HXH 4x50 RM

18 90 minutes no failure / interruption 14 2 cables PRAFlaDur^® 90 (N)HXH 4x1,5 RE 90 minutes no failure / interruption 15 2 cables NOPOVIC NHXH 4x1,5 RE E90

17 90 minutes no failure / interruption 16 2 cables NOPOVIC NHXH 4x50 RM E90 90 minutes no failure / interruption 17 2 cables NOPOVIC NHXH 4x1,5 RE E90

9 28 minutes

18 2 cables NOPOVIC NHXH 4x50 RM E90 90 minutes no failure / interruption 19 2 cables PRAFlaDur^® 90 (N)HXH 4x1,5 RE

7 33 minutes

20 2 cables PRAFlaDur^® 90 (N)HXH 4x50 RM 90 minutes no failure / interruption 21 2 cables NOPOVIC NHXH 4x1,5 RE E90

5 90 minutes no failure / interruption 22 2 cables NOPOVIC NHXH 4x50 RM E90 90 minutes no failure / interruption 23 2 cables PRAFlaDur^® 90 (N)HXH 4x50 RM

8

85 minutes

24 2 cables PRAFlaDur^® 90 (N)HXH 4x1,5 RE 90 minutes no failure / interruption 25 2 cables PRAFlaDur^® 90 (N)HXH 4x50 RM

6 90 minutes no failure / interruption 26 2 cables PRAFlaDur^® 90 (N)HXH 4x1,5 RE 90 minutes no failure / interruption 27 2 cables NOPOVIC NHXH 4x50 RM E90

4 90 minutes no failure / interruption 28 2 cables NOPOVIC NHXH 4x1,5 RE E90 90 minutes no failure / interruption 29 2 cables NOPOVIC NHXH 4x1,5 RE E90 17a 90 minutes no failure / interruption 30 2 cables NOPOVIC NHXH 4x1,5 RE E90 17b 90 minutes no failure / interruption 31 2 cables PRAFlaDur^® 90 (N)HXH 4x1,5 RE 16b 90 minutes no failure / interruption 32 2 cables PRAFlaDur^® 90 (N)HXH 4x1,5 RE 16a 90 minutes no failure / interruption 33 2 cables PRAFlaDur^® 90 (N)HXH 4x1,5 RE

16 90 minutes no failure / interruption 34 2 cables PRAFlaDur^® 90 (N)HXH 4x50 RM 52 minutes

3 90 minutes no failure / interruption 36 2 cables PRAFlaDur^® 90 (N)HXH 4x50 RM 90 minutes no failure / interruption

(6)

No./

Test method

Specimen

No. Cables Track

No.

Time to first failure / interruption of conductor

[1]

STN 92 0205 ZP-27/2008 DIN 4102-12

2 90 minutes no failure / interruption 38 2 cables PRAFlaDur^® 90 (N)HXH 4x50 RM 90 minutes no failure / interruption 39 2 cables NOPOVIC NHXH 4x50 RM E90

1 90 minutes no failure / interruption 40 2 cables NOPOVIC NHXH 4x1,5 RE E90 90 minutes no failure / interruption 41 cable PRAFlaDur^® 90 (N)HXH 4x10 RE +

junction boxes PMO2

15

90 minutes no failure / interruption 42 cable PRAFlaDur^® 90 (N)HXH 4x1,5 RE +

junction boxes PMO2 90 minutes no failure / interruption

43 cable PRAFlaDur^® 90 (N)HXH 4x6 RE + junction boxes PMO1

14

90 minutes no failure / interruption 44 cable PRAFlaDur^® 90 (N)HXH 4x1,5 RE +

junction boxes PMO1 90 minutes no failure / interruption

52 2 cables PRAFlaGuard^® F SSKFH-V180 E90 1x2x0,8 13 2 minutes 53 2 cables PRAFlaGuard^® F SSKFH-V180 E90 1x2x0,8 12 75 minutes 54 2 cables PRAFlaGuard^® F SSKFH-V180 E90 1x2x0,8 11 63 minutes 55 2 cables PRAFlaGuard^® F SSKFH-V180 E90 1x2x0,8 10 27 minutes

56 2 cables PRAFlaGuard^® F SSKFH-V180 E90 1x2x0,8 18 90 minutes no failure / interruption 57 2 cables PRAFlaGuard^® F SSKFH-V180 E90 1x2x0,8 7 74 minutes

58 2 cables PRAFlaGuard^® F SSKFH-V180 E90 1x2x0,8 8 48 minutes

59 2 cables PRAFlaGuard^® F SSKFH-V180 E90 1x2x0,8 6 90 minutes no failure / interruption 60 2 cables PRAFlaGuard^® F SSKFH-V180 E90 1x2x0,8 16b 90 minutes no failure / interruption 61 2 cables PRAFlaGuard^® F SSKFH-V180 E90 1x2x0,8 16a 90 minutes no failure / interruption 62 2 cables PRAFlaGuard^® F SSKFH-V180 E90 1x2x0,8 16 60 minutes

63 2 cables PRAFlaGuard^® F SSKFH-V180 E90 1x2x0,8 3 90 minutes no failure / interruption 64 2 cables PRAFlaGuard^® F SSKFH-V180 E90 1x2x0,8 2 88 minutes

[1] The test was discontinued in 93

^rd

minute at the request of test sponsor.

Specimens S1 – S44 were tested by three-phase voltage supply 3 x 230/400V with bulbs 240V / 60 W.

Specimens S52 – S63 were tested by one-phase voltage supply 1 x 110V with LED diodes 3V /0,03W.

Circuit breakers with rating 3 A were used.

(7)

FIRES-JR-045-14-NURE

FIRES 149/S-28/03/2014-E Page: 6/9

4. CLASSIFICATION AND FIELD OF APPLICATION 4.1 REFERENCE OF CLASSIFICATION

This classification has been carried out in accordance with clause 3.2 of DIN 4102 – 12:1998-11.

4.2 CLASSIFICATION ACCORDING TO STN 92 0205:2012

Cable Type of tested cable, single cross-

sections and number of conductors Arrangement

Classification for type of tested cable

(by cross-sections and number of

conductors)

Classification for cable

NOPOVIC NHXH

E90

NOPOVIC NHXH 4x1,5 RE E90

Cable trays KCL/KCOL300H60.

Consoles combined of assembling profile CWP40H22/04 and threaded rods PG M8 fixed to ceiling by anchors TRSO M8.

Loading 15kg.m^-1. Consoles in spacing of 1500 mm.

Track No. 1.

E 90

n x ≥1,5 mm² n ≥ 2 E 90

NOPOVIC NHXH 4x50 RM E90 E 90

PRAFlaDur^® 90 (N)HXH

PRAFlaDur 90 (N)HXH 4x1,5 RE Cable trays KBL300H50.

Track No. 2.

E 90 n x ≥1,5 mm² n ≥ 2 E 90

PRAFlaDur 90 (N)HXH 4x50 RM E 90

PRAFlaGuard^® F SSKFH-V180

PRAFlaGuard^® F SSKFH-V180 E90

1x2x0,8 E 60

n x 2 x ≥ 0,8 mm n ≥ 1 E 60

PRAFlaDur 90 (N)HXH 4x1,5 RE Cable trays KCJ/KCOJ400H60.

Consoles combined of assembling profile CWP/CWOP40H40/05 and

threaded rods PG M8 fixed to ceiling by anchors TRSO M8.

Track No. 3.

E 90 n x ≥1,5 mm² n ≥ 2 E 90

1x2x0,8 E 90

n x 2 x ≥ 0,8 mm n ≥ 1 E 90

E90

Cable trays KCJ/KCOJ400H60.

Consoles WPCW/WPCO1000, brackets WWS/WWSO400,

holders UPW/UPWO and threaded rods PG M8.

Track No. 4.

E 90

n x ≥1,5 mm² n ≥ 2 E 90

E90

Cable mesh trays KDS/KDSO400H60. Consoles WPCW/WPCO1000, brackets WWS/WWSO400, holders

UPW/UPWO and threaded rods PG M8.

Track No. 5.

E 90

n x ≥1,5 mm² n ≥ 2 E 90

PRAFlaDur 90 (N)HXH 4x1,5 RE Cable trays KCL/KCOL300H60.

Consoles WPCW/WPCO1000, brackets WMC/WMCO300.

Track No. 6.

E 90 n x ≥1,5 mm² n ≥ 2 E 90

1x2x0,8 E 90

n x 2 x ≥ 0,8 mm n ≥ 1 E 90

PRAFlaDur 90 (N)HXH 4x1,5 RE Cable trays KBL300H50.

Consoles WPCW/WPCO1000, brackets WMC/WMCO300.

Track No. 7.

E 30 n x ≥1,5 mm² n ≥ 2 E 30

1x2x0,8 E 60

n x 2 x ≥ 0,8 mm n ≥ 1 E 60

(8)

conductors)

PRAFlaDur 90 (N)HXH 4x1,5 RE Cable mesh trays KDS/KDSO300H60. Consoles WPCW/WPCO1000, brackets

WWS/WWSO300.

Track No. 8.

E 90 n x ≥1,5 mm² n ≥ 2 E 60

PRAFlaDur 90 (N)HXH 4x50 RM E 60

1x2x0,8 E 30

n x 2 x ≥ 0,8 mm n ≥ 1 E 30

E90

Consoles WPCW/WPCO1000, brackets WWS/WWSO300.

Track No. 9.

Without classification

PRAFlaDur 90 (N)HXH 4x1,5 RE Cable trays KCL/KCOL300H60.

Track No. 10.

E 90 n x ≥1,5 mm² n ≥ 2 E 90

PRAFlaGuard^® F SSKFH-V180 E90 1x2x0,8

PRAFlaDur 90 (N)HXH 4x1,5 RE

Cable mesh trays KDS/KDSO300H60. Consoles combined of assembling profile CWP40H22/04 and threaded rods

PG M8 fixed to ceiling by anchors TRSO M8.

Track No. 11.

E 90 n x ≥1,5 mm² n ≥ 2 E 30

1x2x0,8 E 60

n x 2 x ≥ 0,8 mm n ≥ 1 E 60

Consoles combined of assembling profile CWP40H22/04 and threaded rods PG M8 fixed to trapezoidal steel sheet on ceiling

by hangers WT/WTO120.

Track No. 12.

E 90 n x ≥1,5 mm² n ≥ 2 E 90

1x2x0,8 E 60

n x 2 x ≥ 0,8 mm n ≥ 1 E 60

Cable mesh trays KDS/KDSO300H60. Consoles combined of assembling profile CWP40H22/04 and threaded rods

PG M8 fixed to trapezoidal steel sheet on ceiling by hangers

WT/WTO120.

Track No. 13.

E 60 n x ≥1,5 mm² n ≥ 2 E 30

PRAFlaGuard^® F SSKFH-V180 E90 1x2x0,8

PRAFlaDur 90 (N)HXH 4x1,5 RE + junction boxes PMO1

Track is made of single cable clips UDF fixed to ceiling by anchors

SRO M6x30 in spacing of 600 mm. Cables are connected to

junction boxes PMO1.

Track No. 14.

E 90

n x ≥1,5 - 6 mm² n ≥ 2 E 90 PRAFlaDur 90 (N)HXH 4x6 RE +

junction boxes PMO1 E 90

PRAFlaDur 90 (N)HXH 4x1,5 RE + junction boxes PMO2

Track is made of single cable clips UDF fixed to ceiling by anchors

SRO M6x30 in spacing of 600 mm. Cables are connected to

junction boxes PMO2.

Track No. 15.

E 90

n x ≥1,5 - 10 mm² n ≥ 2 E 90 PRAFlaDur 90 (N)HXH 4x10 RE +

junction boxes PMO2 E 90

(9)

FIRES-JR-045-14-NURE

FIRES 149/S-28/03/2014-E Page: 8/9

conductors)

Track is made of cable clamps (OZ/OZO) fixed to ceiling by turbo - screws (7,5 x 52) mm in

spacing of 600 mm.

Track No. 16.

E 90 n x ≥1,5 mm² n ≥ 2 E 30

1x2x0,8 E 60

n x 2 x ≥ 0,8 mm n ≥ 1 E 60 PRAFlaDur^®

90 (N)HXH PRAFlaDur 90 (N)HXH 4x1,5 RE Track is made of cable clamps (OZS/OZSO) fixed to ceiling by turbo - screws (7,5 x 52) mm in

spacing of 600 mm.

Track No. 16a.

E 90 Without

classification PRAFlaGuard^®

F SSKFH-V180

1x2x0,8 E 90

n x 2 x ≥ 0,8 mm n ≥ 1 E 90 PRAFlaDur^®

90 (N)HXH PRAFlaDur 90 (N)HXH 4x1,5 RE Track is made of cable clamps (OZM/OZMO) fixed to ceiling by

turbo - screws (7,5 x 52) mm in spacing of 600 mm.

Track No. 16b.

classification PRAFlaGuard^®

F SSKFH-V180

1x2x0,8 E 90

n x 2 x ≥ 0,8 mm n ≥ 1 E 90

E90

NOPOVIC NHXH 4x1,5 RE E90 Track is made of cable clamps (OZ/OZO) fixed to ceiling by turbo - screws (7,5 x 52) mm in

spacing of 600 mm.

Track No. 17.

E 90 n x ≥1,5 mm² n ≥ 2 E 90

Track is made of cable clamps (OZS/OZSO) fixed to ceiling by turbo - screws (7,5 x 52) mm in

spacing of 600 mm.

Track No. 17a.

classification

Track is made of cable clamps (OZM/OZMO) fixed to ceiling by

turbo - screws (7,5 x 52) mm in spacing of 600 mm.

Track No. 17b.

classification

Track is made of single cable clips UDF shoot by nails Hilti X-GHP 20

MX to ceiling in spacing of 600 mm.

Track No. 18.

E 90 n x ≥1,5 mm² n ≥ 2 E 90

1x2x0,8 E 90

n x 2 x ≥ 0,8 mm n ≥ 1 E 90

PRAFlaDur 90 (N)HXH 4x1,5 RE Track is made of single cable clips UDF fixed to ceiling by turbo - screws (7,5 x 52) mm in spacing

of 600 mm.

Track No. 19.

E 90 n x ≥1,5 mm² n ≥ 2 E 90

E90

NOPOVIC NHXH 4x1,5 RE E90 Track is made of single cable clips KSA fixed to ceiling by anchors

SRBO M6x30 in spacing of 600 mm.

Track No. 20.

E 90 n x ≥1,5 mm² n ≥ 2 E 90

(10)

4.3 FIELD OF APPLICATION

This classification is valid for the following end use applications:

§ throughout the period during which circuit integrity is to be maintained, neighbouring building components shall not have a negative effect on circuit integrity;

§ although testing is only carried out on cables arranged horizontally, test results also apply to cables arranged either diagonally or vertically (e.g. risers), as long as the cable system is supported in transitional areas (i.e. where it switches from a horizontal to a vertical arrangement) in such a manner that the cables will not slip or kink at corners;

§ test results of function in fire test of cables tested at standard supporting construction are also applicable for tested standard supporting construction of other producers;

§ test results of function in fire test of cables tested at standard supporting construction are also applicable for cables of other producers tested at standard supporting construction;

§ maximal length of increasing routing shall be 3500 mm with consistent horizontal placing of cable with minimal length of 300 mm (apart from cable bending) and with maximal spacing of clips of 300 mm, eventually the cables are stabilized by cable transmissions at floor or ceiling with particular fire resistance;

§ for vertical systems, the test results obtained for cables mounted singly on the ceiling using single clips apply. Brackets of proven suitability may also be used, as long as their spacing is equal to that of the single clips tested;

§ results of testing single cables on the ceiling apply also to cables mounted horizontally on walls;

§ results of testing bunched cables on a ladder or tray also apply to support construction attached to a wall. However, such constructions required proof of suitability by means of a test certificate or other document issued by an accredited testing laboratory.