CLIN_-_004_RFI_00021_-FlexibleConduits.pdf

USAID/EHIP

New Health Center Construction

Task Order 8, Combined RFI Log

Durame Site 202 Batu Site 251

Gimbichu Site 208 Arsi Negele Site 277

Waka Site 213 Meki Site 290

RFI No. Date Rec'd Item No. Question TT Response Response Date Follow-up

Arsi Negle 00015

Batu 00022

Gimbichu 00021

Durame

00015

Waka 00020

7-Aug-14 1 In Technical Specification division 16130, it is stated to use rigid non-metallic conduits as raceways. However, submittal had been sent on

Dec 17, 2013 (Submittal No TO-8-00009) about raceways with both rigid and flexible non-metallic conduits. The submittal includes product data of the flexible conduits specifying the use of these conduits in plastered walls and ceilings. TT evaluation was given as 'A' (please refer to attached submittal). We reguest your approval to use flexible non-metallic conduits where applicable. Please note that NEMA permits the use o flexible conduits (please refer to attached manual extracts from NEMA)

TO-8-00009 refered "previous approval" from submittal TO-5-00003, submittal TO-5-00003 refered "previous approval" from Transmittal-

00034 of TO-3.

Transmittal-00034 was submitted to TO-3 sites and in TO-3 sites the conduits installed are only RNC types. There is no LFNC flexible conduit used in the sites.

The proposal is unacceptable as the LFNC conduits are not mechanical resistant as that of RNCs, hence please use as per the specification and as installed in TO-3.

As per our QA electrical report RNC types are installed for all TO#8 sites.

14-Nov-14

P:\01298\127-01298-11002\Construction\RFIs\TO#8 - Combined RFI's\RFI Log TO#8 COMBINED

QA review comments on Shop Drawing Submittals Task Order 8, Combined QA Review Log

Durame Site 202 Batu Site 251 Gimbichu Site 208 Arsi Negele Site 277 Waka Site 213 Meki Site 290

Site Name Transmittal/ Submittal No.

Date Rec'd by

TT

Spec Section/ Para No.

Description New Sub Resub IRD review TT Evaluation

Date Responded TT Additional comments beyond what IRD identified

02600 Water mains & appurtenances (HOPE Pipes & fittings, Gate valve) G 21‐Dec‐13

Previous approved submittal does not include Gate Valve product data.

02622 Sewer mains, laterals (GIW, OPF. Hepworth Pipes) & fitting

( FIRAT, HAKAN, APLACO)

G 21‐Dec‐13

Previous approved submittal does not include APLACO data.

15440 PPR pipes for building plumbing A 21‐Dec‐13

Accepted.

09510 Suspended PVC ceiling A 21‐Dec‐13

Accepted.

09510 Suspended Ceiling (AMF) A 21‐Dec‐13

Accepted.

10801 Toilet Rail A 21‐Dec‐13

Accepted.

10801 Soap holder A 21‐Dec‐13

Accepted.

10801 Toilet paper holder A 21‐Dec‐13

Accepted.

IS440 Water heater C 21‐Dec‐13

Please provide the required data in previous subject submittal.

09310 Concrete Paving tiles C 21‐Dec‐13

Please provide the required data in previous subject submittal.

09610 Epoxy floor finish A 21‐Dec‐13

Accepted.

16120 Conductors & cables (Euro cables) A 21‐Dec‐13

Accepted.

16120 Conductors & cables (Elsewedy) A 21‐Dec‐13

Accepted.

16130 Raceways & boxes A 21‐Dec‐13

Accepted.

16410 Circuit breakers (Legrand) A 21‐Dec‐13

Accepted.

16410 Circuit breakers (ABB) A 21‐Dec‐13

Accepted.

16442 Panel boards (D ama Trading TBox) A 21‐Dec‐13

Accepted.

16442 Panel boards (ABB) A 21‐Dec‐13

Accepted.

16511 Interior lighting C 21‐Dec‐13

Please provide the required data in previous subject submittal.

16140 Wiring devices (Legrand KAPTIKA) A 21‐Dec‐13

Accepted.

16140 Wiring devices (Legrand) A 21‐Dec‐13

Accepted.

16511 Interior Lighting (Water proof luminaries‐PEDAS) A 21‐Dec‐13

Accepted.

All TO#8 Sites Durame Gimbichu Waka Batu

Arsi Negele Meki

TO‐8‐00009 17‐Dec‐13 x gdemissie Rectangle

Rectangle

LPFLEX - very low mechanical resistance

For installation into or under the parget.

Suitable for mounting into plaster walls and ceilings.

Possibility to install in places with risk of flammable gases and vapor

– danger zone 2, with explosive risk of dust – danger zone 22.

The pipes manufactured in the dimensions according to EN may be connected or attached by means of rigid pipe accessories, see page 3-10.

MONOFLEX - low mechanical resistance

For surface installation, into or under parget.

Suitable for mounting into hollow walls, plaster walls and ceilings.

Possibility to install in places with risk of flammable gases and vapor – danger zone 2, with explosive risk of dust – danger zone 22.

The pipes manufactured in the dimensions according to EN may be connected or attached by means of rigid pipe accessories, see page 3-10.

EN

conf. mm mm m kg

2316E

H100

16 10,7

100 3,9

H100D 100 4,3

H50 50 1,9

H50D 50 2,1

H100

20 14,1

100 4,6

H100D 100 5,0

H25 25 1,2

H50 50 2,4

H50D 50 2,6

H50

25 18,3 50 3,4

H50D 50 3,6

H50

32 24,3 25 5,3

H50D 50 5,5

H25

40 31,2 25 4,3

H25D 25 4,4

H25

50 39,6 4,7

H25D 25 4,8

ČSN

conf. mm mm m kg

H100

18,7 13,5 100 4,3

H50 50 2,2

H100

21,2 16 100 4,6

H50 50 2,4

H100

28,5 22,9 100 8,5

H50 50 4,8

2329 H50 34,5 28,4 50 6,1

2336 H50 42,2 35,9 50 7,2

2348 H50 54,5 47,7 50 11,0

ČSN

conf. mm mm m kg

1413/1 K100 18,7 13,5 100 6,1

1416/1 K100 21,2 16 100 6,8

1423/1 K100 28,5 22,9 100 11,2

1429/1 K50 34,5 28,4 50 6,8

1436/1 K50 42,2 35,9 50 10,2

1448/1 K50 54,5 47,7 50 11,4

ČSN

pipes mm pcs kg

0216 21,2 50; 400 6,1

0223 28,5 300 8,6

0229 34,5 200 5,3

EN

conf. mm mm m kg

1416E

H50

16 10,7

50 2,0

K50 50 2,0

K50D 50 2,2

H50

20 14,1

50 2,6

K25 25 1,3

K50 50 2,6

K50D 50 2,8

H50

25 18,3

50 3,5

K25 25 1,8

K50 50 3,5

K50D 50 3,7

H50

32 24,3

50 5,9

K15 15 1,9

K25 25 3,1

K25D 25 3,2

K50 50 5,9

H25

40 31,2 25 4,7

K25 25 4,7

1450 K25 50 39,6 25 5,2 conf. description

H... color: grey-white RAL 9002

...100... package: 100 m

...50... package: 50 m

...25... package: 25 m

...D with draw-through wire conf. description

H... color: white RAL 9010

K... color: light grey RAL 7035

...100... package: 100 m

...50... package: 50 m

...25... package: 25 m

...15 package: 15 m

...D with draw-through wire

125 N / 5 cm 11212 grey-white

RAL 9002

PVC

self-snuffing

-5 - + 60 °C A - C3

320 N / 5 cm 22212 light grey RAL 7035 white RAL 9010

PVC

self-snuffing

-5 - + 60 °C A - C3

Connections for flexible pipes ČSN white PVC self-snuffing

-5 - + 60 °C A - C3

W I R I N G P I P E S3 tashuro Line tashuro Line gdemissie Rectangle

Polygon

NEMA RV 3-2012

Application and Installation Guidelines for Flexible and Liquidtight Flexible Metal and Nonmetallic Conduits

Published by:

National Electrical Manufacturers Association 1300 North 17th Street, Suite 1752 Rosslyn, VA 22209 www.nema.org

© Copyright 2012 by the National Electrical Manufacturers Association. All rights including translation into other languages, reserved under the Universal Copyright Convention, the Berne Convention for the Protection of Literary and Artistic Works, and the International and Pan American Copyright Conventions.

http://www.nema.org/

RV 3-2012

© Copyright 2012 by National Electrical Manufacturers Association

Lighting whips; and, Motor leads.

2.4.1.1.2 LFNC

NEC

Section 356.10 specifies the permitted uses of LFNC as follows:

LFNC shall be permitted to be used in exposed or concealed locations for the following purposes:

Note: Extreme cold may cause some types of nonmetallic conduits to become brittle and therefore more susceptible to damage from physical contact.

1) Where flexibility is required for installation, operation, or maintenance.

2) Where protection of the contained conductors is required from vapors, liquids, or solids.

3) For outdoor locations where listed and marked as suitable for the purpose.

4) For direct burial where listed and marked for the purpose.

5) Type LFNC-B shall be permitted to be installed in lengths longer than 1.8 m (6 ft.) where secured in accordance with 356.30.

6) Type LFNC-B as a listed manufactured prewired assembly, metric designator 16 through 27

(trade size ½ through 1) conduit.

7) For encasement in concrete where listed for direct burial and installed in compliance with 356.42.

2.4.1.2 Uses Not Permitted

2.4.1.2.1 LFMC

As with permitted uses, those uses not permitted by the NEC are not all-inclusive. The code language is intended to provide guidance on where and how LFMC may be used.

NEC

Section 350.12 specifies the uses of LFMC that are not permitted, which are as follows:

1) Where subject to physical damage.

2) Where any combination of ambient and conductor temperature produces an operating temperature in excess of that for which the material is approved.

2.4.1.2.2 LFNC

NEC

Section 356.12 specifies the uses of LFNC that are not permitted, which are as follows:

(1) Where subject to physical damage.

(2) Where any combination of ambient and conductor temperatures is in excess of that for which the

LFNC is approved.

(3) In lengths longer than 1.8 m (6 ft.), except as permitted by 356.10(5) or where a longer length is approved as essential for a required degree of flexibility.

(4) Where the operating voltage of the contained conductors is in excess of 600 volts, nominal, except as permitted in 600.32(A).

(5) In any hazardous (classified) location, except as permitted by other articles in this code.

2.4.1.3 Where Subject to Physical Damage

LFMC and LFNC must be protected from physical damage. This includes installing LFMC at heights and locations where it will not be exposed to damage. It also includes providing mechanical protection such as from nails and screws in accordance with section 300.4(D) by maintaining a 1-1/4 in (32 mm) distance from the edge of a framing member or by providing a metal plate where the distance cannot be maintained from the edge of a framing member or a furring strip.