Disclosure to Promote the Right To Information

Whereas the Parliament of India has set out to provide a practical regime of right to information for citizens to secure access to information under the control of public authorities, in order to promote transparency and accountability in the working of every public authority, and whereas the attached publication of the Bureau of Indian Standards is of particular interest to the public, particularly disadvantaged communities and those engaged in the pursuit of education and knowledge, the attached public safety standard is made available to promote the timely dissemination of this information in an accurate manner to the public.

इंटरनेट मानक

“!ान $ एक न' भारत का +नम-ण”Satyanarayan Gangaram Pitroda

“Invent a New India Using Knowledge”

“प0रा1 को छोड न' 5 तरफ”Jawaharlal Nehru

“Step Out From the Old to the New”

“जान1 का अ+धकार, जी1 का अ+धकार”Mazdoor Kisan Shakti Sangathan

“The Right to Information, The Right to Live”

“!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता है”Bhartṛhari—Nītiśatakam

“Knowledge is such a treasure which cannot be stolen”

“Invent a New India Using Knowledge”

है”ह”ह

IS 10098 (1982): General requirements for electricinfra-red emitters for heating purposes [ETD 17: IndustrialElectroheating Equipment]

IS : 10098 - 1982

Indian Standard GENERAL REQUIREMENTS FOR

ELECTRIC INFRA-RED EMITTERS FOR HEATING PURPOSES

Industrial Electra-heating Equipment Sectional Committee, ETDC 61

Representing

Tata Iron and Steel Co Ltd, Jamshcdpur

SHRI A. K. BISWAS ( Alternate to Shri S. K. Mazumder )

Snr:~ G. A. ADUNI Westerwork Projects Ltd, Bombay SHRI L. C. C~asnr ( Alternate )

SHRI S. N. AGARWAI, Steel Furnace Association of India, New Delhi SHRI S. K. BHaTTao~.41w M. N. Dastur & Company (P) Ltd, Calcutta

SHRI T. K. GHOSII ( Alternate ) SHRI R. M. CK4NDWANI Hindustan Prawn Boveri Ltd, Vadodara

SHRI P. S. SHAHX_I ( Alternate ) SHRI K \CSIISL GAEL Engineering Projects ( India ) Ltd, New Delhi

SRRI M. M. PRAS~D ( AhermIts) S~rtr S. S. HUBLI Kirloskar Electric Co Pvt Ltd ( Unit IV ), Mysore

SHRI S. S. HEMACHANDER ( Alternate ) SHRI A. K. J.41~ Graphite India Ltd, Calcutta

SHR~ J. K. AGAI~WAL ( Alternate ) SIII<I G. L. KESWANI Directorate General of Technical Development,

New Delhi SIIP.I A. K. KI~s.\vAL~~ ( Alternate )

SHRI 0. N. KRISHN~N Metallurgical & Engineering Consultants ( India ) Ltd, Ranchi

SHRI J. c. MAnAN Steel Authority of India Ltd, New Delhi SHRI A. K. JAIN ( Alternate )

SHRI P. K. ML-RHOPADHYAY Heavy Machine Building Plant, Heavy Engineering Corporation, Ranchi

SHRI M. K. N.IIR Directorate General of Ordnance Factories ( Ministry of Defence ), Calcutta

SARI P. A. PITXL Indian Furnace Company Ltd, Bombay SHRI M. PURANDHAR ( ~bmte )

SHRI V. R. K. N. SASTRI Mishra Dhatu Nigam Ltd, Hyderabad SHRI N. R.~GR.\VAN ( Alternate )

( Contiwed on page 2 )

@ Cobysight 1982 INDIAN STANDARDS INSTITU1‘ION

This publication is protected under the Indian Cof#ght Act ( XIV of 1957 ) and reproduction in whole or in part by any means except with written permission of the publisher shall be deemed to be an infringement of copyright under the said Act.

( Continued from page 1 )

Members Representing

SHRI S. V. KRISHNA RAO Bharat Heavy Electricals Ltd, Secunderabad SRRI B. PATHIILAJ ( A1ttmaate )

SHRI M. SHANKRALINGAM Directorate General of Supplies & Disposals, New Delhi

SHRI R. V. NARAYANAN ( Alternate ) SHRI Y. P. VATSA The General Electric Co of India Ltd, Calcutta

SHRI S. M. BANERJEE ( Alternate ) SHRI S. P. SACHDEV, Director General, IS1 ( Ex-o$icio Member )

Director ( Elec tech )

Secretary

SHRI JOSE MATHEW Assistant Director ( Elec tech ), IS1

2

Indian Standard GENERAL REQUIREMENTS

IS : 10098 - 1982

FOR ELECTRIC INFRA-RED EMITTERS FOR

HEATING PURPOSES

0. FOREWORD

0.1 This Indian Standard was adopted by the Indian Standards Institution on 20 January 1982, after the draft finalized by the Industrial Electra-heating Equipment Sectional Committee had been approved by the Electrotechnical Division Council.

0.2 This standard covers the basic requirements for reflector and tubular quartz electric infra-red emitters used for industrial heating purposes.

0.3 In preparing this standard, assistance has been derived from IEC Pub 240 ( 1967 ) ‘ Ch aracteristics of electric infra-red emitters for heat- ing purposes ’ issued by International Electrotechnical Commission.

0.4 For the purpose of deciding whether a particular requirement of this standard is complied with, the final value, observed or calculated, expressing the result of a test, shall be rounded off in accordance with IS : 2-1960*, The number of significant places retained in the rounded off value should be the same as that of the specified value in this standard.

1. SCOPE

1.1 This standard specifies the general requirements for reflector and tubular quartz electric infra-red emitters used for industrial heating purposes.

2. TERMINOLOGY

2.0 For the purpose of this standard, the following definitions shall

apply.

*Rules for rounding off numerical values ( revised ).

3

IS : 10098 - 1982

2.1 Infra-Red Emitter - An emitter which radiates especially strongly in the infra-red and for which the light production is not of direct interest.

2.2 Reflector Emitter - An infra-red emitter in which part of the bulb is shaped and metallized so as to concentrate radiation.

2.3 Tubular Quartz Emitter - An infra-red emitter with a quartz tube and with a straight-line filament held parallel to the axis of the tube.

2.4 Rated Power - Rated power marked on the emitter.

2.5 Rated Voltage - The voltage marked on the emitter.

2.6 Design Voltage - The voltage at which the rated characteristics are obtained.

2.7 Maximum Permissible Cap and Bulb Temperature - Tempe- rature on cap and bulb of the infra-red emitter which should not be exceeded when operated under any service condition.

3. MARKING

3.1 The following information shall be marked on the emitter:

a) Manufacturer’s name or trade-mark;

b) Rated power;

c) Rated voltage or rated voltage range; and

d) IR ( infra-red ), for reflector type only.

3.2 The maximum cap and bulb temperatures should be quoted in the manufacturer’s catalogue. If marking on the emitter is required, it should be IRl for low-temperature service, and IR2 for high-temperature service.

4. DIMENSIONS

4.1 The dimensions of reflector emitters are shown in Fig. 1.

4.2 The dimensions of tubular quartz emitters are shown in Fig. 2.

5. EMITTER CHARACTERISTICS

5.1 The characteristics of reflector emitters shall be as given in Table 1.

5.2 The characteristics of tubular quartz emitters shall be as given in Table 2.

4

IS : 10098 - 1982

FIG. 1 REFLECTOR EMITTER

W:Til METAL STRIP CONNECTION

L2

WITH CAELE CONNECTION

FIG. 2 TUBULAR QUARTZ EMITTER

5

IS : 10098 - 1982

TABLE 1 REFLECTOR EMITTERS

( czuuse 5.1 )

(1)

Rated power

Design voltage

Rated voltage

UNITS

(2)

w

V

V

Cap ( Lamp caps and holders together with gaugrs for the control of interchangeability and safety )

Maximum neck diameter D,

Maximum bulb diameter D,

Maximum overall length L,

DisF;;uibo; centre contact of cap to greatest diameter 1

mm

mm

mm

mm

Maximum allowed cap 7

temperature s

Maximum allowed bulb 1 temperature

:

Low-temperature service

High-temperature service

Low-temperature service

High-temperature service

“C

“C

‘C

“C

VALUES

(3)

250 or 375

240

240 or 230 to 250

E 27130 E 27127

42

130

195

148 f 10,

250

275

250

420

NOTT: 1 - Distribution of radiation shall be as specified by the manufacturer.

NOTE 2 - It is intended to standardize E 27/30 cap only, in future.

6

IS : 10998 - 1982

TABLE 2 TUBULAR QUARTZ EMITTERS

CHARACTERISTICS

( Clause 5.2 )

UNITS VaLUES

(1) Rated power

Type of connection

Design voltage

Rated voltage range

Maximum bulb diameter D,

Width of slots D,

Maximum diameter of holder pins

1 For metal ’ strip

4 ( see Fig. 2 ) > connection

1 For cable

V

V

mm

mm

mm

? mm J

J COnneCtIOn > mm

Maximum width of connec- mm tion strip D,

Maximum allowed seal ‘C temperature in the fitting

(2)

W

(3)

500

Metal strip or cable

240

230 to 250

12

5 f 0.5

45 -

243

227 max

15

300

(4)

1000

kk;;l$r$

240

230 to 250

12

5 f 0.5

45

368

367 max

15

300

(5)

2000

Metal strip or cable

240

230 to 250

12

5 f 0.5

45

508

492 max

15

300

NOTE 1 -The cap designation and the length of the filament Lr shall be as specified by the manufacturer.

NOTE 2 - Dimensions L, for metal strip connection are given for guidance to the oven manufacturer in order to set the locating pins at the correct distance. The requirement for lamps is that they can be mounted on pins set at a nominal dimen- sions Lp. The tolerance on the distance between the locating pins (Ls) should not exceed f 05 mm. The holders should be floating over 1 mm minimum to allow for the difference in expansion between the quartz lamp and the material of the oven structure.

7

INTERNATIONAL SYSTEM OF UNITS ( SI UNITS)

Base units

QUANTITY

Length

Mass

Time

Electric current

Thermodynamic temperature

Luminous intensity

Amount of substance

Supplementary Unit9

QUANTITY

Plane angle

Solid angle

Derived Unite

UNIT SYMBOL

metre m

kilogram kg second

ampere

kelvin

candela

mole

UNIT

radian

steradian

s

A

K

cd

mol

SYMBOL

rad

<r

QUANTITY UNIT SYMBOL

Force

Energy

Power

Flux

Flux density

Frequency

Electric conductance

Electromotive force

Pressure, stress

newton

joule

watt

weber

tesla

hertz

volt Pascal

N .J W

Wb

T

HZ

S

V

Pa

DEFINITION

I N 0 1 kg.m/s

1 J - 1 N.m

1 W-lJ/s

IWb- 1V.s

1 T = 1 Wb/m’

1 Hz 0 1 c/s (s-1)

1 s = 1 A/V

1 v - 1 W/A

1 Pa = 1 N/m’