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­µ¤µ¦™šœÂ¦Š—´œ­¼Š­»—…°Š¦³šÉ¸°µ‹Á„·—Å—oÁ¤ºÉ°‹»—˜n°šÊ´Š®¤—™¼„žd— ˜n˜o°ŠšœÂ¦Š—´œÅ—oŤn
œ°o ¥„ªµn 200 žµ­‡µ¨ (2 ¤¨· ¨·µ¦)r

­Îµœ´„Áš‡ÃœÃ¨¥‡¸ ªµ¤ž¨°—£¥´ „¦¤Ã¦ŠŠµœ°»˜­µ®„¦¦¤ 4-12

ǦŠ„µ¦‹—´ šµÎ ‡¼n¤º°„µ¦˜¦ª‹­° ˜·—˜Š´Ê ¦³Â¨³°ž» „¦–År ¢¢jµ Ĝ¡Êœº š¸É°´œ˜¦µ¥šÉ¸¤Å¸ °¦³Á®¥…°Š­µ¦ÅªÅ¢

(…) ª´­—»š¸Éčo˜o°ŠÁ®¤µ³­¤„´„pµŽžj°Š„´œ (Protective Gas) ¨³­µ¦ÅªÅ¢šÉ¸¤¸
Ĝ¦³ ץŤnÁ„—· Ÿ¨„¦³šÄœšµŠš¸„É n°Ä®oÁ„·—‡ªµ¤Á­¥¸ ®µ¥

(‡) ‹»—˜n°˜nµŠÇ š¸ÉÁž}œ‹»—‹nµ¥„pµŽžj°Š„´œÄ®on°ŠÁ—·œ­µ¥ ˜o°Š˜·—˜Ê´ŠÅªoœ°„
¦·Áª–°œ´ ˜¦µ¥¥„Áªœo ˜´ªšn°‹µn ¥„µp Žžj°Š„œ´

(Š) n°ŠÁ—·œ­µ¥˜o°Š¡¥µ¥µ¤˜·—˜´ÊŠœ°„¦·Áª–°´œ˜¦µ¥ Ä®o¤¸¦³¥³®nµŠ¤µ„
š¸É­»—šÉ¸‹³ž’·´˜·Å—o „¦–¸š¸Én°ŠÁ—·œ­µ¥Á—·œŸnµœ¦·Áª–°´œ˜¦µ¥Â¨³„pµŽžj°Š„´œ¤¸‡ªµ¤—´œ˜Îɵ
„ªnµ‡ªµ¤—œ´ ¦¦¥µ„µ« °n ŠÁ—·œ­µ¥˜o°ŠÅ¤¤n ‹¸ »—š„¸É µp Ž¦´ªÉ ŗo

„µ¦Á—·œ­µ¥Å¢¢jµ£µ¥Äœ¡ÊºœšÉ¸°´œ˜¦µ¥ž¦³Á£šš¸É 1 ˜µ¤¤µ˜¦“µœ¥»Ã¦žÂ¨³°Á¤¦·„µ
Á®œ°º ¤‡¸ ªµ¤Â˜„˜µn Š„´œ —´ŠœÊ¸

ž¦³Áš«Äœ„¨n»¤°Á¤¦·„µÁ®œº° Ánœ ­®¦´“°Á¤¦·„µ ¨³Â‡œµ—µ ‹³Äo¤µ˜¦“µœ NEC Ž¹ÉŠ
„ε®œ—Ä®o¤¸„µ¦¦o°¥­µ¥Å¢¢jµÄœšn°Á®¨È„š¸É¤¸‡ªµ¤Â…Ȋ¦Š ¨³‹³˜o°Š¤¸„µ¦Ž¸¨—oª¥
­µ¦ž¦³„°šÉ¸­µ¤µ¦™žj°Š„´œÂ„p­®¦º°Å°¦³Á®¥…°Š­µ¦ÅªÅ¢Å¤nÄ®oÁ…oµÅž—oµœÄœšn°Å—o …o°—¸
…°Š„µ¦Á—œ· ­µ¥Å¢¢µj œÊ¸„ȇº° ­µ¤µ¦™žj°Š„´œ‡ªµ¤Á­¸¥®µ¥…°Š­µ¥Å¢¢jµ‹µ„„µ¦„¦³Âš„
®¦°º ™¼„­µ¦Á‡¤‹¸ œŒœªœÁ„—· ‡ªµ¤Á­¥¸ ®µ¥ ˜n¤…¸ °o Á­¥¸ ‡°º ‡nµÄ‹o µn ¥­¼ŠÂ¨³¥Šn» ¥µ„Äœ„µ¦˜—· ˜Š´Ê

¦ž¼ š¸É 4.6 „µ¦Á—·œ­µ¥Å¢¢µj £µ¥Äœ¡ºÊœš°¸É œ´ ˜¦µ¥ž¦³Á£šš¸É 1 ˜µ¤¤µ˜¦“µœ°Á¤¦„· µÁ®œ°º

­µÎ œ„´ Áš‡ÃœÃ¨¥‡¸ ªµ¤ž¨°—£´¥ „¦¤Ã¦ŠŠµœ°»˜­µ®„¦¦¤ 4-13

ǦŠ„µ¦‹—´ šµÎ ‡¼¤n º°„µ¦˜¦ª‹­° ˜·—˜ŠÊ´ ¦³Â¨³°»ž„¦–År ¢¢jµ Ĝ¡œÊº š¸É°´œ˜¦µ¥š¤¸É ¸Å°¦³Á®¥…°Š­µ¦ÅªÅ¢

…o°˜n°šn°š¸É¤¸„µ¦Ž¸¨žj°Š„´œÂ„p­®¦º°Å°¦³Á®¥…°Š­µ¦ÅªÅ¢Á…oµ­¼nÁž¨º°„®n°®»o¤„´œ¦³Á·—
‹³˜o°ŠÅ¤n®nµŠ‹µ„Áž¨º°„®n°®o»¤¤µ„„ªnµ 45 ÁŽœ˜·Á¤˜¦ ¨³™oµ°»ž„¦–ržj°Š„´œ„µ¦¦³Á·—˜·—
˜´ÊŠ°¥®n¼ µn Š„œ´ ŤÁn „·œ 45 ÁŽœ˜Á· ¤˜¦ „ÈŤ‹n εÁž}œ˜°o ŠÄo…°o ˜°n šn°Ž¸¨

¦ž¼ š¸É 4.7 „µ¦˜—· ˜Š´Ê °ž» „¦–…r o°˜°n Ž¸¨ (Sealing Fitting)
„µ¦Á—·œšn°¦o°¥­µ¥Å¢¢jµ˜n°ÁœÉº°Š¦³®ªnµŠ¡ºÊœš¸É°´œ˜¦µ¥Â¨³¡ºÊœš¸Éž¨°—£´¥ (Safety
Area) ‹³˜o°Š¤¸„µ¦˜·—˜´ÊŠ…o°˜n°šn°Ž¸¨„Ê´œ¦³®ªnµŠ…°Á…˜…°Š¡ºÊœš¸Éš´ÊŠ­°Š Á¡ºÉ°žj°Š„´œ¤·Ä®o„p­
®¦°º Å°¦³Á®¥…°Š­µ¦Å¢¢µj ŸnµœÅž­¦n¼ ³Å¢¢jµž¦³Á£ššÅ¸É ¤¤n „¸ µ¦žj°Š„´œ„µ¦¦³Á·—

¦¼žš¸É 4.8 „µ¦˜·—˜ÊŠ´ Sealing Fitting ¦³®ªnµŠ¡œºÊ š¸É°œ´ ˜¦µ¥ ¨³Å¤n°œ´ ˜¦µ¥
(„) ˜·—˜´ÊŠ Sealing Fitting „°n œÁ…µo ¡œÊº šÉ°¸ ´œ˜¦µ¥ž¦³Á£šš1¸É

(…) ˜—· ˜ŠÊ´ Sealing Fitting £µ¥Äœ¡ºœÊ š¸É°´œ˜¦µ¥ š¸É‹³˜°n Ş¥´Š¡ºœÊ š¸ÉŤn°´œ˜¦µ¥

­µÎ œ´„Áš‡ÃœÃ¨¥‡¸ ªµ¤ž¨°—£´¥ „¦¤Ã¦ŠŠµœ°»˜­µ®„¦¦¤ 4-14

ǦŠ„µ¦‹´—šµÎ ‡n¤¼ º°„µ¦˜¦ª‹­° ˜·—˜ŠÊ´ ¦³Â¨³°ž» „¦–År ¢¢jµ Ĝ¡Êºœš¸É°´œ˜¦µ¥š¸É¤Å¸ °¦³Á®¥…°Š­µ¦ÅªÅ¢

„µ¦Á—·œšn°¦o°¥­µ¥Ã—¥Å¤n¤¸„µ¦˜n°šn°Ÿnµœ­™µœš¸É°´œ˜¦µ¥Ã—¥šÉ¸ž¨µ¥šn°š´ÊŠ­°Š°¥¼n
®nµŠ‹µ„¡œÊº šÉ°¸ ´œ˜¦µ¥¤µ„„ªµn 30 ÁŽœ˜Á· ¤˜¦ Ťn‹µÎ Ážœ} ˜o°ŠÄo…o°˜n°š°n Ž¸¨

¦ž¼ šÉ¸ 4.9 „µ¦Á—·œš°n ¦°o ¥­µ¥Ã—¥Å¤n¤„¸ µ¦˜°n šn°Ÿµn œ­™µœšÉ¸°œ´ ˜¦µ¥

ž¦³Áš«Äœ­®£µ¡¥»Ã¦ž Ánœ  ¦É´ŠÁ«­ Á¥°¦¤´œ °·˜µ¨¸ ¨³­Ážœ ‹³Äo¤µ˜¦“µœ
CENELEC ŽÉ¹Š„ε®œ—Ä®očo­µ¥Å¢¢jµš¸É¤¸Œœªœ°¥nµŠœo°¥ 2 Ê´œ ¨³‹³˜o°Š¤¸„µ¦Ž¸¨—oª¥
­µ¦ž¦³„°š¸É­µ¤µ¦™žj°Š„´œÂ„p­®¦º°Å°¦³Á®¥…°Š­µ¦ÅªÅ¢Å¤nÄ®oÁ…oµÅž—oµœÄœÁž¨º°„®»o¤
°»ž„¦–rÅ¢¢jµ®¦º°„¨n°Š˜n°­µ¥Å¢¢jµÅ—o ­µ¦œÊ¸‹³˜o°Ššœ‡ªµ¤¦o°œ‹µ„„µ¦¦³Á·—£µ¥Äœ
°»ž„¦–ržj°Š„´œ„µ¦¦³Á·——oª¥ …o°—¸…°Š„µ¦Á—·œ­µ¥Å¢¢jµÂœÊ¸„ȇº° ‡nµÄo‹nµ¥˜Éε¨³Å¤n
¥nŠ» ¥µ„Äœ„µ¦˜—· ˜Ê´Š ¨³œÊ宜´„Áµ ˜¤n …¸ °o Á­¥¸ ‡°º Ť­n µ¤µ¦™šœ¦´Â¦Š„¦³Âš„Å—o

¦¼žš¸É 4.10 „µ¦˜·—˜Ê´Š­µ¥Å¢Äœž¦³Áš«Äœ„¨»n¤¥»Ã¦ž 4-15

­Îµœ´„Áš‡ÃœÃ¨¥‡¸ ªµ¤ž¨°—£´¥ „¦¤Ã¦ŠŠµœ°»˜­µ®„¦¦¤

ǦŠ„µ¦‹´—šÎµ‡¤¼n °º „µ¦˜¦ª‹­° ˜·—˜Š´Ê ¦³Â¨³°»ž„¦–År ¢¢jµ Ĝ¡œÊº šÉ¸°œ´ ˜¦µ¥š¸É¤¸Å°¦³Á®¥…°Š­µ¦ÅªÅ¢

ž¦³Áš«°´Š„§¬ ‹³Äo¤µ˜¦“µœ IEC ŽÉ¹Š„ε®œ—Ä®očo­µ¥Å¢¢jµšÉ¸¤¸Á„¦µ³Á®¨È„
(Armor) ¨³‹³˜o°Š¤¸„µ¦Ž¸¨—oª¥­µ¦ž¦³„°š¸É­µ¤µ¦™žj°Š„´œÂ„p­®¦º°Å°¦³Á®¥…°Š­µ¦
ŪŢŤÄn ®oÁ…µo Ş—µo œÄœÁž¨º°„®»o¤°»ž„¦–rÅ¢¢jµ®¦º°„¨n°Š˜n°­µ¥Å¢¢jµÅ—o ­µ¦œÊ¸‹³˜o°Ššœ
‡ªµ¤¦o°œ‹µ„„µ¦¦³Á·—£µ¥Äœ°»ž„¦–ržj°Š„´œ„µ¦¦³Á·——oª¥ …o°—¸…°Š„µ¦Á—·œ­µ¥Å¢¢jµ
œÊ¸„ȇº° ‡nµÄo‹nµ¥žµœ„¨µŠÂ˜n­µ¤µ¦™šœ„µ¦„¦³Âš„šµŠ„¨Å—o ץŤn¥n»Š¥µ„Äœ„µ¦
˜·—˜´ÊŠ ˜n¤¸…o°Á­¸¥‡º°Á„¦µ³Á®¨È„‹³Áž}œ˜´ªœÎµÅ¢¢jµšÉ¸—¸ —´ŠœÊ´œ™oµÅ¤n¤¸„µ¦˜n°„¦µª—ršÉ¸—¸°µ‹
Á„—· „¦³Â­Å¢¢µj Á®œÉ¸¥ªœµÎ £µ¥ÄœÁ„¦µ³Á®¨„È ŗo

¦ž¼ š¸É 4.11 „µ¦˜—· ˜ÊŠ´ ­µ¥Å¢Äœž¦³Áš«°Š´ „§¬

„µ¦Á—œ· ­µ¥Å¢¢µj ץŤnčšn n°¦°o ¥­µ¥‹³˜o°Šžj°Š„´œÂ¦Š—¹Š¦´ÊŠ­µ¥Å¢¢jµÅ¤nÄ®o®¨»—®¦º°
…¥´Å—o ×¥„µ¦Äož¨°„…°o ˜°n ­µ¥Å¢ (Cable Grand) ªn ¥¥¹—­µ¥Å¢¢jµÄ®¤o ¸‡ªµ¤¤œÉ´ ‡Š

­µÎ œ„´ Áš‡ÃœÃ¨¥‡¸ ªµ¤ž¨°—£¥´ „¦¤Ã¦ŠŠµœ°»˜­µ®„¦¦¤ 4-16

ǦŠ„µ¦‹—´ šµÎ ‡¤n¼ °º „µ¦˜¦ª‹­° ˜·—˜ÊŠ´ ¦³Â¨³°»ž„¦–rÅ¢¢jµ Ĝ¡Êœº šÉ¸°œ´ ˜¦µ¥š¤¸É ¸Å°¦³Á®¥…°Š­µ¦ÅªÅ¢

¦¼žšÉ¸ 4.12 …°o ˜n°Á‡Á¨· 4-17

­µÎ œ„´ Áš‡ÃœÃ¨¥‡¸ ªµ¤ž¨°—£´¥ „¦¤Ã¦ŠŠµœ°˜» ­µ®„¦¦¤

ǦŠ„µ¦‹´—šÎµ‡n¤¼ º°„µ¦˜¦ª‹­° ˜·—˜Š´Ê ¦³Â¨³°ž» „¦–rÅ¢¢µj Ĝ¡œºÊ šÉ¸°´œ˜¦µ¥š¤É¸ ¸Å°¦³Á®¥…°Š­µ¦ÅªÅ¢

4.4 ˜ª´ °¥nµŠ¨„´ ¬–³°ž» „¦–År ¢¢µj œ·—ž°j Š„´œ„µ¦¦³Á—·

˜µ¦µŠšÉ¸ 4.1 ˜ª´ °¥nµŠ¨„´ ¬–³°ž» „¦–rÅ¢¢µj œ—· žj°Š„´œ„µ¦¦³Á—· „µ¦žj°Š„œ´ ­´¨„´ ¬–r
œ·— ¦¼ž
Increased Safety EEx e
ǤŢ “e”

Flameproof “d” EEx d

Flameproof “d” EEx d
ž¨Ë„´
­ª·˜r Intrinsic Safe “i” EEx i

and
EEx d

Flameproof “d”
Flameproof “d” EEx d

Increased Safety EEx e
“e”

Flameproof “d” EEx d

­Îµœ„´ Áš‡ÃœÃ¨¥‡¸ ªµ¤ž¨°—£´¥ „¦¤Ã¦ŠŠµœ°»˜­µ®„¦¦¤ 4-18

ǦŠ„µ¦‹´—šµÎ ‡¼n¤º°„µ¦˜¦ª‹­° ˜·—˜Š´Ê ¦³Â¨³°ž» „¦–rÅ¢¢µj Ĝ¡œÊº š¸É°´œ˜¦µ¥šÉ¸¤¸Å°¦³Á®¥…°Š­µ¦ÅªÅ¢

œ—· ¦ž¼ „µ¦žj°Š„´œ ­´¨„´ ¬–r

­ª˜· r Increased Safety EEx e
‡ª‡»¤ “e”

Flameproof “d” EEx d

„¨°n Š˜°n Increased Safety EEx e
­µ¥ “e”

…o°˜°n Á…µo Flameproof “d” EEx d
®´ªÁ‡Á¨·
Increased Safety EEx e
“e”

Flameproof “d” EEx d

Motor
Starter Flameproof “d” EEx d

­µÎ œ´„Áš‡ÃœÃ¨¥‡¸ ªµ¤ž¨°—£¥´ „¦¤Ã¦ŠŠµœ°»˜­µ®„¦¦¤ 4-19

ǦŠ„µ¦‹—´ šÎµ‡¤n¼ °º „µ¦˜¦ª‹­° ˜·—˜ŠÊ´ ¦³Â¨³°ž» „¦–rÅ¢¢jµ Ĝ¡ºÊœš¸É°´œ˜¦µ¥š¸É¤Å¸ °¦³Á®¥…°Š­µ¦ÅªÅ¢

œ·— ¦ž¼ „µ¦ž°j Š„œ´ ­´¨„´ ¬–r

„¨o°ŠªŠ‹¦ Increase Safety EEx e
žd— “e”

ŸŠ Flameproof “d” EEx d
‡ª‡»¤

Electronic Nonincendive “n” EEx n
Siren Nonincendive “n” EEx n

Alarm
Siren

­µÎ œ´„Áš‡ÃœÃ¨¥‡¸ ªµ¤ž¨°—£´¥ „¦¤Ã¦ŠŠµœ°»˜­µ®„¦¦¤ 4-20

ǦŠ„µ¦‹´—šµÎ ‡n¤¼ º°„µ¦˜¦ª‹­° ˜·—˜Š´Ê ¦³Â¨³°»ž„¦–År ¢¢µj Ĝ¡œºÊ šÉ¸°´œ˜¦µ¥šÉ¤¸ Ÿ °¦³Á®¥…°Š­µ¦ÅªÅ¢

œ—· ¦ž¼ „µ¦žj°Š„´œ ­´ ¨´„¬–r
Flameproof “d” EEx d
­ª·˜r
‡ª‡»¤

Á˜oµ¦´ Increased Safety EEx ed
Á˜oµÁ­¸¥ “e” Flameproof
“d”
°»ž„¦–r
„µ¦Á—·œšn° Flameproof “d” EEx d+e
Increased Safety
Round “e”
Box
Pull Box Increased Safety Class
“e” “d” I,DivI,DivII,

Group C,D
Flameproof “d” Class
“e” I,DivI,DivII,

Group C,D

­Îµœ„´ Áš‡ÃœÃ¨¥‡¸ ªµ¤ž¨°—£´¥ „¦¤Ã¦ŠŠµœ°˜» ­µ®„¦¦¤ 4-21

ǦŠ„µ¦‹—´ šµÎ ‡¼n¤º°„µ¦˜¦ª‹­° ˜·—˜´ÊŠ¦³Â¨³°ž» „¦–rÅ¢¢µj Ĝ¡ºÊœšÉ¸°´œ˜¦µ¥šÉ¤¸ ¸Å°¦³Á®¥…°Š­µ¦ÅªÅ¢

œ·— ¦ž¼ „µ¦žj°Š„œ´ ­´¨„´ ¬–r

Sealing Flameproof “d” Class
Fitting “e” I,DivI,DivII,

„¨n°Š Group C,D
­ª˜· r
Flameproof “d” Class
„¨n°ŠÁ¦„ “e” I,DivI,DivII,
Á„°¦r
Group C,D

Flameproof “d” Class
“e” I,DivI,DivII,

Group C,D

˜o¼Á¦„
Á„°¦r Increased Safety Class
“e” “d” I,DivI,DivII,

Group C,D
ǤŢ

Flameproof “d” Class
“e” I,DivI,DivII,

Group C,D

Increased Safety Class

“e” “d” I,DivI,DivII,

Group C,D

Push Increased Safety Class
Button
“e” “d” I,DivI,DivII,
­µÎ œ„´ Áš‡ÃœÃ¨¥‡¸ ªµ¤ž¨°—£´¥ „¦¤Ã¦ŠŠµœ°˜» ­µ®„¦¦¤
Group C,D

4-22

ǦŠ„µ¦‹´—šÎµ‡¼n¤º°„µ¦˜¦ª‹­° ˜·—˜Š´Ê ¦³Â¨³°»ž„¦–rÅ¢¢µj Ĝ¡ºÊœšÉ¸°´œ˜¦µ¥šÉ¸¤¸Å°¦³Á®¥…°Š­µ¦ÅªÅ¢

œ—· ¦ž¼ „µ¦ž°j Š„œ´ ­´ ¨´„¬–r
Junction
Flameproof “d” Class
Box “e” I,DivI,DivII,

ǤŢ Group C,D
¢¨°¼ °Á¦­
Flameproof “d” Class
ÁŽœ˜r “e” I,DivI,DivII,

Group C,D

Flameproof “d” Class
“e” I,DivI,DivII,

Group C,D

­Îµœ„´ Áš‡ÃœÃ¨¥‡¸ ªµ¤ž¨°—£¥´ „¦¤Ã¦ŠŠµœ°»˜­µ®„¦¦¤ 4-23

ǦŠ„µ¦‹´—šÎµ‡n¤¼ °º „µ¦˜¦ª‹­° ˜·—˜ÊŠ´ ¦³Â¨³°ž» „¦–År ¢¢jµ Ĝ¡œºÊ š¸É°œ´ ˜¦µ¥šÉ¤¸ Ÿ °¦³Á®¥…°Š­µ¦ÅªÅ¢

ššÉ¸ 5
„µ¦žj°Š„´œ„µ¦‹»—¦³Á·—‹µ„Å¢¢jµ­™˜· ¥r

Å¢¢jµ­™·˜¥r (Static Electricity) ®¦º°„µ¦Á„·—ž¦³‹»Å¢¢jµ­™·˜¥r (Static Charge) Áž}œ
ž{®µšÉ¸­Îµ‡´Á¦Éº°Š®œÉ¹Š­Îµ®¦´¡Êºœš¸ÉšÉ¸¤¸„µ¦Äo®¦º°™nµ¥Áš­µ¦ÅªÅ¢ ‹µ„…o°¤¼¨Äœ°—¸˜­µÁ®˜»
…°Š°»´˜·Á®˜»„µ¦Á„·—Á¡¨·ŠÅ®¤o­nªœ®œÉ¹ŠÁ„·—‹µ„„µ¦­žµ¦r„…°Šž¦³‹»Å¢¢jµ­™·˜¥r —´Šœ´Êœ
œ°„‹µ„„µ¦°°„˜·—˜Ê´Š¦³Å¢¢jµÁ¡ºÉ°žj°Š„´œ„µ¦¦³Á·—(Explosion Protection) ¨oª
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ž¦³‹Å» ¢¢µj ­™˜· ¥°r „¸ —ªo ¥

5.1 ž‹{ ‹´¥š„ɸ °n Ä®oÁ„—· „µ¦‹»—˜—· ¦³Á—· Áœ°Éº Š‹µ„Å¢¢µj ­™·˜¥r

­µÁ®˜­» µÎ ‡´š¸ÉšµÎ Ä®Áo „—· Å¢¢µj ­™˜· ¥rÁ„—· …œ¹Ê ŗo‹µ„ž{‹‹´¥®¨µ¥ž¦³„µ¦ Á¡ºÉ°Ä®oÁ…oµÄ‹Å—o
—…¸ ʜ¹ ‹³˜o°ŠÁ…oµÄ‹Ã‡¦Š­¦oµŠ…°Š­­µ¦ (Matter) šÉž¸ ¦µ„’°¥¼¦n °˜´ªÁ¦µÅ¤ªn nµ‹³ž¦µ„’°¥¼nĜ¦¼žÄ—
Ánœ …°ŠÂ…ÈŠ …°ŠÁ®¨ª ®¦º°„pµŽ ¤o‹³¤¸­™µœ³Áž}œ­µ¦ž¦³„° (Compound) ®¦º°›µ˜»
(Element) „Șµ¤ ­­µ¦‹³ž¦³„°ž¦³„°—oª¥ °œ»£µ‡š¸ÉÁ¨È„š¸É­»—‡º°Ã¤Á¨„»¨ (Molecule) Ž¹ÉŠ
äÁ¨„»¨ž¦³„°—oª¥ ›µ˜»˜nµŠÇ š¸É¤µ¦ª¤˜´ª„´œÂ¨oª¤¸‡»–­¤´˜·Â˜„˜nµŠÅž‹µ„›µ˜»Á—·¤ ›µ˜»
ž¦³„°—oª¥ °³˜°¤ (Atom) Ž¹ÉŠÁž}œ°œ»£µ‡š¸ÉÁ¨È„šÉ¸­»—…°Š›µ˜»Â˜n¥´Š‡Š¤¸‡»–­¤´˜·…°Š›µ˜»
œÊ´œÇ °¥n¼ °³˜°¤ž¦³„°—oª¥œ·ª˜¦°œ (Neutron) Ž¹ÉŠ¤¸‡»–­¤´˜·Áž}œ„¨µŠšµŠÅ¢¢jµÃž¦˜¦°œ
(Protron) ¨³°·Á¨‡˜¦°œ (Electron) ×¥œ·ª˜¦°œÂ¨³Ãž¦˜¦°œ‹³¦ª¤˜´ª„´œ°¥¼n˜¦Š„¨µŠ…°Š
°³˜°¤ ×¥¤¸°·Á¨‡˜¦°œªÉ·Š°¥n¼¦°œ°„°·Á¨‡˜¦°œ š¸É°¥n¼ªŠœ°„­»— (Valence Shell) Á¦µ
Á¦¸¥„ªnµªµÁ¨œŽr°·Á¨‡˜¦°œ (Valence Electron) °³˜°¤‹³„¨µ¥Áž}œž¦³‹»¨ (Negative
Charge) Á¤Éº°¦´°·Á¨‡˜¦°œÁ¡É·¤Á…oµ¤µ ¨³‹³„¨µ¥Áž}œž¦³‹»ª„ (Positive Charge) Á¤Éº°
­¼ Á­¥¸ °Á· ¨‡˜¦°œÅž

Å¢¢jµ­™·˜¥rÁž}œ­·ÉŠš¸É¤°ŠÅ¤nÁ®ÈœÂ˜nÁ„·—…ʹœ¦°˜´ªÁ¦µ˜¨°—Áª¨µ Ž¹ÉŠ‹³Â­—ŠŸ¨°°„¤µ
Ä®oÁ¦µ¦´¦Å¼o —o Áœn „µ¦ÄÅo ¤n ¦¦š—´ ¡¨µ­˜·„¤µÁ­¸¥—­¸„´Á­oœŸ¤œ®´ª‹³Á„·—Å¢¢jµ­™·˜¥r…¹Êœœ
Ťo¦¦š´—œœÊ´ ‹œ­µ¤µ¦™—Š¹ —¼—„¦³—µ¬·ÊœÁ¨È„Çŗ,o „µ¦Á„—· „µ¦˜·—…—´ …°Š„¦³—µ¬ÄœÁ‡¦Éº°Š™µn ¥
Á°„­µ¦, „µ¦™nµ¥Ášž¦³‹»Å¢¢jµ‹µ„¤º°‡œÅž¥´ŠÂŸŠªŠ‹¦°·Á¨‡š¦°œ·„­r‹œÁ„·—‡ªµ¤Á­¸¥®µ¥
¨³šÁɸ ®ÈœÅ—o ´—‡°º ž¦µ„’„µ¦–r¢jµŸµn Áž}œ˜œo

ž{®µ…°ŠÅ¢¢jµ­™·˜¥r¤¸®¨µ„®¨µ¥Â¨³šÉ¸­Îµ‡´Áž}œ°Š‡rž¦³„°š¸ÉšÎµÄ®oÁ„·—°´œ˜¦µ¥
‹µ„Á¡¨·ŠÅ®¤o¨³„µ¦¦³Á·— ŽÉ¹Š„µ¦žj°Š„´œÅ¤nÄ®oÁ„·—Å¢¢jµ­™·˜¥rÁž}œÁ¦Éº°Š¥µ„ÁœºÉ°Š‹µ„
®¨nŠ„εÁœ·—…°ŠÅ¢¢jµ­™·˜¥rœÊ´œ¤¸¤µ„¤µ¥ „µ¦Á®œ¸É¥ªœÎµ‹µ„­œµ¤Å¢¢jµ(Electromagnetic
Field) ¨³„µ¦Á­¸¥—­¸…°Šª´˜™»‹œÁ„·—„µ¦™nµ¥Ášž¦³‹»Å¢¢jµ¦³®ªnµŠ„´œ (Triboelectric) Áž}œ

­µÎ œ„´ Áš‡ÃœÃ¨¥‡¸ ªµ¤ž¨°—£´¥ „¦¤Ã¦ŠŠµœ°»˜­µ®„¦¦¤ 5-1

ǦŠ„µ¦‹´—šÎµ‡n¤¼ º°„µ¦˜¦ª‹­° ˜·—˜´ŠÊ ¦³Â¨³°»ž„¦–År ¢¢jµ Ĝ¡ÊºœšÉ¸°œ´ ˜¦µ¥š¸¤É Ÿ °¦³Á®¥…°Š­µ¦ÅªÅ¢

­µÁ®˜»­µÎ ‡´ šÉš¸ µÎ Ä®oÁ„·—„µ¦­³­¤…°Šž¦³‹»Å¢¢jµ­™·˜¥r…ʹœÅ—o Ánœ „µ¦™nµ¥Áš­µ¦ÅªÅ¢Ÿnµœšn°
„µ¦ž~{œŸ­¤­µ¦ „µ¦„ªœ­µ¦ „µ¦Ÿ­¤­µ¦Á‡¤¸ „µ¦…´—™¼šÎµ‡ªµ¤­³°µ— „µ¦Á­¸¥—­¸…°Š
­µ¥¡µœ¨µÎ Á¨¸¥Š „µ¦Œ¸—¡œn ­µ¦—ªo ¥Â¦Š—´œ­¼Š Áž}œ˜œo —´Šœ´œÊ „µ¦ž’·´˜·ŠµœÄœ¨´„¬–³—´Š„¨nµª
‹¹Š°µ‹šÎµÄ®oÁ„·—„µ¦­³­¤…°ŠÅ¢¢jµ­™·˜¥r ¨³Á¤ºÉ°ž¦³‹»Å¢¢jµšÉ¸­³­¤¤¸¤µ„¡° ‹³Á„·—‡ªµ¤
Á­É¥¸ ŠšÉ¸‹³Á„·—„µ¦­žµ¦r„…°Šž¦³‹»Å¢¢jµÅž¥´Š˜´ªœÎµÅ¢¢jµ°ºÉœÅ—o Ž¹ÉŠ®µ„¡¨´ŠŠµœ…°Š„µ¦­žµ¦r„
­¼Š¡°„°È µ‹­nŠŸ¨Ä®Áo „—· „µ¦‹—» ˜—· ­µ¦ÅªÅ¢Â¨³Ážœ} Á®˜»Ä®Áo „—· °´‡‡£¸ ¥´ …œÊ¹ ŗo

ª´­—»š¸ÉÁž}œ˜´ªœÎµÅ¢¢jµ (Conductive Material) ‹³¤¸°·Á¨‡˜¦°œÁ‡¨ºÉ°œÅž¤µÅ—o°¥nµŠ
°·­¦³ Ĝ…–³š¸Éª´­—»š¸ÉÁž}œŒœªœ (Insulating Material) °·Á¨‡˜¦°œÅ¤n­µ¤µ¦™Á‡¨ºÉ°œš¸ÉޤµÅ—o
°¥nµŠ­³—ª„ ÁœÉº°Š‹µ„¦Š¡´œ›³¦³®ªnµŠœ·ªÁ‡¨¸¥­„´°·Á¨‡˜¦°œ¤¸‡nµ¤µ„ Ĝ„¦–¸š¸Éª´­—»Œœªœ
Ážœ} …°ŠÁ®¨ª °³˜°¤ŽÉŠ¹ „¨µ¥Áž}œž¦³‹»‹³™¼„¦ŠŸ¨´„Ä®o°°„¤µ°¥¼n¦·Áª–Ÿ·ª®œoµ…°Š…°ŠÁ®¨ª
œœÊ´ ŽŠ¹É Á¦¸¥„ªnµ ž¦³‹»œŸ·ª®œoµ (Surface Charge) ¨³Á¤Éº°ž¦³‹»œ·—Á—¸¥ª„´œ¤µ¦ª¤„´œ°¥¼n¤µ„
…¹Êœ „È‹³Á„·—„µ¦Á®œ¸É¥ªœÎµÄ®ož¦³‹»Å¢¢jµ˜¦Š…oµ¤Á…oµ¤µ°¥¼nĄ¨o Ánœ Á¤Éº°¤¸„µ¦Å®¨…°ŠœÊε¤´œš¸É¤¸
ž¦³‹»ª„Ÿnµœšn° ž¦³‹»Å¢¢jµª„œŸ·ªœ°„…°Š¨ÎµœÊε¤´œ ‹³Á®œ¸É¥ªœÎµÄ®ož¦³‹»¨œŸœ´Ššn°
Á…oµ¤µ°¥¼nĄ¨o ž¦³‹Å» ¢¢µj ¨œš°n ­µ¤µ¦™Á‡¨É°º œš¸°É ¥nµŠ°­· ¦³ ž¦³‹Å» ¢¢jµ‹¹Š­µ¤µ¦™­žµ¦r„…oµ¤
Ş¥Š´ ª´­—»˜´ªœÎµ°œÉº š¸É°¥Än¼ „¨oŗo ¡¨Š´ Šµœ‹µ„„µ¦­žµ¦r„°µ‹¤µ„¡°Ä®oÁ„·—„µ¦‹»—˜·—ŢŰœÎʵ¤´œ
šž¸É œ°¥Ä¼n œ°µ„µ«Å—o

5.2 °Š‡žr ¦³„°šš¸É εĮoÁ„·—­£µ¡„µ¦–šr ¸ÉÁžœ} °´œ˜¦µ¥

„µ¦Á„·—Á¡¨·ŠÅ®¤o‹³˜o°Š¤¸°Š‡rž¦³„°®¨´„ 3 °¥nµŠ ‡º° ÁÊº°Á¡¨·Š ž¦³„µ¥Å¢/‡ªµ¤
¦o°œ ¨³°°„Ž·Á‹œ „µ¦žj°Š„´œ„µ¦¦³Á·—Äœ­™µœš¸Éš¸É¤¸Å°¦³Á®¥…°Š­µ¦ÅªÅ¢¦´ÉªÅ®¨°¥n¼Á­¤°
Á¦µ‹³˜o°Š®¨¸„Á¨É¸¥Š„µ¦Á„·—ž¦³„µ¥Å¢®¦º°‡ªµ¤¦o°œ­¼Š ¨³ž¦³„µ¥Å¢‹µ„„µ¦­žµ¦r„…°Š
ž¦³‹»Å¢¢jµ­™·˜¥r„ÈÁž}œ­µÁ®˜»®œÉ¹Šš¸ÉšÎµÄ®oÁ„·—Á¡¨·ŠÅ®¤o…ʹœÅ—o Á¡ºÉ°Ä®oÁ…oµÄ‹­™µœ„µ¦–ršÉ¸‹³šÎµ
Ä®Áo „—· ž¦³„µ¥Å¢°œ´ ˜¦µ¥‹µ„Å¢¢µj ­™˜· ¥r Á¦µ‹³˜o°Š¡·‹µ¦–µž{‹‹¥´ ˜µn ŠÇš­¸É ε‡´ —´ŠœÊ¸

5.2.1 „µ¦­³­¤…°Šž¦³‹» (Accumulation of Charge)
‡ªµ¤­µ¤µ¦™Äœ„µ¦œÎµÅ¢¢jµ…°ŠœÎʵ¤´œÁºÊ°Á¡¨·Š ¡·‹µ¦–µ‹µ„‡nµ‡ªµ¤œÎµ

(Conductivity) Ž¹ÉŠ¤¸®œnª¥Áž}œ picoSiemens/meter (ps/m) ˜´ª°¥nµŠÁnœœÊε¤´œ—¸ÁŽ¨¤¸‡nµ‡ªµ¤
œÎµž¦³¤µ– 25 ps/m ‹³­µ¤µ¦™­³­¤ž¦³‹»Å¢¢jµÅ—o¤µ„ —´ŠœÊ´œ„µ¦™nµ¥ÁšœÊε¤´œŸnµœšn° ‹¹Š
‹ÎµÁž}œ˜o°ŠÄo°´˜¦µ„µ¦Å®¨˜ÎɵÁ¡Éº°žj°Š„´œ„µ¦Á®œÉ¸¥ªœÎµž¦³‹»Å¢¢jµÄ®oÁ„·—ž¦³‹»Å¢¢jµ˜¦Š…oµ¤
…Êœ¹ œšn°‹³°µ‹šµÎ Ä®oÁ„—· ‡ªµ¤Á­¸É¥ŠÄœ„µ¦Á„—· ­žµ¦r„Åž¥Š´ ǦŠ­¦µo Šš¸ÁÉ ž}œ˜ª´ œµÎ Å¢¢jµ°ºÉœšÉ¸Á…oµ
¤µÄ„¨o

­µÎ œ„´ Áš‡ÃœÃ¨¥‡¸ ªµ¤ž¨°—£´¥ „¦¤Ã¦ŠŠµœ°˜» ­µ®„¦¦¤ 5-2

ǦŠ„µ¦‹—´ šÎµ‡¤¼n º°„µ¦˜¦ª‹­° ˜·—˜ŠÊ´ ¦³Â¨³°ž» „¦–rÅ¢¢µj Ĝ¡œÊº šÉ¸°´œ˜¦µ¥š¸É¤Å¸ °¦³Á®¥…°Š­µ¦ÅªÅ¢

Á¦µ­µ¤µ¦™ÂnŠ˜µ¤‡»–­¤´˜·„µ¦­³­¤ž¦³‹»Å¢¢jµ…°ŠœÊε¤´œÁºÊ°Á¡¨·Šœ·—
˜nµŠÇ ˜µ¤‡»–­¤´˜·„µ¦œÎµÅ¢¢jµÅ—o ×¥¡·‹µ¦–µªnµœÊε¤´œšÉ¸¤¸‡nµ‡ªµ¤œÎµ¤µ„„ªnµ 50 ps/m
‹´—Áž}œœÊε¤´œšÉ¸Å¤n­³­¤ž¦³‹»Å¢¢jµ (Non-accumulator Oils) ¨³œÊε¤´œšÉ¸¤¸‡nµ‡ªµ¤œÎµœo°¥„ªnµ
50 ps/m ‹—´ Ážœ} œÊ夜´ šÅɸ ¤n­³­¤ž¦³‹Å» ¢¢jµ (Accumulator Oils) ŗo—´Šœ¸Ê

˜´ª°¥µn Š…°ŠœÎµÊ ¤´œšÉŸ ¤n­³­¤ž¦³‹Å» ¢¢jµ (Non-accumulator Oils) ŗo„n
- œÎʵ¤´œ—· (Crude oils)
- œÊµÎ ¤œ´ —Á¸ Ž¨—µÎ (Black diesel oils)
- œÎµÊ ¤´œÁ˜µ (Residual fuel oils)
- °­¢¨{ ˜r (Asphalts)

˜ª´ °¥µn Š…°ŠœÎʵ¤œ´ š­É¸ ³­¤ž¦³‹Å» ¢¢µj (Accumulator Oils) ŗo„n
- œµÊÎ ¤´œÂœŽœ· (Natural gasolines)
- œÊε¤´œÁ‹š (Jet fuels)
- œÎµÊ ¤œ´ „µp — (Kerosenes)
- œÊ夜´ ¦°o œ (Heating oils)
- Ūš­r žd¦˜· (White spirits)
- œÊµÎ ¤´œ—¸ÁŽ¨ (Clean diesel oils)
- œµÎÊ ¤´œ¤°Á˜°¦r¨³Á‡¦°ºÉ Šœ· (Motor and aviation gasolines)
- œÎµÊ ¤´œ®¨°n ¨œÉº (Lubricating oils)

™´Š¦¦‹»ÁÊº°Á¡¨·ŠÁ®¨ª ®¦º°šn°š¸ÉčošÎµ„µ¦™nµ¥Áš­µ¦ÅªÅ¢‡ª¦šÎµ‹µ„ª´­—»š¸ÉœÎµ
Å¢¢jµÅ—oÁ¡ºÉ°žj°Š„´œž{®µ„µ¦­³­¤ž¦³‹»Å¢¢jµ­™·˜¥rœ¡ÊºœŸ·ª‹»—Ä—šÉ¸®œÉ¹Š ¨³™oµÁ„·—ž¦³‹»
Å¢¢jµ…ʹœœª­´ —» ž¦³‹»œ´Êœ„È­µ¤µ¦™™nµ¥ÁšÅž¥Š´ ¦Á· ª–°Éœº Çŗ°o ¥µn Š¦ª—Á¦Èª

5.2.2 „µ¦­žµ¦„r ‹µ„ž¦³‹»Å¢¢jµ­™·˜¥r (Electrostatic Discharge : ESD)

Á¤ºÉ°ª´˜™»­°Š·ÊœŽÉ¹Š¤¸ž¦³‹»Å¢¢jµœ·—˜¦Š…oµ¤­³­¤°¥¼nÁ…oµ¤µ°¥n¼Ä„¨o„´œ ‹³Á„·—
ž¦µ„’„µ¦–rÁ®¤º°œ‡µžµŽ·Á˜°¦r „¨nµª‡º° ž¦³‹»Å¢¢jµ˜nµŠœ·—„´œ‹³™¼„nŠÂ¥„—oª¥n°Š
°µ„µ« (Air Gap) ­œµ¤Å¢¢jµšÉ¸Á„·—‹µ„ž¦³‹»Å¢¢jµ‹³šÎµÄ®oäÁ¨„»¨…°Š°µ„µ«Â˜„˜´ªÁž}œ
Å°°œ (Ionization) ¨³Äœš¸É­»—ž¦³‹»Å¢¢jµ­™·˜¥r„È‹³­µ¤µ¦™…oµ¤Ÿnµœn°ŠªnµŠœ´ÊœÅ—o Ž¹ÉŠÁ¦¸¥„ªnµ
„µ¦Á„·—­žµ¦r„‹µ„ž¦³‹»Å¢¢jµ­™·˜¥r „µ¦ž¨—ž¨n°¥¡¨´ŠŠµœ‡ªµ¤¦o°œ‹µ„„µ¦­žµ¦r„°µ‹­¼Š
Á¡¸¥Š¡°šÉ‹¸ ³‹»—˜—· Ţۦ³Á®¥…°Š­µ¦ÅªÅ¢šÉŸ¸ ­¤°¥¼nĜ°µ„µ«‹œÁ„·—Á¡¨·ŠÅ®¤o…ʹœÅ—o ¨´„¬–³
…°Š„µ¦­žµ¦r„Äœ¨´„¬–³œÊ­¸ Š´ Á„˜Å—°o ¥µn Š´—Á‹œ‹µ„„¦–„¸ µ¦Á„·—¢µj Ÿµn Á¤Éº°ž¦³‹»Å¢¢jµ¨‹µ„
„o°œÁ¤‰Á‡¨ºÉ°œŸnµœ°µ„µ«¨Š­¼n¡Êºœ—·œ ¡¨´ŠŠµœ‹µ„„µ¦­žµ¦r„˜n¨³‡¦´ÊŠ‹³­µ¤µ¦™‹»—˜·—Å¢
Å°¦³Á®¥…°Š­µ¦ÅªÅ¢Å—o®¦º°Å¤n …¹Êœ°¥n¼„´œ·—…°Š­µ¦ÅªÅ¢ Ĝ˜µ¦µŠš¸É 5.1 ‹³Â­—Š˜´ª°¥nµŠ
‡µn ¡¨Š´ ŠµœÄœ„µ¦‹»—˜·—Ţۦ³Á®¥­µ¦ÅªÅ¢µŠœ·—

­µÎ œ„´ Áš‡ÃœÃ¨¥‡¸ ªµ¤ž¨°—£´¥ „¦¤Ã¦ŠŠµœ°»˜­µ®„¦¦¤ 5-3

ǦŠ„µ¦‹´—šµÎ ‡¼n¤º°„µ¦˜¦ª‹­° ˜·—˜ÊŠ´ ¦³Â¨³°»ž„¦–rÅ¢¢µj Ĝ¡Êœº š¸É°œ´ ˜¦µ¥š¸¤É Ÿ °¦³Á®¥…°Š­µ¦ÅªÅ¢

˜µ¦µŠš¸É 5.1 ‡nµ¡¨´ŠŠµœš‹É¸ »—˜—· Ţŗo Minimum Ignition Energy
Milijoules (Miliwatt – Seconds)
Flammable Material
0.017
Acetylene 0.017
Hydrogen 0.08
Ethylene 0.3
Methane
š¸É¤µ : Bureau of Mines RI 5671

5.3 „µ¦žj°Š„´œ„µ¦­žµ¦r„ (Prevention of Spark Discharge)

„µ¦žj°Š„´œ„µ¦­žµ¦r„‹µ„ž¦³‹Å» ¢¢µj ­™·˜¥r­µ¤µ¦™šÎµÅ—o×¥„µ¦Äo™´Š¦¦‹»Â¨³šn°œÎµ
­µ¦ÅªÅ¢ŽÉ¹Š­µ¤µ¦™œÎµÅ¢¢jµÅ—o ¨³„µ¦žj°Š„´œ„µ¦Á„·—ž¦³‹»Å¢¢jµ­³­¤œ¡ºÊœŸ·ªª´­—»˜´ªœÎµ
—´Š„¨nµªÃ—¥„µ¦˜n° µ„¨³˜n°¨Š—·œ (Bonding and Grounding) Ž¹ÉŠÁž}œ¤µ˜¦„µ¦žj°Š°´œ˜¦µ¥
‹µ„Å¢¢µj ­™·˜¥šr ­¸É ε‡´

„µ¦˜°n  µ„ ‡°º „µ¦ÁºÉ°¤˜n°„œ´ šµŠÅ¢¢µj ¦³®ªnµŠÃ‡¦Š­¦oµŠš¸ÉÁž}œ˜ª´ œÎµÅ¢¢µj 2 ­ªn œÁ…µo
—ªo ¥„´œÃ—¥Ä˜o ´ªœÎµÅ¢¢jµ …œµ—…°Š˜´ªœÎµÅ¢¢jµž¦³Á—Èœ­Îµ‡´ ˜n‡ªµ¤Â…Ȋ¦Š…°Šª´­—»˜´ªœÎµ
¨³‡ªµ¤ÂœÂœnœ…°Š®œoµ­´¤Ÿ´­…°Š‹»—˜n°Á¦ºÉ°Šš¸É˜o°ŠÄ®o‡ªµ¤­Îµ‡´¤µ„„ªnµ „µ¦˜n° µ„Ťn
­µ¤µ¦™Â„ož{®µ„µ¦­³­¤…°Šž¦³‹»Å¢¢jµ­™·˜¥rŗo ˜n‹³nª¥„¦³‹µ¥„µ¦­³­¤…°Šž¦³‹»
Å¢¢jµœÃ‡¦Š­¦oµŠ®œÉ¹ŠÇ Á¤Éº°¤¸„µ¦ÁºÉ°¤˜n°„´œšµŠÅ¢¢jµÂ¨oª«´„¥rÅ¢¢jµ…°ŠÃ‡¦Š­¦oµŠš´ÊŠ­°Š
‹³Ášµn „œ´ Áž}œ„µ¦„µÎ ‹—´ ‡ªµ¤Á­¥É¸ Š…°Š„µ¦™nµ¥Ášž¦³‹¦» ³®ªµn Šª˜´ ™»

„µ¦˜n°„¦µª—r ‡°º „µ¦„µ¦Áº°É ¤˜°n „œ´ šµŠÅ¢¢jµ¦³®ªnµŠÃ‡¦Š­¦oµŠš¸ÉÁž}œ˜´ªœÎµÅ¢¢jµ¨Š­¼n
¡œºÊ —·œÃ—¥Äo˜´ªœÎµÅ¢¢jµ „µ¦˜n°„¦µª—r­µ¤µ¦™Â„ož{®µ„µ¦­³­¤…°Šž¦³‹»Å¢¢jµ­™·˜¥rŗoœ
ª´­—»˜´ªœÎµÅ—o Á¡¦µ³„µ¦ÁºÉ°¤˜n°„´œšµŠÅ¢¢jµ‹³nª¥™nµ¥Ášž¦³‹»Å¢¢jµ¨Š­n¼¡ºÊœ—·œ šÎµÄ®o
«„´ ¥År ¢¢jµœÃ‡¦Š­¦µo Šœœ´Ê Ášnµ„´ ¡œÊº —·œ

­µÎ œ„´ Áš‡ÃœÃ¨¥‡¸ ªµ¤ž¨°—£´¥ „¦¤Ã¦ŠŠµœ°˜» ­µ®„¦¦¤ 5-4

ǦŠ„µ¦‹´—šµÎ ‡¼n¤°º „µ¦˜¦ª‹­° ˜·—˜´ÊŠ¦³Â¨³°»ž„¦–År ¢¢jµ Ĝ¡Êœº šÉ¸°œ´ ˜¦µ¥š¸¤É Ÿ °¦³Á®¥…°Š­µ¦ÅªÅ¢

CHARGED AND UNCHARGED BODIES INSULATED FROM

ª´˜™š» ¤É¸ ¸ž¦³‹» ª˜´ ™»šÉ¸Å¤n¤¸
šÉ¸ ¥„‹µ„ ž¦³‹»š¸ÉÂ¥„
¡œÊº —œ· ‹µ„¡Êœº —·œ

Ground

¦ž¼ š¸É 5.1 ­—Šª˜´ ™š» ¤É¸ ž¸ ¦³‹»Â¨³Å¤n¤ž¸ ¦³‹š» ¸ÂÉ ¥„‹µ„¡Êºœ—·œ

CHARGED AND UNCHARGED BODIES INSULATED FROM

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¦¼žš¸É 5.5 ­—Š„µ¦˜°n „¦µª—rš™¸É Š´ ¦¦‹»­µ¦ÅªÅ¢Â¨³š°n œµÎ ­µ¦Á¡º°É ž°j Š„´œ„µ¦­žµ¦r„‹µ„
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¦ž¼ šÉ¸ 5.6 ­—Š Heavy Duty Clamp with Tungsten Carbide Contact Á®¤µ³šÉ‹¸ ³Ä„o ´™´Š
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¦¼žšÉ¸ 5.7 ­—Š Medium Duty Clamp Á®¤µ³š‹É¸ ³Ä„o ´ ™Š´ Stainless Steel
¦¼žšÉ¸ 5.8 ­—Š Medium Duty Cast Aluminium Clamp Á®¤µ³šÉ‹¸ ³Äo„´ ™Š´ 讳Á‡¨º°­¸

¦¼žš¸É 5.9 ­—Š Clamp Á®¤µ³š‹¸É ³Ä­o µÎ ®¦´‡¸ ™»Š Type ‘C’ big bag

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1. „¨n°Š­ª˜· r‡ª‡»¤ Áž}œœ·—šœ„µ¦¦³Á·— (Explosion Proof)
2. čnšn°Ã¨®³žµœ„¨µŠ (Intermediate Metal Conduit : IMC ) šÉ¸­µ¤µ¦™šÎµ

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Sealing Fitting

Sealing Fitting

¦µ¥¨³Á°¥¸ —
1. ¤°Á˜°¦r ǤŢ ¨³„¨n°Š˜n°­µ¥ Áž}œœ·—šœ„µ¦¦³Á·— (Explosion
Proof)
2. čšn °n 讳žµœ„¨µŠ (Intermediate Metal Conduit : IMC ) šÉ¸­µ¤µ¦™šÎµ
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¢°¦r¤„µ¦˜¦ª‹­° - ®œoµ 1

°µ‡µ¦/¡ºœÊ š¸É .......................................................
­µ¦ÅªÅ¢ž¦³Á£šÂ„p­®¦°º Å°¦³Á®¥ (Flammable Gasses and Vapors)

[ ] Group A:
Acetylene

[ ] Group B: Ethylene oxcide Hydrogen Propylene oxcide
Butadiene

[ ] Group C: Cyclopropane Di-ethyl ether Dimethyl hydrazine
Acetaldehyde Hydrogen Cyanide Hydrogen Sulfide Methyl Ether
Ethylene
Methyl Mercaptan

[ ] Group D: Ammonia Amyl Alcohol Benzene
Acetone Butylene
Butane Gasoline Ethane Ethanol
Ethyl Chloride Isopropyl Acetate
Isopentane Hexanes Isobutene
Napthalene
Methyl Alcohol Paint solvents Liquified Petroleum Methane
Octanes Toluene
Propylene Gas (LPG)
Xylenes
Natural gas Neopentane

Pentanes Propane

Turpentine Vinyl chloride

®¤µ¥Á®˜» ­µ¦ÅªÅ¢š¸¤É ‡¸ –» ­¤´˜·šµŠÁ‡¤¸Ä„¨oÁ‡¥¸ Š„´ ­µ¦Äœ„¨¤»n ė „‡È ª¦‹—´ °¥¼nĜ„¨n¤» Á—¸¥ª„´œ

¢°¦r¤„µ¦˜¦ª‹­° - ®œµo 2

¡·‹µ¦–µ…°o ¤¼¨‡ªµ¤ž¨°—£´¥…°Š­µ¦ÅªÅ¢

1. ¦µ¥ºÉ°­µ¦ÅªÅ¢š¸É°µ‹Á„·—„µ¦¦É´ªÅ®¨ šÊ´Š‹µ„…Ê´œ˜°œ„µ¦šÎµŠµœž„˜· ¨³‹µ„„µ¦Á„·—°»´˜·Á®˜» :
…………………………………………………………………………………………………………………
2. ‡nµ Lower Explosive Limit (LEL) ¨³ Upper Explosive Limit (UEL) …°ŠÅ°¦³Á®¥­µ¦ÅªÅ¢ Ĝ…o°1
…………………………………………………………………………………………………………………
…………………………………………………………………………………………………………………
3. ‡nµ¦³—´°»–®£¼¤·˜ÉεšÉ¸­»—š¸ÉÅ°¦³Á®¥…°Š­µ¦ÅªÅ¢ (Auto-Ignition Temperature) Ĝ…o° 1 ­µ¤µ¦™¨»„
˜·—ŢŗÁo °Š :
…………………………………………………………………………………….………………….………..
4. ‡µn Vapor Density …°Š­µ¦ÅªÅ¢Äœ…°o 1 :
…………………………………………………………………………………………………………………
…………………………………………………………………………………………………………………

¦³—´ °–» ®£¤¼ „· µ¦šÎµŠµœ…°Š°»ž„¦–rÅ¢¢µj (Temperature Classes)

¡·‹µ¦–µÁ¨º°„°»ž„¦–rÅ¢¢jµš¤¸É ¸°»–®£¼¤·„µ¦šÎµŠµœ­¼Š­»—(Maximum operating Temperature of
device) Á¡É°º žj°Š„´œ¤·Ä®o„­p ®¦º°Å°¦³Á®¥…°Š­µ¦ÅªÅ¢Á„·—¨„» ˜—· ŢŗÁo °Š Á¤°Éº ­´¤Ÿ­´ ‡ªµ¤¦o°œ­Š¼

[ ] Class T1 °œ»µ˜Ä®Äo Åo —o ™oµÂ„p­®¦º°Å°¦³Á®¥…°Š­µ¦ÅªÅ¢Å¤­n µ¤µ¦™˜·—ŢŗoÁ°Šš°¸É –» ®£¤¼ ·
˜µÎÉ „ªnµ 450°C

[ ] Class T2 °œ»µ˜Ä®očoŗo ™oµÂ„p­®¦º°Å°¦³Á®¥…°Š­µ¦ÅªÅ¢Å¤n­µ¤µ¦™˜·—ŢŗoÁ°ŠšÉ¸°»–®£¼¤·
˜µÎÉ „ªnµ 300°C

[ ] Class T2A °œ»µ˜Ä®očoŗo ™oµÂ„p­®¦º°Å°¦³Á®¥…°Š­µ¦ÅªÅ¢Å¤n­µ¤µ¦™˜·—ŢŗoÁ°Šš¸É°»–®£¼¤·
˜µÎÉ „ªnµ 280°C

[ ] Class T2B °œ»µ˜Ä®očoŗo ™oµÂ„p­®¦º°Å°¦³Á®¥…°Š­µ¦ÅªÅ¢Å¤n­µ¤µ¦™˜·—ŢŗoÁ°Šš¸É°»–®£¼¤·
˜ÎµÉ „ªnµ 260°C

[ ] Class T2C °œ»µ˜Ä®očoŗo ™oµÂ„p­®¦º°Å°¦³Á®¥…°Š­µ¦ÅªÅ¢Å¤n­µ¤µ¦™˜·—ŢŗoÁ°ŠšÉ¸°»–®£¼¤·
˜É優µn 230°C

[ ] Class T2D °œ»µ˜Ä®očoŗo ™oµÂ„p­®¦º°Å°¦³Á®¥…°Š­µ¦ÅªÅ¢Å¤n­µ¤µ¦™˜·—ŢŗoÁ°ŠšÉ¸°»–®£¼¤·
˜Îɵ„ªµn 215°C

¢°¦¤r „µ¦˜¦ª‹­° - ®œµo 3

[ ] Class T3 °œ»µ˜Ä®očoŗo ™oµÂ„p­®¦º°Å°¦³Á®¥…°Š­µ¦ÅªÅ¢Å¤n­µ¤µ¦™˜·—ŢŗoÁ°Šš¸É°»–®£¼¤·
˜ÉµÎ „ªnµ 200°C

[ ] Class T3A °œ»µ˜Ä®očoŗo ™oµÂ„p­®¦º°Å°¦³Á®¥…°Š­µ¦ÅªÅ¢Å¤n­µ¤µ¦™˜·—ŢŗoÁ°ŠšÉ¸°»–®£¼¤·
˜µÉÎ „ªµn 180°C

[ ] Class T3B °œ»µ˜Ä®očoŗo ™oµÂ„p­®¦º°Å°¦³Á®¥…°Š­µ¦ÅªÅ¢Å¤n­µ¤µ¦™˜·—ŢŗoÁ°Šš¸É°»–®£¼¤·
˜ÉµÎ „ªnµ 165°C

[ ] Class T3C °œ»µ˜Ä®očoŗo ™oµÂ„p­®¦º°Å°¦³Á®¥…°Š­µ¦ÅªÅ¢Å¤n­µ¤µ¦™˜·—ŢŗoÁ°ŠšÉ¸°»–®£¼¤·
˜É優µn 160°C

[ ] Class T4 °œ»µ˜Ä®očoŗo ™oµÂ„p­®¦º°Å°¦³Á®¥…°Š­µ¦ÅªÅ¢Å¤n­µ¤µ¦™˜·—ŢŗoÁ°Šš¸É°»–®£¼¤·
˜ÎµÉ „ªnµ 135°C

[ ] Class T4A °œ»µ˜Ä®očoŗo ™oµÂ„p­®¦º°Å°¦³Á®¥…°Š­µ¦ÅªÅ¢Å¤n­µ¤µ¦™˜·—ŢŗoÁ°Šš¸É°»–®£¼¤·
˜Îɵ„ªnµ 120°C

[ ] Class T5 °œ»µ˜Ä®očoŗo ™oµÂ„p­®¦º°Å°¦³Á®¥…°Š­µ¦ÅªÅ¢Å¤n­µ¤µ¦™˜·—ŢŗoÁ°Šš¸É°»–®£¼¤·
˜µÎÉ „ªµn 100°C

[ ] Class T6 °œ»µ˜Ä®očoŗo ™oµÂ„p­®¦º°Å°¦³Á®¥…°Š­µ¦ÅªÅ¢Å¤n­µ¤µ¦™˜·—ŢŗoÁ°Šš¸É°»–®£¼¤·
˜É優nµ 85°C

¢°¦r¤„µ¦˜¦ª‹­° - ®œµo 4

„µ¦˜·—˜Ê´Š°»ž„¦–rÅ¢¢jµÄœ¡œÊº šÉ¸°œ´ ˜¦µ¥˜µ¤¤µ˜¦“µœ

Áš‡œ‡· „µ¦ž°j Š„´œ ˜ª´ °¥µn Š°ž» „¦–År ¢¢µj čn Ťnčn

Class I, Division 1 (Zone 0): Á„·—¦¦¥µ„µ«š¸É‹»—˜·—Ţŗo (Flammable atmosphere) °¥¼nÁ­¤° Áž}œ

nªŠÁª¨µœµœÇ

[ ] Intrinsically safe “Ex ia” ……………………………………………. [] []

Class I, Division 1 (Zone 1): Á„—· ¦¦¥µ„µ«šÉ¸‹»—˜·—Ţŗo (Flammable atmosphere) Áž}œ‡¦´ÊŠ‡¦µª
Ážœ} nªŠÁª¨µœµœÇ

[ ] Intrinsically safe “Ex ia” ……………………………………………. [] []

[ ] Intrinsically safe “Ex ib” ……………………………………………. [] []

[ ] Flameproof “Ex d” ……………………………………………. [] []

[ ] pressurized “Ex p” ……………………………………………. [] []

Class I, Division 2 (Zone 2): Á„·—¦¦¥µ„µ«šÉ¸‹»—˜·—Ţŗo (Flammable atmosphere) Ĝ„¦–¸š¸ÉÁ„·—
°» ˜´ Á· ®˜» ®¦°º ¤‡¸ ªµ¤Á­º°É ¤­£µ¡Äœ¦³¦¦‹»/™µn ¥Áš­µ¦ÅªÅ¢ Áž}œªn ŠÁª¨µ­´œÊ Ç

[ ] Intrinsically safe “Ex ia” ……………………………………………. [] []

[ ] Intrinsically safe “Ex ib” ……………………………………………. [] []

[ ] Flameproof “Ex d” ……………………………………………. [] []

[ ] pressurized “Ex p” ……………………………………………. [] []

[ ] Encapsulation “Ex m” ……………………………………………. [] []

[ ] Sand Filling “Ex q” ……………………………………………. [] []

[ ] Nonincendive “Ex n” ……………………………………………. [] []

[ ] Increased safety “Ex e” ……………………………………………. [] []

[ ] Oil Immerse “Ex o” ……………………………………………. [] []

¢°¦¤r „µ¦˜¦ª‹­° - ®œoµ 5

„µ¦Á—œ· ­µ¥Å¢

ª›· „¸ µ¦Á—œ· ­µ¥Å¢¢µj ˜ª´ °¥nµŠ„µ¦Á—œ· Á®¤µ³­¤ ŤnÁ®¤µ³­¤

[ ] RSC, IMC (5 fully threaded) ……………………………………………. [] []
[] []
[ ] Armored Cable …………………………………………….. [] []

[ ] Non-Armored Cable ……………………………………………..

­£µ¡„µ¦˜—· ˜´ŠÊ čŠo µœ¦³Å¢¢µj ¨³¦³¦³µ¥°µ„µ«

„µ¦ž°j Š„´œ„µ¦°µ¦„r ®¦°º ­žµ¦„r Á®¤µ³­¤ ŤnÁ®¤µ³­¤

[ ] „µ¦˜—· ˜Š´Ê °ž» „¦–rÅ¢¢µj [] []
[ ] ­£µ¡°»ž„¦–År ¢¢µj [] []
[ ] „µ¦Á—·œ­µ¥Å¢¢µj [] []
[ ] „µ¦˜°n  µ„¨³„µ¦„¦µª—r [] []
[ ] „µ¦ž°j Š„´œÁ­·¦r‹Å¢¢jµ [] []

¦³¦³µ¥°µ„µ« Á®¤µ³­¤ ŤÁn ®¤µ³­¤

[ ] š«· šµŠ„µ¦¦³µ¥°µ„µ« [] []
[ ] °˜´ ¦µ„µ¦™µn ¥Áš°µ„µ« [] []
[ ] „µ¦Äo Anti-Static Blower [] []
[ ] ¦³ Positive Pressured [] []
[ ] čo Gas Detector Á¡Éº°Á˜°º œ£´¥ [] []

¢°¦¤r „µ¦˜¦ª‹­° - ®œµo 6

…°o Á­œ°Âœ³„µ¦Ä­o µ¦ÅªÅ¢

…°o ¦³ª´Š¡ºÊœ“µœ­µÎ ®¦´‡ªµ¤ž¨°—£¥´ „µ¦¦¦‹­» µ¦ÅªÅ¢
1. ­µ¦Á‡¤Å¸ ªÅ¢˜o°Š™¼„‹´—Á„È Ĝ¡Êºœš¸ÁÉ Œ¡µ³š¸Éž¦µ«‹µ„®¨nŠž¦³„µ¥Å¢
2. ­µ¦Á‡¤¸ÅªÅ¢˜o°ŠÅ¤nÄ®o‡ªµ¤¦o°œÃ—¥„µ¦Äo‡ªµ¤¦o°œ‹µ„Áž¨ªÅ¢ ˜n­µ¤µ¦™Äo‡ªµ¤¦o°œ‹µ„
®¨Šn ‡ªµ¤¦°o œ°Éœº Áœn Å°œÎµÊ œÊµÎ ¦°o œ œÊ夜´ ¦o°œ ¨³°µ„µ«¦o°œÅ—o
3. Ĝ…–³šÉ¤¸ „¸ µ¦™µn ¥Áš…°ŠÁ®¨ªÅªÅ¢Äœ£µœ³Ã¨®³ ‹³˜o°Š®¨„¸ Á¨¥¸É Š„µ¦­žµ¦r„…°ŠÅ¢¢jµ­™·˜¥r
×¥„µ¦šµÎ „µ¦˜n° µ„ (Bonding) ¨³„µ¦˜—· ˜ÊŠ´ ­µ¥—œ·
4. „µ¦¦³µ¥°µ„µ«Áž}œª·›¸„µ¦°´œ®œ¹ÉŠš¸ÉŗoŸ¨ ­Îµ®¦´žj°Š„´œ„µ¦¦ª¤˜´ª ®¦º°­³­¤…°Š­µ¦ÅªÅ¢
ץčo¡´—¨¤—¼—°µ„µ«Äœ…–³š¸É ¤¸„µ¦™nµ¥Áš­µ¦ÅªÅ¢‹µ„£µœ³®œÉ¹ŠÅž­n¼°¸„£µœ³®œÉ¹Š ®¦º°
„µ¦˜°o Š„µ¦Áž—d £µœ³
5. Ĝ…–³šÉ¸­µ¦Á‡¤¸ÅªÅ¢™¼„—¼—‹µ„™´ŠÁ„ȝ®¦º°™¼„¦¦‹»¨Š™´ŠÁ„ȝ £µœ³™´ŠÁ„ȝšÊ´Š‡n¼ ¨³°»ž„¦–r
°œÉº š˜¸É ·—˜ŠÊ´ ÁŒ¡µ³˜´ª ‹³˜°o ŠšµÎ „µ¦˜n° µ„ (Bonding) ¨³˜n°¨Š—·œ (Grounding)
6. „µ¦¦¦‹»­µ¦Á‡¤¸ÅªÅ¢Å¤n‡ª¦™nµ¥®¦º°¦¦‹»Äœ°µ‡µ¦ ®µ„Ťn¤¸„µ¦Á˜¦¸¥¤„µ¦žj°Š„´œš¸ÉÁ¡¸¥Š¡°
˜n°„µ¦Á„—· Å°¦³Á®¥­µ¦ÅªÅ¢­³­¤™¹Š¦³—´ ‡ªµ¤Á…o¤…oœšÁɸ žœ} °œ´ ˜¦µ¥Å—o
7. ‡ª¦¤…¸ °o ¤¨¼ —µo œ‡ªµ¤ž¨°—£¥´ (MSDS) ­Îµ®¦´ ­µ¦Á‡¤Á¸ „È Ūo°oµŠ°Š· Ĝ„µ¦ž’·˜´ ·Šµœ
8. ¦·Áª–š¸É µ¦r‹Â˜Á˜°¦¸É ˜o°ŠÂ¥„‹µ„°µ‡µ¦Á„ȝ­µ¦Á‡¤¸ÅªÅ¢
9. ¦™¥„šÉ¸¤¸Á‡¦Éº°Š¥œ˜rčoÁÊº°Á¡¨·Š‹µ„œÎʵ¤´œ—¸ÁŽ¨ ˜o°Š¤¸¦³žj°Š„´œž¦³„µ¥Å¢š¸ÉÁ‡¦Éº°Š¥œ˜r
¦ª¤š´ÊŠ°ž» „¦–År ¢¢µj šŠÊ´ ®¤—œ¦™¥„

¢°¦r¤„µ¦˜¦ª‹­° - ®œoµ 7

…o°Âœ³œÎµ„µ¦‹—´ Á„ȝ¨³„µ¦ÄŠo µœ­µ¦Á‡¤Å¸ ªÅ¢

1. „µ¦‹´—Á„ȝ­µ¦Á‡¤¸ÅªÅ¢Äœ­™µœšÉ¸Ážd—Äœ¦·Áª–®o°Šš—¨°Š‹³˜o°Š™¼„‹´—Á„ȝĮoœo°¥š¸É­»—Ášnµš¸É
‹µÎ Áž}œ­µÎ ®¦´ „µ¦ÄoŠµœ

2. …°ŠÁ®¨ªÅªÅ¢‹³˜o°ŠÅ¤n˜·—˜Ê´ŠÄœ˜o¼Á¥Èœœ·—šÉ´ªÅž ˜n‡ª¦Ä­nĜ˜o¼Á¥Èœœ·—¡·Á«¬šÉ¸Äo­Îµ®¦´
®°o Šš—¨°Š Á¡¦µ³°ž» „¦–rÅ¢¢jµ…°Š˜oÁ¼ ¥œÈ š¸ÄÉ Äo œ®o°Šš—¨°Š Ánœ ­ª·˜r ®¨°—Å¢ Áš°¦r䭘´š
‹³Áž}œœ·—šœ„µ¦¦³Á—· (Explosion Proof)

3. …°ŠÁ®¨ªÅªÅ¢˜o°ŠÅ¤n„¸—…ªµŠšµŠ°°„…°Š®o°Š ¨³˜o¼‹´—Á„ȝ­µ¦ÅªÅ¢Å¤n˜·—˜´ÊŠÄ„¨o„´ž¦³˜¼
šµŠ°°„ ®¦º°¦·Áª–šµŠÁ—œ·

4. ‹´—Á„ȝ­µ¦Á‡¤Å¸ ªÅ¢Ä®o®µn Š‹µ„®¨nŠ‡ªµ¤¦o°œ ¨³¦·Áª–š¸ÂÉ ­Š°µš˜· ¥­r n°Š™Š¹ ŗo
5. ­µ¦Á‡¤¸ÅªÅ¢‹³˜o°ŠÅ¤n‹´—Á„ȝ ¦ª¤„´­µ¦šÉ¸Áž}œ°°„Ž·Á—É´œ (Oxidizing Agents) Ánœ Áž°¦r¤Š

„µÁœ˜ ®¦º°‡°Á¦˜ Ážœ} ˜oœ
6. ®µo ¤­¼ »®¦¸É ¨³ ®¨Šn šÉ„¸ n°Ä®oÁ„·—ž¦³„µ¥Å¢Ä®®o nµŠ‹µ„¦·Áª–š‹É¸ ´—Á„È …°ŠÁ®¨ªÅªÅ¢
7. ‡ª¦˜—· žµj ¥Â­—Š¦Á· ª–°œ´ ˜¦µ¥ Ĝ¦·Áª–šÉ‹¸ —´ Á„È ­µ¦Á‡¤¸ÅªÅ¢Ä®o´—Á‹œ
8. „µ¦ÄoŠµœ˜o°Š¥¹—®¨„´ Á…oµ„n°œ °°„„°n œ (First in-first out) Á¡É°º ž°j Š„œ´ ­µ¦Á‡¤¸Á­Éº°¤­£µ¡

…°o œ³œµÎ Ĝ„µ¦Îµ¦»Š¦´„¬µ°ž» „¦–šr œ¦³Á·— (Explosion Proof)

1. ˜¦ª‹­°­£µ¡¥µŠ Ž¸¨ …°Š°ž» „¦–År ¢¢µj œ·—šœ¦³Á—· ˜°o Š°¥Ä¼n œ­£µ¡—¸ Ťn µÎ ¦»—Œ„¸ …µ—
®¦°º ®¨—» ¦°n œ

2. ˜¦ª‹­°­£µ¡„µ¦Á—œ· ­µ¥Å¢ (NYY ®¦º° MI) Œœªœ­µ¥Å¢˜°o Š¤¸­£µ¡—Ÿ ¤Œn „¸ …µ— Îµ¦—»
3. ˜¦ª‹­°­£µ¡ µ‡¦°…°Š°»ž„¦–År ¢¢jµœ·—šœ¦³Á—· Áœn „¨°n Š˜n°­µ¥ (Junction Box)

„¨n°Š­ª˜· r „¨n°ŠÁ¦‡Á„°¦r ˜o°Šž¦³„„œ´ °¥µn Š­œš· œœn ®œµ
4. ˜¦ª‹­°­£µ¡šª´É Ş…°Š°ž» „¦–rÅ¢¢jµœ·—šœ¦³Á—· ¦ª¤™Š¹ šn°¦°o ¥­µ¥Å¢ ˜o°Š°¥Än¼ œ­£µ¡

—¸ ŤnÎµ¦—» ®¦°º Áž}œ­œ·¤
5. ‡ª¦šµÎ ‡ªµ¤­³°µ—°ž» „¦–r°¥nµŠ­¤µÉÎ Á­¤°

¢°¦r¤„µ¦˜¦ª‹­° - ®œµo 8

ǦŠ„µ¦‹—´ šµÎ ‡¤¼n º°„µ¦˜¦ª‹­° ˜·—˜´ÊŠ¦³Â¨³°»ž„¦–År ¢¢jµ Ĝ¡œºÊ šÉ¸°´œ˜¦µ¥š¤¸É ¸Å°¦³Á®¥…°Š­µ¦ÅªÅ¢

Á°„­µ¦°oµŠ°·Š

­Îµœ„´ Áš‡ÃœÃ¨¥‡¸ ªµ¤ž¨°—£´¥ „¦¤Ã¦ŠŠµœ°»˜­µ®„¦¦¤

ǦŠ„µ¦‹´—šÎµ‡¤¼n °º „µ¦˜¦ª‹­° ˜·—˜´ÊŠ¦³Â¨³°»ž„¦–År ¢¢jµ Ĝ¡œÊº šÉ¸°œ´ ˜¦µ¥š¸É¤¸Å°¦³Á®¥…°Š­µ¦ÅªÅ¢

Á°„­µ¦°µo Š°·Š

1. „µ¦°°„¦³Â­Š­ªnµŠ ¦ª¤šÊ´Š¦³Å¢¢jµ ¦³­´µ–Á˜º°œ£´¥ ¨³¦³„µ¦
˜·—˜°n ­°ºÉ ­µ¦, ›œ¼¦–r ««·£µœ»Á—: ¦·¬´š Ž¸Á°—È ¥Á¼ ‡œÉ´ ‹Îµ„—´

2. Electrical Installation in Hazardous Locations, Peter J. Schram and Mark W. Earley,
National Fire Protection Association, June 1993

3. National Electrical Codes (NEC), NFPA Battery March Park, Quincy MA, 1990 Edition
4. NFPA Handbook of the National Electrical Code (Fourth Edition), Wilford I. Summers
5. National Electrical Codes Handbook Twenty-fourth Edition Conforms to the 2000 NEC,

Joseph F. Mc Partland and Brian J. Mc Partland, Mc Graw Hill’s
6. Basics of Explosion Protection, R. Stahl Schaltgerate GMBH, A Company of the R.

STAHL Technology Group
7. Ex-Magazine 2003 (Magazine for the installers and operators of explosion protected

electrical installations), R.STAHL Schaltgerate GmbH
8. Electrical Equipment Design for Use in Hazardous Locations, Mark C. Ode (Staff

Engineering Associate Uderwriters Laboratories Inc., December 1999
9. The Quest for Change in North America Codes and Standards Changes in Pursuit of a

Harmonized System, Marty Cole and Jeffrey S Stoyanov, http://www.hubble-canada.com
10. Explosion Protection (Process Automation), SIEMENS, October 2003
11. Ex Digest 2004, Cooper Crouse-Hinds, http://www.crouse-hinds.com
12. Technical Guide “Hazardous Area Reference, Classifications, and Enclosure Data”, NRL

Lighting Product
13. Guidelines on Preventation and Control of Chemical Hazard, Ministry of MANPOWER
14. Hazardous Location Wiring Methods Simplified, http://www.summit.com
15. Fundamentals of ESD, http://www.esda.org
16. Electrostatics and Flexible Intermediate Bulk Containers, Ian Pavey of Chilworth

Technology Ltd: Paper published in Chemical Processing Technology International,
1996
17. Ensuring Proper Ventilation of Paint Mixing Rooms in Auto Refinish Shops,
http://www.epa.gov

­µÎ œ„´ Áš‡ÃœÃ¨¥¸‡ªµ¤ž¨°—£¥´ „¦¤Ã¦ŠŠµœ°˜» ­µ®„¦¦¤ ‡-1